A power supply guarantee control circuit and system based on power supply data

Abstract

The present invention discloses a power supply guarantee control circuit and system based on power supply data, which relates to the field of power supply control technology, including a power supply module for power supply; a first regulating module and a second regulating module, both for boost regulation, power transmission and power compensation; a path control module for power transmission control and realizing the power compensation work of the first regulating module and the second regulating module; an inverter module for inverter work; a central control module for signal reception and module control; a voltage range detection module for detecting whether the required power is greater than the maximum power provided by the first regulating module and the second regulating module; a drive control module for controlling the power compensation work of the first regulating module and the second regulating module; and an output module for receiving the power output by the inverter module. The power supply guarantee control circuit and system based on power supply data of the present invention can reduce the boost temperature, improve the power regulation efficiency, and provide a wider voltage range.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply control, and in particular to a power supply guarantee control circuit and system based on power supply data. Background Art

[0002] In order to improve the stability and efficiency of the power supply, realize the conversion of voltage and current, and meet the power demand of electrical equipment or systems, the power supply in traditional technology generally adopts the control method of rectifier and inverter, and uses medium and high frequency transformers in the inverter topology to realize AC-AC regulation. In order to avoid magnetic saturation of medium and high frequency transformers, the power supply in the prior art adopts a boost circuit to replace the medium and high frequency transformer, and the electric energy rectified by the rectifier is boosted by the boost circuit, and then the boosted electric energy is inverted by the inverter to meet the power supply demand. However, the boost circuit is prone to overheating during long-term boosting work, which reduces the safety and efficiency of power supply, and the maximum boost degree of the boost circuit is limited, resulting in a small scope of application of the power supply, so it needs to be improved. Summary of the invention

[0003] The embodiments of the present invention provide a power supply guarantee control circuit and system based on power supply data to solve the problems raised in the above background technology.

[0004] According to an embodiment of the present invention, a power supply guarantee control circuit based on power supply data is provided, comprising: a power supply module, a first adjustment module, a second adjustment module, a path control module, an inverter module, a central control module, a voltage range detection module, a drive control module and an output module;

[0005] A power module, used for receiving AC power and performing rectification and filtering on the AC power to output first power;

[0006] a first regulating module connected to the central control module, the drive control module, the power module, the path control module and the inverter module, and configured to, upon receiving a first pulse signal output by the central control module, perform voltage step-up regulation on the first electric energy and output the second electric energy, upon receiving a first drive signal output by the drive control module, transmit the second electric energy to the path control module, upon receiving a third electric energy transmitted by the path control module, perform compensation processing on the third electric energy and the second electric energy, and transmit the second electric energy or the compensated electric energy to the inverter module;

[0007] a second regulating module connected to the central control module, the drive control module, the power module, the path control module and the inverter module, and configured to, upon receiving a second pulse signal output by the central control module, perform voltage step-up regulation on the first electric energy and output a third electric energy, upon receiving a second drive signal output by the drive control module, transmit the third electric energy to the path control module, upon receiving the second electric energy transmitted by the path control module, perform compensation processing on the second electric energy and the third electric energy, and transmit the third electric energy or the compensated electric energy to the inverter module;

[0008] a passage control module connected to the drive control module, and configured to transmit the second electric energy to the second regulating module when receiving the first drive signal output by the drive control module, and transmit the third electric energy to the first regulating module when receiving the second drive signal output by the drive control module;

[0009] an inverter module, connected to the central control module, and configured to invert the second electric energy and the third electric energy, and invert the electric energy output after compensation by the first regulating module and the electric energy output after compensation by the second regulating module, when receiving the third pulse signal, the fourth pulse signal, the fifth pulse signal and the sixth pulse signal output by the central control module;

[0010] a central control module, connected to the voltage range detection module, used to output a third pulse signal, a fourth pulse signal, a fifth pulse signal and a sixth pulse signal and control the operation of the inverter module, output a first pulse signal when outputting the third pulse signal and the fifth pulse signal, output a second pulse signal when outputting the fourth pulse signal and the sixth pulse signal, output a first adjustment signal according to the power supply data, and adjust the duty cycle of the first pulse signal or the second pulse signal when receiving the first level signal output by the voltage range detection module;

[0011] A voltage range detection module, configured to set a first voltage threshold, and when receiving a first adjustment signal, set a second voltage threshold, and output a first level signal when the second voltage threshold is greater than the first voltage threshold;

[0012] a drive control module, connected to the voltage range detection module, configured to perform rectification and filtering processing on the third pulse signal and the fifth pulse signal, and output a second drive signal when receiving the third pulse signal and the first level signal, and output a first drive signal when receiving the sixth pulse signal and the first level signal;

[0013] The output module is connected to the inverter module and is used for filtering the electric energy output by the inverter module.

[0014] As a further solution of the present invention: the power supply module includes a power supply port, a full-wave rectifier and a first capacitor; the first regulating module includes a first inductor, a first field effect transistor, a first crystal diode, a third capacitor, a second capacitor, a second resistor, a first triode, a first semiconductor device and a first resistor; the central control module includes a central processing unit;

[0015] Preferably, the first end and the second end of the power supply port are respectively connected to the first end and the second end of the full-wave rectifier, the third end of the full-wave rectifier is connected to the first end of the first capacitor and one end of the first inductor, the other end of the first inductor is connected to the drain of the first field effect transistor and the anode of the first crystal diode, the cathode of the first crystal diode is connected to the collector of the first semiconductor device and the first end of the third capacitor and is connected to the gate of the first semiconductor device and the collector of the first transistor through the second resistor, the second end of the third capacitor is connected to the source of the first field effect transistor, the emitter and the ground of the first transistor through the second capacitor, the base of the first transistor is connected to the first end of the first resistor, the second end of the first resistor is connected to the drive control module, the gate of the first field effect transistor is connected to the IO1 end of the central processing unit, and the emitter of the first semiconductor device is connected to the inverter module.

[0016] As a further solution of the present invention: the second regulating module includes a second inductor, a second field effect transistor, a second crystal diode, a fifth capacitor, a fourth capacitor, a third resistor, a third semiconductor device, a fourth resistor and a second triode;

[0017] Preferably, one end of the second inductor is connected to the first end of the first capacitor, the other end of the second inductor is connected to the drain of the second field effect transistor and the anode of the second crystal diode, the gate of the second field effect transistor is connected to the IO2 terminal of the central processing unit, the emitter of the third semiconductor device is connected to the inverter module, the gate of the third semiconductor device is connected to the collector of the second transistor and connected to one end of the fourth capacitor, the cathode of the second crystal diode and the collector of the third semiconductor device through the third resistor, the second end of the fourth capacitor is connected to the source of the second field effect transistor, the emitter of the second transistor and the ground through the fifth capacitor, the base of the second transistor is connected to the first end of the fourth resistor, and the second end of the fourth resistor is connected to the drive control module.

[0018] As a further solution of the present invention: the voltage range detection module includes a first constant voltage source, a fifth resistor, a sixth resistor, a seventh resistor, a third field effect transistor, an eighth resistor and a first comparison device;

[0019] Preferably, the in-phase end of the first comparison device is connected to the drain of the third field effect transistor and connected to one end of the fifth resistor and the first constant voltage source through the seventh resistor, the other end of the fifth resistor is connected to the inverting end of the first comparison device and grounded through the sixth resistor, the source of the third field effect transistor is grounded through the eighth resistor, the gate of the third field effect transistor is connected to the IO3 end of the central processing unit, and the output end of the first comparison device is connected to the IO4 end of the central processing unit and the output switching module.

[0020] As a further solution of the present invention: the passage control module includes a fourth semiconductor device and a second semiconductor device;

[0021] Preferably, the emitter of the fourth semiconductor device is connected to the second end of the third capacitor, the emitter of the second semiconductor device is connected to the second end of the fourth capacitor, the collector of the fourth semiconductor device is connected to the cathode of the second crystal diode, the collector of the second semiconductor device is connected to the cathode of the first crystal diode, and the gate of the second semiconductor device and the gate of the fourth semiconductor device are connected to the drive control module.

[0022] As a further solution of the present invention: the drive control module includes a third crystal diode, a fourth crystal diode, a seventh capacitor, an eighth capacitor, a first logic device and a second logic device;

[0023] Preferably, the anode of the third crystal diode and the anode of the fourth crystal diode are respectively connected to the IO5 terminal and IO8 terminal of the central processing unit, the cathode of the third crystal diode is connected to the A terminal of the first logic device and is grounded through the eighth capacitor, the cathode of the fourth crystal diode is connected to the A terminal of the second logic device and is grounded through the seventh capacitor, the B terminal of the first logic device and the B terminal of the second logic device are both connected to the output terminal of the first comparison device, the F terminal of the first logic device is connected to the gate of the fourth semiconductor device and the second end of the fourth resistor, and the F terminal of the second logic device is connected to the gate of the second semiconductor device and the second end of the first resistor.

[0024] As a further solution of the present invention: the inverter module includes a fifth semiconductor device, a sixth semiconductor device, a seventh semiconductor device and an eighth semiconductor device; the output module includes a third inductor, a sixth capacitor and an output port;

[0025] Preferably, the collector of the fifth semiconductor device is connected to the emitter of the first semiconductor device, the collector of the sixth semiconductor device is connected to the emitter of the third semiconductor device, the emitter of the fifth semiconductor device is connected to the collector of the eighth semiconductor device and is connected to one end of the sixth capacitor and one end of the output port through a third inductor, the emitter of the sixth semiconductor device is connected to the collector of the seventh semiconductor device, the other end of the sixth capacitor and the other end of the output port, the emitter of the eighth semiconductor device is connected to the emitter of the seventh semiconductor device and the second end of the first capacitor, and the gate of the fifth semiconductor device, the gate of the sixth semiconductor device, the gate of the seventh semiconductor device and the gate of the eighth semiconductor device are respectively connected to the IO5 terminal, IO6 terminal, IO7 terminal and IO8 terminal of the central processing unit.

[0026] As a further solution of the present invention: an embodiment of the present invention further provides a power supply guarantee control system based on power supply data, the system includes the power supply guarantee control circuit based on power supply data described in the above aspects.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the power supply guarantee control circuit and system based on power supply data of the present invention realizes alternating boost processing by the first regulating module and the second regulating module, and both can provide the electric energy required for inversion for the inverter module, reduce the working temperature of the boost operation, and improve the electric energy regulation efficiency. The central control module can control the voltage range detection module to set the second voltage threshold, that is, the required electric energy. When the second voltage threshold is greater than the first voltage threshold, the first voltage threshold is the maximum voltage that can be output by the first regulating module and the second regulating module. The drive control module will control the second regulating module to perform electric energy compensation for the first regulating module when the first regulating module supplies power to the inverter module, and control the first regulating module to perform electric energy compensation for the second regulating module when the second regulating module supplies power to the inverter module, thereby providing a wider voltage range and increasing the applicable scope of the power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 A schematic block diagram of a power supply assurance control circuit based on power supply data provided in an embodiment of the present invention.

[0030] Figure 2 A circuit diagram of a power supply assurance control circuit based on power supply data provided by an embodiment of the present invention.

[0031] Figure 3 A circuit diagram of a voltage range detection module provided in an embodiment of the present invention.

[0032] Figure 4 A circuit diagram of a drive control module provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In one embodiment, see Figure 1 , a power supply guarantee control circuit based on power supply data, comprising: a power supply module 1, a first regulating module 2, a second regulating module 3, a path control module 4, an inverter module 5, a central control module 6, a voltage range detection module 7, a drive control module 8 and an output module 9;

[0035] Specifically, the power module 1 is used to receive AC power and perform rectification and filtering on the AC power to output first power;

[0036] The first regulating module 2 is connected to the central control module 6, the drive control module 8, the power module 1, the path control module 4 and the inverter module 5, and is used to step up and regulate the first electric energy and output the second electric energy when receiving the first pulse signal output by the central control module 6, transmit the second electric energy to the path control module 4 when receiving the first drive signal output by the drive control module 8, and compensate the third electric energy with the second electric energy when receiving the third electric energy transmitted by the path control module 4, and transmit the second electric energy or the compensated electric energy to the inverter module 5;

[0037] The second regulating module 3 is connected to the central control module 6, the drive control module 8, the power module 1, the path control module 4 and the inverter module 5, and is used to step up and regulate the first electric energy and output the third electric energy when receiving the second pulse signal output by the central control module 6, transmit the third electric energy to the path control module 4 when receiving the second drive signal output by the drive control module 8, and compensate the second electric energy with the third electric energy when receiving the second electric energy transmitted by the path control module 4, and transmit the third electric energy or the compensated electric energy to the inverter module 5;

[0038] The passage control module 4 is connected to the drive control module 8 and is used to transmit the second electric energy to the second regulating module 3 when receiving the first drive signal output by the drive control module 8, and transmit the third electric energy to the first regulating module 2 when receiving the second drive signal output by the drive control module 8;

[0039] The inverter module 5 is connected to the central control module 6, and is used to invert the second electric energy and the third electric energy, and invert the electric energy output after compensation by the first regulating module 2 and the electric energy output after compensation by the second regulating module 3 when receiving the third pulse signal, the fourth pulse signal, the fifth pulse signal and the sixth pulse signal output by the central control module 6;

[0040] The central control module 6 is connected to the voltage range detection module 7, and is used to output a third pulse signal, a fourth pulse signal, a fifth pulse signal, and a sixth pulse signal and control the operation of the inverter module 5. When the third pulse signal and the fifth pulse signal are output, the first pulse signal is output, and when the fourth pulse signal and the sixth pulse signal are output, the second pulse signal is output, and the first adjustment signal is output according to the power supply data. When receiving the first level signal output by the voltage range detection module 7, the duty cycle of the first pulse signal or the second pulse signal is adjusted;

[0041] A voltage range detection module 7, used to set a first voltage threshold, and when receiving a first adjustment signal, set a second voltage threshold, and output a first level signal when the second voltage threshold is greater than the first voltage threshold;

[0042] A drive control module 8, connected to the voltage range detection module 7, for performing rectification and filtering on the third pulse signal and the fifth pulse signal, and outputting a second drive signal when receiving the third pulse signal and the first level signal, and outputting a first drive signal when receiving the sixth pulse signal and the first level signal;

[0043] The output module 9 is connected to the inverter module 5 and is used for filtering the electric energy output by the inverter module 5 .

[0044] In a specific embodiment, the power supply module 1 can adopt a power supply circuit composed of a power supply port, a rectifier and a capacitor, can connect to AC power and perform rectification and filtering on the AC power; the first regulation module 2 can adopt a first regulation circuit composed of an inductor, a field effect transistor, a crystal diode, an IGBT, etc., can perform boost control, power transmission control and provide compensation power; the second regulation module 3 can adopt a second regulation circuit composed of an inductor, a field effect transistor, a crystal diode, an IGBT, etc., can perform boost control, power transmission control and provide compensation power; the path control module 4 can adopt a path control circuit composed of IGBT, can realize the power transmission work between the first regulation module 2 and the second regulation module 3, and realize the power compensation work between the first regulation module 2 and the second regulation module 3; the inverter module 5 can adopt an inverter circuit composed of four groups of IGBTs to perform DC-AC inversion on the input power; the central control module 6 can adopt a central control circuit composed of a single-chip microcomputer, which integrates an arithmetic unit, a controller, a memory and an input and output output and many other components to realize signal processing, data storage, module control, timing control and other functions; the above-mentioned voltage range detection module 7 can adopt a voltage range detection module 7 composed of field effect tubes, resistors, comparators, etc., and can set a first voltage threshold and a second voltage threshold. The second voltage threshold is the required power supply voltage, which is adjusted and controlled by the central control module 6. The first voltage threshold is the maximum voltage that the first adjustment module 2 and the second adjustment module 3 can output. By comparing the magnitude relationship between the first voltage threshold and the second voltage threshold, it is determined whether to control the operation of the drive control module 8; the above-mentioned drive control module 8 can adopt a drive control circuit composed of a logic chip, a crystal diode and a capacitor. When the first voltage threshold is less than the second voltage threshold, the central control module 6 controls the working state of the inverter module 5 to control the power transmission state of the path control module 4, the first adjustment module 2 and the second adjustment module 3; the above-mentioned output module 9 can adopt an output circuit composed of an output port, an inductor and a capacitor to filter the input power and power the connected electronic equipment.

[0045] In another embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 4 The power supply module 1 includes a power supply port, a full-wave rectifier T1 and a first capacitor C1; the first regulating module 2 includes a first inductor L1, a first field effect transistor M1, a first crystal diode D1, a third capacitor C3, a second capacitor C2, a second resistor R2, a first transistor V1, a first semiconductor device Q1 and a first resistor R1; the central control module 6 includes a central processor U1;

[0046] Specifically, the first end and the second end of the power supply port are respectively connected to the first end and the second end of the full-wave rectifier T1, the third end of the full-wave rectifier T1 is connected to the first end of the first capacitor C1 and one end of the first inductor L1, the other end of the first inductor L1 is connected to the drain of the first field effect transistor M1 and the anode of the first crystal diode D1, the cathode of the first crystal diode D1 is connected to the collector of the first semiconductor device Q1 and the first end of the third capacitor C3 and connected to the gate of the first semiconductor device Q1 and the collector of the first transistor V1 through the second resistor R2, the second end of the third capacitor C3 is connected to the source of the first field effect transistor M1, the emitter of the first transistor V1 and the ground through the second capacitor C2, the base of the first transistor V1 is connected to the first end of the first resistor R1, the second end of the first resistor R1 is connected to the drive control module 8, the gate of the first field effect transistor M1 is connected to the IO1 end of the central processing unit U1, and the emitter of the first semiconductor device Q1 is connected to the inverter module 5.

[0047] In a specific embodiment, the first field effect transistor M1 may be an N-channel field effect transistor, which cooperates with the first inductor L1 and the first crystal diode D1 to perform a voltage boost operation; the first semiconductor device Q1 may be an IGBT for power transmission; the first transistor V1 may be an NPN transistor; and the central processor U1 may be an STM32 microcontroller.

[0048] Further, the second regulating module 3 includes a second inductor L2, a second field effect transistor M2, a second crystal diode D2, a fifth capacitor C5, a fourth capacitor C4, a third resistor R3, a third semiconductor device Q3, a fourth resistor R4 and a second triode V2;

[0049] Specifically, one end of the second inductor L2 is connected to the first end of the first capacitor C1, the other end of the second inductor L2 is connected to the drain of the second field effect transistor M2 and the anode of the second crystal diode D2, the gate of the second field effect transistor M2 is connected to the IO2 end of the central processing unit U1, the emitter of the third semiconductor device Q3 is connected to the inverter module 5, the gate of the third semiconductor device Q3 is connected to the collector of the second transistor V2 and connected to one end of the fourth capacitor C4, the cathode of the second crystal diode D2 and the collector of the third semiconductor device Q3 through the third resistor R3, the second end of the fourth capacitor C4 is connected to the source of the second field effect transistor M2, the emitter of the second transistor V2 and the ground through the fifth capacitor C5, the base of the second transistor V2 is connected to the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is connected to the drive control module 8.

[0050] In a specific embodiment, the second field effect transistor M2 may be an N-channel field effect transistor, which cooperates with the second inductor L2 and the second crystal diode D2 for boost control; the third semiconductor device Q3 may be an IGBT for power transmission; and the second transistor V2 may be an NPN transistor.

[0051] Further, the voltage range detection module 7 includes a first constant voltage source VCC1, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a third field effect transistor M3, an eighth resistor R8 and a first comparison device A1;

[0052] Specifically, the in-phase end of the first comparison device A1 is connected to the drain of the third field effect transistor M3 and connected to one end of the fifth resistor R5 and the first constant voltage source VCC1 through the seventh resistor R7, the other end of the fifth resistor R5 is connected to the inverting end of the first comparison device A1 and grounded through the sixth resistor R6, the source of the third field effect transistor M3 is grounded through the eighth resistor R8, the gate of the third field effect transistor M3 is connected to the IO3 end of the central processing unit U1, and the output end of the first comparison device A1 is connected to the IO4 end of the central processing unit U1 and the output switching module.

[0053] In a specific embodiment, the third field effect transistor M3 may be an N-channel field effect transistor, which cooperates with the first constant voltage source VCC1, the seventh resistor R7 and the eighth resistor R8 to provide a second voltage threshold; the fifth resistor R5, the sixth resistor R6 and the first constant voltage source VCC1 provide a first voltage threshold; the first comparison device A1 may be an LM358 comparator.

[0054] Further, the passage control module 4 includes a fourth semiconductor device Q4 and a second semiconductor device Q2;

[0055] Specifically, the emitter of the fourth semiconductor device Q4 is connected to the second end of the third capacitor C3, the emitter of the second semiconductor device Q2 is connected to the second end of the fourth capacitor C4, the collector of the fourth semiconductor device Q4 is connected to the cathode of the second crystal diode D2, the collector of the second semiconductor device Q2 is connected to the cathode of the first crystal diode D1, and the gate of the second semiconductor device Q2 and the gate of the fourth semiconductor device Q4 are connected to the drive control module 8.

[0056] In a specific embodiment, both the second semiconductor device Q2 and the fourth semiconductor device Q4 may be IGBTs. The second semiconductor device Q2 transmits the electric energy output by the first regulating module 2 , and the fourth semiconductor device Q4 transmits the electric energy output by the second regulating module 3 .

[0057] Further, the driving control module 8 includes a third crystal diode D3, a fourth crystal diode D4, a seventh capacitor C7, an eighth capacitor C8, a first logic device J1 and a second logic device J2;

[0058] Specifically, the anode of the third crystal diode D3 and the anode of the fourth crystal diode D4 are respectively connected to the IO5 terminal and the IO8 terminal of the central processing unit U1, the cathode of the third crystal diode D3 is connected to the A terminal of the first logic device J1 and is grounded through the eighth capacitor C8, the cathode of the fourth crystal diode D4 is connected to the A terminal of the second logic device J2 and is grounded through the seventh capacitor C7, the B terminal of the first logic device J1 and the B terminal of the second logic device J2 are both connected to the output terminal of the first comparison device A1, the F terminal of the first logic device J1 is connected to the gate of the fourth semiconductor device Q4 and the second end of the fourth resistor R4, and the F terminal of the second logic device J2 is connected to the gate of the second semiconductor device Q2 and the second end of the first resistor R1.

[0059] In a specific embodiment, the third crystal diode D3 and the eighth capacitor C8 perform rectification and filtering processing on the third pulse signal output from the IO5 terminal of the central processing unit U1, and the fourth crystal diode D4 and the seventh capacitor C7 perform rectification and filtering processing on the sixth pulse signal output from the IO8 terminal of the central processing unit U1; the first logic device J1 and the second logic device J2 can both use AND gate chips.

[0060] Further, the inverter module 5 includes a fifth semiconductor device Q5, a sixth semiconductor device Q6, a seventh semiconductor device Q7 and an eighth semiconductor device Q8; the output module 9 includes a third inductor L3, a sixth capacitor C6 and an output port;

[0061] Specifically, the collector of the fifth semiconductor device Q5 is connected to the emitter of the first semiconductor device Q1, the collector of the sixth semiconductor device Q6 is connected to the emitter of the third semiconductor device Q3, the emitter of the fifth semiconductor device Q5 is connected to the collector of the eighth semiconductor device Q8 and is connected to one end of the sixth capacitor C6 and one end of the output port through the third inductor L3, the emitter of the sixth semiconductor device Q6 is connected to the collector of the seventh semiconductor device Q7, the other end of the sixth capacitor C6 and the other end of the output port, the emitter of the eighth semiconductor device Q8 is connected to the emitter of the seventh semiconductor device Q7 and the second end of the first capacitor C1, and the gate of the fifth semiconductor device Q5, the gate of the sixth semiconductor device Q6, the gate of the seventh semiconductor device Q7 and the gate of the eighth semiconductor device Q8 are respectively connected to the IO5 terminal, IO6 terminal, IO7 terminal and IO8 terminal of the central processing unit U1.

[0062] In a specific embodiment, the fifth semiconductor device Q5, the sixth semiconductor device Q6, the seventh semiconductor device Q7 and the eighth semiconductor device Q8 can all be IGBTs, which are respectively controlled by the third pulse signal output from the IO5 terminal of the central processor U1, the fifth pulse signal output from the IO6 terminal, the fourth pulse signal output from the IO7 terminal and the sixth pulse signal output from the IO8 terminal.

[0063] Furthermore, an embodiment of the present invention also provides a power supply guarantee control system based on power supply data, and the system includes the power supply guarantee control circuit based on power supply data described in the above aspect.

[0064] In a power supply guarantee control circuit based on power supply data in this embodiment, AC power is connected to the power supply port, the full-wave rectifier T1 and the first capacitor C1 perform rectification and filtering on the AC power, the central processor U1 adjusts the second voltage threshold according to the required power supply data, when the required power is lower than the first voltage threshold, that is, the second voltage threshold is less than the first voltage threshold, the first comparison device A1 outputs a low level, at which time the first semiconductor device Q1 and the second semiconductor device Q2 are turned on, the IO1 terminal of the central processor U1 outputs a first pulse signal and controls the conduction state of the first field effect transistor M1, and cooperates with the first inductor L1 and the first crystal diode D1 to perform boost The IO2 terminal of the central processor U1 outputs a second pulse signal and controls the conduction state of the second field effect transistor M2, cooperates with the second inductor L2 and the second crystal diode D2 to perform the boost work, and the IO5 terminal, IO6 terminal, IO7 terminal and IO8 terminal of the central processor U1 respectively control the conduction states of the fifth semiconductor device Q5, the sixth semiconductor device Q6, the seventh semiconductor device Q7 and the eighth semiconductor device Q8, and then realizes the inversion work. Specifically, when the fifth semiconductor device Q5 and the seventh semiconductor device Q7 are turned on, the first regulating module 2 performs the boost and power supply, and the sixth semiconductor device Q6 and the eighth semiconductor device Q8 are turned on. When the required electric energy is greater than the first voltage threshold, the first comparison device A1 will output a high level, so that the IO4 terminal of the central processor U1, the B terminal of the first logic device J1 and the B terminal of the second logic device J2 become high levels. At this time, when the central processor U1 controls the fifth semiconductor device Q5 to be turned on, the A terminal of the first logic device J1 becomes high level, the F terminal of the first logic device J1 controls the fourth semiconductor device Q4 and the fourth transistor to be turned on, and the central processor U1 controls the first field effect transistor M1 to work while controlling the second field effect transistor M2 to work. The body tube M2 works, so that the first regulating module 2 and the second regulating module 3 perform boosting work together, and the electric energy output by the second regulating module 3 is stored by the second capacitor C2. Since the third capacitor C3 is connected in series with the second electric energy, the electric energy output by the second regulating module 3 compensates for the electric energy output by the first regulating module 2, so as to meet a larger power supply range. Similarly, when the central processing unit U1 controls the eighth semiconductor device Q8 to be turned on, the second logic device controls the second semiconductor device Q2 and the first transistor V1 to be turned on, and the electric energy output by the first regulating module 2 compensates for the electric energy output by the second regulating module 3, and finally is inverted through the inverter module 5.

[0065] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A power supply guarantee control circuit based on power supply data, characterized in that: The power supply guarantee control circuit based on power supply data includes: a power supply module, a first adjustment module, a second adjustment module, a path control module, an inverter module, a central control module, a voltage range detection module, a drive control module and an output module; The power module is used to receive AC power and perform rectification and filtering on the AC power to output the first power; The first regulating module is connected to the central control module, the drive control module, the power module, the path control module and the inverter module, and is used to boost the first electric energy and output the second electric energy when receiving the first pulse signal output by the central control module, transmit the second electric energy to the path control module when receiving the first drive signal output by the drive control module, and compensate the third electric energy with the second electric energy when receiving the third electric energy transmitted by the path control module, and transmit the second electric energy or the compensated electric energy to the inverter module; The second regulating module is connected to the central control module, the drive control module, the power module, the path control module and the inverter module, and is used to boost and regulate the first electric energy and output the third electric energy when receiving the second pulse signal output by the central control module, transmit the third electric energy to the path control module when receiving the second drive signal output by the drive control module, and compensate the second electric energy with the third electric energy when receiving the second electric energy transmitted by the path control module, and transmit the third electric energy or the compensated electric energy to the inverter module; The passage control module is connected to the drive control module and is used to transmit the second electric energy to the second regulating module when receiving the first drive signal output by the drive control module, and transmit the third electric energy to the first regulating module when receiving the second drive signal output by the drive control module; The inverter module is connected to the central control module and is used to invert the second electric energy, the third electric energy, the electric energy output after compensation by the first regulating module or the electric energy output after compensation by the second regulating module when receiving the third pulse signal, the fourth pulse signal, the fifth pulse signal and the sixth pulse signal output by the central control module; The central control module is connected to the voltage range detection module, and is used to output a third pulse signal, a fourth pulse signal, a fifth pulse signal, and a sixth pulse signal and control the operation of the inverter module, output a first pulse signal when outputting the third pulse signal and the fifth pulse signal, and output a second pulse signal when outputting the fourth pulse signal and the sixth pulse signal, and output a first adjustment signal according to the power supply data, and adjust the duty cycle of the first pulse signal or the second pulse signal when receiving the first level signal output by the voltage range detection module; The voltage range detection module is used to set a first voltage threshold, and when receiving a first adjustment signal, set a second voltage threshold, and output a first level signal when the second voltage threshold is greater than the first voltage threshold; The drive control module is connected to the voltage range detection module, and is used to perform rectification and filtering on the third pulse signal and the fifth pulse signal, and output the second drive signal when receiving the third pulse signal and the first level signal, and output the first drive signal when receiving the sixth pulse signal and the first level signal; The output module is connected to the inverter module and is used for filtering the electric energy output by the inverter module.

2. A power supply guarantee control circuit based on power supply data according to claim 1, characterized in that: The power supply module includes a power supply port, a full-wave rectifier and a first capacitor; the first regulating module includes a first inductor, a first field effect transistor, a first crystal diode, a third capacitor, a second capacitor, a second resistor, a first triode, a first semiconductor device and a first resistor; the central control module includes a central processing unit; The first end and the second end of the power supply port are respectively connected to the first end and the second end of the full-wave rectifier, the third end of the full-wave rectifier is connected to the first end of the first capacitor and one end of the first inductor, the other end of the first inductor is connected to the drain of the first field effect transistor and the anode of the first crystal diode, the cathode of the first crystal diode is connected to the collector of the first semiconductor device and the first end of the third capacitor and is connected to the gate of the first semiconductor device and the collector of the first transistor through the second resistor, the second end of the third capacitor is connected to the source of the first field effect transistor, the emitter and the ground of the first transistor through the second capacitor, the base of the first transistor is connected to the first end of the first resistor, the second end of the first resistor is connected to the drive control module, the gate of the first field effect transistor is connected to the IO1 end of the central processing unit, and the emitter of the first semiconductor device is connected to the inverter module.

3. A power supply guarantee control circuit based on power supply data according to claim 2, characterized in that: The second regulating module includes a second inductor, a second field effect transistor, a second crystal diode, a fifth capacitor, a fourth capacitor, a third resistor, a third semiconductor device, a fourth resistor and a second triode; One end of the second inductor is connected to the first end of the first capacitor, the other end of the second inductor is connected to the drain of the second field effect transistor and the anode of the second crystal diode, the gate of the second field effect transistor is connected to the IO2 end of the central processing unit, the emitter of the third semiconductor device is connected to the inverter module, the gate of the third semiconductor device is connected to the collector of the second transistor and connected to one end of the fourth capacitor, the cathode of the second crystal diode and the collector of the third semiconductor device through the third resistor, the second end of the fourth capacitor is connected to the source of the second field effect transistor, the emitter of the second transistor and the ground through the fifth capacitor, the base of the second transistor is connected to the first end of the fourth resistor, and the second end of the fourth resistor is connected to the drive control module.

4. A power supply guarantee control circuit based on power supply data according to claim 3, characterized in that: The voltage range detection module includes a first constant voltage source, a fifth resistor, a sixth resistor, a seventh resistor, a third field effect transistor, an eighth resistor and a first comparison device; The in-phase end of the first comparison device is connected to the drain of the third field effect transistor and connected to one end of the fifth resistor and the first constant voltage source through the seventh resistor, the other end of the fifth resistor is connected to the inverting end of the first comparison device and grounded through the sixth resistor, the source of the third field effect transistor is grounded through the eighth resistor, the gate of the third field effect transistor is connected to the IO3 end of the central processing unit, and the output end of the first comparison device is connected to the IO4 end of the central processing unit and the output switching module.

5. A power supply guarantee control circuit based on power supply data according to claim 4, characterized in that: The passage control module includes a fourth semiconductor device and a second semiconductor device; The emitter of the fourth semiconductor device is connected to the second end of the third capacitor, the emitter of the second semiconductor device is connected to the second end of the fourth capacitor, the collector of the fourth semiconductor device is connected to the cathode of the second crystal diode, the collector of the second semiconductor device is connected to the cathode of the first crystal diode, and the gate of the second semiconductor device and the gate of the fourth semiconductor device are connected to the drive control module.

6. A power supply guarantee control circuit based on power supply data according to claim 5, characterized in that: The drive control module includes a third crystal diode, a fourth crystal diode, a seventh capacitor, an eighth capacitor, a first logic device and a second logic device; The anode of the third crystal diode and the anode of the fourth crystal diode are respectively connected to the IO5 terminal and the IO8 terminal of the central processing unit, the cathode of the third crystal diode is connected to the A terminal of the first logic device and is grounded through the eighth capacitor, the cathode of the fourth crystal diode is connected to the A terminal of the second logic device and is grounded through the seventh capacitor, the B terminal of the first logic device and the B terminal of the second logic device are both connected to the output terminal of the first comparison device, the F terminal of the first logic device is connected to the gate of the fourth semiconductor device and the second end of the fourth resistor, and the F terminal of the second logic device is connected to the gate of the second semiconductor device and the second end of the first resistor.

7. A power supply guarantee control circuit based on power supply data according to claim 6, characterized in that: The inverter module includes a fifth semiconductor device, a sixth semiconductor device, a seventh semiconductor device and an eighth semiconductor device; the output module includes a third inductor, a sixth capacitor and an output port; The collector of the fifth semiconductor device is connected to the emitter of the first semiconductor device, the collector of the sixth semiconductor device is connected to the emitter of the third semiconductor device, the emitter of the fifth semiconductor device is connected to the collector of the eighth semiconductor device and is connected to one end of the sixth capacitor and one end of the output port through the third inductor, the emitter of the sixth semiconductor device is connected to the collector of the seventh semiconductor device, the other end of the sixth capacitor and the other end of the output port, the emitter of the eighth semiconductor device is connected to the emitter of the seventh semiconductor device and the second end of the first capacitor, and the gate of the fifth semiconductor device, the gate of the sixth semiconductor device, the gate of the seventh semiconductor device and the gate of the eighth semiconductor device are respectively connected to the IO5 terminal, IO6 terminal, IO7 terminal and IO8 terminal of the central processing unit.

8. A power supply guarantee control system based on power supply data, characterized in that: The system comprises a power supply assurance control circuit based on power supply data as claimed in any one of claims 1 to 7.

Images