CN1111370A - Power supply for computer room - Google Patents

Abstract

The invention relates to a power supply device suitable for being used in a computer room, which is matched with original computer power equipment for use. It is composed of independent power supply, single-chip microprocessor, a group of switch devices, ROM and high-low speed switching device. The storage has time data, the single chip automatically controls each switch device to be in an off state according to the set time and time sequence when the computer keyboard has no input signal, and further controls the computer to work at low speed, close the display, the printer, the disk machine and the computer in sequence, and automatically opens the equipment when the keyboard is input. It features saving energy and being compatible with original computer power supply equipment.

Description

The present invention relates to a power auxiliary device, more specifically to a power supply for a computer room.

The power supply used by the computer room equipment, as shown in Figure 2, the input AC power 21 is generally divided into two channels, one is directly input to the display device 23, etc., and the other is rectified and stabilized by the power supply 22, and then input to the disk Machine 24 and computer motherboard 25 etc., provide operating power for this type of device.

The computer equipment used by general companies is basically turned on at work and not turned off until after get off work. The actual use of the computer is limited, which virtually causes unnecessary waste of energy.

The purpose of the present invention is to design a power supply for computer rooms to meet the requirements of power saving and energy saving. The time parameters are set in advance, and when there is no keystroke operation within the predetermined time, it will automatically control Cut off the power supply of the equipment in the computer room, and automatically control the power supply of these equipment when there is a keystroke operation.

The power supply for a computer room of the present invention includes the original computer power supply equipment, an independent power supply circuit for rectifying and stabilizing output of alternating current, a single-chip microprocessor connected to the DC output end of the independent power supply circuit, and a single-chip microprocessor connected to the A read-only memory characterized by:

It also includes a first switch device, the switch control end of the first switch device is connected to an output end of the single-chip microprocessor, and the two switch ends of the first switch device are respectively connected to the AC power supply and the AC power supply end of the original computer power supply equipment, the first The power supply terminal of the switching device is connected to the DC output terminal of the independent power supply circuit;

It also includes a second switch device, the switch control end of the second switch device is connected to the output end of the single-chip microprocessor, and the two switch ends of the second switch device are respectively connected to the AC power supply and the AC power supply end of the peripheral equipment in the machine room, and the second switch The power supply terminal of the device is connected to the DC output terminal of the original computer power supply equipment;

It also includes a third switch device, the switch control end of the third switch device is connected to the first output end of the single-chip microprocessor, and the two switch ends of the third switch device are respectively connected to the DC output end of the original computer power supply equipment and the DC power supply end of the disk drive , the power supply terminal of the third switching device is connected to the DC output terminal of the original computer power supply equipment;

It also includes a keyboard input interface circuit arranged between the single-chip microprocessor and the computer keyboard to receive the input signal of the computer keyboard, and a circuit arranged between the single-chip microprocessor and the keyboard interface of the computer motherboard to transmit the input signal of the computer keyboard to the computer host The keyboard output interface of the board keyboard interface.

It also includes a high-low speed switching device connected to an output end of the single-chip micro-processing, and the output end of the high-low speed switching device is connected to a TURBO/NORMAL switch of a computer main board.

The second switch device is composed of switches corresponding to the number of peripheral equipment in the machine room.

According to the preset time parameters stored in the read-only memory, when the computer keyboard does not have any input signal within the appropriate time specified by the time parameters, each output terminal of the single-chip microprocessor will output or according to the time parameters Output the control signals to the high and low speed switching device or the three switching devices respectively in long and short order. For example, first control the computer to work at low speed, then control to turn off the power of peripheral devices such as monitors or printers, then turn off the power of the disk drive, and finally turn off the power of the computer. , as long as the computer keyboard has an input signal, the single-chip microprocessor turns on all peripheral devices, computers, disk drives, etc. through each switch device.

The technology of the present invention is further described below in conjunction with the accompanying drawings of the embodiments:

Figure 1 is a structural schematic diagram of a power supply for a computer room.

Fig. 2 is a schematic diagram of the power supply of the original computer power supply equipment.

Referring to Fig. 1, the AC power is input into the independent power supply circuit 11 of the power supply 1 through the power plug 21, rectified and stabilized and output as DC to the single-chip microprocessor 12 and the first switching device 13, and the single-chip microprocessor 12 outputs control The signal is sent to the switch control end of the first switch device 13 to control the conduction or off state of the switch device 13, so that the AC power input by the power plug 21 is transmitted to the original computer power supply equipment 22 through the first switch device 13, and the original computer The power supply device 22 rectifies and stabilizes the AC power input by the switch device 13 , and then outputs appropriate DC voltages to the second switch device 14 , the computer motherboard 23 and the third switch device 19 respectively. The single-chip microprocessor 12 outputs a control signal to the second switch device 14 to control its on or off state, so that the AC power introduced by the power plug 21 can be respectively output to other parts of the computer through the second switch device 14. Peripherals 24, such as monitors, printers, etc.

The read-only memory 15 is used to store preset time parameters, and the single-chip microprocessor 12 reads the time data in the read-only memory 15 to control the switch devices 13 and 14 in good time. Single-chip microprocessor 12 connects computer keyboard 25 by keyboard input interface 16, to receive the input signal of computer keyboard 25, single-chip microprocessor 12 connects the keyboard interface 26 of computer motherboard by keyboard output interface 17, to computer keyboard 25 The input signal is transmitted to the keyboard interface 26 of the computer motherboard.

The single-chip microprocessor 12 also outputs a control signal to the high-low speed switching device 18, and the high-low speed switching device 18 is connected with the TURBO/NORMAL switch 27 of the computer motherboard to control high and low speed switching. In addition, the single-chip microprocessor 12 can also output a control signal to the third switch device 19 to control its on or off state, so that the DC voltage output by the original computer power supply device 22 can be transmitted to the computer through the third switch device Disk drive 28.

During the actual operation of the present invention, the time parameter can be set according to an appropriate time and stored in the read-only memory 15, so as to provide the time basis for the single-chip microprocessor 12 to perform control processing. For example, if the keyboard has no input signal after 3 minutes, the computer will be reduced to a low speed; if the keyboard has no input signal after 5 minutes, the display will be turned off; if the keyboard has no input signal after 10 minutes, the disk drive will be turned off; if the keyboard has no input signal after 15 minutes then shut down the computer.

After completing the above-mentioned time setting, the single-chip microprocessor 12 will monitor the use status of the computer keyboard 25 through the keyboard input interface 16, and when the keyboard 25 does not have any input signal after 3 minutes, the single-chip microprocessor 12 outputs the control signal to high Low-speed switching device 18, and then switch the TURBO/NORMAL switch 27 of computer motherboard, to switch to low speed; When keyboard 25 does not have any input signal after 5 minutes, single-chip microprocessor 12 outputs control signal to switch device 14, closes Display 24 and other peripheral equipment; When keyboard 25 does not have any input signal after 10 minutes, single-chip microprocessor 12 outputs control signal to switch device 19, and then closes disk drive 28; When keyboard 25 does not have any input after 15 minutes signal, the single-chip microprocessor 12 will output a control signal to the switch device 13, and then close the original computer power supply 22, so that the computer motherboard 23 becomes a shutdown state. Now, although the power supply of computer peripheral equipment such as display, printer, magnetic disk drive etc. is all closed, single-chip microprocessor 12 still remains as monitoring state, when computer keyboard 23 has signal output, this single-chip microprocessor 12 will Then output the control signal to make the switching devices 13, 14, 19 return to the conduction state, and restart the computer and peripheral equipment to the initial state.

The invention has the advantages of saving energy, improving equipment use efficiency, being compatible with the original computer power supply equipment, and being easy and fast to install.

Claims (3)

1, a kind of power supply device for use in computer room, comprise former computer power supply equipment, to alternating current carry out rectifying and voltage-stabilizing output the independent current source circuit, with independent current source circuit dc output end chip microprocessor that is connected and the read-only memory that is connected with chip microprocessor, it is characterized in that:

Also comprise first switchgear, the switch control end of first switchgear is connected with chip microprocessor one output terminal, two switch terminals of first switchgear connect the AC power end of AC power and former computer power supply equipment respectively, the dc output end of the power supply termination independent current source circuit of first switchgear;

Also comprise the second switch device, the switch control end of second switch device is connected with chip microprocessor one output terminal, two switch terminals of second switch device connect the AC power end of AC power and machine room peripherals respectively, the dc output end of the former computer power supply equipment of power supply termination of second switch device;

Also comprise the 3rd switchgear, the switch control end of the 3rd switchgear is connected with chip microprocessor one output terminal, two switch terminals of the 3rd switchgear connect the dc output end and the disk drive dc power supply terminal of former computer power supply equipment respectively, the dc output end of the former computer power supply equipment of power supply termination of the 3rd switchgear;

Also comprise be arranged between chip microprocessor and computor-keyboard, receive the keyboard input interface circuit of computor-keyboard input signal and be arranged on chip microprocessor and the computer motherboard keyboard interface between, the input signal of computor-keyboard transferred to the keyboard output interface of computer motherboard keyboard interface.

2, power supply device for use in computer room according to claim 1 is characterized in that also comprising the high and low speed switching device that is connected with chip microprocessor one output terminal, and the high and low speed switching device output terminal connects the TURBO/NORMAL switch of computer motherboard.

3, power supply device for use in computer room according to claim 1 is characterized in that described second switch device is made up of the switch corresponding with the machine room number of peripheral devices.

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