TW201816607A - Uninterruptable power supply computer system with a microprocessor unit to control a central processing unit and a chip set to activate a turn-off procedure according to the discharging rate and turn-off time when the external power source supplies power abnormally - Google Patents

Abstract

An Uninterruptable Power Supply (UPS) computer system is disclosed, which comprises a computer device and an Uninterruptable power source device. The Uninterruptable power source device comprises a capacitive charging/discharging control unit, a capacitor unit, and a microprocessor unit. The capacitor unit has an input/output contact, the input/output contact is connected to the capacitive charging/discharging control unit. The microprocessor unit is connected to the capacitive charging/discharging control unit and the capacitor unit. The microprocessor unit detects the voltage of the input/output contact, estimates the discharging rate of the capacitor unit, and estimates the turn-off time of computer device. When the external power source supplies power abnormally, the microprocessor unit controls a central processing unit and a chip set to activate a turn-off procedure according to the discharging rate and turn-off time. Accordingly, it achieves the automatic and smart Uninterruptable turn-off operation.

Description

UPS computer system

This creation is about a non-stop computer system, especially a non-stop computer system with automatic and intelligent non-stop shutdown operation.

An uninterruptible power supply (UPS) is used to provide electrical load equipment, such as computer equipment, with uninterrupted power when an abnormal situation occurs in the conventional power supply to maintain the normal operation of the electrical load equipment. . Generally speaking, the uninterruptible power system is used to maintain the uninterrupted operation of important commercial or precision equipment such as servers or switches to prevent loss of important data or equipment interruption.

Please refer to FIG. 5 for a description of an uninterruptible power system applied to a computer device. As shown, the input 30 of the continuous side based electrical system and the external computer apparatus 40 receives a power source V _S, the external power source V _S, for example, an AC power (utility power), and the uninterruptible power system 30 The output side is connected to the computer device 40. The uninterruptible power system 30 is electrically connected to the outside of the computer device 40.

The uninterruptible power system 30 via a two-way communication between the control signal S _C to the computer apparatus 40, wherein the bidirectional control signal S _C may be a control signal to a control signal or a USB protocol RS-232 protocol is. When the external power supply V _{S is} normally powered, the uninterruptible power supply system 30 receives the external power supply V _S , so that the external power supply V _S charges and stores internal energy storage elements (not shown) of the uninterruptible power supply system 30. can. When the external power supply V _S is abnormal and fails, the internal energy storage element of the uninterruptible power system 30 is connected to the external power supply V _S and outputs DC power or AC power to the computer device 40 to maintain the computer. Shutdown procedure of the device 40 after uninterrupted operation or abnormal power supply.

The internal energy storage elements used in existing uninterruptible power systems are mostly secondary batteries, or rechargeable batteries, such as lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride batteries, or lithium-ion batteries. . However, due to the disadvantages of high temperature operation of the secondary battery, such as poor cycle life and poor thermal stability, using the secondary battery as the internal energy storage element of the uninterruptible power system 30 will make the uninterruptible power system 30 impossible. Operating environment that is exposed to high temperatures (e.g., above 50 degrees Celsius) for a long time. In other words, if the uninterruptible power system 30 is operated in a high-temperature environment, it will be affected by the characteristics of the secondary battery, which directly causes the operating life of the uninterruptible power system 30 to be reduced or malfunctions, and the computer device cannot be effectively used. 40 provides a highly reliable uninterruptible power supply.

The existing uninterruptible power system has a large enough battery capacity, so in general, it will not immediately start to shut down because of detecting a power outage. On the contrary, the processing method usually uses a battery management mode similar to a notebook computer, performs battery management through an advanced configuration and power interface (ACPI), and uses ACPI to inform the computer device 40 The current remaining power allows users to specify the settings for starting the shutdown process based on the remaining power information.

Furthermore, the operation of restarting the uninterruptible power system is more complicated. Generally, the bidirectional control signal S _C as shown in FIG. 5 is used to wake up the computer device 40 to achieve. If you use RS-232 connection configuration, you need Wake on Modem; if you use USB connection configuration, you need USB HID wake. However, whether the computer device 40 is awakened by Wake on Modem or USB HID wake, it needs the support of the BIOS to operate, and it needs to be turned on by the user in the BIOS setting function. However, because many platforms do not yet have a Wake on Modem or USB HID wake mechanism, it is relatively difficult to restart the system without power.

In addition, ACPI does not have to be concerned UPS battery management, in order to prevent the external power source V _S when the abnormality is such an important cause loss of data stored late condition occurs, typically when the computer apparatus 40 to detect the external power source When V _{S is} abnormal, the shutdown procedure of the computer device 40 will be immediately started, that is, the worst-case scenario will be processed, so that the uninterruptible power system 30 can provide sufficient energy and sufficient time. To complete the shutdown procedure of the computer device 40. Although the described shutdown procedure can ensure the preservation of important data, such a shutdown procedure is inelastic and accurate.

For example, when the abnormality of the external power supply V _S is only caused by non-power interruptions, such as power noise, instantaneous surges or frequency drifts, or short-term (such as tens of seconds) that is the return of power interruptions, etc. In other situations, the computer device 40 does not actually need to perform a shutdown procedure. However, because the computer device 40 detects that the external power supply V _{S is} abnormal, it immediately performs a shutdown procedure. Therefore, in an unstable power supply environment, it may cause Unnecessary frequent startup and shutdown procedures not only directly affect the service life of the computer device 40, but also cause inconvenience to the user. Furthermore, the immediate shutdown procedure when a power outage is detected cannot achieve optimal management of the continuous power time, thereby reducing the power management performance of the computer device 40.

In addition, some of the computer devices 40 have a function of delaying the startup of the shutdown process, that is, the computer device 40 presets the time point of starting the shutdown procedure according to the time required for the fixed shutdown procedure. However, such a shutdown procedure is limited to the use of the computer device 40 and cannot be transplanted to other computer devices or used with a new computer device. Or, once the system resources of the computer device 40 are changed or the performance is reduced, the time required for the entire shutdown process is lengthened, which will cause the voltage of the uninterruptible power system 30 to be insufficient during the shutdown process, resulting in the failure to shut down properly, which is important. The data was lost too late to be stored.

The purpose of this creation is to provide an uninterruptible power supply device to solve the problem of the existing uninterruptible power system which lacks flexibility, automation and intelligence.

In order to achieve the purpose of previous disclosure, the uninterruptible computer system proposed in this creation includes a computer device and a uninterruptible power supply device. The computer device includes a power conversion unit, a central processing unit and a chipset. The power conversion unit receives an external power source, and converts the external power source through at least one power output terminal to correspondingly output at least a DC working power source. The central processing unit and the chipset are connected to the at least one power output terminal of the power conversion unit. The uninterruptible power supply device includes a capacitor charge and discharge control unit, a capacitor unit and a micro processing unit. The capacitor charging and discharging control unit is connected to the at least DC working power supply. The capacitor unit has an input-output contact, and is connected to the capacitor charge-discharge control unit through the input-output contact. The micro-processing unit is connected to the capacitor charge-discharge control unit and the capacitor unit. The micro-processing unit detects the voltage of the input and output contacts, estimates a discharge rate of the capacitor unit, and estimates a shutdown time of the computer device. . Wherein, when the external power supply abnormally supplies power, the capacitor charge and discharge control unit controls the capacitor unit to supply power to the computer device, and the micro processing unit controls the central processing unit and chipset to start the computer according to the discharge rate and the shutdown time. Computer device shutdown procedure.

This creative computer system uses the micro-processing unit to monitor the voltage of the input and output contacts and provides a highly flexible self-learning shutdown function, which can effectively grasp the startup time of the shutdown program and avoid non-cause The abnormality of the external power supply caused by the power interruption causes the unnecessary shutdown procedure to be started, so as to achieve an automatic and intelligent continuous power shutdown operation.

In order to better understand the techniques, methods and effects adopted by this creation to achieve the intended purpose, please refer to the following detailed descriptions and drawings of this creation. I believe that the purpose, characteristics and features of this creation can be in-depth and Specific understanding, however, the drawings are provided for reference and explanation only, and are not intended to limit the creation.

The technical content and detailed description of this creation are described below in conjunction with the drawings. Among them, the thick solid line shown in this creative drawing indicates the direction of power flow, and the thin solid line indicates the direction of signal flow.

Please refer to FIG. 1A. The uninterruptible computer system of the present invention includes a computer device 20 and a uninterruptible power supply device 10. The uninterruptible power supply device 10 is disposed inside the computer device 20. The computer device 20 includes a power conversion unit 21, a central processing unit and a chipset 22. The power conversion unit 21 receives an external power supply V _S , and converts the external power supply V _S , and outputs at least a direct current working power supply V _O1 to V _ON through at least one power output terminal of the power conversion unit 21. The DC working power supply can be 12 volts, 5 volts, 3.3 volts, 1.8 volts, and 1 volt standard voltage specifications used by industrial computers. However, these voltage specifications are not limited.

Specifically, if the external power source V _S is an AC power source, the power conversion unit 21 corresponds to an AC-to-DC converter. For example, if the computer device 20 is powered by an AC utility power with a voltage of 110 volts, that is, the external power source V _{S is} the AC utility power, the power conversion unit 21 uses 110 volts of the AC utility power. The at least DC working power sources V _O1 ~ V _ON converted into 12 volts, 5 volts, 3.3 volts, 1.8 volts, and 1 volt. In addition, if the external power source V _S is a DC power source, the power conversion unit 21 corresponds to a DC-to-DC converter. For example, if the computer device 20 is powered by a direct current power source with a voltage of 24 volts, the power conversion unit 21 converts the voltage of the 24 volt DC power source into 12 volts, 5 volts, 3.3 volts, and 1.8 volts. The at least DC working power supply V _O1 ~ V _ON with 1 volt.

According to the foregoing, for example, the at least DC working power supply V _O1 ~ V _ON may include a first DC working power supply V _O1 with a voltage of 1 volt and a second DC working power supply V _O2 with a voltage of It is 1.8 volts,... And the Nth DC operating power source V _ON , and its voltage is 12 volts. Among them, the at least DC working power sources V _O1 to V _ON of different voltage magnitudes are used to provide the required power for the internal devices, circuits, parts, etc. of the computer device 20.

The central processing unit and the chipset 22 are connected to the at least one power output terminal of the power conversion unit 21 and are powered by a DC working power output by the power conversion unit 21. Generally speaking, the required power supply voltage of the central processing unit and the central processing unit included in the chipset 22 is 1 volt, and the required power supply voltage of the chipset is 1.8 volts or 3.3 volts. Therefore, in this embodiment, In other words, the central processing unit and the chipset 22 are 1 volt output by the first DC operating power supply V _O1 and 1.8 volt output by the second DC operating power supply V _O2 (or output by another DC operating power supply). 3.3 volts) to power the CPU and chipset, respectively, to provide the power required for the CPU and chipset 22 to maintain normal operation.

As shown in FIG. 1A, the uninterruptible power supply device 10 is disposed inside the computer device 20. Specifically, the uninterruptible power supply device 10 is electrically connected to the output side of the power conversion unit 21, and further electrically connects the central processing unit and the chipset 22, as described below. In this embodiment, the uninterruptible power supply device 10 is connected in parallel to the Nth DC operating power source V _ON output from the power conversion unit 21, that is, the uninterruptible power supply device 10 is connected in parallel to 12 volt DC operation Power supply to provide continuous power operation, as detailed below. When the uninterruptible power supply device 10 starts the uninterruptible power operation, the power output by the uninterruptible power supply device 10 is provided through the Nth DC operating power source V _ON . In addition, the electric energy output by the uninterruptible power supply device 10 can also be transmitted back to the power conversion unit 21, and then output through power conversion through the power conversion unit 21, thereby becoming the first DC operation with a lower voltage level. The power source V _O1 , the second DC operating power source V _O2 , etc.

However, it is not limited that the uninterruptible power supply device 10 is connected in parallel to a 12 volt DC working power supply, that is, the output voltage of the uninterruptible power supply device 10 connected in parallel to the power conversion unit 21 can be adjusted according to the needs of practical applications. . Therefore, when the power input and output of the uninterruptible power supply device 10 are the same contact, the internal circuit structure of the computer device 20 may not be changed, and only the uninterruptible power supply device 10 needs to be electrically connected to the power supply. The output side of the conversion unit 21 and the central processing unit and the chipset 22 can realize a highly integrated UPS system.

Referring to FIG. 1B, it is further disclosed that the power conversion unit 21 may be a multi-stage power conversion architecture. FIG. 1B shows a two-stage power conversion architecture, that is, the power conversion unit 21 includes a first-stage conversion unit 211 and a second-stage conversion unit 212, wherein the second-stage conversion unit An input terminal of the unit 212 is electrically connected to an output terminal of the first-stage conversion unit 211. For the convenience of explanation, the voltage value is taken as an example for description. It is assumed that the output of the first DC operating power source V _O1 is 1 volt, the output of the second DC operating power source V _O2 is 1.8 volts, and the (N-1) The output of the DC operating power source V _ON-1 is 5 volts and the N-th DC operating power source V _ON is 12 volts, and the uninterruptible power supply device 10 is connected in parallel to the N-th DC operating power source V _ON .

The two-stage power conversion architecture is applicable to the external power source V _S being an AC power source and a DC power source. In other words, when the external power source V _S is an AC power source, the first-stage conversion unit 211 is an AC-to-DC converter for converting the AC power source to the N-th DC operating power source V _ON . If the external power source V _S is a DC power source, the first-stage conversion unit 211 is a DC-to-DC converter for converting the DC power source into the N-th DC operating power source V _ON .

The N-th DC operating power V _ON output after being converted by the first-stage conversion unit 211 can be transmitted to the second-level converting unit 212 for next-level power conversion, or the N-th DC operating power of the output V _ON can bypass the second-stage conversion unit 212 and output directly from the power conversion unit 21.

When the second-stage conversion unit 212 receives the N-th DC operating power V _ON output from the first-stage conversion unit 211, the second-stage conversion unit 212 steps down and converts the N-th DC operating power V _ON to The first DC operating power source V _O1 , the second DC operating power source V _O2, ... and the (N-1) th DC operating power source V _ON-1 . According to the foregoing description, the N-th DC operating power source V _ON of 12 volts is step-down converted to the first DC operating power source V _O1 of 1 volt, the second DC operating power source V _{O2 of} 1.8 volt ... The (N-1) th DC operating power supply V _ON-1 . However, the above voltage values are for example only, not intended to limit the use of this creation.

In addition, if the external power source V _S is a 12-volt DC input power source, it is equivalent to the N-th DC operating power source V _ON output by the first-stage conversion unit 211. Therefore, in another embodiment, it may be The first-stage conversion unit 211 is omitted, that is, the 12-volt external power source V _S is directly input to the second-stage conversion unit 212, so that the first constant output of the second-stage conversion unit 212 can also be achieved. The current working power supply V _O1 , the second DC working power supply V _O2, ... and the (N-1) th DC working power supply V _ON-1 , and the external power supply V _S bypasses the second-stage conversion unit 212 directly from the power supply. The N-th DC operating power source V _ON output from the conversion unit 21.

Please refer to FIG. 2. The main difference between this embodiment and the embodiment shown in FIG. 1A is that the uninterruptible power supply device 10 of the embodiment shown in FIG. 2 is disposed outside the computer device 20. Without changing the internal circuit structure of the computer device 20, the uninterruptible power supply device 10 can electrically connect the power conversion unit 21, the central processing unit, and the chipset 22 through a communication interface provided by the computer device 20. . For example, the uninterruptible power supply device 10 may be designed as a high-speed peripheral component interconnect express interface card (PCI-E card) in a plug and play manner. Plugged into a PCI-E slot (not shown) of the computer device 20, that is, without installing or setting any software and drivers, so that the output of the uninterruptible power supply device 10 and the power conversion unit 21 The CPU and the chipset 22 are electrically connected to each other.

As shown in FIG. 3, the uninterruptible power supply device 10 includes a capacitor charge / discharge control unit 11, a capacitor unit 12 and a micro processing unit 13. The capacitor charge and discharge control unit 11 is electrically connected to the capacitor unit 12 to provide charge and discharge control for the capacitor unit 12, which will be described in detail later.

In this creation, the capacitor unit 12 may be a complex super capacitor (cap), or an electric double layer capacitor (EDLC), which is composed of serial and parallel connections. Specifically, a plurality of supercapacitors are connected in parallel and in series to form the supercapacitor group, which is used to store electrical energy to provide an appropriate working voltage. For example, the super capacitor group can be two strings in parallel, each string consists of four super capacitors, and each super capacitor has a specification of 2.7 volts and 100 farads. Therefore, the super capacitor group can provide a voltage of 10.8 volts. And store about 600mAh of power. In addition, since the capacitor unit 12 has a very low internal resistance, the capacitor charge and discharge control unit 11 charges the capacitor unit 12 in a constant current manner, so that the super capacitor group can be extended as the capacitor. The service life of the unit 12.

The micro processing unit 13 is a microprocessor (µP), which is a integrated circuit that can be programmed for a specific purpose. In this creation, the micro processing unit 13 is mainly responsible for controlling the computer device 20 to be turned on and off, which will be described later. The micro processing unit 13 is electrically connected to the capacitor charge and discharge control unit 11 and the capacitor unit 12. Taking FIG. 3 as an example, the power input and output of the uninterruptible power supply device 10 are the same contact, hereinafter referred to as the charge and discharge contact P _CD , where the charge and discharge contact P _CD is the uninterruptible power supply device 10 Power input (or output) contact. The micro processing unit 13 is electrically connected to the charge and discharge contact P _CD to detect the voltage of the charge and discharge contact P _CD . The micro processing unit 13 is electrically connected to an input / output contact P _{SC of} the capacitor unit 12 to detect the voltage of the input / output contact P _SC .

In addition, referring to FIG. 1A, FIG. 1B or FIG. 2, the micro-processing unit 13 is electrically connected to the CPU and the chipset 22. Specifically, the micro processing unit 13 transmits a system control signal S _SC to the CPU and the chipset 22 and receives a system status signal S _SS transmitted by the CPU and the chipset 22. A two-way communication operation is achieved with the central processing unit and the chipset 22, which will be described later.

Referring to FIG. 4, a detailed circuit block diagram of the capacitor charge and discharge control unit 11 is further disclosed. In this creation, the capacitor charging and discharging control unit 11 includes a capacitor charging step-down circuit 111, a capacitor discharging switch circuit 112, and a capacitor discharging step-up circuit 113. The capacitor charging step-down circuit 111 is operated when the external power supply V _S is under normal power supply, and the capacitor discharge switching circuit 112 and the capacitor discharge boosting circuit 113 are performed when the external power supply V _S is abnormal. What happened when it happened, the detailed description is as follows.

As shown in FIG. 1A, it is assumed that the uninterruptible power supply device 10 is disposed inside the computer device 20, and the power input and output of the uninterruptible power supply device 10 are the same contact (that is, the charging and discharging contact P _CD ), And the Nth DC operating power source V _ON connected to the power conversion unit 21 in parallel has a voltage of 12 volts.

(1) First charging mode: When the external power supply V _S is a normal power supply, the power conversion unit 21 converts the external power supply V _S to the N-th DC operating power supply V _ON and charges the step-down circuit through the capacitor. 111 converts (steps down) the Nth DC working power source V _ON to a rated charging voltage of the capacitor unit 12, for example, a voltage of 11 volts, so as to effectively charge and store the capacitor unit 12. The capacitor charging step-down circuit 111 may be a non-isolated DC-to-DC converter, such as a buck converter and a buck-boost converter. boost converter); or isolated DC-to-DC converter, such as flyback converter, forward converter. However, it is not based on the above. These converter configurations are restricted. Therefore, in the first charging mode operation, the capacitor discharge switch circuit 112 and the capacitor discharge boost circuit 113 are in an idle state, that is, the flow of electrical energy is controlled by the external power source V _S through the capacitor charge and discharge. The capacitor charging step-down circuit 111 of the unit 11 reaches the capacitor unit 12 of the uninterruptible power supply device 10.

In the first charging mode operation, the micro processing unit 13 continuously monitors the voltage of the capacitor unit 12, that is, the voltage of the input-output contact P _SC . When the capacitor unit 12 is continuously charged, the voltage of the input-output contact P _SC gradually increases. When the voltage at the input / output contact P _SC is greater than or equal to a startup voltage level, the startup voltage level may be preset to 10 volts. However, without this limitation, the micro processing unit 13 outputs the system control The signal S _SC or the system control signal S _SC is output to a high level to the CPU and the chipset 22 to allow the computer device 20 to be restarted. Conversely, if the capacitor unit 12 is continuously charged and the voltage at the input / output contact P _SC is still less than the power-on voltage level, the micro processing unit 13 does not output the system control signal S _SC or output the system control The signal S _SC is at a low level to the CPU and the chipset 22, and the computer device 20 is not allowed to be restarted yet.

The specific description is as follows. When the computer device 20 is abnormal in the external power supply V _S , the capacitor unit 12 of the uninterruptible power supply device 10 is connected to the external power supply V _S to supply power to the computer device 20 (after-capacity discharge mode). (Detailed description). Therefore, the voltage of the input-output contact P _SC of the capacitor unit 12 is gradually reduced, so that the micro-processing unit 13 controls the computer device 20 to shut down. Until the external power supply V _S returns to normal power supply, the external power supply V _S charges the capacitor unit 12. Therefore, the voltage of the input-output contact P _SC gradually increases. If the capacitor unit 12 is continuously charged and the voltage at the input / output contact P _SC is still less than the power-on voltage level, the micro processing unit 13 does not output the system control signal S _SC or the system control signal S _SC is at a low level to the CPU and chipset 22, and the computer device 20 is not allowed to be restarted yet. Conversely, when the voltage at the input / output contact P _SC is greater than or equal to the power-on voltage level, the micro processing unit 13 outputs the system control signal S _SC or outputs the system control signal S _SC to a high level to the central processing unit. With chipset 22 to allow the computer device 20 to be able to be restarted.

(2) First discharge mode: When an abnormal condition of the external power supply V _S occurs, the capacitor charge and discharge control unit 11 controls the capacitor unit 12 to supply power to the computer device 20 through the capacitor discharge switch circuit 112 so that the computer device 20 Before the computer device 20 completes the correct and complete shutdown procedure before the external power source V _S returns to power supply, or when the external power source V _S is abnormal due to power interruption, unnecessary shutdown procedures can be avoided. When the capacitor unit 12 continues to supply power to the computer device 20, it is a discharging behavior, and the voltage of the input-output contact P _SC of the capacitor unit 12 gradually decreases.

For example, the initial voltage (the voltage of the input-output contact P _SC ) when the capacitor unit 12 starts to discharge is 11 volts. When the capacitor unit 12 starts to discharge, the computer device 20 is powered by the capacitor discharge switch circuit 112. Therefore, in the first discharge mode operation, the capacitor charge-down circuit 111 and the capacitor discharge-boost circuit 113 are in an idle state, that is, the flow of electrical energy is controlled by the capacitor unit 12 via the capacitor charge and discharge The capacitor discharge switch circuit 112 of the unit 11 reaches the computer device 20.

During the discharge of the capacitor unit 12, when the voltage of the input-output contact P _SC is greater than a discharge mode switching voltage, the discharge mode switching voltage can be preset to 10 volts. However, the capacitor is not limited to this. The charge and discharge control unit 11 is maintained in the first discharge mode operation. That is, when the voltage drop at the input-output contact P _SC is 10.8 volts, the uninterruptible power supply device 10 supplies power to the computer device 20 at 10.8 volts; when the voltage drop at the input-output contact P _SC is 10.5 At volts, the uninterruptible power supply device 10 supplies power to the computer device 20 at 10.5 volts. When the voltage at the input / output contact P _SC is less than or equal to the discharge mode switching voltage, the discharge mode is switched, as described below.

(3) Second discharge mode: As described above, when the voltage at the input-output contact P _SC is less than or equal to the discharge mode switching voltage, the capacitor charge and discharge control unit 11 controls the capacitor unit 12 to discharge through the capacitor. The booster circuit 113 supplies power to the computer device 20. Therefore, in the second discharge mode operation, the capacitor charging step-down circuit 111 and the capacitor discharge switching circuit 112 are in an idle state, that is, the flow of electrical energy is controlled by the capacitor unit 12 via the capacitor charge and discharge control unit. The capacitor discharge booster circuit 113 reaches the computer device 20.

For example, when the voltage at the input-output contact P _SC is less than or equal to 10 volts (that is, the discharge mode switching voltage) and the capacitor unit 12 continues to discharge, the voltage output by the capacitor unit 12 (that is, the input-output The voltage of the contact P _SC ) is to boost the voltage of the input-output contact P _SC (less than or equal to 10 volts) to the charging voltage suitable for the computer device 20 through the capacitor discharge boost circuit 113, such as 10 volts. , So that the capacitor charging and discharging control unit 11 provides a suitable voltage to power the computer device 20. The capacitor discharge boost circuit 113 can be a non-isolated DC-to-DC converter, such as a boost converter, a buck-boost converter; or an isolated DC-to-DC converter. The converter is implemented by, for example, a flyback converter or a forward converter. However, it is not limited to the aforementioned converter configurations.

In the second discharge mode operation, the voltage of the input-output contact P _SC can be reduced to a critical low-voltage level, where the critical low-voltage level can be about 2 volts, that is, when the input-output After the voltage of the contact P _SC is less than or equal to 10 volts, the operation is switched to the second discharge mode, and when the voltage of the input and output contact P _SC is greater than or equal to the critical low voltage level, it can be discharged through the capacitor. The boost circuit 113 boosts the voltage of the input-output contact P _SC to provide a suitable voltage to power the computer device 20. Therefore, through the boosting operation of the capacitor discharge boosting circuit 113, the energy stored in the capacitor unit 12 is fully output, so that the utilization rate of the capacitor unit 12 can be greatly improved.

Furthermore, the micro-processing unit 13 of the present invention provides a shutdown function with highly flexible self-learning, which is described below. The micro processing unit 13 can record the time required for each (or long-term) normal shutdown of the computer device 20, and through a self-learning mechanism or algorithm, such as a neural network, logistic regression, Fuzzy set or decision tree, etc. However, it is possible to accurately estimate the time required for the complete shutdown of the computer device 20 (ie, from shutdown to shutdown) without limiting the algorithms described above. Time to complete), so it is not limited to the time required to shut down the computer device 20 due to aging or reduced performance, or other factors, and affects the uninterruptible power supply device 10 to continuously power the computer device 20 operating. Therefore, through the shutdown function provided by the micro-processing unit 13 with highly flexible self-learning, it is possible to effectively grasp the start time of the shutdown procedure and avoid unnecessary shutdown procedures caused by abnormalities of the external power supply V _S caused by power interruption. Start.

Since the micro-processing unit 13 continuously monitors the voltage of the input-output contact P _SC of the capacitor unit 12, the capacitance unit 12 can be obtained by calculating the voltage-time differential of the input-output contact P _SC . The discharge rate. Furthermore, since the discharge rate of the capacitor has a positive correlation with time, the micro-processing can be performed according to the obtained discharge rate of the capacitor unit 12 and the time required for the complete shutdown of the computer device 20 obtained through the algorithm described above. The unit 13 can accurately and adaptively start the time point of the shutdown procedure to achieve the optimized continuous power control and operation.

Assume that the time required for the complete shutdown of the computer device 20 to be obtained through an algorithm is 30 seconds (normally, the complete shutdown time is approximately tens of seconds), and the discharge rate of the capacitor unit 12 is 0.1 volts per second, that is, every 10 seconds Decrease 1 volt. In addition, according to the foregoing description, when the voltage of the input-output contact P _SC reaches 2 volts (the critical low voltage level), the capacitor discharge boost circuit 113 cannot further boost the voltage of the input-output contact P _SC Critical low voltage level. Therefore, when the abnormal situation of the external power supply V _S occurs, the aforementioned first discharge mode is started, and the capacitor unit 12 starts to discharge from 11 volts (the initial voltage at the start of discharge), which is different from the existing continuous system that immediately starts the shutdown process or The startup shutdown procedure with a fixed time delay. This creation has a highly flexible self-learning shutdown function based on the estimated shutdown time (30 seconds) and the calculated discharge rate (0.1 volts per second). Therefore, when the first discharge When the mode is started, the computer device 20 has not yet started a shutdown procedure, and when the second discharge mode is switched on and started, the computer device 20 has not yet started a shutdown procedure.

The micro-processing unit 13 does not start the shutdown procedure until the voltage of the input-output contact P _SC decreases to 5.5 volts or even 5.2 volts or lower. Among them, when the voltage of the input and output contact P _SC is reduced to 5.5 volts and then to 3.5 volts between 2 volts at the critical low voltage level, 35 seconds of shutdown time can be provided, or 5.2 volts can be reduced to the threshold again. The low voltage level of 3.2 volts between 2 volts can provide a shutdown time of 32 seconds, which is enough to complete the time required for the computer device 20 to shut down (30 seconds). It also provides sufficient shutdown time to store important data in a comprehensive manner. Therefore, the shutdown procedure of the computer device 20 can be accurately started.

Furthermore, the time 55 seconds before the voltage at the input-output contact P _SC reaches 5.5 volts before the shutdown procedure is initiated (that is, the time at which the voltage at the input-output contact P _SC decreases from 11 volts to 5.5 volts between 5.5 volts) In addition to maintaining the normal operation of the computer device 20, the external power supply V _S resumes normal power supply within the aforementioned 55 seconds, such as eliminating abnormal conditions caused by a power outage or returning power in a short time (such as tens of seconds). Interruption will prevent the computer device 20 from starting unnecessary shutdown procedures.

In addition, the shutdown program executed by the micro processing unit 13 can be transplanted to other computer devices or newer computer devices, as long as the voltage monitoring of the input and output contacts P _SC is performed through the micro processing unit 13 and cooperate with Highly flexible self-learning shutdown function can achieve automatic and intelligent continuous power shutdown operation.

In summary, this creative department has the following characteristics and advantages:

1. The use of super capacitors has the advantages of large capacity, small size, fast charge and discharge times of more than 100,000 times, and better high temperature operation performance that can allow up to 70 degrees Celsius, replacing the secondary battery as the capacitor unit 12 The application can provide a higher operating temperature range and a longer service life.

2. Without changing the internal circuit structure of the computer device 20, it is only necessary to electrically connect the uninterruptible power supply device 10 to the output side of the power conversion unit 21 and the central processing unit and chipset 22 to achieve high power. Integrated UPS system.

3. In the second discharge mode operation, the use rate of the capacitor unit 12 can be greatly improved through the boost operation of the capacitor discharge boost circuit 113.

4. Through the micro processing unit 13, the voltage monitoring of the input and output contacts P _SC and the shutdown function provided with highly flexible self-learning can not only effectively grasp the startup time point of the shutdown program, but also provide sufficient shutdown time to improve store important data, while avoiding non-interruption due to power anomalies of the external power supply V _S led to the shutdown caused by unnecessary startup programs, in order to reach with automation and intelligence of the uninterruptible power shutdown.

However, the above are only detailed descriptions and drawings of the preferred specific embodiments of the creation, but the characteristics of the creation are not limited to this, and are not intended to limit the creation. The entire scope of the creation should be applied as follows The scope of patents shall prevail. All the embodiments that are in line with the spirit of the patent scope of this creation and similar changes shall be included in the scope of this creation. Anyone who is familiar with the art can easily think about it in the field of this creation. Variations or modifications can be covered by the patent scope of the following case.

10‧‧‧Uninterruptible Power Supply Unit

11‧‧‧Capacitor charge and discharge control unit

12‧‧‧ capacitor unit

13‧‧‧Micro Processing Unit

111‧‧‧Capacitor Charging Buck Circuit

112‧‧‧Capacitor discharge switch circuit

113‧‧‧Capacitor discharge boost circuit

20‧‧‧Computer device

21‧‧‧Power Conversion Unit

22‧‧‧Central Processing Unit and Chipset

211‧‧‧First-level conversion unit

212‧‧‧Second level conversion unit

30‧‧‧Uninterruptible Power System

40‧‧‧Computer device

V _S ‧‧‧External Power

V _O1 ‧‧‧ the first DC working power supply

V _O2 ‧‧‧second DC working power supply

V _ON-1 ‧‧‧th (N-1) DC working power supply

V _ON ‧‧‧Nth DC working power supply

S _SC ‧‧‧System control signal

S _SS ‧‧‧System status signal

P _CD ‧‧‧ Charge and discharge contact

P _SC ‧‧‧I / O contact

S _C ‧‧‧Two-way control signal

FIG. 1A is a block diagram illustrating an embodiment in which an uninterruptible power supply device is applied to a computer device. FIG. 1B is a detailed block diagram of the power conversion unit in the embodiment shown in FIG. 1A. FIG. 2 is a schematic block diagram of an embodiment in which the uninterruptible power supply device is applied outside the computer device. Figure 3: A block diagram of the uninterruptible power supply device for this creation. Figure 4: A block diagram of a capacitor charge and discharge control unit and a capacitor unit for this creation. FIG. 5 is a block diagram of an existing uninterruptible power system applied to a computer device.

Claims (10)

A non-stop computer system includes: a computer device including: a power conversion unit that receives an external power source and converts the external power source to output at least a direct current working power source through at least one power output terminal; and a central processing unit and A chipset connected to the at least one power output terminal of the power conversion unit; and a uninterruptible power supply device including: a capacitor charge and discharge control unit connected to the at least DC working power supply; a capacitor unit having an input-output connection And connect the capacitor charge and discharge control unit through the input and output contacts; and a micro processing unit that connects the capacitor charge and discharge control unit and the capacitor unit, wherein the micro processing unit detects the voltage level of the input and output contacts , Estimate a discharge rate of the capacitor unit, and estimate a shutdown time of the computer device; wherein, when the external power supply abnormally supplies power, the capacitor charge and discharge control unit controls the capacitor unit to supply power to the computer device, and the microprocessing Unit according to the discharge rate and the shutdown At the same time, the CPU and the chipset are controlled to start the shutdown procedure of the computer device. The uninterrupted computer system according to claim 1, wherein the capacitor charging and discharging control unit includes: a capacitor charging step-down circuit connected between the power output terminal and the capacitor unit, wherein when the external power supply normally supplies power, the at least A DC working power source charges the capacitor unit through the capacitor charging step-down circuit; a capacitor discharge switching circuit connects the power output terminal and the capacitor unit, wherein when the external power source abnormally supplies power and the voltage of the input and output contacts When it is greater than or equal to a startup voltage level, the capacitor unit supplies power to the computer device through the capacitor discharge switch circuit; and a capacitor discharge boost circuit connects the power output terminal and the capacitor unit, and when the external power source is abnormal When power is supplied, and the voltage of the input / output contact is less than the startup voltage level and greater than or equal to a critical low voltage level, the capacitor unit supplies power to the computer device through the capacitor discharge boost circuit. The uninterrupted computer system according to claim 1, wherein the input and output of the capacitor charge and discharge control unit are the same contacts. The uninterrupted computer system according to claim 1, wherein the input and output of the capacitor charge and discharge control unit are different contacts. The uninterruptible power computer system as described in any one of claims 1 to 4, wherein the uninterruptible power supply device is provided inside the computer device. The uninterruptible power computer system according to any one of claims 1 to 4, wherein the uninterruptible power supply device is provided outside the computer device. The uninterruptible power supply computer system according to claim 6, wherein the uninterruptible power supply device is disposed on a high-speed peripheral component interconnection interface card for plugging in and connecting the computer device. The uninterruptible computer system according to claim 1, wherein the capacitor unit is composed of at least one super capacitor. The uninterrupted computer system according to claim 1, wherein the micro processing unit estimates the shutdown time of the computer device according to an algorithm of any one of neural network, logistic regression, fuzzy set, or decision tree. The uninterrupted computer system according to claim 2, wherein the capacitor charging and step-down circuit is any one of a buck converter, a buck-boost converter, a flyback converter, or a forward converter; the The capacitor discharge boost circuit is any of a boost converter, a buck-boost converter, a flyback converter, or a forward converter.