Power supply, power supply management module and power supply management method

Abstract

The present application provides a power supply, a power management module and a power management method. The power supply includes a power management module and a power supply module. The power management module includes a first power supply module, a second power supply module, a detection unit and a switching control module. The first power supply module includes a first AC input, a first rectifier circuit and a first switching unit. The first end of the first switching unit is connected to the first rectifier circuit. The second power supply module includes a second AC input, a second rectifier circuit and a second switching unit. The third end of the second switching unit is connected to the second rectifier circuit and the fourth end of the second switching unit is connected to the second end of the first switching unit. The detection unit detects the first and second AC inputs. The switching control module controls the first and second switching units according to the detection signals.

Description

Technical Field

[0001] This invention relates to a power supply and conversion technology, and more particularly to a power supply device with power management functions and an integrated power conversion module. Background Technology

[0002] Power supplies are arguably the heart of electronic devices, directly impacting their performance. To ensure stable power supply and minimize costs, power management is essential. Therefore, managing power with low circuit complexity and hardware cost is a crucial current challenge. Furthermore, in traditional power supplies, the transformers and electronic components of the power converter are typically mounted independently on circuit boards, electrically connected via wiring. This configuration occupies significant board space and is a major reason why high-power power conversion systems and even the overall size of power supplies cannot be miniaturized. Integrating power management hardware with the power converter is another area worthy of research. Summary of the Invention

[0003] In view of this, the present invention provides a power supply, a power management module, and a power management method to improve the problems of the prior art.

[0004] An embodiment of the present invention provides a power supply. The power supply includes a power management module and a power supply module. The power management module outputs a rectified voltage, and the power supply module receives the rectified voltage and outputs a converted voltage. The power management module includes a first power supply module, a second power supply module, a detection unit, and a switching control module. The first power supply module includes a first AC input terminal, a first rectifier circuit, and a first switching unit. The first AC input terminal receives first AC power, and the first rectifier circuit rectifies the first AC power. The first switching unit includes a first terminal and a second terminal, and the first terminal of the first switching unit is connected to the first rectifier circuit. The second power supply module includes a second AC input terminal, a second rectifier circuit, and a second switching unit. The second AC input terminal receives a second AC power, and the second rectifier circuit rectifies the second AC power. The second switching unit includes a third terminal and a fourth terminal, the third terminal of the second switching unit is connected to the second rectifier circuit, and the fourth terminal of the second switching unit is connected to the second terminal of the first switching unit. The detection unit detects the first AC input terminal and the second AC input terminal and outputs a detection signal. The switching control module receives the detection signal and controls the first switching unit and the second switching unit to turn on and off according to the detection signal, so that one of the first power supply module and the second power supply module outputs rectified voltage.

[0005] An embodiment of the present invention provides a power supply module, wherein the power supply module further includes a first conversion circuit, a second conversion circuit, and an integrated power conversion module. The first conversion circuit is connected to the second terminal of a first switching unit and the fourth terminal of a second switching unit, and is used to convert the rectified voltage into a DC high voltage and adjust its power factor. The second conversion circuit is connected to the first conversion circuit and is used to regulate the DC high voltage. The integrated power conversion module includes a primary winding, a first power module, and an iron core. The primary winding is connected to the second conversion circuit and receives the regulated DC high voltage. The first power module is a pluggable or assembleable detachable module. The first power module includes a first circuit board, which includes a first placement portion and a first sensing portion. The first placement portion includes a fifth terminal and a sixth terminal, wherein the fifth terminal is connected to the first sensing portion, and the sixth terminal is electrically connected to the main circuit board. The first sensing portion includes a first central hole. The first primary winding is disposed on the first sensing portion. A first synchronous rectification unit is disposed on the first circuit board and receives the first output voltage of the first primary winding. The iron core passes through the first central hole.

[0006] An embodiment of the present invention provides a power supply management module. The power supply management module includes a first power supply module, a second power supply module, a detection unit, and a switching control module. The first power supply module includes a first AC input terminal, a first rectifier circuit, and a first switching unit. The first AC input terminal receives first AC power, and the first rectifier circuit rectifies the first AC power. The first switching unit includes a first terminal and a second terminal, with the first terminal connected to the first rectifier circuit. The second power supply module includes a second AC input terminal, a second rectifier circuit, and a second switching unit. The second AC input terminal receives a second AC power, and the second rectifier circuit rectifies the second AC power. The second switching unit includes a third terminal and a fourth terminal, with the third terminal connected to the second rectifier circuit and the fourth terminal connected to the second terminal of the first switching unit. The detection unit detects the first AC input terminal and the second AC input terminal and outputs a detection signal. The switching control module receives the detection signal and controls the conduction and cutoff of the first and second switching units according to the detection signal, so that one of the first and second power supply modules outputs a rectified voltage.

[0007] An embodiment of the present invention provides a power supply management method applicable to a power supply management module. The method includes the following steps: receiving first AC power at a first AC input terminal, and rectifying the first AC power using a first rectifier circuit. Receiving second AC power at a second AC input terminal, and rectifying the second AC power using a second rectifier circuit. Detecting the first and second AC input terminals using a detection unit and outputting a detection signal. A switching control module receives the detection signal and controls the on / off states of a first and second switching unit based on the detection signal, so that one of the first and second power supply modules outputs a rectified voltage.

[0008] Based on the above, the power management module and method provided in this embodiment of the invention, after receiving external AC power at the first AC input terminal or the second AC input terminal, rectify it into DC power with a lower voltage via a rectifier circuit. This allows the components of the subsequent processing circuit to withstand lower voltages or allows the selection of components with lower rated withstand voltage values. The integrated power conversion module of the power supply provided in this embodiment of the invention features a simple structure and small size. The advantages of the above embodiments allow the overall size of the power supply to be reduced, making it suitable for integration onto a single main circuit board. Attached Figure Description

[0009] Figure 1 This is a block diagram of a power supply system drawn according to an embodiment of the present invention;

[0010] Figure 2A This is a partial circuit diagram of the first and second power supply modules drawn according to an embodiment of the present invention;

[0011] Figure 2B This is a schematic diagram illustrating the operation of a power management module according to an embodiment of the present invention;

[0012] Figure 3 This is a block diagram of a first power supply module and a second power supply module system drawn according to an embodiment of the present invention;

[0013] Figure 4 This is a circuit block diagram of a power supply module drawn according to an embodiment of the present invention;

[0014] Figure 5A This is a circuit block diagram of an integrated power conversion module drawn according to an embodiment of the present invention;

[0015] Figure 5B This is a circuit diagram of an integrated power conversion module drawn according to an embodiment of the present invention;

[0016] Figure 6 This is an exploded perspective view of the integrated power conversion module according to an embodiment of the present invention;

[0017] Figure 7 This is a partial assembly diagram of the integrated power conversion module illustrated according to an embodiment of the present invention;

[0018] Figure 8 This is a combined diagram of an integrated power conversion module illustrated according to an embodiment of the present invention;

[0019] Figure 9A This is a circuit block diagram of an integrated power conversion module drawn according to an embodiment of the present invention;

[0020] Figure 9BThis is a circuit diagram of an integrated power conversion module drawn according to an embodiment of the present invention;

[0021] Figure 10 This is a flowchart illustrating a power supply management method based on an embodiment of the present invention;

[0022] Figure 11 This is a flowchart illustrating a power supply management method based on an embodiment of the present invention.

[0023] [Symbol Explanation]

[0024] 100: Power Supply

[0025] 101: Power Supply Management Module

[0026] 102: Power Supply Module

[0027] 103: First power supply module

[0028] 104: Second power supply module

[0029] 105: First AC input terminal

[0030] 106: First rectifier circuit

[0031] 107: First Switching Unit

[0032] 108: Second AC input terminal

[0033] 109: Second rectifier circuit

[0034] 110: Second Switching Unit

[0035] 111: Detection Unit

[0036] 112: Switching control module

[0037] 113: First end

[0038] 114: Second end

[0039] 115: Third End

[0040] 116: Fourth End

[0041] 117: First AC power

[0042] 118: Second AC power supply

[0043] 119: First Transistor

[0044] 120: Second transistor

[0045] 121: First diode

[0046] 122: Second diode

[0047] 123: Third transistor

[0048] 124: Fourth transistor

[0049] 125: Third Diode

[0050] 126: Fourth Diode

[0051] 1001: Main Circuit Board

[0052] 1061, 1091: Positive electrode

[0053] 1062, 1092: Negative electrode

[0054] 201: First Filter

[0055] 202: Second Filter

[0056] 301: First conversion circuit

[0057] 302: Second conversion circuit

[0058] 303: Integrated Power Conversion Module

[0059] 40: Transformer

[0060] 401: Primary winding

[0061] 402: First Power Module

[0062] 4021: Primary winding

[0063] 4022: First Synchronous Rectifier Unit

[0064] 4023: First Filtering Unit

[0065] 403: Second Power Module

[0066] 4031: Secondary winding

[0067] 4032: Second Synchronous Rectifier Unit

[0068] 4033: Second Filtering Unit

[0069] 404: Output control circuit

[0070] 4041: Controller

[0071] 4042: First Output Control Module

[0072] 4043: Second Output Control Module

[0073] 510: spool

[0074] 512: Conductive terminal

[0075] 513: Fasteners

[0076] 520: Primary winding

[0077] 530: Iron core components

[0078] 541a~541d: Power Module

[0079] 542: Circuit Board

[0080] 543: Conductive sheet

[0081] 544: Synchronous Rectifier Unit

[0082] 546: Filtering Unit

[0083] 548: Conductive plate

[0084] 5100: Main Body

[0085] 5101: First Channel

[0086] 5102: Winding section

[0087] 5104a~5104d: Receiving section

[0088] 5105: Bump

[0089] 5106: Slot

[0090] 5108: Spacer

[0091] 5109: Second Channel

[0092] 5110: Sidewall

[0093] 5300: Central Pillar

[0094] 5302, 5304: Side pillars

[0095] 5420: Placement Section

[0096] 5422: Sensing Unit

[0097] 5426, 5427: End

[0098] 5424: Center Hole

[0099] 5430: Gap

[0100] Vo': Power output terminal

[0101] C01, C02: Output capacitors

[0102] Rs: Sensing resistance

[0103] Vo: Power output terminal

[0104] 901: Current sensing unit

[0105] SW1: First output switch

[0106] SW2: Second output switch

[0107] v gs1 Voltage between the gate and source of the first transistor

[0108] v gs2 The voltage between the gate and source of the second transistor

[0109] v gs3 The voltage between the gate and source of the third transistor

[0110] v gs4 The voltage between the gate and source of the fourth transistor

[0111] T0~T5: Time points

[0112] Q1~Q4: Transistor switches

[0113] SR1~SR4: Gate

[0114] L1~L4: Inductors

[0115] S1001~S1003, S1101~S1103: Steps Detailed Implementation

[0116] The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of embodiments with reference to the accompanying drawings. The thickness or dimensions of the elements in the drawings are exaggerated, omitted, or generalized for the understanding and reading of those skilled in the art. The dimensions of each element are not exactly their actual dimensions and are not intended to limit the implementation of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments in size, without affecting the effects and objectives achieved by the invention, should still fall within the scope of the technical content disclosed in the present invention. The same reference numerals will be used to denote the same or similar elements in all the drawings. The terms "coupled" or "connected" as used in the following embodiments can refer to any direct or indirect connection means.

[0117] Figure 1 This is a block diagram of a power supply system drawn according to an embodiment of the present invention. Please refer to... Figure 1The power supply 100 includes a power management module 101 and a power supply module 102. The power management module 101 can receive a first AC power 117 and a second AC power 118 from an external source. The power management module 101 outputs a rectified voltage, and the power supply module 102 receives the rectified voltage output by the power management module 101 and outputs a converted voltage. Both the power management module 101 and the power supply module 102 are mounted on the main circuit board 1001.

[0118] The power management module 101 includes a first power supply module 103, a second power supply module 104, a detection unit 111, and a switching control module 112. The first power supply module 103 includes a first AC input terminal 105, a first rectifier circuit 106, and a first switching unit 107. The second power supply module 104 includes a second AC input terminal 108, a second rectifier circuit 109, and a second switching unit 110.

[0119] The first AC input terminal 105 of the first power supply module 103 can receive first AC power 117 from the outside, and the first rectifier circuit 106 rectifies the received first AC power 117. The first switching unit 107 includes a first terminal 113 and a second terminal 114, wherein the first terminal 113 is connected to the first rectifier circuit 106. The second AC input terminal 108 of the second power supply module 104 can receive second AC power 118 from the outside, and the second rectifier circuit 109 rectifies the received second AC power 118. The second switching unit 110 includes a third terminal 115 and a fourth terminal 116. The third terminal 115 is connected to the second rectifier circuit 109, and the fourth terminal 116 is connected to the second terminal 114 of the first switching unit 107.

[0120] Detection unit 111 detects the first AC input terminal 105 and the second AC input terminal 108, and outputs a detection signal. The detection signal indicates whether the first AC input terminal 105 is receiving first AC power 117 from an external source and whether the second AC input terminal 108 is receiving second AC power 118 from an external source. Switching control module 112 receives the aforementioned detection signal and controls the switching of the first switching unit 107 and the second switching unit 110 to either turn on or off, so that one of the first power supply module 103 and the second power supply module 104 outputs a rectified voltage.

[0121] The following is a detailed description of an embodiment of the power management method of the present invention, and how the various hardware components of the power management module 101 work together, with reference to the accompanying drawings. Figure 10 This is a flowchart illustrating a power supply management method based on an embodiment of the present invention. Figure 11 This is a flowchart illustrating a power supply management method according to an embodiment of the present invention.

[0122] In step S1001, a first AC current 117 is received from the outside via the first AC input terminal 105. A second AC current 118 is received from the outside via the second AC input terminal 108. A first rectifier circuit 106 rectifies the first AC current 117 received by the first AC input terminal 105. A second rectifier circuit 109 rectifies the second AC current 118 received by the second AC input terminal 108. In step S1002, a detection unit 111 detects the first AC input terminal 105 and the second AC input terminal 108, and outputs a detection signal indicating whether the first AC input terminal 105 has received the first AC current 117 from the outside and whether the second AC input terminal 108 has received the second AC current 118 from the outside. In this embodiment, the detection signal indicating that the first AC input terminal 105 has received the first AC current 117 indicates that the voltage of the first AC current 117 received by the detection unit 111 is within the normal range. Similarly, the detection signal indicates that the second AC input terminal 108 has received the second AC power 118, meaning that the detection unit 111 has detected that the voltage of the second AC power 118 received at the second AC input terminal 108 is within the normal range. In step S1003, the switching control module 112 receives the detection signal and controls the conduction and cutoff of the first switching unit 107 and the second switching unit 110 according to the detection signal, so that one of the first power supply module 103 and the second power supply module 104 outputs a rectified voltage.

[0123] In one embodiment of the present invention, step S1003 further includes steps S1101 to S1103. In step S1101, after receiving the detection signal, the switching control module 112 determines whether the detection signal indicates that the first AC input terminal 105 is receiving normal first AC power 117. In step S1102, in response to the detection signal indicating that the first AC input terminal 105 is receiving normal first AC power 117, the switching control module 112 controls the first switching unit 107 to be turned on and controls the second switching unit 110 to be turned off. If the detection signal indicates that the first AC input terminal 105 is not receiving normal first AC power 117, in step S1103, in response to the detection signal indicating that the second AC input terminal 108 is receiving normal second AC power 118, the switching control module 112 controls the first switching unit 107 to be turned off and controls the second switching unit 110 to be turned on.

[0124] In the architecture proposed in this embodiment, since the external AC power is received at the first AC input terminal 105 or the second AC input terminal 108, it is rectified into DC power with a lower voltage by the rectifier circuit. This allows the components of the subsequent processing circuit to withstand a lower voltage or allows the selection of components with a lower rated withstand voltage.

[0125] In one embodiment of the present invention, the switching control module 112 detects whether a special mode request transmitted from an external source is received. If the switching control module 112 detects a special mode request transmitted from an external source, it then determines whether the second AC input terminal 108 receives the second AC power 118 based on the detection signal. If the switching control module 112 determines that the second AC input terminal 108 receives the second AC power 118, it controls the first switching unit 107 to turn off and controls the second switching unit 110 to turn on, so that the second AC power 118 can provide power. In this embodiment, the first AC power 117 is AC mains power provided by the first power company, and the second AC power 118 is AC mains power provided by the second power company. The judgment module outside the power supply 100 continuously and automatically retrieves the real-time electricity prices of the AC mains power provided by the first and second power companies from the network. Once the judgment module determines that the price of the AC mains power provided by the second power company is cheaper, it transmits a special mode request to the switching control module 112 from the external source.

[0126] In one embodiment of the present invention, the first AC power 117 is AC mains power provided by the power company, and the second AC power 118 is a backup power source, such as AC power output from a diesel generator.

[0127] Figure 2A This is a partial circuit diagram of the first and second power supply modules according to an embodiment of the present invention. Please refer to... Figure 2A In this embodiment, the output terminal of the first rectifier circuit 106 includes a positive terminal 1061 and a negative terminal 1062. The first switching unit 107 includes a first transistor 119 and a second transistor 120. The first transistor 119 and the second transistor 120 are MOS field-effect transistors. The drain of the first transistor 119 is connected to the drain of the second transistor 120, and the source of the first transistor 119 is the first terminal 113 of the first switching unit 107, connected to the positive terminal 1061 of the first rectifier circuit 106. The source of the second transistor 120 is the second terminal 114 of the first switching unit 107. The first transistor 119 is connected in parallel with the first diode 121, and the source of the first transistor 119 is connected to the anode of the first diode 121, and the drain of the first transistor 119 is connected to the cathode of the first diode 121. The second transistor 120 is connected in parallel with the second diode 122, and the source of the second transistor 120 is connected to the anode of the second diode 122, and the drain of the second transistor 120 is connected to the cathode of the second diode 122.

[0128] The output terminal of the second rectifier circuit 109 includes a positive terminal 1091 and a negative terminal 1092. The second switching unit 110 includes a third transistor 123 and a fourth transistor 124, with the drain of the third transistor 123 connected to the drain of the fourth transistor 124. The source of the third transistor 123 is the third terminal 115 of the second switching unit 110, connected to the positive terminal 1091 of the second rectifier circuit 109. The source of the fourth transistor 124 is the fourth terminal 116 of the second switching unit 110. The third transistor 123 is connected in parallel with a third diode 125, with the source of the third transistor 123 connected to the anode of the third diode 125 and the drain of the third transistor 123 connected to the cathode of the third diode 125. The fourth transistor 124 is connected in parallel with the fourth diode 126, and the source of the fourth transistor 124 is connected to the anode of the fourth diode 126, and the drain of the fourth transistor 124 is connected to the cathode of the fourth diode 126.

[0129] The negative terminal 1062 of the first rectifier circuit 106 and the negative terminal 1092 of the second rectifier circuit 109 are conductors that directly form an electrical circuit.

[0130] With the above-described connection method, the first diode 121 connected in parallel with the first transistor 119 and the second diode 122 connected in parallel with the second transistor 120 can block the rectified voltage output when both the first transistor 119 and the second transistor 120 are off. The first diode 121 and the second diode 122 can also block reverse current. Similarly, the third diode 125 connected in parallel with the third transistor 123 and the fourth diode 126 connected in parallel with the fourth transistor 124 can block the rectified voltage output when both the third transistor 123 and the fourth transistor 124 are off. Likewise, the third diode 125 and the fourth diode 126 can also block reverse current.

[0131] In one embodiment of the present invention, the aforementioned first transistor 119, second transistor 120, third transistor 123 and fourth transistor 124 are MOS field-effect transistors.

[0132] In one embodiment of the present invention, the first switching unit 107 is connected to the negative terminal 1062 of the first rectifier circuit 106, and the second switching unit 110 is connected to the negative terminal 1092 of the second rectifier circuit 109. The positive terminal 1061 of the first rectifier circuit 106 and the positive terminal 1091 of the second rectifier circuit 109 are conductors that directly form an electrical circuit.

[0133] Figure 2B This is a schematic diagram illustrating the operation of a power management module according to an embodiment of the present invention. Please refer to [link / reference]. Figure 2A , Figure 2B, where v gs1 V represents the voltage between the gate and source of the first transistor 119. gs2 V represents the voltage between the gate and source of the second transistor 120. gs3 V represents the voltage between the gate and source of the third transistor 123. gs4 This represents the voltage between the gate and source of the fourth transistor 124. In this embodiment, before time point T0, both the first AC power supply 117 and the second AC power supply 118 are functioning normally. At this time, the switching control module 112 controls v. gs1 and v gs2 The high potential causes the first switching unit 107 to conduct, and the switching control module 112 controls v. gs3 and v gs4 The low potential causes the second switching unit 110 to be turned off. The first AC power supply 117 provides the energy required by the power supply module 102.

[0134] At time point T0, the detection unit 111 detects an abnormality at the first AC input terminal 105, such as no AC power being received or the voltage exceeding the normal range (in this embodiment, the operation is described using the example of no AC power being received). The detection unit 111 outputs a detection signal indicating that the first AC input terminal 105 is not receiving the first AC power 117 from the outside. The switching control module 112 receives the aforementioned detection signal and controls v based on the detection signal at time point T1. gs1 and vgs2 The low potential causes the first switching unit 107 to be turned off. At time T2, the switching control module 112 controls v. gs3 and v gs4 The high potential causes the second switching unit 110 to conduct, at which time the second AC power 118 provides the energy required by the power supply module 102. The time period from time point T1 to time point T2 is the dead time, which is used to prevent the first AC power 117 and the second AC power 118 from short-circuiting in the power management module 101 and causing line damage.

[0135] Between time points T2 and T3, the second AC power supply 118 provides the energy required by the power supply module 102. At time point T3, the detection unit 111 detects that the first AC power input terminal 105 has returned to normal and is receiving AC power from the outside. The detection unit 111 outputs a detection signal indicating that the first AC power input terminal 105 is receiving the first AC power 117 from the outside. The switching control module 112 receives the aforementioned detection signal and controls v at time point T4. gs3 and v gs4The low potential causes the second switching unit 110 to be turned off. At time point T5, the switching control module 112 controls v. gs1 and v gs2 The high potential causes the first switching unit 107 to conduct, at which time the first AC power 117 provides the energy required by the power supply module 102. The time period from time point T4 to time point T5 is the dead time, which is used to prevent the first AC power 117 and the second AC power 118 from short-circuiting in the power management module 101 and causing line damage.

[0136] Figure 3 This is a system block diagram of the first power supply module and the second power supply module, drawn according to an embodiment of the present invention. Please refer to... Figure 3 In this embodiment, the first power supply module 103 further includes a first filter 201, and the second power supply module 104 further includes a second filter 202. The first filter 201 is disposed between the first AC input terminal 105 and the first rectifier circuit 106, and the second filter 202 is disposed between the second AC input terminal 108 and the second rectifier circuit 109. The first filter 201 and the second filter 202 are used to reduce the electromagnetic interference of the first AC power 117 and the second AC power 118, respectively. In this embodiment, the first filter 201 and the second filter 202 can be passive filters or active filters, and the present invention is not limited thereto.

[0137] Figure 4 This is a circuit block diagram of a power supply module drawn according to an embodiment of the present invention. Please refer to... Figure 4In this embodiment, the power supply module 102 includes a first conversion circuit 301, a second conversion circuit 302, and an integrated power conversion module 303. The first conversion circuit 301 is connected to the second terminal 114 of the first switching unit 107 and the fourth terminal 116 of the second switching unit 110. The first conversion circuit 301 is used to convert the rectified voltage into a high DC voltage and adjust its power factor. In this embodiment, the first conversion circuit 301 can be a passive power factor correction circuit, an active power factor correction circuit, or a dynamic power factor correction circuit, and the present invention is not limited thereto. The second conversion circuit 302 is connected to the first conversion circuit 301 and is used to adjust the high DC voltage output by the first conversion circuit 301. In this embodiment, the second conversion circuit 302 can be an LLC resonant converter or a phase shift fullbridge converter.

[0138] Figure 5A This is a circuit block diagram of an integrated power conversion module drawn according to an embodiment of the present invention. Figure 5B This is a circuit diagram of an integrated power conversion module drawn according to an embodiment of the present invention. Please also refer to... Figure 5A , Figure 5B In this embodiment, the integrated power conversion module 303 includes a primary winding 401 and a first power module 402. The first power module 402 includes a primary winding 4021, a first synchronous rectification unit 4022, and a first filter unit 4023. The integrated power conversion module 303 includes a transformer 40, which includes the aforementioned primary winding 401 and primary winding 4021. The first synchronous rectification unit 4022 includes transistor switches Q1 and Q2. The source of transistor switch Q1 is connected to the source of transistor switch Q2, the drain of transistor switch Q1 is connected to one end of the primary winding 4021, and the drain of transistor switch Q2 is connected to the other end of the primary winding 4021. The gate SR1 of transistor switch Q1 and the gate SR2 of transistor switch Q2 can accept control voltages to control the conduction and cutoff of transistor switches Q1 and Q2. The first filter unit 4023 includes inductors L1 and L2. The drain of transistor switch Q1 is connected to inductor L1, and the drain of transistor switch Q2 is connected to inductor L2.

[0139] Figure 6 This is an exploded perspective view of the integrated power conversion module according to an embodiment of the present invention. Figure 7This is a partial assembly diagram of the integrated power conversion module according to an embodiment of the present invention. Figure 8 This is a combined diagram illustrating the integrated power conversion module according to an embodiment of the present invention. Please also refer to... Figure 5A , Figure 5B , Figure 6 , Figure 7 , Figure 8 The integrated power conversion module 303 of this embodiment includes a bobbin 510, at least one primary winding 520, an iron core element 530, and multiple power modules 541a to 541d. The primary winding 520 is one embodiment of the primary winding 401, and the power module 541a is one embodiment of the first power module 402. The structure of each component of the integrated power conversion module 303 will be described in detail below.

[0140] The spool 510 includes a main body 5100, a plurality of winding portions 5102, and a plurality of receiving portions 5104a to 5104d. The receiving portions 5104a to 5104d are arranged in parallel to each other. The number of winding portions 5102 and receiving portions 5104a to 5104d corresponds and they are arranged in an alternating manner on the main body 5100.

[0141] The main body 5100 also includes a first channel 5101 and a second channel 5109. The second channel 5109 is connected to the first channel 5101 and is approximately perpendicular to the first channel 5101.

[0142] In this embodiment, the winding spool 510 includes four receiving portions 5104a to 5104d, which are respectively disposed on opposite sides of the second channel 5109. Receiving portions 5104a and 5104b are located on one side of the second channel 5109, while receiving portions 5104c and 5104d are located on the other side of the second channel 5109. Winding portions 5102 are also disposed on both sides of the second channel 5109 and are arranged alternately with the receiving portions 5104a to 5104d.

[0143] Receiving portions 5104a to 5104d have a groove 5106 formed on one side adjacent to the power modules 541a to 541b, and the groove 5106 is connected to the first channel 5101. Receiving portions 5104a to 5104d have a sidewall 5110 on the other side away from the power modules 541a to 541b, wherein the sidewall 5110 closes the groove 5106.

[0144] Each of the receiving portions 5104a to 5104d has a protrusion 5105 extending downward from its bottom end on both sides. The extension direction of the protrusion 5105 is approximately perpendicular to the opening direction of the groove 5106. Multiple conductive terminals 512 are connected to the protrusion 5105 on the side of the receiving portions 5104a to 5104d away from the power modules 541a to 541d, and multiple fixing members 513 are connected to the protrusion 5105 on the side of the receiving portions 5104a to 5104d adjacent to the power modules 541a to 541d.

[0145] like Figure 7 As illustrated, the primary winding 520 is electrically connected to the conductive terminals 512, and starts from one of the conductive terminals 512, winding in an S-shaped manner around the winding portion 5102, ending at the other conductive terminal 512. As previously described, the primary winding 520 is one embodiment of the primary winding 401 of the integrated power conversion module 303.

[0146] The main body 5100 also includes a plurality of spacers 5108. The spacers 5108 are respectively disposed between the second channel 5109 and the two receiving parts 5104b and 5104c that are closest to the second channel 5109, for separating the second channel 5109 and the receiving parts 5104b and 5104c.

[0147] The core element 530 is sleeved on the outside of the winding spool 510 and partially passes through the first channel 5101. The core element 530 can be composed of two E-type cores, each E-type core including a central post 5300 and side posts 5302 and 5304 located on opposite sides of the central post 5300 and connected to the central post 5300. When the core element 530 is sleeved on the winding spool 510, the side posts 5302 and 5304 are located on the upper and lower sides of the winding spool 510 respectively, and the side posts of the two E-type cores abut against each other. The central post 5300 passes through the first channel 5101, and there is an air gap between the central posts 5300 of the two E-type cores. The air gap is formed in the second channel 5109 to achieve the effect of energy storage. It should be noted that the primary winding 520 is not wound on the main body 5100 at the position of the second channel 5109. Because the primary winding 520 avoids the air gap, it can effectively reduce eddy current losses.

[0148] Furthermore, when the core element 530 is mounted on the winding spool 510, there is a gas channel (not shown) between the side posts 5302 and 5304 of the core element 530 and the main body 5100 and the primary winding 520 wound on the winding portion 5102, allowing gas to circulate therethrough, thereby providing a good heat dissipation effect.

[0149] In application embodiments involving multiple power modules, power modules 541a-541b are arranged in parallel, and power modules 541c-541d are arranged in parallel. Power modules 541a-541d are arranged in a parallel manner. Each power module 541a-541d includes a circuit board 542, a synchronous rectification unit 544, and a filter unit 546. The synchronous rectification unit 544 of power module 541a is one embodiment of the first synchronous rectification unit 4022, and the filter unit 546 of power module 541a is one embodiment of the first filter unit 4023.

[0150] It should be noted that the present invention may also use only a single power module 541a, and the present invention is not limited to using multiple power modules.

[0151] The circuit board 542 includes a placement portion 5420 and a sensing portion 5422 connected to the placement portion 5420. Both the placement portion 5420 and the sensing portion 5422 have pre-installed copper foil traces (not shown) for electrical connection with the conductive sheet 543, the synchronous rectification unit 544, and the filter unit 546. The placement portion 5420 is generally rectangular in shape, and its bottom edge has an end 5426. The side edge of the placement portion 5420 has an end 5427 connected to the sensing portion 5422.

[0152] The sensing part 5422 has a central hole 5424, making its shape annular. The shape of the copper foil circuit formed on the sensing part 5422 can also be approximately annular, and it can transmit current to the synchronous rectification unit 544. The shape of the sensing part 5422 corresponds to the shape of the receiving parts 5104a to 5104d. When the sensing part 5422 is inserted into the slot 5106, the central hole 5424 corresponds to and is connected to the first channel 5101.

[0153] Each power module 541a-541d may also include a conductive sheet 543 attached to the copper foil circuitry of the sensing element 5422. The conductive sheet 543 has a shape that roughly corresponds to the sensing element 5422 and has a notch 5430, making its shape roughly C-shaped. The conductive sheet 543 may be made of, for example (but not limited to), tin-plated copper sheet to provide enhanced conductivity and heat conduction of the sensing element 5422.

[0154] In the integrated power conversion module 303 of this embodiment, the primary winding 520 wound around the winding portion 5102, the iron core element 530 sleeved on the winding spool 510, and the sensing portion 5422 and conductive sheet 543 inserted into the groove 5106 of the winding spool 510 constitute a primary winding 520 wound around the winding portion 5102, the iron core element 530 sleeved on the winding spool 510, and the sensing portion 5422 and conductive sheet 543 inserted into the groove 5106 of the winding spool 510. Figure 5B One embodiment of the transformer 40 is illustrated.

[0155] A synchronous rectification unit 544 is disposed on one side of the placement portion 5420 of the circuit board 542, and a filter unit 546 is disposed on the other side of the placement portion 5420 of the circuit board 542. The synchronous rectification unit 544 may, for example, be a synchronous rectification circuit composed of four metal-oxide-semiconductor field-effect transistors, wherein the synchronous rectification circuit can effectively reduce rectification losses. Alternatively, the synchronous rectification unit 544 may be, for example... Figure 5B The first synchronous rectification unit 4022 is illustrated. Power modules 541a-541d further include a conductive plate 548 disposed in the placement portion 5420 and located on the same side as the synchronous rectification unit 544. The filter unit 546 may be, for example, an inductor.

[0156] Furthermore, the surface of the circuit board 542 of the power module 541b with the filter unit 546 faces the surface of the circuit board 542 of the power module 541c with the filter unit 546; in other words, the filter units 546 of the two power modules 541b and 541c, which are located on both sides of the second channel 5109 and are closest to the second channel 5109, face each other.

[0157] Furthermore, one surface of the circuit board 542 of power module 541a with a synchronous rectification unit 544 faces the other surface of the circuit board 542 of power module 541b with a synchronous rectification unit 544 (not shown); in other words, the synchronous rectification units 544 of two adjacent power modules 541a and 541b (or 541c and 541d) located on either side of the second channel 5109 are arranged facing each other; thereby, the integrated power conversion module 303 can be compactly configured, thereby effectively reducing the overall size.

[0158] The integrated power conversion module 303 in this embodiment uses Figure 5B Circuit configuration Figures 6 to 8 The structural configuration shown achieves miniaturization and effectively reduces eddy current losses and switching losses.

[0159] Because the integrated power conversion module 303 of this embodiment can achieve miniaturization, it can be mounted on a main circuit board 1001. In this embodiment, the integrated power conversion module 303 is mounted on a main circuit board 1001, which is located at the bottom of the integrated power conversion module 303 (e.g., at the bottom). Figure 7(As illustrated). The fixing member 513 is used to support the integrated power conversion module 303 on the main circuit board 1001 to prevent the integrated power conversion module 303 from tilting due to the weight of the power modules 541a-541b. It should be noted that if the winding spool 510 is provided with both the fixing member 513 and the conductive terminal 512, the conductive terminal 512 can be provided at the bottom of the receiving part 5104a-5104d, the primary winding 520 is connected to the conductive terminal 512, and forms an electrical connection with the main circuit board 1001 through the conductive terminal 512; the fixing member 513 is provided at the bottom of the receiving part 5104a-5104d where the conductive terminal 512 is not provided, so as to support the integrated power conversion module 303 on the main circuit board 1001. If the primary winding 520 wound on the spool 510 is directly connected to the main circuit board 1001 (i.e., connected by a flying wire), then only the fixing member 513 needs to be provided at the bottom of the receiving parts 5104a to 5104d. However, the configuration and quantity of the aforementioned conductive terminals 512 and fixing members 513 can be adjusted according to actual needs.

[0160] It is worth mentioning that, as mentioned earlier, Figure 1 The power supply 100 shown in the figure receives external AC power at the first AC input terminal 105 or the second AC input terminal 108 and then rectifies it into DC power with a lower voltage through a rectifier circuit. This allows the overall size to be reduced and suitable for integration onto a single main circuit board 1001. Therefore, in one embodiment, the power supply 100 as a whole includes a first power supply module 103, a second power supply module 104, a detection unit 111, a switching control module 112, a first conversion circuit 301 and a second conversion circuit 302, and an integrated power conversion module 303, all of which are disposed on a single main circuit board 1001.

[0161] The integrated power conversion module 303 in this embodiment can supply multiple sets of DC power for subsequent integration (see below for details). Figure 9A , Figure 9B (as described above), and its secondary winding (copper foil lines and conductive sheet 543 formed on the sensing part 5422), synchronous rectification unit 544 and filter unit 546 are integrated on the circuit board 542 and combined with the winding spool 510 through plug-in method, thus having the characteristics of easy assembly and manufacturing and small size. It should be noted that the secondary winding of the copper foil lines and conductive sheet 543 formed on the sensing part 5422 on the power module 541a is an embodiment of the primary winding 4021.

[0162] Figure 9A This is a circuit block diagram of an integrated power conversion module drawn according to an embodiment of the present invention. Figure 9B This is a circuit diagram of an integrated power conversion module drawn according to an embodiment of the present invention. Please also refer to... Figure 6 , Figure 7 , Figure 8 , Figure 9A , Figure 9B The circuit block diagram of the integrated power conversion module 303 in this embodiment is compared to... Figure 5A It also includes a second power module 403 and an output control circuit 404. The structure of the second power module 403 is the same as that of the first power module 402. The second power module 403 includes a second secondary winding 4031, a second synchronous rectification unit 4032, and a second filter unit 4033. The integrated power conversion module 303 includes a transformer 40, which in this embodiment includes the aforementioned primary winding 401, first secondary winding 4021, and second secondary winding 4031. The second synchronous rectification unit 4032 includes transistor switches Q3 and Q4. The source of transistor switch Q3 is connected to the source of transistor switch Q4, the drain of transistor switch Q3 is connected to one end of the second secondary winding 4031, and the drain of transistor switch Q4 is connected to the other end of the second secondary winding 4031. The gate SR3 of transistor switch Q3 and the gate SR4 of transistor switch Q4 can accept control voltages to control the conduction and cutoff of transistor switches Q3 and Q4. The second filter unit 4033 includes inductors L3 and L4. The drain of transistor switch Q3 is connected to inductor L3, and the drain of transistor switch Q4 is connected to inductor L4.

[0163] It should be noted that, in this embodiment, the output control circuit 404 is disposed on the main circuit board 1001. The primary winding 401 is implemented as follows: Figure 7 The primary winding 520, the first power module 402, and the second power module 403 are respectively implemented as follows: Figure 6 , Figure 7 , Figure 8 Power modules 541a and 541b. The first secondary winding 4021 is implemented as the secondary winding of the copper foil circuit and conductive sheet 543 formed on the sensing part 5422 of power module 541a; the second secondary winding 4031 is implemented as the secondary winding of the copper foil circuit and conductive sheet 543 formed on the sensing part 5422 of power module 541b. The first synchronous rectification unit 4022 is implemented as the synchronous rectification unit 544 of power module 541a, and the first filtering unit 4023 is implemented as the filtering unit 546 of power module 541a; the second synchronous rectification unit 4032 is implemented as the synchronous rectification unit 544 of power module 541b, and the second filtering unit 4033 is implemented as the filtering unit 546 of power module 541b. In this embodiment, the first power module 402 (implemented as...) Figure 6 , 7 8 power module 541a) and second power module 403 (implemented as follows) Figure 6 , Figure 7 , Figure 8Power module 541b) is correspondingly disposed in different slots 5106 of the main body 5100 to sense the primary winding 401 (implemented as follows). Figure 7 Primary winding 520). First power module 402 (implemented as follows) Figure 6 , Figure 7 , Figure 8 The output terminal of power module 541a) is connected to the second power module 403 (implemented as follows). Figure 6 , Figure 7 , Figure 8 The output terminal of power module 541b) is as follows Figure 9B The diagram shows a parallel connection.

[0164] The output control circuit 404 includes a controller 4041 and a first output control module 4042 and a second output control module 4043 connected to the controller 4041. The first output control module 4042 is used to control the on and off of the output power of the first power module 402, and the second output control module 4043 is used to control the on and off of the output power of the second power module 403. Figure 9B As illustrated, in this embodiment, the first output control module 4042 includes a first output switch SW1, and the second output control module 4043 includes a second output switch SW2.

[0165] The output control circuit 404 also includes output capacitors C01 and C02, a power output terminal Vo', a sensing resistor Rs, a power supply output terminal Vo, and a current sensing unit 901. Since the power supply module 102 is configured to provide different power outputs to meet the power requirements of the electronic device, the controller 4041 receives a current sensing signal from the current sensing unit 901 representing the current flowing through the sensing resistor Rs to measure the power required by the electronic device. Based on the measured power required by the electronic device, the controller 4041 sets at least one of the first synchronous rectification unit 4022 and the second synchronous rectification unit 4032, or at least one of the first output switch SW1 and the second output switch SW2, to a conducting state to deliver the power required by the electronic device to the electronic device. When the first synchronous rectifier unit 4022 and the second synchronous rectifier unit 4032 are in the ON state, the electrical energy coupled to the primary winding 4021 and the secondary winding 4031 is conducted to the first synchronous rectifier unit 4022 and the second synchronous rectifier unit 4032, and the synchronous rectification procedure is executed. Conversely, when the first synchronous rectifier unit 4022 and the second synchronous rectifier unit 4032 are in the OFF state, the electrical energy transmitted to the primary winding 401 cannot be conducted to the primary winding 4021 and the secondary winding 4031, and the synchronous rectification procedure is not executed. In addition, when the first output switch SW1 and the second output switch SW2 are in the ON state, the first output switch SW1 and the second output switch SW2 are turned on, and the synchronously rectified electrical energy is transmitted to the output capacitors C01 and C02, as well as the power output terminal Vo' and the power supply output terminal Vo. Conversely, when the first output switch SW1 and the second output switch SW2 are in a non-conducting state, the first output switch SW1 and the second output switch SW2 are turned off, and the synchronously rectified electrical energy cannot be transmitted to the output capacitors C01 and C02, as well as the power output terminal Vo' and the power supply output terminal Vo.

[0166] In this embodiment, the output control circuit 404 is disposed on the main circuit board 1001 and is connected to the first power module 402 and the second power module 403 via lines on the main circuit board 1001. The output control circuit 404 is also connected to the switching control module 112 in the power management module 101 via lines on the main circuit board 1001 for communication. The controller 4041 communicates with the first power module 402 (implemented as follows). Figure 6 The first placement section of the power module 541a shown in the figure (implemented as follows) Figure 6The bottom edge of the power module 541a (5420) shown in the illustration is connected to the first synchronous rectification unit 4022 (implemented as follows). Figure 6 The illustrated power module 541a has gates SR1 and SR2 of the synchronous rectification unit 544. The controller 4041 communicates with the second power module 403 (implemented as follows). Figure 6 The second placement section of the power module 541b shown in the figure (implemented as follows) Figure 6 The bottom edge of the placement portion 5420 of the power module 541b shown is provided with end 5426, which is connected to the gates SR3 and SR4 of the second synchronous rectification unit 4032 (synchronous rectification unit 544 of power module 541b).

[0167] Based on the above, the power management module and method provided in this embodiment of the invention, after receiving external AC power at the first AC input terminal or the second AC input terminal, rectify it into DC power with a lower voltage via a rectifier circuit. This allows the components of the subsequent processing circuit to withstand lower voltages or allows the selection of components with lower rated withstand voltage values. The integrated power conversion module of the power supply provided in this embodiment of the invention features a simple structure and small size. The advantages of the above embodiments allow the overall size of the power supply to be reduced, making it suitable for integration onto a single main circuit board 1001.

Claims

1. A power supply, characterized in that, Include: The power management module outputs rectified voltage; as well as The power supply module receives the rectified voltage and outputs the converted voltage; The power supply management module includes: The first power supply module includes: a first AC input terminal for receiving first AC power; a first rectifier circuit for rectifying the first AC power; and a first switching unit including a first terminal and a second terminal, wherein the first terminal is connected to the first rectifier circuit. The second power supply module includes: a second AC input terminal for receiving second AC power; a second rectifier circuit for rectifying the second AC power; and a second switching unit including a third terminal and a fourth terminal, wherein the third terminal is connected to the second rectifier circuit and the fourth terminal is connected to the second terminal of the first switching unit. The detection unit detects the first AC input terminal and the second AC input terminal, and outputs a detection signal; and, A switching control module receives the detection signal and controls the conduction and cutoff of the first switching unit and the second switching unit according to the detection signal, so that the first power supply module and the second power supply module output the rectified voltage; wherein, the first switching unit includes a first transistor and a second transistor, the drain of the first transistor is connected to the drain of the second transistor, the source of the first transistor is the first terminal of the first switching unit, and the source of the second transistor is the second terminal of the first switching unit; the second switching unit includes a third transistor and a fourth transistor, the drain of the third transistor is connected to the drain of the fourth transistor, the source of the third transistor is the third terminal of the second switching unit, and the source of the fourth transistor is the fourth terminal of the second switching unit, wherein the source of the first transistor is connected to the anode of the first diode, the drain of the first transistor is connected to the cathode of the first diode, the source of the second transistor is connected to the anode of the second diode, and the drain of the second transistor is connected to the cathode of the second diode, so as to block the output of the rectified voltage when both the first transistor and the second transistor are cut off.

2. The power supply according to claim 1, characterized in that, The power supply module includes: A first conversion circuit is connected to the second terminal of the first switching unit and the fourth terminal of the second switching unit. The first conversion circuit is used to convert the rectified voltage into a DC high voltage and adjust its power factor. A second conversion circuit, connected to the first conversion circuit, is used to regulate the DC high voltage; and The integrated power conversion module includes: The primary winding is connected to the second conversion circuit and receives the regulated DC high voltage. A first power module is a pluggable or assembleable detachable module. The first power module includes a first circuit board, which includes a first placement portion and a first sensing portion. The first placement portion includes a fifth terminal and a sixth terminal. The fifth terminal is connected to the first sensing portion, and the sixth terminal is electrically connected to a main circuit board. The first sensing portion includes a first central hole. A first primary winding is disposed on the first sensing portion. A first synchronous rectification unit is disposed on the first circuit board and receives a first output voltage from the first primary winding. The iron core is inserted through the first central hole.

3. The power supply according to claim 2, characterized in that, The first power supply module, the second power supply module, the detection unit, the switching control module, the first conversion circuit, and the second conversion circuit are all disposed on the main circuit board.

4. The power supply according to claim 2, characterized in that, The second conversion circuit is an LLC resonant converter.

5. The power supply according to claim 2, characterized in that, The second conversion circuit is a phase-shift full-bridge converter.

6. The power supply according to claim 2, characterized in that, The power supply module further includes a second power module, which is a pluggable or assembleable detachable module. The second power module includes a second circuit board, which includes a second placement part and a second sensing part. The second placement part includes a seventh terminal and an eighth terminal. The seventh terminal is connected to the second sensing part, and the eighth terminal is connected to the main circuit board. The second sensing part includes a second central hole. A second secondary winding is disposed on the second sensing part. A second synchronous rectification unit is disposed on the second circuit board and receives the second output voltage of the second secondary winding. The first power module and the second power module are disposed on different sides of the primary winding, and the output terminals of the first power module and the second power module are connected in parallel.

7. The power supply according to claim 6, characterized in that, The power supply module also includes an output control circuit, which is disposed on the main circuit board. The output control circuit is connected to the power output terminal. The output control circuit is connected to the first synchronous rectification unit through the first placement part and the second placement part is connected to the second synchronous rectification unit.

8. The power supply according to claim 7, characterized in that, The output control circuit includes a controller and a first output control module and a second output control module connected to the controller. The first output control module is used to control the on and off of the first power module, and the second output control module is used to control the on and off of the second power module.

9. The power supply according to claim 8, characterized in that, The first output control module includes a first output switch for controlling the on and off states of the first power module; the second output control module includes a second output switch for controlling the on and off states of the second power module.

10. The power supply according to claim 1, characterized in that, In response to the detection signal indicating that the first AC input terminal receives the first AC power, the switching control module controls the first switching unit to turn on and controls the second switching unit to turn off; in response to the detection signal indicating that the first AC input terminal does not receive the first AC power and the second AC input terminal receives the second AC power, the switching control module controls the first switching unit to turn off and controls the second switching unit to turn on.

11. The power supply according to claim 1, characterized in that, The output terminal of the first rectifier circuit includes a positive terminal and a negative terminal. In response to the first switching unit being connected to the positive terminal of the output terminal of the first rectifier circuit, the negative terminal of the output terminal of the first rectifier circuit is a conductor directly forming an electrical circuit; in response to the first switching unit being connected to the negative terminal of the output terminal of the first rectifier circuit, the positive terminal of the output terminal of the first rectifier circuit is a conductor directly forming an electrical circuit.

12. The power supply according to claim 1, characterized in that, The first power supply module further includes a first filter disposed between the first AC input terminal and the first rectifier circuit, and the second power supply module further includes a second filter disposed between the second AC input terminal and the second rectifier circuit. The first filter is used to reduce the electromagnetic interference of the first AC power and the second filter is used to reduce the electromagnetic interference of the second AC power.

13. The power supply according to claim 1, characterized in that, In response to the switching control module receiving a special mode request and the second AC input terminal receiving the second AC power, the switching control module controls the first switching unit to turn off and controls the second switching unit to turn on according to the special mode request.

14. A power supply management module, characterized in that, Include: The first power supply module includes: a first AC input terminal for receiving first AC power; a first rectifier circuit for rectifying the first AC power; and a first switching unit including a first terminal and a second terminal, wherein the first terminal is connected to the first rectifier circuit. The second power supply module includes: a second AC input terminal for receiving second AC power; A second rectifier circuit rectifies the second alternating current; and a second switching unit includes a third terminal and a fourth terminal, wherein the third terminal is connected to the second rectifier circuit and the fourth terminal is connected to the second terminal of the first switching unit. The detection unit detects the first AC input terminal and the second AC input terminal, and outputs a detection signal; as well as, A switching control module receives the detection signal and controls the conduction and cutoff of the first switching unit and the second switching unit according to the detection signal, so that one of the first power supply module and the second power supply module outputs a rectified voltage; wherein, the first switching unit includes a first transistor and a second transistor, a drain of the first transistor is connected to the drain of the second transistor, the source of the first transistor is the first terminal of the first switching unit, and the source of the second transistor is the second terminal of the first switching unit; the second switching unit includes a third transistor and a fourth transistor, a drain of the third transistor is connected to the drain of the fourth transistor, the source of the third transistor is the third terminal of the second switching unit, and the source of the fourth transistor is the fourth terminal of the second switching unit, wherein the source of the first transistor is connected to the anode of the first diode, the drain of the first transistor is connected to the cathode of the first diode, the source of the second transistor is connected to the anode of the second diode, and the drain of the second transistor is connected to the cathode of the second diode, so as to block the rectified voltage output when both the first transistor and the second transistor are cut off.

15. The power supply management module according to claim 14, characterized in that, In response to the detection signal indicating that the first AC input terminal receives the first AC power, the switching control module controls the first switching unit to turn on and controls the second switching unit to turn off; in response to the detection signal indicating that the first AC input terminal does not receive the first AC power and the second AC input terminal receives the second AC power, the switching control module controls the first switching unit to turn off and controls the second switching unit to turn on.

16. A power supply management method, characterized in that, Applicable to a power supply management module, the power supply management module comprising: The first power supply module includes: a first AC input terminal; a first rectifier circuit; and a first switching unit, including a first terminal and a second terminal, wherein the first terminal is connected to the first rectifier circuit. as well as The second power supply module includes: a second AC input terminal; a second rectifier circuit; and a second switching unit, including a third terminal and a fourth terminal, wherein the third terminal is connected to the second rectifier circuit, and the fourth terminal is connected to the second terminal of the first switching unit; wherein the first switching unit includes a first transistor and a second transistor, a drain of the first transistor is connected to the drain of the second transistor, a source of the first transistor is the first terminal of the first switching unit, and a source of the second transistor is the second terminal of the first switching unit; the second switching unit includes a third transistor and a fourth transistor, a drain of the third transistor is connected to the drain of the fourth transistor, a source of the third transistor is the third terminal of the second switching unit, and a source of the fourth transistor is the fourth terminal of the second switching unit, wherein the source of the first transistor is connected to the anode of a first diode, the drain of the first transistor is connected to the cathode of the first diode, the source of the second transistor is connected to the anode of a second diode, and the drain of the second transistor is connected to the cathode of the second diode; The power supply management method includes the following steps: The first AC power is received from the first AC input terminal, and the first AC power is rectified by the first rectifier circuit. The second AC power is received from the second AC input terminal and rectified by the second rectifier circuit. The detection unit detects the first AC input terminal and the second AC input terminal, and outputs a detection signal; and, The switching control module receives the detection signal and controls the first and second transistors of the first switching unit and the third and fourth transistors of the second switching unit to turn on and off according to the detection signal, so that one of the first power supply module and the second power supply module outputs rectified voltage.

17. The power supply management method according to claim 16, characterized in that, The step of receiving the detection signal by the switching control module and controlling the first switching unit and the second switching unit to be turned on and off according to the detection signal so that one of the first power supply module and the second power supply module outputs the rectified voltage includes: in response to the detection signal indicating that the first AC input terminal receives normal first AC power, the switching control module controls the first switching unit to be turned on and controls the second switching unit to be turned off. In response to the detection signal indicating that the first AC input terminal is not receiving normal first AC power and the second AC input terminal is receiving normal second AC power, the switching control module controls the first switching unit to turn off and controls the second switching unit to turn on.

18. The power supply management method according to claim 16, characterized in that, The power supply management method further includes: in response to the switching control module receiving a special mode request and the second AC input terminal receiving the second AC power, the switching control module controls the first switching unit to turn off and controls the second switching unit to turn on according to the special mode request.

Images