Stabilized voltage source with high stability and safety factor

Abstract

The utility model relates to the technical field of power supplies, in particular to a voltage stabilization source with high stability and safety factor, which comprises a voltage stabilization output and power supply module used for outputting stable voltage, a feedback module used for monitoring stable voltage output and a main control module used for integral control, the detection end of the feedback module is connected with the output end of the voltage stabilization output and power supply module, the signal output end of the feedback module is connected with the main control module, and the voltage stabilization output and power supply module supplies power to the feedback module and the main control module. According to the utility model, the stable voltage output can be realized, the voltage can be detected in real time through the feedback module and the output voltage can be further stabilized, the stability of the voltage output is greatly improved, the modular design is adopted, the structure is simple, the design is reasonable, the maintenance is convenient, and the miniaturization of the voltage stabilization source is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology, specifically to a stable and highly safe voltage regulator. Background Technology

[0002] With the rapid development of electronic technology, more and more products are incorporating innovative achievements in this field, thereby greatly improving the performance indicators of related products in various industries. In this process, the quality and characteristics of power supplies, as an indispensable part of electronic devices, are particularly important. Especially in applications requiring high precision and stability, the design and implementation of power supplies have become one of the key factors affecting the performance of the entire system. Among them, a voltage regulator is an electronic device used to control the output voltage to remain stable within a specific range. It plays a crucial role in various electronic systems, protecting circuits from voltage fluctuations and ensuring stable electrical signals and power supply. However, existing voltage regulators have poor stability and are easily affected by load during operation, leading to unstable output voltage. Furthermore, existing voltage regulators have relatively complex structures, making miniaturization difficult. Utility Model Content

[0003] The technical problem to be solved by this utility model is that the existing voltage regulator has poor stability and is easily affected by the load during operation, resulting in unstable output voltage. At the same time, its structure is relatively complex and miniaturization is difficult.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a stable and safe voltage regulator, comprising a voltage regulator output and power supply module for outputting a stable voltage, a feedback module for monitoring the stable voltage output, and a main control module for overall control. The input terminal of the voltage regulator output and power supply module is connected to the mains power, the detection terminal of the feedback module is connected to the output terminal of the voltage regulator output and power supply module, and the signal output terminal of the feedback module is connected to the main control module. The voltage regulator output and power supply provides power to the feedback module and the main control module.

[0005] When this utility model is working, it can achieve a stable voltage output. At the same time, the feedback module can detect the voltage in real time and further stabilize the output voltage, which greatly improves the stability of the voltage output. It also adopts a modular design, which is simple in structure, reasonable in design, convenient in maintenance, and facilitates the miniaturization of the voltage regulator.

[0006] Preferably, the feedback module includes a digital-to-analog converter chip U14, a digital-to-analog converter chip U7, a reference voltage source chip U8, an operational amplifier U17, an operational amplifier U43, an operational amplifier U45, a transistor Q2, a transistor Q3, a transistor Q4, resistors R1, R4, R6, R7, R15, R18, R19, R27, R28, a capacitor C5, a capacitor C6, and a diode D6. The non-inverting input of the operational amplifier U17 is connected to the power supply, the inverting input of the operational amplifier U17 is connected to the VOUT port of the analog-to-digital converter chip U14, the VREF port of the operational amplifier U17 is connected to the OUT port of the reference voltage source chip U8, the output of the operational amplifier U17 is connected to the base of the transistor Q2, and the negative power supply U17 of the operational amplifier is connected to the emitter of the transistor Q3.

[0007] The SDI port of the digital-to-analog converter chip U7 is connected to the PA00 port of the main control module. The VOUT port of the digital-to-analog converter chip U7 is connected to the non-inverting input terminal of the operational amplifier U43 through resistor R7. The inverting input terminal of the operational amplifier U43 is grounded through resistor R4 and connected to the output terminal of the operational amplifier U43 through resistor R1. The positive power supply of the operational amplifier U43 is connected to the power supply and grounded through capacitor C6. The output terminal of the operational amplifier U43 is connected to the non-inverting input terminal of the operational amplifier U45 through resistor R6. The inverting input terminal of the operational amplifier U45 is connected to the emitter of transistor Q4 through resistor R14 and grounded through resistor R18. The output terminal of the operational amplifier U45 is connected to the anode of diode D6 and the base of transistor Q3 through resistor R5. The cathode of diode D6 is connected to the collector of transistor Q2 and connected to the collector of transistor Q4 through resistor R28. The emitter of transistor Q3 is connected to the base of transistor Q4.

[0008] The emitter of transistor Q2 is connected to the inverting input of operational amplifier U45 through resistor R27 and grounded through resistors R15 and R19. The emitter of transistor Q2 is connected to the UADC port of the main control module through resistor R15.

[0009] Preferably, the feedback module further includes an optocoupler isolation chip U19, resistors R12, R16, R24, and R25. The first pin of the input terminal of the optocoupler isolation chip U19 is connected to the power supply through resistor R25, the second pin of the input terminal of the optocoupler isolation chip U19 is connected to the DIOI port of the main control module, the collector of the output terminal of the optocoupler isolation chip U19 is connected to the power supply through resistor R24, and the emitter of the output terminal of the optocoupler isolation chip U19 is connected to the non-inverting input terminal of the operational amplifier U17 through resistors R16 and R12, respectively.

[0010] Preferably, the feedback module further includes diode D5, resistor R01, resistor R26, capacitor C24, and capacitor C25. The emitter of the output terminal of the optocoupler isolation chip U19 is grounded through diode D5 and resistor R01, and is also grounded through capacitor C24, capacitor C25, and resistor R26 respectively.

[0011] Preferably, the voltage regulation output and power supply module includes a DC-DC converter chip U24, a voltage regulator chip U6, a voltage regulator chip U10, a voltage regulator chip U12, a voltage regulator chip U15, a rectifier chip U5, a rectifier chip U11, a rectifier chip U20, resistors R2, R3, and R8, capacitors C3, C4, C7, C8, C14, C15, C17, C19, C26, C27, and C28, and a diode D4. The AC input terminals of the rectifier chip U5, U11, and U20 are all connected to the mains power. The first pin of the DC output terminal of the rectifier chip U20 is connected to the IN port of the voltage regulator chip U12 and the IN port of the voltage regulator chip U15. The OUT port of the voltage regulator chip U12 outputs power and is grounded through capacitor C19. The port is connected to the cathode of diode D4, and the anode of diode D4 is connected to the UADC port of the main control module. The IN port of voltage regulator chip U15 is connected to the second pin of the DC output terminal of rectifier chip U20 through capacitors C3 and C4 respectively. The OUT port of voltage regulator chip U15 outputs power and is connected to the second pin of the DC output terminal of rectifier chip U20 through capacitor C28. The OUT port of voltage regulator chip U15 is connected to the +VIN port of DC-DC converter chip U24. The -VIN port of DC-DC converter chip U24 and the GND port of voltage regulator chip U15 are both connected to the second pin of the DC output terminal of rectifier chip U20. The +VO port of DC-DC converter chip U24 is connected to the -VIN port of DC-DC converter chip U24 and is connected to the -VO port of DC-DC converter chip U24 through capacitor C27. The -VO port of DC-DC converter chip U24 outputs power.

[0012] The first pin of the DC output terminal of the rectifier chip U11 is connected to the IN port of the voltage regulator chip U10. The IN port of the voltage regulator chip U10 is connected to the second pin of the DC output terminal of the rectifier chip U11 through capacitors C17 and C14 respectively. The OUT port of the voltage regulator chip U10 outputs power and is connected to the second pin of the DC output terminal of the rectifier chip U11 through capacitors C15 and C26 respectively.

[0013] The first pin of the DC output terminal of the rectifier chip U5 is connected to the IN port of the voltage regulator chip U6. The IN port of the voltage regulator chip U6 is grounded through capacitor C7, resistor R3 and capacitor C8 respectively. The OUT port of the voltage regulator chip U6 outputs power and is grounded through resistor R2 and resistor R8. The ADJ port of the voltage regulator chip U6 is grounded through resistor R8.

[0014] Preferably, a current sampling circuit is also included, comprising an analog-to-digital converter chip U21, a reference voltage source chip U23, an operational amplifier U25, resistors R40, R41, R42, and R43, and capacitors C23, C35, and C40. The OUT port of the reference voltage source chip U23 is connected to the VREF port of the analog-to-digital converter chip U21 and grounded through capacitor C23. The non-inverting input of the operational amplifier U25 is connected to the reference voltage, and the inverting input of the operational amplifier U25... The terminal is grounded through resistor R42 and connected to the output terminal of operational amplifier U25 through capacitor C35 and resistor R41 respectively. The output terminal of operational amplifier U25 is connected to the +In port of analog-to-digital converter chip U21. The IVO+ port of the main control module is connected to the first end of resistor R43. The second end of resistor R43 is connected to the +In port of analog-to-digital converter chip U21 and grounded through capacitor C40 and resistor R40 respectively. The DOUT port of analog-to-digital converter chip U21 is connected to the PA07 port of the main control module.

[0015] Preferably, the system also includes a communication module, through which the main control module is connected to a corresponding communication bus.

[0016] The beneficial technical effects of this utility model include:

[0017] This invention can achieve stable voltage output. At the same time, the feedback module can detect the voltage in real time and further stabilize the output voltage, which greatly improves the stability of the voltage output. It also adopts a modular design, which is simple in structure, reasonable in design, convenient in maintenance, and facilitates the miniaturization of the voltage regulator.

[0018] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of a stable voltage source with a high safety factor;

[0021] Figure 2 The circuit structure diagram of the main control module;

[0022] Figure 3 This is the circuit structure diagram of the feedback module;

[0023] Figure 4 This is a circuit structure diagram of some modules in a stable and highly safe voltage regulator.

[0024] Figure 5 This is a circuit diagram of the voltage regulation output and power supply module. Detailed Implementation

[0025] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0026] In the following description, terms such as “inner,” “outer,” “upper,” “lower,” “left,” and “right” are used only to facilitate the description of the embodiments and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Please see Figure 1 This embodiment discloses a voltage regulator with a high stability and safety factor, including a voltage regulator output and power supply module 1 for outputting a stable voltage, a feedback module 2 for monitoring the stable voltage output, and a main control module 3 for overall control. The following is a detailed description in conjunction with the accompanying drawings.

[0028] In this embodiment, the input terminal of the voltage regulator output and power supply module 1 is connected to the mains power, the detection terminal of the feedback module 2 is connected to the output terminal of the voltage regulator output and power supply module 1, and the signal output terminal of the feedback module 2 is connected to the main control module 3. The voltage regulator output and power supply provides power to the feedback module 2 and the main control module 3.

[0029] When this embodiment is working, it can achieve a stable voltage output. At the same time, the feedback module 2 can detect the voltage in real time and further stabilize the output voltage, which greatly improves the stability of the voltage output. In addition, it adopts a modular design, which is simple in structure, reasonable in design, convenient in maintenance, and facilitates the miniaturization of the voltage regulator.

[0030] Please see Figures 2 to 5Preferably, the feedback module 2 includes a digital-to-analog converter chip U14, a digital-to-analog converter chip U7, a reference voltage source chip U8, an operational amplifier U17, an operational amplifier U43, an operational amplifier U45, a transistor Q2, a transistor Q3, a transistor Q4, resistors R1, R4, R6, R7, R15, R18, R19, R27, R28, capacitors C5 and C6, and a diode D6. The non-inverting input of the operational amplifier U17 is connected to the power supply, the inverting input of the operational amplifier U17 is connected to the VOUT port of the analog-to-digital converter chip U14, the VREF port of the operational amplifier U17 is connected to the OUT port of the reference voltage source chip U8, the output of the operational amplifier U17 is connected to the base of the transistor Q2, and the negative power supply U17 of the operational amplifier is connected to the emitter of the transistor Q3.

[0031] The SDI port of the digital-to-analog converter chip U7 is connected to the PA00 port of the main control module 3. The VOUT port of the digital-to-analog converter chip U7 is connected to the non-inverting input of the operational amplifier U43 through resistor R7. The inverting input of the operational amplifier U43 is grounded through resistor R4 and connected to the output of the operational amplifier U43 through resistor R1. The positive power supply of the operational amplifier U43 is connected to the power supply and grounded through capacitor C6. The output of the operational amplifier U43 is connected to the non-inverting input of the operational amplifier U45 through resistor R6. The inverting input of the operational amplifier U45 is connected to the emitter of the transistor Q4 through resistor R14 and grounded through resistor R18. The output of the operational amplifier U45 is connected to the anode of the diode D6 and the base of the transistor Q3 through resistor R5. The cathode of the diode D6 is connected to the collector of the transistor Q2 and connected to the collector of the transistor Q4 through resistor R28. The emitter of the transistor Q3 is connected to the base of the transistor Q4.

[0032] The emitter of transistor Q2 is connected to the inverting input of operational amplifier U45 through resistor R27 and grounded through resistors R15 and R19. The emitter of transistor Q2 is also connected to the UADC port of main control module 3 through resistor R15. During operation, main control module 3 outputs control signals to digital-to-analog converter chip U7 to control the voltage value of 30OUT. At the same time, it controls the turn-on of transistors Q3 and Q4 to perform voltage sampling. Simultaneously, main control module 3 outputs control signals to optocoupler isolation chip U19 to turn on operational amplifier U17, and outputs control signals to digital-to-analog converter chip U14. Through their mutual cooperation, the turn-on of transistor Q2 is controlled, and voltage sampling can be performed while real-time adjustments can be made based on negative feedback.

[0033] Preferably, the feedback module 2 also includes an optocoupler isolation chip U19, resistors R12, R16, R24, and R25. The first pin of the input terminal of the optocoupler isolation chip U19 is connected to the power supply through resistor R25, the second pin of the input terminal of the optocoupler isolation chip U19 is connected to the DIOI port of the main control module 3, the collector of the output terminal of the optocoupler isolation chip U19 is connected to the power supply through resistor R24, and the emitter of the output terminal of the optocoupler isolation chip U19 is connected to the non-inverting input terminal of the operational amplifier U17 through resistors R16 and R12 respectively. Electrical isolation is achieved through the optocoupler isolation chip, which can avoid interference to 30OUT and further improve the stability of the voltage output.

[0034] In this embodiment, the feedback module 2 further includes diode D5, resistor R01, resistor R26, capacitor C24, and capacitor C25. The emitter of the output terminal of the optocoupler isolation chip U19 is grounded through diode D5 and resistor R01, and then grounded through capacitor C24, capacitor C25, and resistor R26 respectively. This can achieve clamping protection for 30OUT, avoid excessive voltage impact on subsequent circuits, and also achieve filtering function, improving signal quality and avoiding interference.

[0035] In practical implementation, the voltage regulation output and power supply module 1 includes a DC-DC converter chip U24, a voltage regulator chip U6, a voltage regulator chip U10, a voltage regulator chip U12, a voltage regulator chip U15, a rectifier chip U5, a rectifier chip U11, a rectifier chip U20, resistors R2, R3, and R8, capacitors C3, C4, C7, C8, C14, C15, C17, C19, C26, C27, and C28, and a diode D4. The AC input terminals of rectifier chip U5, rectifier chip U11, and rectifier chip U20 are all connected to the mains power. The first pin of the DC output terminal of rectifier chip U20 is connected to the IN port of voltage regulator chip U12 and the IN port of voltage regulator chip U15. The OUT port of voltage regulator chip U12 outputs power and is grounded through capacitor C19. The UT port is connected to the cathode of diode D4, and the anode of diode D4 is connected to the UADC port of main control module 3. The IN port of voltage regulator chip U15 is connected to the second pin of the DC output terminal of rectifier chip U20 through capacitors C3 and C4 respectively. The OUT port of voltage regulator chip U15 outputs power and is connected to the second pin of the DC output terminal of rectifier chip U20 through capacitor C28. The OUT port of voltage regulator chip U15 is connected to the +VIN port of DC converter chip U24. The -VIN port of DC converter chip U24 and the GND port of voltage regulator chip U15 are both connected to the second pin of the DC output terminal of rectifier chip U20. The +VO port of DC converter chip U24 is connected to the -VIN port of DC converter chip U24 and is connected to the -VO port of DC converter chip U24 through capacitor C27. The -VO port of DC converter chip U24 outputs power.

[0036] The first pin of the DC output terminal of rectifier chip U11 is connected to the IN port of voltage regulator chip U10.

[0037] The IN port of the voltage regulator chip U10 is connected to the second pin of the DC output terminal of the rectifier chip U11 through capacitors C17 and C14 respectively. The OUT port of the voltage regulator chip U10 outputs power and is connected to the second pin of the DC output terminal of the rectifier chip U11 through capacitors C15 and C26 respectively.

[0038] The first pin of the DC output terminal of rectifier chip U5 is connected to the IN port of voltage regulator chip U6. The IN port of voltage regulator chip U6 is grounded through capacitor C7, resistor R3 and capacitor C8 respectively. The OUT port of voltage regulator chip U6 outputs power and is grounded through resistor R2 and resistor R8. The ADJ port of voltage regulator chip U6 is grounded through resistor R8.

[0039] Preferably, the system also includes a current sampling circuit 4, which comprises an analog-to-digital converter chip U21, a reference voltage source chip U23, an operational amplifier U25, resistors R40, R41, R42, and R43, and capacitors C23, C35, and C40. The OUT port of the reference voltage source chip U23 is connected to the VREF port of the analog-to-digital converter chip U21 and grounded through capacitor C23. The non-inverting input of the operational amplifier U25 is connected to the reference voltage, and the inverting input of the operational amplifier U25 is grounded through resistor R42 and connected to capacitors C35 and R40 respectively. 1. Connect to the output of operational amplifier U25. The output of operational amplifier U25 is connected to the +In port of analog-to-digital converter chip U21. The IVO+ port of main control module 3 is connected to the first end of resistor R43. The second end of resistor R43 is connected to the +In port of analog-to-digital converter chip U21 and grounded through capacitor C40 and resistor R40 respectively. The DOUT port of analog-to-digital converter chip U21 is connected to the PA07 port of main control module 3. This enables current sampling. Through comprehensive monitoring, the control accuracy of the voltage regulator can be improved, and it is convenient for operators to monitor the overall working status of the system in real time.

[0040] Preferably, it also includes a communication module 5. The main control module 3 is connected to the corresponding communication bus through the communication module 5. In specific implementation, the communication module 5 can be any existing communication circuit such as a 485 communication device, a Bluetooth communication circuit, or a WiFi communication circuit.

[0041] The beneficial technical effects of this embodiment include: the present invention can achieve stable voltage output, and at the same time, the feedback module can detect the voltage in real time and further stabilize the output voltage, which greatly improves the stability of the voltage output. At the same time, the modular design is simple in structure, reasonable in design, convenient in maintenance, and facilitates the miniaturization of the voltage regulator.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A voltage stabilizer with high stability safety factor, characterized in that: It includes a voltage regulator output and power supply module (1) for outputting a stable voltage, a feedback module (2) for monitoring the stable voltage output, and a main control module (3) for overall control. The input terminal of the voltage regulator output and power supply module (1) is connected to the mains power, the detection terminal of the feedback module (2) is connected to the output terminal of the voltage regulator output and power supply module (1), and the signal output terminal of the feedback module (2) is connected to the main control module (3). The voltage regulator output and power supply provides power to the feedback module (2) and the main control module (3). ​ 2. The voltage regulator according to claim 1, wherein: The feedback module (2) includes a digital-to-analog converter chip U14, a digital-to-analog converter chip U7, a reference voltage source chip U8, an operational amplifier U17, an operational amplifier U43, an operational amplifier U45, a transistor Q2, a transistor Q3, a transistor Q4, resistors R1, R4, R6, R7, R15, R18, R19, R27, R28, a capacitor C5, a capacitor C6, and a diode D6. The non-inverting input terminal of the operational amplifier U17 is connected to the power supply, the inverting input terminal of the operational amplifier U17 is connected to the VOUT port of the analog-to-digital converter chip U14, the VREF port of the operational amplifier U17 is connected to the OUT port of the reference voltage source chip U8, the output terminal of the operational amplifier U17 is connected to the base of the transistor Q2, and the negative power supply U17 of the operational amplifier is connected to the emitter of the transistor Q3. The SDI port of the digital-to-analog converter chip U7 is connected to the PA00 port of the main control module (3). The VOUT port of the digital-to-analog converter chip U7 is connected to the non-inverting input terminal of the operational amplifier U43 through resistor R7. The inverting input terminal of the operational amplifier U43 is grounded through resistor R4 and connected to the output terminal of the operational amplifier U43 through resistor R1. The positive power supply of the operational amplifier U43 is connected to the power supply and grounded through capacitor C6. The output terminal of the operational amplifier U43 is connected to the non-inverting input terminal of the operational amplifier U45 through resistor R6. The inverting input terminal of the operational amplifier U45 is connected to the emitter of transistor Q4 through resistor R14 and grounded through resistor R18. The output terminal of the operational amplifier U45 is connected to the anode of diode D6 and the base of transistor Q3 through resistor R5. The cathode of diode D6 is connected to the collector of transistor Q2 and connected to the collector of transistor Q4 through resistor R28. The emitter of transistor Q3 is connected to the base of transistor Q4. The emitter of transistor Q2 is connected to the inverting input of operational amplifier U45 through resistor R27 and grounded through resistors R15 and R19. The emitter of transistor Q2 is connected to the UADC port of main control module (3) through resistor R15.

3. The voltage regulator source with high stability and safety factor according to claim 2, characterized in that: The feedback module (2) also includes an optocoupler isolation chip U19, resistors R12, R16, R24 and R25. The first pin of the input terminal of the optocoupler isolation chip U19 is connected to the power supply through resistor R25. The second pin of the input terminal of the optocoupler isolation chip U19 is connected to the DIOI port of the main control module (3). The collector of the output terminal of the optocoupler isolation chip U19 is connected to the power supply through resistor R24. The emitter of the output terminal of the optocoupler isolation chip U19 is connected to the non-inverting input terminal of the operational amplifier U17 through resistors R16 and R12 respectively.

4. The voltage regulator source with high stability and safety factor according to claim 3, characterized in that: The feedback module (2) also includes diode D5, resistor R01, resistor R26, capacitor C24 and capacitor C25. The emitter of the output terminal of the optocoupler isolation chip U19 is grounded through diode D5 and resistor R01 and grounded through capacitor C24, capacitor C25 and resistor R26 respectively.

5. The voltage regulator according to claim 1, wherein: The voltage regulation output and power supply module (1) includes a DC-DC converter chip U24, a voltage regulator chip U6, a voltage regulator chip U10, a voltage regulator chip U12, a voltage regulator chip U15, a rectifier chip U5, a rectifier chip U11, a rectifier chip U20, resistors R2, R3, and R8, capacitors C3, C4, C7, C8, C14, C15, C17, C19, C26, C27, and C28, and a diode D4. The AC input terminals of the rectifier chip U5, U11, and U20 are all connected to the mains power. The first pin of the DC output terminal of the rectifier chip U20 is connected to the IN port of the voltage regulator chip U12 and the IN port of the voltage regulator chip U15. The OUT port of the voltage regulator chip U12 outputs power and is grounded through capacitor C19. The OUT port of the voltage regulator chip U12 is connected to the diode D4. The cathode of diode D4 is connected, and the anode of diode D4 is connected to the UADC port of the main control module (3). The IN port of voltage regulator chip U15 is connected to the second pin of the DC output terminal of rectifier chip U20 through capacitors C3 and C4 respectively. The OUT port of voltage regulator chip U15 outputs power and is connected to the second pin of the DC output terminal of rectifier chip U20 through capacitor C28. The OUT port of voltage regulator chip U15 is connected to the +VIN port of DC converter chip U24. The -VIN port of DC converter chip U24 and the GND port of voltage regulator chip U15 are both connected to the second pin of the DC output terminal of rectifier chip U20. The +VO port of DC converter chip U24 is connected to the -VIN port of DC converter chip U24 and is connected to the -VO port of DC converter chip U24 through capacitor C27. The -VO port of DC converter chip U24 outputs power. The first pin of the DC output terminal of the rectifier chip U11 is connected to the IN port of the voltage regulator chip U10. The IN port of the voltage regulator chip U10 is connected to the second pin of the DC output terminal of the rectifier chip U11 through capacitors C17 and C14 respectively. The OUT port of the voltage regulator chip U10 outputs power and is connected to the second pin of the DC output terminal of the rectifier chip U11 through capacitors C15 and C26 respectively. The first pin of the DC output terminal of the rectifier chip U5 is connected to the IN port of the voltage regulator chip U6. The IN port of the voltage regulator chip U6 is grounded through capacitor C7, resistor R3 and capacitor C8 respectively. The OUT port of the voltage regulator chip U6 outputs power and is grounded through resistor R2 and resistor R8. The ADJ port of the voltage regulator chip U6 is grounded through resistor R8.

6. The voltage regulator according to claim 1, wherein: It also includes a current sampling circuit (4), which includes an analog-to-digital converter chip U21, a reference voltage source chip U23, an operational amplifier U25, resistors R40, R41, R42, and R43, capacitors C23, C35, and C40. The OUT port of the reference voltage source chip U23 is connected to the VREF port of the analog-to-digital converter chip U21 and grounded through capacitor C23. The non-inverting input terminal of the operational amplifier U25 is connected to the reference voltage, and the inverting input terminal of the operational amplifier U25 is connected to the reference voltage. The circuit is grounded through resistor R42 and connected to the output of operational amplifier U25 through capacitor C35 and resistor R41 respectively. The output of operational amplifier U25 is connected to the +In port of analog-to-digital converter chip U21. The IVO+ port of the main control module (3) is connected to the first end of resistor R43. The second end of resistor R43 is connected to the +In port of analog-to-digital converter chip U21 and grounded through capacitor C40 and resistor R40 respectively. The DOUT port of analog-to-digital converter chip U21 is connected to the PA07 port of main control module (3).

7. The voltage regulator of claim 1, wherein: the voltage regulator is a voltage regulator with a high stability factor. It also includes a communication module (5), and the main control module (3) is connected to the corresponding communication bus through the communication module (5).

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