TWI741850B - Power conversion system - Google Patents

Abstract

The invention relates to a power conversion system, which is connected to a power supply and computer equipment. The power conversion system includes a first connection port, an input circuit, a rectifier circuit, an output circuit, a control circuit, and a second connection port. The first port is connected to the power supply to receive the standby voltage input signal, the input circuit is connected to the first port and the rectifier circuit, the output circuit is connected to the rectifier circuit and the second port, and the control circuit is connected to the The first connection port, the input circuit, and the second connection port output a standby voltage conversion signal to the computer equipment. In use, the standby voltage input signal of the power supply of the power conversion system is converted into the standby voltage conversion signal required by the computer equipment, so that the user does not need to replace the power supply. This improves the convenience of use and reduces the cost of use.

Description

Power conversion system

The present invention relates to a conversion system, especially a power conversion system.

With the rapid development of computer equipment, it is convenient for people to deal with related affairs through computer equipment, such as handling work, studies, academic research, etc. There are many electronic components in the computer equipment, such as motherboard, processor, memory, hard disk, network card, display card, etc. In order to supply power to these electronic components for the operation of the computer equipment, it is necessary to install a power supply.

Currently, computer equipment uses an AX12V power supply, which provides multiple sets of voltages, such as +3.3V, +5V, +5Vsb, +12V, and -12V. However, with the increasing advancement of electronic components in computer equipment, a power supply that provides multiple sets of voltages is no longer in line with the design trend, and it also affects the voltage conversion efficiency.

In addition, Intel issued a new ATX12VO design guide in 2019 as a guideline for the power supply to output a single voltage, so as to unify the output voltage and improve the inconvenience of traditional multiple sets of voltages. Moreover, in order to comply with the ATX12VO design guidelines, many electronic components are also designed to be modified with ATX12VO to improve the voltage conversion efficiency. For ATX12VO, the power supply is required to output only +12V voltage, and the output +12V voltage is divided into +12V and +12Vsb, where +12Vsb is used as the standby voltage provided to the computer equipment, as long as the power supply is connected When the utility power is turned on and the switch is turned on, a standby voltage of +12Vsb will always be provided to provide the starting voltage required for the computer equipment to start.

Most power supplies currently on the market, or power supplies in computer equipment currently in use, are still old power supplies that provide multiple sets of voltages, and the standby voltage provided is only +5Vsb. It is not enough to use. And the power supply compliant with ATX12VO has not yet appeared on the market. In this regard, users are troubled in use. Therefore, how to improve the convenience of users and reduce the trouble of use while adapting to the old power supply is indeed a necessity to propose a better solution.

In view of the above-mentioned problems in the prior art, at least one object of the present invention is to provide a power conversion system connected between the old power supply and computer equipment. Through the power conversion system, the old +5Vsb voltage is converted into the required +12Vsb voltage, so that the user can continue to use the old power supply without replacing it, and can reduce the user's cost. This improves the convenience of use and reduces the cost of use.

At least one technical means adopted to achieve the above-mentioned objective is to enable the aforementioned power conversion system to connect to a power supply and computer equipment. The power conversion system includes: a first connection port connected to the power supply to receive standby voltage Input signal; an input circuit connected to the first connection port; a rectifier circuit connected to the input circuit; a control circuit connected to the first connection port, the input circuit, and between the rectifier circuit and the output circuit; the output circuit, The rectifier circuit is connected to output the standby voltage conversion signal; the second connection port is connected to the output circuit to transmit the standby voltage conversion signal to the computer equipment.

In one embodiment, it further includes a voltage sampling circuit connected between the rectifier circuit and the output circuit and connected to the control circuit.

In one embodiment, it further includes an auxiliary circuit connected to the first connection port and connected between the rectifier circuit, the output circuit, the control circuit, and the voltage sampling circuit.

In one embodiment, the input circuit includes a first capacitor including a first terminal and a second terminal, the first terminal of the first capacitor is connected to the first port, and the second terminal of the first capacitor is connected to the first terminal. A connection port and ground; a second capacitor, including a first end and a second end, the first end of the second capacitor is connected to the first end of the first capacitor and the first port, the second capacitor Terminal is connected to the second terminal of the first capacitor and the first connection port and ground; the first inductor includes a first terminal and a second terminal, and the first terminal of the first inductor is connected to the first connection port and the first terminal The first end of the capacitor and the first end of the second capacitor, and the second end of the first inductor is connected to the rectifier circuit and the control circuit.

In one embodiment, the rectifier circuit includes: a first diode including a first end and a second end, the first end of the first diode is connected to the second end of the first inductor and the control circuit, The second end of the first diode is connected to the output circuit, the control circuit, and the voltage sampling circuit; the first resistor includes a first end and a second end, and the first end of the first resistor is connected to the first inductor The second end of the third capacitor and the control circuit; the third capacitor includes a first end and a second end, the first end of the third capacitor is connected to the second end of the first resistor, and the second end of the third capacitor is connected to the The second end of the first diode, the control circuit, the output circuit, the voltage sampling circuit and the auxiliary circuit.

In an embodiment, the output circuit includes: a fourth capacitor including a first terminal and a second terminal, and the first terminal of the fourth capacitor is connected to the second terminal of the first diode and the second terminal of the third capacitor. Two terminals, the auxiliary circuit, the control circuit, and the voltage sampling circuit; the second inductor includes a first terminal and a second terminal, the first terminal of the second inductor is connected to the first terminal of the fourth capacitor, the first terminal The second end of the diode, the second end of the third capacitor, the auxiliary circuit, the control circuit, the voltage sampling circuit, the second end of the second inductor is connected to the second port; the fifth capacitor includes The first end and the second end, the first end of the fifth capacitor is connected to the second end of the second inductor and the second port, and the second end of the fifth capacitor is connected to the second port and ground.

In an embodiment, the control circuit includes a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, and a tenth resistor. A capacitor and a controller; the controller includes a plurality of connection terminals, the first connection terminal and the second connection terminal of the controller are connected, and are connected to the first terminal of the second resistor, the second terminal of the first inductor, the The first end of the first diode is connected to the first end of the first resistor, the first end of the sixth capacitor is connected to the second end of the second resistor, and the second end of the sixth capacitor is grounded; the control The third terminal of the controller is connected to the first terminal of the seventh capacitor, and the second terminal of the seventh capacitor is grounded; the fourth terminal of the controller is connected to the first terminal of the third resistor, and the second terminal of the third resistor is connected to the Two ends are connected to the first connection port; the fifth connection end of the controller is connected to the voltage sampling circuit; the sixth connection end of the controller is connected to the first end of the fourth resistor and the first end of the eighth capacitor, The first end of the ninth capacitor is connected to the second end of the fourth resistor, the second end of the ninth capacitor is connected to the second end of the eighth capacitor and ground; the seventh connection end of the controller is connected to the fifth The first end of the resistor, the first end of the tenth capacitor is connected to the second end of the fifth resistor, and the second end of the tenth capacitor is connected to the first end of the sixth resistor and the eighth connection end of the controller , The second end of the sixth resistor is connected to the first end of the second inductor, the first end of the fourth capacitor, the second end of the first diode, the second end of the third capacitor, the auxiliary The circuit and the voltage sampling circuit.

In one embodiment, the voltage sampling circuit includes a seventh resistor including a first terminal and a second terminal, and the first terminal of the seventh resistor is connected to the first terminal of the fourth capacitor and the first terminal of the first diode. The second terminal, the second terminal of the third capacitor, the auxiliary circuit, the second terminal of the sixth resistor, and the first terminal of the second inductor; the eighth resistor includes the first terminal and the second terminal, the first terminal The first end of the eight resistor is connected to the second end of the seventh resistor and the fifth connection end of the controller, and the second end of the eighth resistor is grounded; and the auxiliary circuit includes a second diode, the second end The pole body includes a first end and a second end. The first end of the second diode is connected to the first connection port, and the second end of the second diode is connected to the first end of the fourth capacitor and the first end. The second end of a diode, the second end of the third capacitor, the second end of the sixth resistor, the first end of the seventh resistor, and the first end of the second inductor.

In one embodiment, it further includes a cover and a hard circuit board; the first connection port, the input circuit, the rectifier circuit, the output circuit, the second connection port, the control circuit, the The voltage sampling circuit and the auxiliary circuit are arranged on the hard circuit board, the outer cover covers the hard circuit board, and the first connection port and the second connection port expose the outer cover.

In one embodiment, it further includes an outer cover and a flexible circuit board, the outer cover covers the flexible circuit board, the input circuit, the rectifier circuit, the output circuit, the control circuit, the voltage sampling circuit and the auxiliary circuit are arranged on the A flexible circuit board; the first connection port is arranged on one side of the cover, and is electrically connected to the input circuit, the control circuit and the auxiliary circuit on the flexible circuit board; the second connection port is arranged on the On the opposite side of the outer cover, it is electrically connected to the output circuit.

According to the above content, after the standby voltage input signal (+5Vsb) provided by the power supply is boosted by the power conversion system, the standby voltage conversion signal (+12Vsb) is output to the computer device.

In use, the user only needs to install the power conversion system on the old power supply and connect the power conversion system to the computer equipment to obtain the +12Vsb standby voltage conversion signal for easy use. Moreover, the user does not need to replace the power supply, which can also reduce the cost. This improves the convenience of use and reduces the cost of use.

10: Power conversion system

101: outer cover

102: hard circuit board

101A: Cover

102A: Flexible circuit board

11: The first port

111: The first buckle part

12: Input circuit

13: Rectifier circuit

14: output circuit

15: second port

151: second snap part

16: control circuit

161: Controller

17: Voltage sampling circuit

18: auxiliary circuit

20: power supply

30: computer equipment

a1~a24: pin

b1~b10: pin

C1: The first capacitor

C2: second capacitor

C3: third capacitor

C4: The fourth capacitor

C5: Fifth capacitor

C6: sixth capacitor

C7: seventh capacitor

C8: The eighth capacitor

C9: Ninth capacitor

C10: Tenth capacitor

D1: The first diode

D2: The second diode

L1: first inductance

L2: second inductance

R1: first resistance

R2: second resistor

R3: third resistor

R4: Fourth resistor

R5: Fifth resistor

R6: sixth resistor

R7: seventh resistor

R8: Eighth resistor

FIG. 1 is a block diagram of the architecture of a power conversion system according to an embodiment of the present invention.

FIG. 2 is a block diagram of another architecture based on the power conversion system shown in FIG. 1 according to the present invention.

3A is a schematic diagram of the first connection port of the power conversion system shown in FIG. 2 based on the present invention.

3B is a schematic diagram of the present invention based on the second connection port of the power conversion system shown in FIG. 2.

FIG. 4 is a schematic circuit diagram based on the power conversion system shown in FIG. 2.

FIG. 5A is a schematic diagram of a power conversion system according to an embodiment of the invention.

FIG. 5B is another schematic diagram of the power conversion system according to an embodiment of the present invention.

FIG. 5C is another schematic diagram of the power conversion system according to an embodiment of the present invention.

Regarding an embodiment of the present invention, please refer to FIGS. 1 and 2 to disclose the power conversion system 10. The power conversion system 10 is connected to a power supply 20 and a computer device 30 respectively. Wherein, the computer device 30 can be a desktop computer or a notebook computer.

In one embodiment, the power conversion system 10 includes a first connection port 11, an input circuit 12, a rectification circuit 13, an output circuit 14, a second connection port 15, and a control circuit 16.

The first connection port 11 is connected to the power supply 20 to receive the standby voltage input signal (+5Vsb) provided by the power supply 20. The input circuit 12 is connected to the first connection port 11. The rectifier circuit 13 is connected to the input circuit 12 and the output circuit 14 respectively. The second connection port 15 is connected to the output circuit 14 and the computer equipment 30 respectively. The control circuit 16 is connected between the first connection port 11, the input circuit 12, and the rectifier circuit 13 and the output circuit 14.

Further, the power conversion system 10 further includes a voltage sampling circuit 17. The voltage sampling circuit 17 is connected between the output circuit 14 and the rectifier circuit 13 and connected to the control circuit 16.

Further, the power conversion system 10 further includes an auxiliary circuit 18. The auxiliary circuit 18 is connected to the first connection port 11 and connected between the rectifier circuit 13, the output circuit 14, the control circuit 16 and the voltage sampling circuit 17.

The first connecting port 11 may be a 24-pin connecting port or a 10-pin plus 14-pin connecting port, etc., and the first connecting port 11 may be a male connecting port or a female connecting port. The pin combination of the first connection port 11 can be designed and adjusted according to actual requirements.

The second connection port 15 can be a 10-pin connection port, and the second connection port 15 can be a male connection port or a female connection port. Wherein, the pin of the second connection port 15 can be designed and adjusted according to actual requirements, and is not limited by the aforementioned 10-pin connection port.

Please refer to FIGS. 2 and 3A, which are schematic diagrams of the pins of the first connection port 11, and use the standard 24 pin as an example. The first connection port 11 includes pins a1 to a24 and a first buckle portion 111. The first buckle portion 111 is used to buckle with a connected cable (not shown in the figure) or buckle with the above-mentioned power supply 20 to enhance the bonding effect. The following will describe the connection function corresponding to each pin of the first connection port 11 of the 24 pin connection port. The pins a1, a2, a12, and a13 are +3.3V pins connected to the power supply 20. The pins a3, a5, a7, a15, a17, a18, a19, and a24 are the pins connected to the ground of the power supply 20. The pins a4, a6, a21, a22, and a23 are the +5V pins connected to the power supply 20. The pin a8 is connected to the PG (Power Preparation Pin) pin of the power supply 20. Pin a9 is the +5Vsb pin of the power supply 20 connected to it. Pins a10 and a11 are the +12V pins connected to the power supply 20. The pin a14 is the -12V pin connected to the power supply 20. The pin a16 is connected to the PS-ON (boot pin) pin of the power supply 20. Pin a20 is the -5V pin connected to the power supply 20. The pin connection function exemplified above is a standard pin connection function defined by the standard. In addition, the connection functions of the pins exemplified above are also illustrative and not limited thereto, and other designs and adjustments can also be made according to actual needs.

In addition, for the first connection port 11 composed of 10 pins and 14 pins, the connection function of each pin can be freely designed and connected according to different needs, and the power conversion system 10 can control the received signal For conversion, for the connection function of each pin, you can refer to the above-mentioned 24 pin pin, or you can design and connect at will according to different needs, so I won't repeat it here.

Please refer to Figures 2 and 3B, which are schematic diagrams of the pins of the second connection port 15, and use the standard 10 pin as an example. The second connection port 15 includes pins b1 to b10 and a second buckle portion 151. The second buckle portion 151 is used to buckle with a connected cable (not shown in the figure), or buckle with the connected computer device 30 to enhance the bonding effect. The following will describe the connection function corresponding to each pin of the second port 15 of the 10-pin port. For pin b1, it is connected to the computer device 30 PS-ON (boot pin) pin. The pins b2, b3, and b4 are the pins connected to the ground of the computer device 30. Pin b5 is a No connection (NC) pin. Pin b6 is the PWR-OK (digital signal pin for stable power supply) connected to the computer device 30. Pin b7 is the +12Vsb pin of the computer device 30 connected to it. Pins b8 and b9 are the +12V pins connected to the computer device 30. Pin b10 is the +12V pin connected to the computer device 30. The pin connection function exemplified above is a standard pin connection function defined by the standard. In addition, the connection functions of the pins exemplified above are also illustrative and not limited thereto, and other designs and adjustments can also be made according to actual needs.

For the specific circuit diagram of the power conversion system 10, please refer to FIGS. 2 and 4. The input circuit 12 includes a first capacitor C1, a second capacitor C2, and a first inductor L1.

The first end of the first capacitor C1 is connected to the first connection port 11, and the second end of the first capacitor C1 is connected to the first connection port 11 and ground.

The first terminal of the second capacitor C2 is connected to the first terminal of the first capacitor C1 and the first connection port 11, and the second terminal of the second capacitor C2 is connected to the second terminal of the first capacitor C1, the first terminal Connect port 11 and ground.

The first end of the first inductor L1 is connected to the first end of the first capacitor C1, the first end of the second capacitor C2, and the first connection port 11, and the second end of the first inductor L1 is connected to the rectifier circuit 13.

The rectifier circuit 13 includes a first diode D1, a first resistor R1, and a third capacitor C3.

The first end (P) of the first diode D1 is connected to the second end of the first inductor L1 and the control circuit 16, and the second end (N) of the first diode D1 is connected to the output circuit 14, The control circuit 16 and the voltage sampling circuit 17.

The first end of the first resistor R1 is connected to the first end (P) of the first diode D1, the second end of the first inductor L1, and the control circuit 16.

The first end of the third capacitor C3 is connected to the second end of the first resistor R1, and the second end of the third capacitor C3 is connected to the second end (N) of the first diode D1, the output circuit 14, The voltage sampling circuit 17 and the auxiliary circuit 18.

Wherein, the output circuit 14 includes a fourth capacitor C4, a fifth capacitor C5 and a second inductor L2.

The first end of the fourth capacitor C4 is connected to the second end of the third capacitor C3, the second end (N) of the first diode D1, the control circuit 16 and the voltage sampling circuit 17, the fourth capacitor The second end of C4 is grounded.

The first end of the second inductor L2 is connected to the first end of the fourth capacitor C4, the second end of the third capacitor C3, the second end (N) of the first diode D1, the control circuit 16 and In the voltage sampling circuit 17, the second end of the second inductor L2 is connected to the second connection port 15.

The first end of the fifth capacitor C5 is connected to the second end of the second inductor L2 and the second port 15, and the second end of the fifth capacitor C5 is connected to the second port 15 and ground.

The control circuit 16 includes a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, and a ninth capacitor. C9, the tenth capacitor C10, and the controller 161. The model of the controller 161 includes but is not limited to FP6296XR-G1.

The controller 161 includes a plurality of connection terminals. The first connection terminal 1 and the second connection terminal 2 of the controller 161 are connected to the first terminal of the second resistor R2, the second terminal of the first inductor L1, and the The first end (P) of the first diode D1 is connected to the first end of the first resistor R1. The first end of the sixth capacitor C6 is connected to the second end of the second resistor R2, and the second end of the sixth capacitor C6 is grounded.

The third connection terminal 3 of the controller 161 is connected to the first terminal of the seventh capacitor C7, and the second terminal of the seventh capacitor C7 is grounded.

The fourth connection terminal 4 of the controller 161 is connected to the first terminal of the third resistor R3, and the second terminal of the third resistor R3 is connected to the first connection port 11.

The fifth connection terminal 5 of the controller 161 is connected to the voltage sampling circuit 17.

The sixth connection terminal 6 of the controller 161 is connected to the first terminal of the fourth resistor R4 and the first terminal of the eighth capacitor C8, and the first terminal of the ninth capacitor C9 is connected to the second terminal of the fourth resistor R4 , The second end of the eighth capacitor C8 is grounded.

The seventh connection terminal 7 of the controller 161 is connected to the first terminal of the fifth resistor R5, the second terminal of the fifth resistor R5 is connected to the first terminal of the tenth capacitor C10, and the second terminal of the tenth capacitor C10 The first end of the sixth resistor R6 is connected to the eighth connection end 8 of the controller 161, and the second end of the sixth resistor R6 is connected to the second end (N) of the first diode D1, the third The second terminal of the capacitor C3, the first terminal of the fourth capacitor C4, the first terminal of the second inductor L2, the voltage sampling circuit 17 and the auxiliary circuit 18.

The ninth connection terminal 9 of the controller 161 is grounded.

The voltage sampling circuit 17 includes a seventh resistor R7 and an eighth resistor R8. The first end of the seventh resistor R7 is connected to the second end of the sixth resistor R6, the second end (N) of the first diode D1, the second end of the third capacitor C3, and the fourth capacitor C4 The first end of the second inductor L2 and the auxiliary circuit 18. The second end of the seventh resistor R7 is connected to the fifth connection end 5 of the controller 161 and the first end of the eighth resistor R8, and the second end of the eighth resistor R8 is grounded.

The auxiliary circuit 18 includes a second diode D2. The first end (P) of the second diode D2 is connected to the first connection port 11, and the second end (N) of the second diode D2 is connected to the first end of the seventh resistor R7, the sixth The second end of the resistor R6, the second end (N) of the first diode D1, the second end of the third capacitor C3, the first end of the fourth capacitor C4, and the first end of the second inductor L2 end.

In application, the controller 161 receives the standby voltage input signal (+5Vsb) provided by the power supply 20 through the first connection port 11 and the third resistor R3, and then activates, and through the switch control method, through the The first connection terminal 1 and the second connection terminal 2 output control to control the power conversion System 10 operates. The input circuit 12 receives the standby voltage input signal (+5Vsb) and is charged by the first capacitor C1 and the second capacitor C2 to reduce noise and filter to stabilize the standby voltage input signal (+5Vsb). Then the first inductor L1 performs energy storage.

The rectifier circuit 13 performs voltage rectification on the stored energy of the first inductor L1 to output the standby voltage conversion signal (+12Vsb). The output circuit 14 receives the standby voltage conversion signal (+12Vsb), which is stored by the fourth capacitor C4, the fifth capacitor C5, and the second inductor L2 to filter to stabilize the circuit operation, and output to the second connection Port 15 for the computer device 30 to receive.

In order to ensure the stable supply of the standby voltage conversion signal (+12Vsb), the control circuit 16 obtains a feedback voltage according to the voltage flowing into the output circuit 14 through the voltage sampling circuit 17, and processes it to generate a voltage control signal , And adjust the duty cycle of the controller 161 for switching control, so as to stabilize the output standby voltage conversion signal (+12Vsb).

In addition, in order to ensure the stability of the current, the control circuit 16 also obtains a current sampling signal through the fifth resistor R5, the tenth capacitor C10, and the sixth resistor R6, and processes them to generate a current control signal to The current output by the rectifier circuit 13 is limited, thereby ensuring circuit safety.

Further, in order to ensure that the standby voltage conversion signal (+12Vsb) is stable and sufficient, the standby voltage input signal (+12V) is received through the auxiliary circuit 18 and rectified to provide an auxiliary voltage.

Further, regarding a specific structure of the power conversion system 10, please refer to FIG. 5A. The power conversion system 10 may constitute a riser card structure. The power conversion system 10 includes an outer cover 101 and a hard circuit board 102. The first connection port 11, the input circuit 12, the rectifier circuit 13, the output circuit 14, the second connection port 15, the control circuit 16, the voltage sampling circuit 17, and the auxiliary circuit 18 are arranged on the hard circuit board 102 on. The outer cover 101 is a hard shell to cover and protect the hard circuit board 102 and protect the aforementioned circuits. The first connection port 11 and the second connection port 15 respectively expose the cover 101 for connecting the power supply 20 and the computer equipment 30.

Among them, in the structure shown in FIG. 5A, in order to make the power conversion system 10 constituting the riser card structure easy to use directly, to achieve high compatibility, the first connection port 11 can use the 24 pin example mentioned above. The first connection port 11 is a female connection port. The second connection port 15 can adopt the above-mentioned 10-pin connection port, and the second connection port 15 is a female connection port. The first connection port 11 of the power conversion system 10 is connected to the power supply 20 through a flat cable (not shown in the figure). The second connection port 15 is connected to the aforementioned computer device 30 through another cable (not shown in the figure).

Further, for another specific structure of the power conversion system 10, please refer to FIG. 5B. The power conversion system 10 shown in FIG. 5B is substantially the same as the content shown in FIG. 5A. However, the second port 15 in FIG. 5B is a male port, so it can be directly connected to the computer device 30 through the second port 15 without the need to connect to the power conversion system 10 through a cable. And the computer equipment 30.

Further, for another specific structural diagram of the power conversion system 10, please refer to FIG. 5C. The power conversion system 10 can be composed of a cable structure, and includes an outer cover 101A and a flexible circuit board 102A. The input circuit 12, the rectifier circuit 13, the output circuit 14, the control circuit 16, the voltage sampling circuit 17, and the auxiliary circuit 18 are arranged on the flexible circuit board 102A. The first connection port 11 is arranged on one side of the outer cover 101A, and is electrically connected to the input circuit 12, the control circuit 16 and the auxiliary circuit 18 on the flexible circuit board 102A through a plurality of lines. The second connection port 15 is disposed on the opposite side of the outer cover 101A, and is electrically connected to the output circuit 14 on the flexible circuit board 102A through a plurality of lines. The outer cover 101A is a soft covering sleeve to cover and protect the flexible circuit board 102A and protect the aforementioned circuits. The first connection port 11 and the second connection port 15 respectively expose the cover 101A for connecting the power supply 20 and the computer device 30. Wherein, in the structure shown in FIG. 5C, the first connection port 11 may adopt the aforementioned connection port composed of 10 pins and 14 pins, and the first connection port 11 is a male connection port. The second connection port 15 can adopt the aforementioned 10-pin connection port, and the second connection port 15 is a male connection port.

Wherein, in the structure shown in FIG. 5C, since the power conversion system 10 is composed of the flat cable structure, and the first connection port 11 is a connection port composed of 10 pins and 14 pins. Therefore, the connection function of each pin of the first connection port 11 can be directly connected to the above-mentioned power supply 20 without pre-definition, and received through the circuit pair provided on the flexible circuit board 102A The signal is converted. Because the first connection port 11 of the power conversion system 10 shown in FIG. 5C can be directly connected to the above-mentioned power supply 20 without considering the connection function of each pin, so as to improve the convenience of use and elasticity.

10: Power conversion system

11: The first port

12: Input circuit

13: Rectifier circuit

14: output circuit

15: second port

16: control circuit

17: Voltage sampling circuit

18: auxiliary circuit

20: power supply

30: computer equipment

Claims (8)

A power conversion system is used to connect a power supply and a computer device. The power conversion system includes: a first connection port connected to the power supply to receive a standby voltage input signal; an input circuit connected to the second A connection port; a rectification circuit connected to the input circuit; a control circuit respectively connected to the first connection port, the input circuit, and between the rectification circuit and the output circuit; an output circuit connected to the rectification circuit to Output a standby voltage conversion signal; a second connection port connected to the output circuit to transmit the standby voltage conversion signal to the computer equipment; a voltage sampling circuit connected between the rectifier circuit and the output circuit and connected to the Control circuit; an auxiliary circuit connected to the first connection port and connected between the rectifier circuit, the output circuit, the control circuit and the voltage sampling circuit. The power conversion system according to claim 1, wherein the input circuit includes a first capacitor including a first terminal and a second terminal, the first terminal of the first capacitor is connected to the first connection port, and the first terminal A second end of a capacitor is connected to the first port and ground; a second capacitor includes a first end and a second end, and the first end of the second capacitor is connected to the first end of the first capacitor and the A first connection port, the second end of the second capacitor is connected to the second end of the first capacitor and the first connection port and ground; a first inductor includes a first end and a second end, the first The first end of the inductor is connected to the first connection port, the first end of the first capacitor and the first end of the second capacitor, and the second end of the first inductor is connected to the rectifier circuit and the control circuit. The power conversion system according to claim 2, wherein the rectifier circuit includes: a first diode including a first end and a second end, and the first end of the first diode is connected to the first inductor The second end of the first diode and the control circuit, the second end of the first diode is connected to the output circuit, the control circuit, and the voltage sampling circuit; a first resistor including a first end and a second end, the The first end of the first resistor is connected to the second end of the first inductor and the control circuit; a third capacitor includes a first end and a second end, and the first end of the third capacitor is connected to the first resistor The second end of the third capacitor is connected to the second end of the first diode, the control circuit, the output circuit, the voltage sampling circuit and the auxiliary circuit. The power conversion system according to claim 3, wherein the output circuit includes: a fourth capacitor including a first terminal and a second terminal, and the first terminal of the fourth capacitor is connected to the second terminal of the first diode Two ends, the second end of the third capacitor, the auxiliary circuit, the control circuit, and the voltage sampling circuit; a second inductor includes a first end and a second end, and the first end of the second inductor is connected The first terminal of the fourth capacitor, the second terminal of the first diode, the second terminal of the third capacitor, the auxiliary circuit, the control circuit, the voltage sampling circuit, and the second terminal of the second inductor Connected to the second port; a fifth capacitor, including a first end and a second end, the first end of the fifth capacitor is connected to the second end of the second inductor and the second port, the fifth The second end of the capacitor is connected to the second connection port and grounded. The power conversion system according to claim 4, wherein the control circuit includes a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a sixth capacitor, and a seventh capacitor , An eighth capacitor, a ninth capacitor, a tenth capacitor, and a controller; the controller includes a plurality of connection ends, a first connection end and a second connection end of the controller are connected, and are connected to the first connection end A first end of the two resistors, a second end of the first inductor, a first end of the first diode Terminal is connected to the first terminal of the first resistor, a first terminal of the sixth capacitor is connected to a second terminal of the second resistor, and a second terminal of the sixth capacitor is grounded; a third terminal of the controller The connecting terminal is connected to a first terminal of the seventh capacitor, and a second terminal of the seventh capacitor is grounded; a fourth terminal of the controller is connected to a first terminal of the third resistor, and a second terminal of the third resistor is connected to the ground. The second end is connected to the first connection port; a fifth connection end of the controller is connected to the voltage sampling circuit; a sixth connection end of the controller is connected to a first end of the fourth resistor and the eighth capacitor A first end, a first end of the ninth capacitor is connected to a second end of the fourth resistor, a second end of the ninth capacitor is connected to a second end of the eighth capacitor and ground; the controller A seventh connecting end of the tenth capacitor is connected to a first end of the fifth resistor, a first end of the tenth capacitor is connected to a second end of the fifth resistor, and a second end of the tenth capacitor is connected to the sixth A first end of the resistor and an eighth connection end of the controller, and a second end of the sixth resistor is connected to the first end of the second inductor, the first end of the fourth capacitor, and the first two poles The second end of the body, the second end of the third capacitor, the auxiliary circuit and the voltage sampling circuit. The power conversion system according to claim 5, wherein the voltage sampling circuit includes a seventh resistor including a first terminal and a second terminal, and the first terminal of the seventh resistor is connected to the first terminal of the fourth capacitor. Terminal, the second terminal of the first diode, the second terminal of the third capacitor, the auxiliary circuit, the second terminal of the sixth resistor, and the first terminal of the second inductor; an eighth resistor, including A first end and a second end, the first end of the eighth resistor is connected to the second end of the seventh resistor and the fifth connection end of the controller, and the second end of the eighth resistor is grounded; and the auxiliary The circuit includes a second diode. The second diode includes a first end and a second end. The first end of the second diode is connected to the first connection port. The second end is connected to the fourth The first end of the capacitor, the second end of the first diode, the second end of the third capacitor, the second end of the sixth resistor, the first end of the seventh resistor, and the second end of the second inductor One end. The power conversion system according to claim 1, which further includes a cover and a hard circuit board; the first connection port, the input circuit, the rectifier circuit, the output circuit, the second connection port, the control circuit, The voltage sampling circuit and the auxiliary circuit are arranged on the hard circuit board, the outer cover covers the hard circuit board, and the first connection port and the second connection port expose the outer cover. The power conversion system according to claim 1, further comprising a cover and a flexible circuit board, the cover covering the flexible circuit board, the input circuit, the rectifier circuit, the output circuit, the control circuit, and the voltage sampling The circuit and the auxiliary circuit are arranged on the flexible circuit board; the first connection port is arranged on one side of the cover, and is electrically connected to the input circuit, the control circuit and the auxiliary circuit on the flexible circuit board; The second connection port is arranged on the opposite side of the outer cover and is electrically connected to the output circuit.

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