TW201543799A - Power supply module and control method thereof - Google Patents

Abstract

A power supply module is provided. The power supply includes a plurality of output ports, a power conversion circuit, and a signal control unit. The power conversion circuit is coupled to the plurality of output ports, and the power conversion circuit receives an alternating current power and a power configuration signal to determine voltage statuses of output voltages of these output ports according to the power configuration signal. The signal control unit is coupled to the power conversion circuit, and the signal control unit receives a power control signal to provide the power configuration signal. Accordingly, apparatuses connected with each of the plurality of output ports may acquire more efficient power according to a user's requirement.

Description

Power supply module and control method thereof

The present invention relates to a power supply module and a control method thereof, and more particularly to a power supply module capable of adjusting a voltage state of output voltages of a plurality of output ports and a control method thereof.

With the rapid development of technology, a variety of electronic devices (such as computers, smart phones, tablets, smart home appliances, etc.) have sprung up. In general, electronic devices typically require a power source to supply their operation, while various electronic devices have different power specifications (eg, direct current (DC) 5 volts (voltage; V), alternating current (AC) 110 volts, etc.). Therefore, in order to respond to electronic devices of different power specifications, a variety of power supply devices and batteries that provide power are also available on the market to provide power for electronic devices that meet specific power specifications.

However, conventional power supply devices typically only provide power supplies of several specific power specifications, or require additional adapters or transformers to accommodate electronic devices of different power specifications or to charge their batteries. In addition, the traditional power supply The output voltage of the output 埠 is usually fixed, and the user cannot adjust the voltage state of the power supply supplied by each output 在 during the power supply process, so that the user cannot conveniently use the power supply device. Therefore, how to design a power supply device that meets various power specifications and can individually adjust the voltage state of the output voltage is required by the market.

The invention provides a power supply module and a control method thereof, which can meet various power specifications, and adjust the voltage state of each output 埠 output voltage according to user requirements, so as to improve the convenience of use of the power supply module.

The power supply module proposed by the invention comprises an output port, a power conversion circuit and a signal control unit. The power conversion circuit is coupled to the output port, and the power conversion circuit receives the AC power and the power setting signal to determine the voltage state of the output voltage of the output port according to the power setting signal. The signal control unit is coupled to the power conversion circuit, and the signal control unit receives the power control signal to provide a power setting signal.

In an embodiment of the invention, the power conversion circuit includes a power input circuit and a sub power conversion circuit. The power input circuit is coupled to the signal control unit, and the power input circuit receives the AC power to generate a reference voltage to the signal control unit according to the voltage level of the AC power source, and the signal control unit provides an input power control signal according to the reference voltage to control the power input circuit. A DC voltage is supplied in accordance with the input power control signal. The sub-power conversion circuit is coupled to the signal control unit, the power input circuit and the output port to receive the DC voltage and the power setting signal, and the sub-power conversion circuit will The DC voltage is converted to an output voltage to be supplied to the output port, and the sub-power conversion circuit sets the voltage state of the output voltage according to the power setting signal.

In an embodiment of the invention, the power input circuit includes first, second, third, and fourth diodes, a first switch, first, second, and third resistors, and first and second capacitors. . The cathode end of the first diode receives AC power. The anode terminal of the second diode receives AC power. The cathode end of the third diode is coupled to the cathode end of the second diode, and the anode end of the third diode receives AC power. The cathode end of the fourth diode is coupled to the anode end of the third diode, and the anode end of the fourth diode is coupled to the anode end of the first diode. The first switch has an input end, a first output end, a second output end and a third output end, the input end of the first switch is coupled to the anode end of the third diode, and the input end of the first switch is based on the input power control signal And coupled to the first output end, the second output end, and the third output end, wherein the second output end of the first switch provides a DC voltage, and the third output end of the first switch is floating. The first resistor is coupled between the first output terminal and the anode terminal of the first diode to provide a reference voltage. The first capacitor is coupled between the second output end of the first switch and the anode end of the first diode. The second resistor is coupled between the second output end of the first switch and the anode end of the first diode. The second capacitor is coupled between the second output end of the first switch and the anode end of the first diode. The third resistor is coupled between the second output end of the first switch and the anode end of the first diode.

In an embodiment of the invention, each of the sub-power conversion circuits includes first and second switching transistors, third, fourth, and fifth capacitors, second, third, and fourth switches, and fifth and second poles. Body and first inductance. The first switching transistor has a first end, The second end and the control end, the first end of the first switching transistor is coupled to the power input circuit to receive the DC voltage, and the control end of the first switching transistor receives the first control signal of the corresponding power setting signal. The second switching transistor has a first end, a second end and a control end, the second end of the second switching transistor is coupled to the second input end of the sub-power conversion circuit, and the control end of the second switching transistor receives the corresponding A second control signal of the power setting signal. The second switch is coupled between the second end of the first switching transistor and the first end of the second switching transistor to be turned on according to a switch control signal of the corresponding power setting signal. The first end of the third switch is coupled to the first end of the first switching transistor. The third capacitor is coupled between the second end of the third switch and the second end of the first switch transistor to be turned on according to the switch control signal. The fourth switch has a common end, a first connecting end and a second connecting end, and the common end of the fourth switch is coupled to the second end of the first switching transistor, and the common end determines whether to be coupled to the first according to the corresponding switch control signal The connection end or the second connection end. The fourth capacitor is coupled between the first connection end of the fourth switch and the first end of the second switch transistor. The cathode of the fifth diode is coupled to the second terminal of the fourth switch, and the anode of the fifth diode is coupled to the second end of the second switching transistor. The first end of the first inductor is coupled to the second end of the first switching transistor, and the second end of the first inductor provides a corresponding output voltage. The fifth capacitor is coupled between the second end of the first inductor and the first end of the second switch transistor.

In an embodiment of the invention, when the second switch of each of the sub-power conversion circuits is turned on by the switch control signal, the third switch is controlled by the switch control signal, and the common end of the fourth switch is Controlling the switch control signal and coupling the first connection end, so that the output voltage is an AC output voltage, wherein the AC output voltage is The amplitude is determined according to the first control signal and the second control signal.

In an embodiment of the invention, when the second switch of each of the sub-power conversion circuits is turned off by the switch control signal, the third switch is controlled by the switch control signal, and the common end of the fourth switch is blocked. The second connection end is coupled to the switch control signal, so that the output voltage is a DC output voltage, wherein the voltage level of the DC output voltage is determined according to the first control signal.

In an embodiment of the invention, the signal control unit provides the first control signal and the second control signal according to the power control signal.

In an embodiment of the invention, the voltage state of the output voltage includes one of a voltage level, a voltage type, or a combination thereof.

On the other hand, the control method of the power supply module proposed by the present invention includes the following steps. A power control signal is received to provide a power setting signal. And receiving an AC power source and a power setting signal to determine a voltage state of an output voltage of the output port of the power supply module according to the power setting signal.

In an embodiment of the invention, the receiving the AC power and the power setting signal to determine the voltage state of the output voltage of the power supply module according to the power setting signal includes the following steps. The AC power is received to generate a reference voltage according to the voltage level of the AC power source. An input power control signal is provided based on the reference voltage. Receive DC voltage and power setting signals. The DC voltage is converted to an output voltage to be supplied to the output port, and the voltage state of the output voltage is set according to the power setting signal.

In an embodiment of the invention, the DC voltage is converted into an output voltage to be supplied to the output port, and the voltage of the output voltage is set according to the power setting signal. The state includes the following steps. The output voltage is an AC output voltage according to the corresponding power setting signal, wherein the amplitude of the AC output voltage is determined according to the first control signal and the second control signal of the corresponding power setting signal.

In an embodiment of the invention, the converting the DC voltage into an output voltage to provide to the output port, and setting the voltage state of the output voltage according to the power setting signal includes the following steps. The output voltage is a DC output voltage according to the corresponding power setting signal, wherein the voltage level of the DC output voltage is determined according to the first control signal of the corresponding power setting signal.

In an embodiment of the invention, the converting the DC voltage into an output voltage to provide to the output port, and setting the voltage state of the output voltage according to the power setting signal includes the following steps. And providing a first control signal and a second control signal according to the power control signal.

In an embodiment of the invention, the voltage state of the output voltage of the output port includes one of a voltage level, a voltage type, or a combination thereof.

Based on the above, the power supply module and the control method thereof according to the embodiment of the present invention, the power conversion circuit power setting signal adjusts the voltage state of the output voltage of the output port. Thereby, the corresponding electronic devices of different power specifications can provide output signals of different voltage states to improve the convenience of use of the power supply device.

The above described features and advantages of the invention will be apparent from the following description.

100‧‧‧Power supply module

111, 113, 115‧‧‧ Output埠

130‧‧‧Power conversion circuit

150‧‧‧Signal Control Unit

270‧‧‧Power input circuit

275‧‧‧Rectifier circuit

281, 283, 285‧ ‧ sub-power conversion circuit

500‧‧‧Monitoring interface

510‧‧‧Display area

530‧‧‧Switch control area

550‧‧‧Adjust control area

S610~S630‧‧‧Steps

VO1, VO3, VO5‧‧‧ output voltage

PAC‧‧‧AC power supply

VDC‧‧‧ DC voltage

SC1‧‧‧Power setting signal

SC2‧‧‧Power control signal

SIC‧‧‧ input power control signal

SS1‧‧‧ switch control voltage

VREF‧‧‧reference voltage

D1‧‧‧First Diode

D2‧‧‧ second diode

D3‧‧‧ third diode

D4‧‧‧ fourth diode

D5‧‧‧ fifth diode

C1‧‧‧first capacitor

C2‧‧‧second capacitor

C3‧‧‧ third capacitor

C4‧‧‧fourth capacitor

C5‧‧‧ fifth capacitor

R1‧‧‧first resistance

R2‧‧‧second resistance

R3‧‧‧ third resistor

T1‧‧‧ first switch

T2‧‧‧ second switch

T3‧‧‧ third switch

T4‧‧‧fourth switch

IN‧‧‧ input of the first switch

ON1‧‧‧first output of the first switch

ON2‧‧‧ second output of the first switch

ON3‧‧‧ third output of the first switch

Common end of CM‧‧‧ fourth switch

The first connection of the CN1‧‧‧ fourth switch

CN2‧‧‧second connection of the fourth switch

Q1‧‧‧First Switching Transistor

Q2‧‧‧Second switch transistor

L1‧‧‧first inductance

VC1‧‧‧ first control signal

VC2‧‧‧second control signal

VOAC‧‧‧AC output voltage

VODC‧‧‧DC output voltage

1 is a block diagram of a power supply module in accordance with an embodiment of the present invention.

2 is a block diagram of a power supply module in accordance with an embodiment of the present invention.

3 is a circuit diagram of a power supply input circuit in accordance with an embodiment of the present invention.

4A-4C are schematic diagrams showing the circuit operation of a sub-power conversion circuit according to an embodiment of the invention.

FIG. 5 is a schematic diagram of a monitoring interface according to an embodiment of the invention.

FIG. 6 is a flow chart of a method of controlling a power supply module according to an embodiment of the invention.

1 is a block diagram of a power supply module in accordance with an embodiment of the present invention. Referring to FIG. 1 , in the embodiment, the power supply module 100 includes, for example, output ports 111 , 113 , 115 , a power conversion circuit 130 , and a signal control unit 150 . The power conversion circuit 130 is coupled to the output ports 111, 113, 115, and the power conversion circuit 130 receives the AC power source PAC and the plurality of power setting signals SC1 to determine the output voltages VO1 of the output ports 111, 113, 115 according to the power setting signal SC1. The voltage state of VO3 and VO5. The signal control unit 150 is coupled to the power conversion circuit 130, and the signal control unit 150 receives the power control signal SC2 to provide these power setting signals SC1. In this embodiment, the voltage state is, for example, one of a voltage level, a voltage type, or a combination thereof.

For example, the signal control unit 150 is, for example, powered by a device. The power control signal SC2 is received by an operation control module (not shown) or a communication module (not shown) on the module 100. For example, the user can input the power control signal SC2 including the desired power parameter (for example, output voltage 5 volts, output current 2 amps, etc.) on the input interface (not shown) of the power supply module 100, or use The remote control remote terminal transmits the power control signal SC2 to be set. After receiving the power control signal SC2, the power supply module 100 converts the power control signal SC2 into a power setting signal SC1 for controlling the power conversion circuit 130 to set the output of the power conversion circuit 130 to the output ports 111, 113, 115. The voltage states of the output voltages VO1, VO3, and VO5. Next, the AC power source PAC is converted to the output voltages VO1, VO3, and VO5 set by the power setting signal SC1 via the power conversion circuit 130.

For example, after the universal serial bus (USB) device is coupled to the output port 111, the user can set the output voltage VO1 of the output port 111 to be a DC voltage and a voltage of 5 volts to enable the power conversion circuit 130. The mains AC voltage 220 volts is converted into an output voltage VO1 conforming to the USB specification according to the power setting signal SC1; or, after the home appliance is coupled to the output port 113, the user can set the output voltage VO3 of the output port 113 to an AC voltage and the amplitude is 110 volts to cause the power conversion circuit 130 to convert the commercial AC voltage 220 volts into a corresponding output voltage VO3 in accordance with the power setting signal SC1.

In this embodiment, the output ports 111, 113, 115 can be connected in the same format and can be connected to the electronic device through different patch cords. However, in other embodiments, the output ports 111, 113, and 115 may be connected to each other in different formats. Connector format for different electronic devices. The foregoing is an example for illustration, but the embodiment of the present invention is not limited thereto.

In this embodiment, the power supply module 100 of the present invention includes a power input circuit and a sub-power conversion circuit. 2 is a block diagram of a power supply module 100 in accordance with an embodiment of the present invention. Please refer to FIG. 1 and FIG. 2, wherein the same or similar elements are given the same or similar reference numerals. In the present embodiment, the power conversion circuit 130 includes, for example, a power supply input circuit 270 and sub-power conversion circuits 281, 283, and 285.

The power input circuit 270 is coupled to the signal control unit 150, and the power input circuit 270 receives the AC power source PAC to generate the reference voltage VREF to the signal control unit 150 according to the voltage level of the AC power source PAC. Next, the signal control unit 150 provides an input power control signal SIC according to the reference voltage VREF to control the power input circuit 270 to provide a DC voltage VDC according to the input power control signal SIC. The sub power conversion circuits 281, 283, and 285 are coupled to the signal control unit 150, the power input circuit 270, and the corresponding output ports 111, 113, and 115, respectively, to receive the DC voltage VDC and the power setting signal SC1. The sub-power conversion circuits 281, 283, and 285 respectively convert the DC voltage VDC into the output voltages VO1, VO3, and VO5 to be supplied to the output ports 111, 113, and 115, and the sub-power conversion circuits 281, 283, and 285 respectively depend on the corresponding power. The setting signal SC1 sets the voltage states of the output voltages VO1, VO3, and VO5.

3 is a circuit diagram of a power supply input circuit 270 in accordance with an embodiment of the present invention. Referring to FIG. 2 and FIG. 3, the power input circuit 270 includes a first diode D1, a second diode D2, a third diode D3, a fourth diode, and a first switch T1. The first resistor R1, the second resistor R2, the third resistor R3, and the first capacitor C1 and the second capacitor C2. The cathode terminal of the first diode D1 receives the AC power source PAC. The anode terminal of the second diode D2 receives the AC power source PAC. The cathode end of the third diode is coupled to the cathode end of the second diode D2, and the anode end of the third diode D3 receives the AC power source PAC. The cathode end of the fourth diode D4 is coupled to the anode end of the third diode D3, and the anode end of the fourth diode D4 is coupled to the anode end of the first diode D1.

The first switch T1 has an input terminal IN, a first output terminal ON1, a second output terminal ON2, and a third output terminal ON3. The input terminal N1 of the first switch T1 is coupled to the anode terminal of the third diode D3, and the first switch The input terminal N1 of the T1 is coupled to the first output terminal ON1, the second output terminal ON2, and the third output terminal ON3 according to the input power control signal SIC. The second output terminal ON2 of the first switch T1 provides a DC voltage VDC, the third output terminal ON3 of the first switch T1 is floating, and the input terminal IN of the first switch T1 is pre-coupled to the first output terminal. ON1. The first resistor R1 is coupled between the first output terminal ON1 and the anode terminal of the first diode D1 to provide a reference voltage VREF. The first capacitor C1 is coupled between the second output terminal ON2 of the first switch T1 and the anode terminal of the first diode D1. The second resistor R2 is coupled between the second output terminal ON2 of the first switch T1 and the anode terminal of the first diode D1. The second capacitor C2 is coupled between the second output terminal ON2 of the first switch T2 and the anode terminal of the first diode D1. The third resistor R3 is coupled between the second output terminal ON2 of the first switch T1 and the anode terminal of the first diode D1.

For example, when an AC power source PAC that exchanges 110 volts is input to the power input circuit 270, the input terminal IN of the first switch T1 in the power input circuit 270 The first output terminal ON1 is pre-coupled according to the input power control signal SIC to provide the reference voltage VREF to the signal control unit 150. After the signal control unit 150 determines that the voltage state of the currently input AC power source PAC is 110 volts via the reference voltage VREF, the signal control unit 150 provides the power setting signal SC1 according to the reference voltage VREF, so that the first switch in the power input circuit 270 The input terminal IN of T1 is coupled to the second output terminal ON2. At this time, the rectification effect of the power input circuit 270 is similar to the half-wave rectification filtering, and the voltage of the output DC voltage VDC is approximately equal to 110 volts.

On the other hand, when an AC power supply PAC of 220 volts is input to the power input circuit 270, the input terminal IN of the first switch T1 in the power input circuit 270 is pre-coupled to the first output according to the input power control signal SIC. Terminal ON1 is powered to provide a reference voltage VREF to signal control unit 150. The signal control unit 150 determines, via the reference voltage VREF, that the voltage state of the currently input AC power source PAC is 220 VAC, the signal control unit 150 provides the power setting signal SC1 according to the reference voltage VREF, so that the first switch in the power input circuit 270 The input terminal IN of T1 is coupled to the third output terminal ON3. At this time, the rectification effect of the power input circuit 270 is similar to full-wave rectification filtering, and since the capacitors C1, C2 and the resistors R2, R3 are divided, so that the voltage of the output DC voltage VDC is still approximately equal to 110 volts. .

Thereby, the power supply module 100 can receive the AC power source PAC of different voltage levels, and convert the AC power source PAC into a DC voltage VDC of a fixed voltage level to facilitate the sub-power conversion circuits 281, 283, 285 to set the output. 111. The voltage states of the output voltages VO1, VO3, and VO5 of 113 and 115.

4A-4C are circuit diagrams of a sub-power conversion circuit 281 in accordance with an embodiment of the present invention. Here, the sub power conversion circuit 281 is taken as an example, and the sub power conversion circuits 283 and 285 can refer to the related description of the sub power conversion circuit 281. Referring to FIG. 2 and FIG. 4A , in the embodiment, the sub-power conversion circuit 281 includes, for example, a first switching transistor Q1, a second switching transistor Q2, a third capacitor C3, a fourth capacitor C4, and a fifth capacitor C5. a second switch T2, a third switch T3, a fourth switch T4, a fifth diode D5, and a first inductor L1, and each power setting signal SC1 includes, for example, a first control signal VC1, a second control signal VC2, and a switch control Voltage SS1.

The first end of the first switching transistor Q1 is coupled to the power input circuit 270 to receive the DC voltage VDC, and the control terminal of the first switching transistor Q1 receives the first control signal VC1. The second end of the second switching transistor Q2 is coupled to the power input circuit 270, and the control end of the second switching transistor Q2 receives the second control voltage VC2. The second switch T2 is coupled between the second end of the first switching transistor Q1 and the first end of the second switching transistor Q2 to be turned on according to the switching control voltage SS1. The first end of the third switch T3 is coupled to the first end of the first switching transistor Q1. The third capacitor C3 is coupled between the second end of the third switch T3 and the second end of the first switching transistor Q1. The fourth switch T4 has a common terminal CM, a first connection terminal CN1 and a second connection terminal CN2. The common terminal CM of the fourth switch T4 is coupled to the second end of the first switch transistor Q1, and the common terminal CM of the fourth switch T4. Whether the first connection terminal CN1 or the second connection terminal CN2 is coupled is determined according to the corresponding switch control voltage SS1. The fourth capacitor C4 is coupled between the first connection terminal CN1 of the fourth switch T4 and the second end of the second switching transistor Q2. Fifth diode The cathode of the D5 is coupled to the second terminal CN2 of the fourth switch T4, and the anode of the fifth diode D5 is coupled to the second terminal of the second switching transistor Q2. The first end of the first inductor L1 is coupled to the second end of the first switching transistor Q1, and the second end of the first inductor L1 provides a corresponding output voltage (eg, the output voltage VO1). The fifth capacitor C5 is coupled between the second end of the first inductor L1 and the second end of the second switch transistor Q2.

For example, when the second end of the second switch T2 of the sub power conversion circuit 281 is turned on by the switch control voltage SS1, the third switch T3 is turned on by the switch control voltage SS1, and the fourth switch T4 The common terminal CM is controlled by the switch control voltage SS1 and coupled to the first connection terminal CN1. At this time, the sub power conversion circuit 281 is similar to a DC-to-AC circuit such that the output voltage (for example, the output voltage VO1) is the AC output voltage VOAC. Moreover, since the first switching transistor Q1 and the second switching transistor Q2 are alternately turned on and off by the first control signal VC1 and the second control signal VC2, the amplitude of the AC output voltage VOAC is determined according to the first control. The signal VC1 and the second control signal VC2 are determined.

Therefore, when the user inserts a plug of an AC-type electronic device (for example, a computer main body) into the output port 111, the user can set the power supply module 100 to set the output port 111 to output 110 volts of AC power. The signal control unit 150 receives the power control signal SC2 set by the user, and generates the power setting signal SC1 according to the power control signal SC2 to set the sub-power conversion circuit 281 to operate in the AC mode.

When the sub power conversion circuit 281 operates in the AC mode according to the corresponding power setting signal SC1, the second end of the second switch T2 of the sub power conversion circuit 281 and The third switch T3 is electrically connected, and the common terminal CM of the fourth switch T4 is coupled to the first connection terminal CN1. Referring to FIG. 4B, the equivalent circuit of the sub-power conversion circuit 281 in FIG. 4B is similar to a half bridge inverter. At this time, the first switching transistor Q1 and the second switching transistor Q2 are respectively reacted to the first. The control signal VC1, the second control signal VC2 (for example, a pulse width modulation signal) is turned on or off, and the capacitor C5 reacts with the switching of the first switching transistor Q1 and the second switching transistor Q2 to charge and discharge, so that The sub power conversion circuit 281 supplies an AC output voltage VOAC (for example, a sine wave) as an output voltage VO1 to be output to a corresponding output 埠 (for example, output 埠 111). Moreover, the signal control unit 150 can set the amplitude of the AC output voltage VOAC by setting the frequencies of the first control signal VC1 and the second control signal VC2.

On the other hand, when the second switch T2 of the sub power conversion circuit 281 is turned off by the switch control voltage SS1, the third switch T3 is controlled to be turned off by the switch control voltage SS1, and the common terminal CM of the fourth switch T4 The switch control voltage SS1 is coupled to the second connection terminal CN2. At this time, the sub power conversion circuit 281 is similar to a DC-to-DC circuit such that the output voltage (for example, the output voltage VO1) is the DC output voltage VODC. Moreover, since the first switching transistor Q1 is alternately turned on and off controlled by the first control signal VC1, the voltage level of the DC output voltage VODC is determined according to the first control signal VC1.

Therefore, when the user inserts a plug of a DC-sized electronic device (for example, a USB charger) into the output port 111, the user can set the power supply module 100 to set the output port 111 to output 5 volts of AC power. The signal control unit 150 receives the power control signal SC2 set by the user, and is controlled according to the power. The signal SC2 generates a power setting signal SC1 to set the sub-power conversion circuit 281 to operate in a DC mode.

When the sub power conversion circuit 281 operates in the DC mode according to the corresponding power setting signal SC1, the second end of the second switch T2 of the sub power conversion circuit 281 and the third switch T3 are both turned off, and the common end of the fourth switch T4. The CM is coupled to the second connection terminal CN2. Referring to FIG. 4C, the equivalent circuit of the sub-power conversion circuit 281 in FIG. 4C is similar to a buck converter, and the first switching transistor Q1 is reacted to the first The control signal VC1 (for example, a pulse width modulation signal) is turned on or off, and the capacitor C5 reacts with the switching of the first switching transistor Q1 to charge and discharge energy, so that the sub-power conversion circuit 281 provides the DC output voltage VODC as the output voltage VO1. To output to the corresponding output 埠 (for example, output 埠 111). Moreover, the signal control unit 150 can set the voltage level of the DC output voltage VODC by setting the frequency of the first control signal VC1.

In this embodiment, the signal control unit 150 provides the first control signal VC1 and the second control signal VC2 according to the power control signal SC2, so that the user can set the amplitude of the AC output voltage VOAC or the voltage level of the DC output voltage VODC. Bit.

In addition, the sub-power conversion circuits 281 to 285 in the embodiment of the present invention are respectively coupled to the output ports 111-115 (for example, five sub-power conversion circuits are respectively coupled with five output ports), so that the power supply module 100 can be respectively configured. The voltage states of the output voltages VO1, VO3, and VO5 of the output ports 111 to 115 are controlled.

Thereby, the user can individually adjust the output 埠111~115 according to the demand. The voltage states of the voltages VO1, VO3, and VO5 are output so that the power supply module 100 can provide an AC or DC output voltage according to the electronic device, thereby improving the usability of the power supply device 100.

In addition, in an embodiment, the signal control unit 150 obtains the voltage states of the AC power supply PAC, the DC voltage VDC, and the output voltages VO1, VO3, and VO5 of the output ports 111-115, and transmits a power state signal to transmit the power supply mode. The power state of group 100 (eg, current magnitude, voltage type, voltage level, etc.) to the user's monitoring interface.

For example, FIG. 5 is a schematic diagram of a monitoring interface in accordance with an embodiment of the present invention. Referring to FIG. 5, the monitoring interface 500 includes a display area 510, a switch control area 530, and an adjustment control area 550. The monitoring interface 500 can be equipped on the power supply module 100 or an additional remote controller, and can be coupled to the power supply module 100 through a wired interface or a wireless interface. The signal control unit 150 can transmit the power status signal PSS to display the power status of the power supply module 100 in the display area 510, for example, the operating state of the power supply module 100, the current operating state of the device, and the set voltage/current. Value and current voltage/current values of the powered device. The user can also operate the switch control area 530 to turn the power of the power supply module on or off. Moreover, the user can operate the adjustment control area 550 to set the voltage or current value of the powered device, and transmit the power control signal SC2 to the power supply module 100. It should be noted that the size, position and pattern of the display area 510, the switch control area 530 and the adjustment control area 550 in FIG. 5 are only examples. In other embodiments, the display area 510, the switch control area 530 and the adjustment control area 550 Available in different sizes, positions and patterns.

FIG. 6 is a flow chart of a method of controlling a power supply module according to an embodiment of the invention. Referring to FIG. 6, the embodiment is applicable to the power supply module 100 shown in FIG. 1. The control method of the power supply module 100 includes the following steps. The signal control unit 150 receives the power control signal SC2 to provide the power setting signal SC1 (step S610). The power conversion circuit 130 receives the AC power supply PAC and the power setting signal SC1 to determine the voltage states of the output voltages VO1, VO3, and VO5 of the outputs 埠VO1, VO2, and VO3 of the power supply module 100 in accordance with the power setting signal SC1 (step S630). The processes of the present control method may be adjusted correspondingly according to the implementation situation, and are not limited thereto. For details of the above steps, reference may be made to the description of the embodiment of FIG. 1 to FIG. 5, and details are not described herein again.

In summary, the power supply module and the control method thereof according to the embodiments of the present invention, the power conversion circuit power setting signal adjusts the voltage state of the output voltage of the output port. Thereby, the corresponding electronic devices of different power specifications can provide output signals of different voltage states to improve the convenience of use of the power supply device. Moreover, the power input circuit provides a reference voltage to determine the voltage state of the input power source through the signal control unit, and correspondingly adjust the circuit operation of the power input voltage. Thereby, the power input circuit can receive the AC voltage of different voltages but provide the DC voltage of the same voltage level. In addition, the embodiment of the present invention can monitor and adjust the power state of the power supply module, so as to control the power state of the power supply module at any time.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of protection of the present invention It is subject to the definition of the scope of the patent application attached.

100‧‧‧Power supply module

111, 113, 115‧‧‧ Output埠

130‧‧‧Power conversion circuit

150‧‧‧Signal Control Unit

SC1‧‧‧Power setting signal

SC2‧‧‧Power control signal

VO1, VO3, VO5‧‧‧ output voltage

PAC‧‧‧AC power supply

Claims (14)

A power supply module includes: a plurality of output ports; a power conversion circuit coupled to the output ports, and receiving an AC power source and a plurality of power setting signals to determine the output ports according to the power setting signals a voltage state of the plurality of output voltages; and a signal control unit coupled to the power conversion circuit to receive a power control signal to provide the power setting signals. The power supply module of claim 1, wherein the power conversion circuit comprises: a power input circuit coupled to the signal control unit, and receiving the AC power to generate a voltage according to the voltage level of the AC power source. a reference voltage to the signal control unit, the signal control unit provides an input power control signal according to the reference voltage to control the power input circuit to provide a DC voltage according to the input power control signal; and a plurality of sub-power conversion circuits coupled to the a signal control unit, the power input circuit and the output ports to receive the DC voltage and the power setting signals, and the sub-power conversion circuits convert the DC voltage into the output voltages to provide to the output ports, And the sub-power conversion circuits set the voltage states of the output voltages according to the power setting signals. The power supply module of claim 2, wherein the power input circuit comprises: a first diode, the cathode end receiving the alternating current power source; a second diode body having an anode end receiving the alternating current power source; and a third diode body having a cathode end coupled to the second diode body Extremely, and the anode end receives the AC power source; a fourth diode body having a cathode end coupled to the anode end of the third diode, and an anode end coupled to the anode end of the first diode; a switch having an input end, a first output end, a second output end, and a third output end, the input end being coupled to the anode end of the third diode, the input end of the first switch being The input power control signal is coupled to the first output terminal, the second output terminal, and the third output terminal, wherein the second output terminal provides the DC voltage, and the third output terminal is floating; a resistor coupled between the first output terminal and the anode terminal of the first diode to provide the reference voltage; a first capacitor coupled to the second output terminal and the first diode Between the anode ends; a second resistor coupled to the second output end and the anode end of the first diode a second capacitor coupled between the second output terminal and the anode terminal of the first diode; and a third resistor coupled to the second output terminal and the anode of the first diode Between extremes. Such as the power supply module described in claim 2, wherein each of these The sub-power conversion circuit includes: a first switching transistor having a first end, a second end, and a control end, the first end of the first switching transistor being coupled to the power input circuit to receive the DC voltage And the control end of the first switch receives a first control signal corresponding to the power setting signal; a second switching transistor has a first end, a second end, and a control end, the second switch The second end of the transistor is coupled to the power input circuit, and the control end of the second switch transistor receives a second control signal corresponding to the power setting signal; a second switch coupled to the first Between the second end of the switch transistor and the first end of the second switch transistor, the switch is turned on according to a switch control signal corresponding to the power setting signal; and the third switch is coupled to the first end The first end of the first switch transistor is turned on according to the switch control signal; a third capacitor is coupled to the second end of the third switch and the second end of the first switch transistor Between; a fourth switch, with a total a second end of the first switch transistor, the common end is coupled to the second end of the first switch transistor, and the common end determines whether to couple the first connection end according to the corresponding switch control signal Or a second connection; a fourth capacitor coupled between the first connection end and the first end of the second switch transistor; a fifth diode having a cathode coupled to the second connection End, and its anode is coupled to the a second end of the second switching transistor; a first inductor having a first end coupled to the second end of the first switching transistor, and a second end providing a corresponding output voltage; and a fifth The capacitor is coupled between the second end of the first inductor and the first end of the second switch transistor. The power supply module of claim 4, wherein when the second switch is turned on by the switch control signal, the third switch is turned on by the switch control signal, and the fourth The common end of the switch is coupled to the first connection end by the switch control signal, so that the output voltage is an AC output voltage, wherein the amplitude of the AC output voltage is according to the first control signal and the second control Signal to decide. The power supply module of claim 4, wherein when the second switch is turned off by the switch control signal, the third switch is controlled by the switch control signal to be turned off, and the fourth The common terminal of the switch is coupled to the second connection end by the switch control signal, so that the output voltage is a DC output voltage, wherein the voltage level of the DC output voltage is determined according to the first control signal. The power supply module of claim 4, wherein the signal control unit provides the first control signal and the second control signal according to the power control signal. The power supply module of claim 1, wherein the voltage states of the output voltages comprise one of a voltage level, a voltage type, or a combination thereof. A method for controlling a power supply module includes: Receiving an AC power source and a plurality of power setting signals to determine a voltage state of the plurality of output voltages of the plurality of output ports of the power supply module according to the power setting signals; and receiving a power control signal to provide the power Set the signal. The control method of claim 9, wherein the step of receiving the AC power source and the power setting signals to determine the voltage states of the output voltages of the power supply module according to the power setting signals comprises: Receiving the AC power source to generate a reference voltage according to the voltage level of the AC power source; providing an input power control signal according to the reference voltage; controlling the power input circuit to provide a DC voltage according to the input power control signal; receiving the DC voltage And the power setting signals; and converting the DC voltage to the output voltages to provide to the output ports, and setting voltage states of the output voltages according to the power setting signals. The control method of claim 10, wherein the step of converting the DC voltage into the output voltages to provide the output voltages, and setting the voltage states of the output voltages according to the power setting signals comprises: The output voltage is an AC output voltage according to the corresponding power setting signal, wherein the amplitude of the AC output voltage is determined according to a first control signal and a second control signal of the corresponding power setting signal. The control method according to claim 10, wherein the direct current is And converting the voltage to the output voltages, and setting the voltage states of the output voltages according to the power setting signals, comprising: causing the output voltage to be a DC output voltage according to the corresponding power setting signal The voltage level of the DC output voltage is determined according to the corresponding power setting signal and a first control signal. The control method of claim 10, wherein the step of converting the DC voltage into the output voltages to provide the output voltages, and setting the voltage states of the output voltages according to the power setting signals comprises: And providing a first control signal and a second control signal according to the power control signal. The control method of claim 9, wherein the voltage states of the output voltages of the output ports include one of a voltage level, a voltage type, or a combination thereof.