TWI742921B - Electronic device, power adapter, and electronic device product - Google Patents

Abstract

An electronic device is adapted to a first connector of a power adapter. The first connector includes at least one conductive portion. The electronic device includes a second connector and a controller. The second connector includes a plurality of conductive elements, a detection node, a plurality of first resistors, a reference node and a second resistor. The conductive elements are disposed separately from each other. At least one of the conductive elements could be correspondingly electrically connected to the conductive portion of the first connector. Each first resistor is respectively electrically connected to the conductive elements, and the first resistors are coupled to the detection node. The second resistor couples the detection node with the reference node. The controller is electrically connected to the second connector and configured to detect a detection voltage value of the detection node and determine a specification of the power adapter according to the detection voltage value.

Description

Electronic device, power adapter and electronic device products

The present invention relates to an electronic device, a power adapter, and an electronic device product thereof, and particularly relates to an electronic device, a power adapter, and an electronic device product thereof.

Traditional electronic devices usually require a transformer, and an external power source can supply power to the electronic device through the transformer. The rated capacity (wattage) of the transformer must meet the required specifications of the electronic device in order to prevent the transformer from overheating or to exert the performance of the transformer. For example, if the rated capacity of the transformer is less than the required specification of the electronic device, it may cause overload (overheating) of the transformer; if the rated capacity of the transformer is greater than the required specification of the electronic device, the performance of the transformer cannot be exerted.

Generally, the user needs to manually determine whether the rated capacity of the transformer meets the required specifications of the electronic device. This method is relatively time-consuming and manual judgment is also prone to misjudgment.

Therefore, there is an urgent need to propose a new technology that can improve the aforementioned conventional problems.

Therefore, the present invention provides an electronic device, a power adapter and an electronic device product thereof, which can improve the conventional problems.

An embodiment of the present invention provides an electronic device. The electronic device is adapted to be connected to a first connector of a power adapter, and the first connector includes a conductive part. Electronic device It includes a second connector and a controller. The second connector includes a plurality of conductive elements, a detection node, a plurality of first resistors, a reference node and a second resistor. The conductive elements are arranged separately from each other, and at least one of the conductive elements can be correspondingly conducted to the conductive part connected to the first connector. The first resistors are electrically connected to the conductive elements, and the first resistors are coupled to the detection node. The second resistor is coupled to the detection node and the reference node. The controller is electrically connected to the second connector and used to detect a detection voltage value of the detection node, and determine the specifications of the power adapter according to the detection voltage value.

Another embodiment of the present invention provides a power adapter. The power adapter is suitable for connecting with a second connector of an electronic device, and the second connector includes a plurality of conductive elements. The power adapter includes a transformer module and a first connector. The first connector is electrically connected to the transformation module and includes an insertion portion and a conductive portion. The insertion part has an outer peripheral surface. The conductive portion is disposed at the insertion portion and protrudes relative to the outer peripheral surface, and at least one of these conductive members can be correspondingly conducted to the conductive portion connected to the first connector.

Another embodiment of the present invention provides an electronic device product. The electronic device product includes a power adapter and an electronic device. The power adapter includes a transformer module and a first connector. The first connector is electrically connected to the transformation module and includes an insertion portion and a conductive portion. The insertion part has an outer peripheral surface. The conductive part is arranged at the insertion part and protrudes with respect to the outer peripheral surface. The electronic device includes a second connector and a controller. The second connector includes a plurality of conductive elements, a detection node, a plurality of first resistors, a reference node and a second resistor. These conductive elements are arranged in isolation from each other. The first resistors are electrically connected to the conductive elements, and the first resistors are coupled to the detection node. The second resistor is coupled to the detection node and the reference node. The controller is electrically connected to the second connector and used for detecting a detection voltage value of the detection node. Where this At least one of the conductive parts can be correspondingly connected to the conductive part connected to the first connector, and the controller of the second connector is used to determine the specifications of the power adapter according to the detected voltage value.

In order to have a better understanding of the above and other aspects of the present invention, the following specific examples are given in conjunction with the accompanying drawings to describe in detail as follows:

10: Electronic device

11: Controller

20: power adapter

21: Transformer module

30: External power supply

100: second connector

105: body

111~118: conductive parts

121~128: first resistor

130: Detect node

140: Reference node

150: second resistor

170: Isolation Department

200: first connector

220: Insertion part

220s: outer peripheral surface

211~218: conductive part

V1: Detect voltage value

V2: Reference voltage

R1: equivalent resistance value

R2: resistance value

n: number

FIG. 1 is a schematic diagram of an electronic device product according to an embodiment of the invention.

Fig. 2 shows a schematic diagram of the second connector and the first connector of Fig. 1.

FIG. 3 is a schematic circuit diagram of the second connector of FIG. 2. FIG.

Fig. 4 is a schematic diagram of the circuit when the first connector of Fig. 2 is inserted into the second connector.

FIG. 5 is a flowchart of a method for determining the specifications of a power adapter according to an embodiment of the present invention.

Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of an electronic device product 1 according to an embodiment of the present invention, and Figure 2 is a schematic diagram of the second connector 100 and the first connector 200 of Figure 1 .

The electronic device product 1 includes an electronic device 10 and a power adapter 20. The electronic device 10 is, for example, a notebook computer, but it can also be a communication device (such as a handheld communication device), a household appliance, or other electronic devices that need to be powered by a power adapter. The power adapter 20 is, for example, a transformer. The electronic device 10 includes a second connector 100 and a controller 11. The controller 11 It is electrically connected to the second connector 100. The controller 11 is, for example, a Microcontroller Unit (MCU). The power adapter 20 includes a first connector 200 and a transformer module 21, and the first connector 200 is electrically connected to the transformer module 21. By inserting the first connector 200 into the second connector 100, the power adapter 20 can supply power to the electronic device 10 through the first connector 200 and the second connector 100. Although not shown, the transformer module 21 may include, for example, an iron core, a primary winding, and a secondary winding. The primary winding and the secondary winding are wound around the iron core. The primary winding can be electrically connected to the external power source 30, The winding can be electrically connected to a load, such as the electronic device 10. The transformer module 21 can change the voltage of the current (not shown) provided by the external power source 30.

In this embodiment, the first connector 200 is, for example, a male connector, and the second connector 100 is, for example, a female connector.

Please refer to Figures 2 to 4, Figure 3 shows a schematic circuit diagram of the second connector 100 in Figure 2, and Figure 4 shows the first connector 200 in Figure 2 when inserted into the second connector 100 Schematic diagram of the circuit. The second connector 100 includes a plurality of conductive elements 111-118, a plurality of first resistors 121-128, a detection node 130, a reference node 140, and a second resistor 150.

These conductive members 111-118 are arranged in isolation from each other. The first resistors 121 to 128 are respectively electrically connected to the conductive members 111 to 118, that is, each of the first resistors 121 to 128 is electrically connected to one of the conductive members 111 to 118. The first resistors 121 to 128 are coupled to the detection node 130. The second resistor 150 is coupled to the detection node 130 and the reference node 140. The detection voltage value V1 of the detection node 130 can be used to determine the specification of a power adapter 20. For example, when the first connector 200 is electrically connected to the second connector 100, the controller 11 The detection voltage value V1 of the detection node 130 can be detected, and the specifications of the power adapter 20 can be determined according to the detection voltage value V1 of the detection node 130. The controller 11 can set the parameters of the electronic device 10 according to the judgment result to obtain better or best working performance. As long as the setting can be adapted to the specifications of the power adapter 20, the embodiment of the present invention does not limit the setting method.

In detail, conventional electronic devices cannot detect the rated capacity (eg, wattage) of the power adapter. If the rated capacity of the power adapter inserted into the electronic device is too small, it may cause the power adapter to overheat; if the rated capacity of the power adapter inserted into the electronic device is too large, the performance of the power adapter cannot be exerted. Since the electronic device 10 of the embodiment of the present invention can automatically determine the specifications of the power adapter 20, it can automatically adopt or switch the working mode that matches the specifications of the power adapter 20 according to the determination result, so that the power adapter will not overheat and effectively exert the power adapter performance .

As shown in FIG. 3, the second connector 100 further includes a plurality of isolation portions 170. Any adjacent two of the conductive members 111-118 are separated by the corresponding isolation portion 170, so that the conductive members 111-118 are electrically connected to each other. isolation. In one embodiment, the isolation portion 170 is, for example, an insulating sheet or an insulating block, which separates two adjacent conductive elements to electrically isolate the two adjacent conductive elements.

As shown in FIGS. 2 and 4, the first connector 200 includes at least one conductive portion and an insertion portion 220, wherein the at least one conductive portion is, for example, conductive portions 211-218. The insertion portion 220 has an outer peripheral surface 220s, and the conductive portions 211-218 are disposed on the insertion portion 220 and protrude relative to the outer peripheral surface 220s. The conductive parts 211~218 are electrically connected to a ground potential. For example, the insertion part 220 is electrically connected to the ground point of the power adapter 20, so that the conductive parts 211~218 connected to the insertion part 220 can be electrically connected through the insertion part 220. Sexually connected to ground potential.

As shown in Figure 4, the conductive elements 111~118 of the second connector 100 It is arranged annularly and surrounds a space. The insertion portion 220 of the first connector 200 can be inserted into the space surrounded by the plurality of conductive elements 111 to 118 of the second connector 100, so that at least one of the conductive elements 111 to 118 can be connected to the first connector. Conductive parts 211-218 of a connector 200. In this embodiment, the number of conductive parts 211 to 218 of the first connector 200 is equal to the number of conductive elements 111 to 118 of the second connector 100. Therefore, when the first connector 200 and the second connector 100 have the same number When combined, the plurality of conductive parts 211 to 218 and the plurality of conductive members 111 to 118 are in electrical contact correspondingly (one-to-one).

As shown in FIG. 4, when the first connector 200 is inserted into the second connector 100, the external power source 30 is electrically connected to the reference node 140 and the controller 11. The external power supply 30 provides the reference node 140 with a reference voltage V2, such as 3.3 Volt (Volt), but the embodiment of the present invention is not limited thereto. The second resistor 150 is electrically coupled to the reference node 140 and the detection node 130, and the detection voltage value V1 of the reference node 140 is a divided voltage of the reference voltage V2. In one embodiment, the second resistor 150 is, for example, 210KΩ, but the embodiment of the present invention is not limited thereto.

Since the conductive portions 211 to 218 of the first connector 200 are grounded, when the first connector 200 is inserted into the second connector 100, the detection node 130 forms a circuit loop with the electrical connection position, and the detection node 130 generates detection. Measure the voltage value V1. The detection voltage value V1 depends on the number of conductive parts that are in electrical contact with the conductive elements 111~118. In other words, the number of conductive parts that are in electrical contact with the conductive elements 111~118 is different, and the detection voltage value V1 also follows. different. Power adapters 20 with different specifications can be connected to the first connectors 200 with different numbers of conductive parts. Therefore, the specifications of the corresponding power adapter 20 can be determined based on the different detected voltage values V1 detected.

The number of conductive parts of the first connector 200 is equal to or less than that of the second connection The number of conductive parts of the device 100. In this embodiment, the number of these conductive elements of the second connector 100 is illustrated by taking 8 as an example, and the number of conductive parts of the first connector 200 is equal to the number of these conductive elements of the second connector 100 Take an example. However, in another embodiment, the number of conductive elements of the second connector 100 may also be less than 8, for example, 1, 2, 3, 4, 5, 6, or 7, or There are more than eight, and the number of conductive parts of the first connector 200 may be less than the number of conductive parts of the second connector 100.

In this embodiment, as shown in Figure 4, when the first connector 200 is inserted into the second connector 100, the conductive parts of the first connector 200 electrically contact the corresponding conductive parts of the second connector 100. For example, the conductive part 211 is in electrical contact with the conductive part 111, the conductive part 212 is in electrical contact with the conductive part 112, the conductive part 213 is in electrical contact with the conductive part 113, the conductive part 214 is in electrical contact with the conductive part 114, and the conductive part 215 is in electrical contact. The conductive member 115, the conductive portion 216 electrically contacts the conductive member 116, the conductive portion 217 electrically contacts the conductive member 117, and the conductive portion 218 electrically contacts the conductive member 118.

Please refer to the following table 1, which lists the relationship between different numbers of conductive parts and the corresponding different detection voltage values V1 and power adapters A~H of different specifications. The power adapters A~H have different specifications, such as Rated capacity, rated voltage or other parameters, these data can be stored in the controller 11.

In addition, the detected voltage values V1 corresponding to different numbers of conductive parts can be calculated according to the following formula (1). In formula (1), R1 represents the equivalent resistance value of all the first resistors 121~128, R2 represents the resistance value of the second resistor 150, and n represents the number of conductive parts of the first connector 200, which is equal to 1 or greater than A positive integer of 1, and V2 represents the reference voltage. It can be seen from Table 1 that different numbers of conductive parts (that is, different values of n) correspond to different values of the detected voltage value V1.

In addition, the equivalent resistance value R1 of the embodiment of the present invention is illustrated by taking 840KΩ as an example, but the embodiment of the present invention is not limited thereto. In one embodiment, each of the first resistors 121 to 128 may have the same resistance value, but at least two of the first resistors 121 to 128 may be different.

In addition, the second resistor 150 in the embodiment of the present invention is illustrated by taking one as an example. However, in another embodiment, the number of the second resistors 150 can be multiple, at least two of the second resistors 150 can be connected in series or in parallel, and the resistance values of the two second resistors 150 can be the same or Different. When there are multiple second resistors 150, the resistance value R2 is the equivalent resistance value of these second resistors 150.

In this embodiment, as shown in FIGS. 2 and 3, the second connector 100 further includes a body 105, and the conductive members 111 to 118 can be fixedly disposed on the body 105, but the embodiment of the present invention is not limited thereto. In another embodiment, at least one of the conductive members 111 to 118 is movably disposed on the main body 105. For example, the conductive members 111-118 have elasticity. In this way, when the first connector 200 is inserted into the second connector 100, the conductive members 111 to 118 of the second connector 100 can provide elastic force to press against the conductive parts 211 to 218 of the first connector 200 to make the conductive parts 211 to 218 conductive. The contact force between the members 111 to 118 and the conductive portions 211 to 218 is increased, and abuts against each other more stably.

In this embodiment, as shown in FIGS. 2 and 3, the conductive portions 211 to 218 of the first connector 200 are fixedly disposed on the insertion portion 220, but the embodiment of the present invention is not limited thereto. In another embodiment, at least one of the conductive portions 211 to 218 is movably disposed in the insertion portion 220. For example, the conductive parts 211 to 218 have elasticity. In this way, when the first connector 200 is inserted into the second connector 100, the conductive parts 211~218 of the first connector 200 can provide elastic force to press against the conductive parts 111~118 of the second connector 100, so that the conductive parts 111~118 of the second connector 100 are electrically conductive. The contact force between the members 111 to 118 and the conductive portions 211 to 218 is increased, and abuts against each other more stably.

Please refer to FIG. 5, which shows a flowchart of a method for determining the specifications of a power adapter according to an embodiment of the present invention.

In step S110, based on the connection between the aforementioned second connector 100 and the first connector 200, the controller 11 detects the detection voltage value V1 of the detection node 130.

In step S120, the controller 11 determines the specifications of the power adapter 20 according to the detected voltage value V1. For example, when the detected voltage value V1 is 1.1V, according to Table 1, the controller 11 determines that the power adapter 20 connected to the second connector 100 is a suitable power source. Orchestrator H.

Then, the controller 11 can set the parameters of the electronic device 10 according to the determined result to obtain better or best working performance.

In summary, although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention belongs can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.

11: Controller

30: External power supply

111~118: conductive parts

121~128: first resistor

130: Detect node

140: Reference node

150: second resistor

211~218: conductive part

Claims (10)

An electronic device adapted to be connected to a first connector of a power adapter, the first connector including a conductive part, the electronic device including: a second connector, including: a plurality of conductive elements, arranged in isolation from each other, At least one of the conductive elements can be correspondingly connected to the conductive portion connected to the first connector; a detection node; a plurality of first resistors, each of the first resistors is electrically connected to the conductive elements, And the first resistors are coupled to the detection node and have an equivalent resistance value; a reference node; and a second resistor, coupled to the detection node and the reference node; and a controller, electrically connected A detection voltage value at the second connector for detecting the detection node, so that when the first connector is connected to the second connector, the specification of the power adapter is determined according to the detection voltage value; Wherein, the detection voltage value is calculated by the number of the conductive elements, the equivalent resistance value and the second resistance. The electronic device according to claim 1, wherein each of the first resistors has the same resistance value. The electronic device according to claim 1, wherein the first connector is a male connector, and the second connector is a female connector. A power adapter is suitable for connecting with a second connector of an electronic device, the second connector includes a plurality of conductive parts; the power adapter includes: A transformer module; and a first connector electrically connected to the transformer module. The first connector includes: an insertion portion having an outer peripheral surface; and a conductive portion disposed on the insertion portion And it protrudes relative to the outer peripheral surface, and at least one of the conductive members can be connected to the conductive portion of the first connector, and the conductive portion is electrically connected to a ground potential. The power adapter according to claim 4, wherein the number of the conductive parts of the first connector is equal to or less than the number of the conductive parts of the second connector. The power adapter according to claim 4, wherein the first connector is a male connector and the second connector is a female connector. An electronic device product includes: a power adapter, including: a transformer module; and a first connector, which is electrically connected to the transformer module, and includes: an insertion portion with an outer peripheral surface; and a conductive Part, which is disposed on the insertion part and protrudes relative to the outer peripheral surface, and the conductive part is electrically connected to a ground potential; and an electronic device, including: a second connector, including: a plurality of conductive parts, isolated from each other Ground configuration; a detection node; A plurality of first resistors, each of the first resistors is electrically connected to the conductive elements, and the first resistors are coupled to the detection node and have an equivalent resistance value; a reference node; and a second resistor , Coupled to the detection node and the reference node; and a controller, electrically connected to the second connector and used for detecting a detection voltage value of the detection node; wherein at least one of the conductive elements One can correspond to the conductive part connected to the first connector, and the controller of the second connector is used to determine the specifications of the power adapter according to the detected voltage value; wherein, the detected voltage value It is calculated by the number of the conductive elements, the equivalent resistance value and the second resistance. The electronic device product according to claim 7, wherein the number of the conductive parts of the first connector is equal to or less than the number of the conductive parts of the second connector. The electronic device product according to claim 7, wherein each of the first resistors has the same resistance value. The electronic device product according to claim 7, wherein the first connector is a male connector, and the second connector is a female connector.

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