A rectifier circuit with low losses
By employing a rectifier circuit designed with field-effect transistors and MOS detection and driving circuits, the problem of high loss in traditional diode rectifier circuits is solved, achieving low-loss and high-efficiency rectification, which is suitable for small-size, high-current applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JINGJIU TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional diode rectifier circuits suffer from high losses, narrow frequency range, large forward voltage drop, high heat generation, and large product size, making them difficult to meet the needs of low-voltage, high-current applications.
The rectifier circuit, designed with field-effect transistors and MOS detection and driving circuits, combined with a filter circuit, reduces rectification losses through the low on-resistance of the field-effect transistors and synchronous rectification technology.
It improves the conversion efficiency of the circuit, reduces losses and heat generation, is suitable for small-size, high-current applications, has a wide frequency range, adapts to changes in generator output frequency, and improves system conversion efficiency.
Smart Images
Figure CN224473221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rectifier circuit technology, and more specifically, to a rectifier circuit with low loss. Background Technology
[0002] Traditional diode rectifier circuits are simple in structure, highly reliable, and widely used. However, with the increasing demand for power, the requirements for rectifier circuits are also becoming more stringent. The losses caused by using traditional diode rectification methods are increasing dramatically, which also leads to increased temperature rise of the rectifier diodes, increased heat dissipation requirements, and a decrease in efficiency.
[0003] Traditional diode rectifier circuits have several drawbacks: a narrow operating frequency range, a large forward voltage drop, high losses and high heat generation, and a relatively large product size. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a rectifier circuit with low loss, which effectively reduces the loss caused by rectification. This circuit is suitable for low-voltage and high-current application environments.
[0005] This utility model achieves its purpose through the following technical solution:
[0006] A low-loss rectifier circuit is characterized by comprising: an electrically excited alternator and a power converter, wherein the power converter includes a rectifier circuit; the electrically excited alternator includes a generator winding 1 and a generator winding 2; the rectifier circuit includes field-effect transistors Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, and Q12; the U-line of the generator winding 1 is electrically connected to a resistor R8, a capacitor C1, pin 3 of the field-effect transistor Q1, and pin 2 of the field-effect transistor Q2; the V-line of the generator winding 1 is electrically connected to a resistor R9, a capacitor C2, and pin 3 of the field-effect transistor Q3. Pin 3 and pin 2 of transistor Q4; the W line of generator winding 1 is electrically connected to resistor R10, capacitor C3, pin 3 of transistor Q5, and pin 2 of transistor Q6; the U1 line of generator winding 2 is electrically connected to resistor R12, capacitor C4, pin 3 of transistor Q7, and pin 2 of transistor Q8; the V1 line of generator winding 2 is electrically connected to resistor R11, capacitor C5, pin 3 of transistor Q9, and pin 2 of transistor Q10; the W1 line of generator winding 2 is electrically connected to resistor R7, capacitor C6, pin 3 of transistor Q11, and pin 2 of transistor Q12.
[0007] As a further limitation of this technical solution, pin 1 of transistor Q1 is electrically connected to the other end of resistor R8 and capacitor C1; pin 1 of transistor Q1 is electrically connected to one end of resistor R1; pin 1 of transistor Q2 is electrically connected to one end of resistor R13, resistor R19, and capacitor C7; the other end of resistor R19, capacitor C7, and pin 3 of transistor Q2 are grounded; pin 1 of transistor Q3 is electrically connected to the other end of resistor R9 and capacitor C2; pin 1 of transistor Q3 is electrically connected to one end of resistor R2; and pin 1 of transistor Q4 is electrically connected to resistor R14. One end of resistor R23 and capacitor C8; the other end of resistor R23, capacitor C8, and pin 3 of transistor Q4 are grounded; pin 1 of transistor Q5 is electrically connected to the other end of resistor R10 and capacitor C3; pin 1 of transistor Q5 is electrically connected to one end of resistor R3; pin 1 of transistor Q6 is electrically connected to one end of resistor R15, resistor R20, and capacitor C9; the other end of resistor R20, capacitor C9, and pin 3 of transistor Q6 are grounded; pin 1 of transistor Q7 is electrically connected to the other end of resistor R12 and capacitor C4; and pin 3 of transistor Q1... Pin 1 is electrically connected to one end of resistor R4. Pin 1 of transistor Q8 is electrically connected to one end of resistor R16, resistor R21, and capacitor C10. The other ends of resistor R21, capacitor C10, and pin 3 of transistor Q8 are grounded. Pin 1 of transistor Q9 is electrically connected to the other end of resistor R11 and capacitor C5. Pin 1 of transistor Q9 is electrically connected to one end of resistor R5. Pin 1 of transistor Q10 is electrically connected to one end of resistor R17, resistor R24, and capacitor C11. The other ends of resistor R24, capacitor C11, and pin 3 of transistor Q10 are grounded. Pin 1 of transistor Q11 is electrically connected to the other end of resistor R7 and capacitor C6. Pin 1 of transistor Q1 is electrically connected to one end of resistor R6. Pin 1 of transistor Q12 is electrically connected to one end of resistor R18, resistor R22 and capacitor C12. The other end of resistor R22, capacitor C12 and pin 3 of transistor Q12 are grounded. Pin 2 of transistor Q1, pin 2 of transistor Q3, pin 2 of transistor Q5, pin 2 of transistor Q7, pin 2 of transistor Q9 and pin 2 of transistor Q11 are electrically connected to the power supply.
[0008] As a further limitation of this technical solution, the power converter also includes a MOS detection drive circuit, which includes chips U1, U2, U3, U4, U5, U6, U7, U8, U9, U10, U11, and U12. The U-line of the generator winding 1 is electrically connected to pins 1, 3, and 7 of chip U1 and pin 4 of chip U7. The other end of resistor R1 is electrically connected to pin 8 of chip U1. The other end of resistor R13 is electrically connected to pin 8 of chip U7. The V-line of the generator winding 1 is electrically connected to pins 1, 3, and 7 of chip U2 and pin 4 of chip U8. The other end of resistor R2 is electrically connected to pin 8 of chip U2. The other end of resistor R14 is electrically connected to pin 8 of chip U8. The W-line of the generator winding 1 is electrically connected to pins 1, 3, and 7 of chip U3 and pin 4 of chip U9. The other end of resistor R3 is electrically connected to pins 1, 3, and 7 of chip U3 and pin 4 of chip U9. The resistor R15 is electrically connected to pin 8 of chip U3. The other end of the resistor R15 is electrically connected to pin 8 of chip U9. The U1 line of generator winding 2 is electrically connected to pins 1, 3, and 7 of chip U4 and pin 4 of chip U10. The other end of the resistor R4 is electrically connected to pin 8 of chip U4. The other end of the resistor R16 is electrically connected to pin 8 of chip U10. The V1 line of generator winding 2 is electrically connected to pins 1, 3, and 7 of chip U5 and pin 4 of chip U11. The other end of the resistor R5 is electrically connected to pin 8 of chip U5. The other end of the resistor R17 is electrically connected to pin 8 of chip U11. The W1 line of generator winding 2 is electrically connected to pins 1, 3, and 7 of chip U6 and pin 4 of chip U12. The other end of the resistor R6 is electrically connected to pin 8 of chip U6. The other end of the resistor R18 is electrically connected to pin 8 of chip U12.
[0009] As a further limitation of this technical solution, pins 1, 3, and 7 of chip U1 and pin 4 of chip U7 are electrically connected to pins 5 and 6 of connector P1, respectively; pin 8 of chip U1 is electrically connected to pins 3 and 4 of connector P1; pin 8 of chip U7 is electrically connected to pins 7 and 8 of connector P1; pins 1, 3, and 7 of chip U2 and pin 4 of chip U8 are electrically connected to pins 5 and 6 of connector P2, respectively; pin 8 of chip U2 is electrically connected to pins 3 and 4 of connector P2; pin 8 of chip U8 is electrically connected to pins 7 and 8 of connector P2; pins 1, 3, and 7 of chip U3 and pin 4 of chip U9 are electrically connected to pins 5 and 6 of connector P3, respectively; pin 8 of chip U3 is electrically connected to pins 3 and 4 of connector P3; and pin 8 of chip U9 is electrically connected to pins 5 and 6 of connector P3. 7 and 8, pins 1, 3, and 7 of chip U4 and pin 4 of chip U10 are electrically connected to pins 5 and 6 of connector P4, pin 8 of chip U4 is electrically connected to pins 3 and 4 of connector P4, pin 8 of chip U10 is electrically connected to pins 7 and 8 of connector P4, pins 1, 3, and 7 of chip U5 and pin 4 of chip U11 are electrically connected to pins 5 and 6 of connector P5, pin 8 of chip U5 is electrically connected to pins 3 and 4 of connector P5, pin 8 of chip U11 is electrically connected to pins 7 and 8 of connector P5, pins 1, 3, and 7 of chip U6 and pin 4 of chip U12 are electrically connected to pins 5 and 6 of connector P6, pin 8 of chip U6 is electrically connected to pins 3 and 4 of connector P6, and pin 8 of chip U12 is electrically connected to pins 7 and 8 of connector P6.
[0010] As a further limitation of this technical solution, the power converter also includes a filter circuit, which includes capacitors E4, E5, E6, and E7. One end of each of the capacitors E4, E5, E6, and E7 is electrically connected to the power supply, and the other end of each of the capacitors E4, E5, E6, and E7 is grounded.
[0011] As a further limitation of this technical solution, the power supply is DC28V.
[0012] Compared with related technologies, the low-loss rectifier circuit provided by this utility model has the following beneficial effects:
[0013] This invention provides a low-loss rectifier circuit using a high-current field-effect transistor (FET) with a low on-resistance of only 0.7mΩ. This circuit improves conversion efficiency, reduces losses, and contributes to smaller product size. Advantages of this circuit include: a wide operating frequency range (from tens of hertz to tens of kilohertz), low on-state voltage drop, low loss, high efficiency, and suitability for small-size, high-current applications.
[0014] This circuit is used in vehicle-mounted power take-off (PTO) generators. When used in conjunction with a generator, it can effectively improve the system's conversion efficiency, reduce circuit losses and heat generation, and has the function of synchronous rectification to adapt to large variations in the generator's output frequency, ranging from tens of hertz to thousands of hertz. Attached Figure Description
[0015] Figure 1 This is the circuit schematic diagram of this utility model.
[0016] Figure 2 This is a schematic diagram of the rectifier circuit of this utility model.
[0017] Figure 3 The principle of the MOS detection drive circuit of this utility model Figure 1 .
[0018] Figure 4 The principle of the MOS detection drive circuit of this utility model Figure 2 .
[0019] Figure 5 This is a schematic diagram of the low-end auxiliary power supply of this utility model. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] A low-loss rectifier circuit includes: an electrically excited alternator and a power converter, wherein the power converter includes a rectifier circuit, the electrically excited alternator includes a generator winding 1 and a generator winding 2; the rectifier circuit includes field-effect transistors Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, and Q12; the U-line of the generator winding 1 is electrically connected to a resistor R8, a capacitor C1, pin 3 of the field-effect transistor Q1, and pin 2 of the field-effect transistor Q2, and the V-line of the generator winding 1 is electrically connected to a resistor R9, a capacitor C2, and pin 3 of the field-effect transistor Q3. 3 and pin 2 of transistor Q4; the W line of generator winding 1 is electrically connected to resistor R10, capacitor C3, pin 3 of transistor Q5 and pin 2 of transistor Q6; the U1 line of generator winding 2 is electrically connected to resistor R12, capacitor C4, pin 3 of transistor Q7 and pin 2 of transistor Q8; the V1 line of generator winding 2 is electrically connected to resistor R11, capacitor C5, pin 3 of transistor Q9 and pin 2 of transistor Q10; the W1 line of generator winding 2 is electrically connected to resistor R7, capacitor C6, pin 3 of transistor Q11 and pin 2 of transistor Q12.
[0022] Pin 1 of transistor Q1 is electrically connected to the other end of resistor R8 and capacitor C1. Pin 1 of transistor Q1 is electrically connected to one end of resistor R1. Pin 1 of transistor Q2 is electrically connected to one end of resistor R13, resistor R19, and capacitor C7. The other ends of resistor R19, capacitor C7, and pin 3 of transistor Q2 are grounded. Pin 1 of transistor Q3 is electrically connected to the other end of resistor R9 and capacitor C2. Pin 1 of transistor Q3 is electrically connected to one end of resistor R2. Pin 1 of transistor Q4 is electrically connected to resistor R14, resistor R23, and capacitor C8. One end of the resistor R23, the other end of the capacitor C8, and pin 3 of the transistor Q4 are grounded. Pin 1 of the transistor Q5 is electrically connected to the other end of the resistor R10 and the capacitor C3. Pin 1 of the transistor Q5 is electrically connected to one end of the resistor R3. Pin 1 of the transistor Q6 is electrically connected to one end of the resistor R15, the resistor R20, and the capacitor C9. The other end of the resistor R20, the capacitor C9, and pin 3 of the transistor Q6 are grounded. Pin 1 of the transistor Q7 is electrically connected to the other end of the resistor R12 and the capacitor C4. Pin 1 of the transistor Q1 is electrically connected to... One end of resistor R4 is electrically connected to pin 1 of transistor Q8, which is connected to one end of resistors R16, R21, and capacitor C10. The other ends of resistor R21, capacitor C10, and pin 3 of transistor Q8 are grounded. Pin 1 of transistor Q9 is electrically connected to the other end of resistor R11 and capacitor C5, and pin 1 of transistor Q9 is electrically connected to one end of resistor R5. Pin 1 of transistor Q10 is electrically connected to one end of resistors R17, R24, and capacitor C11. The other ends of resistor R24, capacitor C11, and pin 3 of transistor Q10 are grounded. Pin 1 of transistor Q11 is electrically connected to the other end of resistor R7 and capacitor C6. Pin 1 of transistor Q1 is electrically connected to one end of resistor R6. Pin 1 of transistor Q12 is electrically connected to one end of resistor R18, resistor R22 and capacitor C12. The other end of resistor R22, capacitor C12 and pin 3 of transistor Q12 are grounded. Pin 2 of transistor Q1, pin 2 of transistor Q3, pin 2 of transistor Q5, pin 2 of transistor Q7, pin 2 of transistor Q9 and pin 2 of transistor Q11 are electrically connected to the power supply.
[0023] The power converter further includes a MOS detection and driving circuit, which includes chips U1, U2, U3, U4, U5, U6, U7, U8, U9, U10, U11, and U12. The U-line of the generator winding 1 is electrically connected to pins 1, 3, and 7 of chip U1 and pin 4 of chip U7. The other end of resistor R1 is electrically connected to pin 8 of chip U1. The other end of resistor R13 is electrically connected to pin 8 of chip U7. The V-line of the generator winding 1 is electrically connected to pins 1, 3, and 7 of chip U2 and pin 4 of chip U8. The other end of resistor R2 is electrically connected to pin 8 of chip U2. The other end of resistor R14 is electrically connected to pin 8 of chip U8. The W-line of the generator winding 1 is electrically connected to pins 1, 3, and 7 of chip U3 and pin 4 of chip U9. The other end of resistor R3 is electrically connected to the chip U1. Pin 8 of U3, the other end of resistor R15 is electrically connected to pin 8 of chip U9, the U1 line of generator winding 2 is electrically connected to pins 1, 3, 7 of chip U4 and pin 4 of chip U10, the other end of resistor R4 is electrically connected to pin 8 of chip U4, the other end of resistor R16 is electrically connected to pin 8 of chip U10, the V1 line of generator winding 2 is electrically connected to pins 1, 3, 7 of chip U5 and pin 4 of chip U11, the other end of resistor R5 is electrically connected to pin 8 of chip U5, the other end of resistor R17 is electrically connected to pin 8 of chip U11, the W1 line of generator winding 2 is electrically connected to pins 1, 3, 7 of chip U6 and pin 4 of chip U12, the other end of resistor R6 is electrically connected to pin 8 of chip U6, and the other end of resistor R18 is electrically connected to pin 8 of chip U12.
[0024] Pins 1, 3, and 7 of chip U1 and pin 4 of chip U7 are electrically connected to pins 5 and 6 of connector P1, respectively. Pin 8 of chip U1 is electrically connected to pins 3 and 4 of connector P1. Pin 8 of chip U7 is electrically connected to pins 7 and 8 of connector P1. Pins 1, 3, and 7 of chip U2 and pin 4 of chip U8 are electrically connected to pins 5 and 6 of connector P2, respectively. Pin 8 of chip U2 is electrically connected to pins 3 and 4 of connector P2. Pin 8 of chip U8 is electrically connected to pins 7 and 8 of connector P2. Pins 1, 3, and 7 of chip U3 and pin 4 of chip U9 are electrically connected to pins 5 and 6 of connector P3, respectively. Pin 8 of chip U3 is electrically connected to pins 3 and 4 of connector P3. Pin 8 of chip U9 is electrically connected to pins 7 and 8 of connector P3. Pins 1, 3, and 7 of chip U4 and pin 4 of chip U10 are electrically connected to pins 5 and 6 of connector P4, respectively. Pin 8 of chip U4 is electrically connected to pins 3 and 4 of connector P4. Pin 8 of chip U10 is electrically connected to pins 7 and 8 of connector P4. Pins 1, 3, and 7 of chip U5 and pin 4 of chip U11 are electrically connected to pins 5 and 6 of connector P5, respectively. Pin 8 of chip U5 is electrically connected to pins 3 and 4 of connector P5. Pin 8 of chip U11 is electrically connected to pins 7 and 8 of connector P5. Pins 1, 3, and 7 of chip U6 and pin 4 of chip U12 are electrically connected to pins 5 and 6 of connector P6, respectively. Pin 8 of chip U6 is electrically connected to pins 3 and 4 of connector P6. Pin 8 of chip U12 is electrically connected to pins 7 and 8 of connector P6.
[0025] The power converter also includes a filter circuit, which includes capacitors E4, E5, E6, and E7. One end of each capacitor is electrically connected to the power supply, and the other end of each capacitor is grounded.
[0026] The power supply is DC28V.
[0027] It also includes a low-end auxiliary power supply, which includes a chip U13. Pin 1 of chip U13 is electrically connected to one end of capacitor C79. The other end of capacitor C79 and pin 8 of chip U13 are electrically connected to diode D13 and one end of inductor L2, respectively. Pin 5 of chip U13 is electrically connected to resistor R38 and one end of resistor R39. Pin 4 of chip U13 is electrically connected to one end of resistor R40. The other end of inductor L2 is electrically connected to the other end of resistor R38, capacitors C80, C81, C82, C83, C84, and one end of inductor L1. The other end of inductor L1 is connected to capacitors C85, C86, C87, C88, C89, C90, C91, C92, C94, C95, C96, C97, C98, C99, C100, C101, C102, C103, and C104. One end of C104, C105, C106, C107, and C108, the resistor R39, and the capacitors C80, C81, C82, C83, C84, C85, C86, C87, C88, C89, C90, C91, C92, C94, C95, C96, C97, C98, C99, C100, C101, C102, C103, C104, C105, and C1 The other ends of C106, C107, and C108 are grounded respectively. Pin 2 of chip U13 is electrically connected to one end of capacitors C76, C75, C74, C73, and C93 respectively. Pin 6 of chip U13 is electrically connected to one end of capacitors C77 and C78 respectively. Pins 7 and 9 of chip U13, and the other ends of capacitors C76, C75, C74, C73, C93, C77, and C78 are grounded respectively.
[0028] The electrically excited AC generator outputs a dual three-phase three-wire system. Each of the three phases is rectified separately, and the rectified DC outputs are connected in parallel. After parallel connection, the output is filtered by an electrolytic capacitor, resulting in a DC 28V output. See [link to connection details] for more information. Figure 2 The MOSFETs in this rectifier circuit require synchronization with the AC voltage of the generator. The synchronization circuit automatically detects and synchronizes the AC voltage of the generator, and controls the on and off states of the MOSFETs. The MOSFETs are turned on when the positive half-axis waveform is formed, and turned off when the negative half-axis waveform is formed.
[0029] The working principle of the low-loss rectifier circuit provided by this utility model is as follows:
[0030] Chips U1 and U7, U2 and U8, and U3 and U9 respectively form the upper and lower half-wave rectification control of the U, V, and W phase voltages. They can automatically detect the waveform of the AC voltage. When the U phase voltage waveform changes from the negative half-axis to the positive half-axis, chip U1 detects the positive half-axis and controls the MOSFET Q1 to conduct, while chip U7 turns off the MOSFET Q2, making Q2 non-conducting. When Q1 is on and Q2 is off, it is positive rectification. When the U phase voltage waveform is on the negative half-axis, chip U1 turns off the MOSFET Q1, and chip U7 controls the MOSFET Q2 to conduct. When Q1 is off and Q2 is on, it is negative rectification. Similarly, the V and W phases and the other three phases U1, V1, and W1 can also form rectification.
[0031] This invention, through rectification using a field-effect transistor (FET), significantly reduces losses caused by rectification, thereby improving the overall circuit efficiency. Vehicle-mounted power take-off (PTO) generators typically output AC or DC, or both simultaneously. DC output voltage levels range from DC14V, DC28V, DC42V, DC56V, DC112V, DC270V, to DC500V, with levels below DC96V considered low-voltage. Power outputs range from 1kW to 15kW, and some even reach 20kW to 30kW. For example, with an output voltage of DC28V and a power output of 15kW, the output current is 535A. The generator's three-phase, three-wire AC line voltage is 22.4V, and the effective current is 386A. The forward voltage drop of a standard Schottky diode is 0.86V. Under the same conditions, the FET's on-resistance is only 0.7mΩ, and its voltage drop is only 0.28V. Therefore, the conduction loss is only one-third, and preliminary calculations show an efficiency improvement of 1.5%.
[0032] Therefore, this invention can effectively reduce circuit losses and improve circuit conversion efficiency. It also reduces overall heat dissipation requirements, which is significant for effectively reducing product size.
[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A rectifier circuit with low loss, characterized in that, include: An electrically excited alternator and a power converter, wherein the power converter includes a rectifier circuit; The electrically excited AC generator includes generator winding 1 and generator winding 2; The rectifier circuit includes field-effect transistors Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, and Q12; The U line of the generator winding 1 is electrically connected to resistor R8, capacitor C1, pin 3 of transistor Q1 and pin 2 of transistor Q2; the V line of the generator winding 1 is electrically connected to resistor R9, capacitor C2, pin 3 of transistor Q3 and pin 2 of transistor Q4; and the W line of the generator winding 1 is electrically connected to resistor R10, capacitor C3, pin 3 of transistor Q5 and pin 2 of transistor Q6. The generator winding 2 has its U1 line electrically connected to resistor R12, capacitor C4, pin 3 of transistor Q7, and pin 2 of transistor Q8; its V1 line has its V1 line electrically connected to resistor R11, capacitor C5, pin 3 of transistor Q9, and pin 2 of transistor Q10; and its W1 line has its W1 line electrically connected to resistor R7, capacitor C6, pin 3 of transistor Q11, and pin 2 of transistor Q12.
2. The low-loss rectifier circuit according to claim 1, characterized in that: Pin 1 of transistor Q1 is electrically connected to the other end of resistor R8 and capacitor C1. Pin 1 of transistor Q1 is electrically connected to one end of resistor R1. Pin 1 of transistor Q2 is electrically connected to one end of resistor R13, resistor R19, and capacitor C7. The other ends of resistor R19, capacitor C7, and pin 3 of transistor Q2 are grounded. Pin 1 of transistor Q3 is electrically connected to the other end of resistor R9 and capacitor C2. Pin 1 of transistor Q3 is electrically connected to one end of resistor R2. Pin 1 of transistor Q4 is electrically connected to resistor R14, resistor R23, and capacitor C8. One end of the resistor R23, the other end of the capacitor C8, and pin 3 of the transistor Q4 are grounded. Pin 1 of the transistor Q5 is electrically connected to the other end of the resistor R10 and the capacitor C3. Pin 1 of the transistor Q5 is electrically connected to one end of the resistor R3. Pin 1 of the transistor Q6 is electrically connected to one end of the resistor R15, the resistor R20, and the capacitor C9. The other end of the resistor R20, the capacitor C9, and pin 3 of the transistor Q6 are grounded. Pin 1 of the transistor Q7 is electrically connected to the other end of the resistor R12 and the capacitor C4. Pin 1 of the transistor Q1 is electrically connected to... One end of resistor R4 is electrically connected to pin 1 of transistor Q8, which is connected to one end of resistors R16, R21, and capacitor C10. The other ends of resistor R21, capacitor C10, and pin 3 of transistor Q8 are grounded. Pin 1 of transistor Q9 is electrically connected to the other end of resistor R11 and capacitor C5, and pin 1 of transistor Q9 is electrically connected to one end of resistor R5. Pin 1 of transistor Q10 is electrically connected to one end of resistors R17, R24, and capacitor C11. The other ends of resistor R24, capacitor C11, and pin 3 of transistor Q10 are grounded. Pin 1 of transistor Q11 is electrically connected to the other end of resistor R7 and capacitor C6. Pin 1 of transistor Q1 is electrically connected to one end of resistor R6. Pin 1 of transistor Q12 is electrically connected to one end of resistor R18, resistor R22 and capacitor C12. The other end of resistor R22, capacitor C12 and pin 3 of transistor Q12 are grounded. Pin 2 of transistor Q1, pin 2 of transistor Q3, pin 2 of transistor Q5, pin 2 of transistor Q7, pin 2 of transistor Q9 and pin 2 of transistor Q11 are electrically connected to the power supply.
3. The low-loss rectifier circuit according to claim 1, characterized in that: The power converter further includes a MOS detection and driving circuit, which includes chips U1, U2, U3, U4, U5, U6, U7, U8, U9, U10, U11, and U12. The U-line of the generator winding 1 is electrically connected to pins 1, 3, and 7 of chip U1 and pin 4 of chip U7. The other end of resistor R1 is electrically connected to pin 8 of chip U1. The other end of resistor R13 is electrically connected to pin 8 of chip U7. The V-line of the generator winding 1 is electrically connected to pins 1, 3, and 7 of chip U2 and pin 4 of chip U8. The other end of resistor R2 is electrically connected to pin 8 of chip U2. The other end of resistor R14 is electrically connected to pin 8 of chip U8. The W-line of the generator winding 1 is electrically connected to pins 1, 3, and 7 of chip U3 and pin 4 of chip U9. The other end of resistor R3 is electrically connected to the chip U1. Pin 8 of U3, the other end of resistor R15 is electrically connected to pin 8 of chip U9, the U1 line of generator winding 2 is electrically connected to pins 1, 3, 7 of chip U4 and pin 4 of chip U10, the other end of resistor R4 is electrically connected to pin 8 of chip U4, the other end of resistor R16 is electrically connected to pin 8 of chip U10, the V1 line of generator winding 2 is electrically connected to pins 1, 3, 7 of chip U5 and pin 4 of chip U11, the other end of resistor R5 is electrically connected to pin 8 of chip U5, the other end of resistor R17 is electrically connected to pin 8 of chip U11, the W1 line of generator winding 2 is electrically connected to pins 1, 3, 7 of chip U6 and pin 4 of chip U12, the other end of resistor R6 is electrically connected to pin 8 of chip U6, and the other end of resistor R18 is electrically connected to pin 8 of chip U12.
4. The low-loss rectifier circuit according to claim 3, characterized in that: Pins 1, 3, and 7 of chip U1 and pin 4 of chip U7 are electrically connected to pins 5 and 6 of connector P1, respectively. Pin 8 of chip U1 is electrically connected to pins 3 and 4 of connector P1. Pin 8 of chip U7 is electrically connected to pins 7 and 8 of connector P1. Pins 1, 3, and 7 of chip U2 and pin 4 of chip U8 are electrically connected to pins 5 and 6 of connector P2, respectively. Pin 8 of chip U2 is electrically connected to pins 3 and 4 of connector P2. Pin 8 of chip U8 is electrically connected to pins 7 and 8 of connector P2. Pins 1, 3, and 7 of chip U3 and pin 4 of chip U9 are electrically connected to pins 5 and 6 of connector P3, respectively. Pin 8 of chip U3 is electrically connected to pins 3 and 4 of connector P3. Pin 8 of chip U9 is electrically connected to pins 7 and 8 of connector P3. Pins 1, 3, and 7 of chip U4 and pin 4 of chip U10 are electrically connected to pins 5 and 6 of connector P4, respectively. Pin 8 of chip U4 is electrically connected to pins 3 and 4 of connector P4. Pin 8 of chip U10 is electrically connected to pins 7 and 8 of connector P4. Pins 1, 3, and 7 of chip U5 and pin 4 of chip U11 are electrically connected to pins 5 and 6 of connector P5, respectively. Pin 8 of chip U5 is electrically connected to pins 3 and 4 of connector P5. Pin 8 of chip U11 is electrically connected to pins 7 and 8 of connector P5. Pins 1, 3, and 7 of chip U6 and pin 4 of chip U12 are electrically connected to pins 5 and 6 of connector P6, respectively. Pin 8 of chip U6 is electrically connected to pins 3 and 4 of connector P6. Pin 8 of chip U12 is electrically connected to pins 7 and 8 of connector P6.
5. The rectifier circuit with low loss according to claim 1, characterized in that: The power converter also includes a filter circuit, which includes capacitors E4, E5, E6, and E7. One end of each capacitor is electrically connected to the power supply, and the other end of each capacitor is grounded.
6. The rectifier circuit with low loss according to claim 5, characterized in that: The power supply is DC28V.