A multifunctional inverter high-efficiency energy-saving control circuit

Abstract

The utility model discloses a multifunctional inverter high-efficiency energy-saving control circuit, which relates to the technical field of multifunctional inverters, including a power module for power supply; a transmission control module for power transmission control; an inverter module for three-phase inverter processing and providing three-phase power to electrical equipment connected to an output module; a charging control module for detecting the power state of the inverter module and the output module, and controlling the energy storage module to store the regenerated power when the inverter module is not performing the inversion work and the output module has regenerated power output; an energy-saving control module for controlling the energy storage module to perform the discharge work and stop the power transmission work of the transmission control module when the energy storage module is fully charged and the inverter module is performing the inversion work, and stopping the discharge work when the energy storage module is low in power. The utility model multifunctional inverter high-efficiency energy-saving control circuit rationally utilizes energy and reduces the power consumption of the power module, and performs energy-saving power supply control on the inverter module.

Description

Technical Field

[0001] The utility model relates to the technical field of multifunctional frequency converters, in particular to a multifunctional frequency converter high-efficiency energy-saving control circuit. Background Art

[0002] A multifunctional frequency converter is a power conversion device, which is mainly composed of rectification (AC to DC), filtering, inversion (DC to AC), braking unit, drive unit, microprocessing unit, etc. It is widely used in fans, water pumps, air conditioners and other industries. When the multifunctional frequency converter in the prior art stops controlling the fan, water pump, etc., it will generate regenerative electrical energy. At this time, the microprocessing unit will control the braking unit to consume the regenerative electrical energy. Since the regenerative energy cannot be automatically and reasonably utilized, it leads to energy waste, so there is room for improvement. Utility Model Content

[0003] The embodiment of the utility model provides a multifunctional inverter high-efficiency energy-saving control circuit to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A multifunctional inverter high-efficiency energy-saving control circuit, comprising: a power module, a transmission control module, an inverter module, an output module, a charging control module, an energy storage module and an energy-saving control module;

[0006] A power module, used for receiving AC power and performing rectification and filtering on the AC power to output first power;

[0007] a transmission control module, connected to the power module and the energy-saving control module, and configured to transmit the first electric energy to the inverter module, and stop transmitting the first electric energy upon receiving a first control signal output by the energy-saving control module;

[0008] an inverter module, connected to the transmission control module and the energy storage module, configured to receive the first electric energy or the electric energy released by the energy storage module and perform three-phase inversion processing to output three-phase electric energy;

[0009] An output module, connected to the inverter module, for receiving three-phase electric energy and supplying power to connected electrical equipment;

[0010] A charging control module connected to the inverter module and the output module, used to detect the power state of the inverter module and the output module, and output a second control signal when the inverter module is not performing an inversion operation and the output module has regenerative power output;

[0011] an energy storage module, connected to the charging control module and the energy-saving control module, for receiving the second control signal and storing the generated regenerative electric energy, and releasing the stored electric energy and supplying power to the inverter module upon receiving the first control signal output by the energy-saving control module;

[0012] The energy-saving control module is used to set a full-power threshold and a low-power threshold, sample the power of the energy storage module, and output a first control signal when the sampled signal is greater than the full-power threshold and the inverter module is performing an inversion operation, and stop outputting the first control signal when the sampled signal is lower than the low-voltage threshold.

[0013] As a further solution of the utility model: the power supply module includes a power supply access port, a first rectifier and a first capacitor; the transmission control module includes a first power tube, a first resistor, a first switch tube and a second resistor;

[0014] Preferably, the first end and the second end of the power access port are respectively connected to the first end and the second end of the first rectifier, the third end of the first rectifier is connected to one end of the first capacitor and the drain of the first power tube and the gate of the first power tube and the collector of the first switching tube through the first resistor, the source of the first power tube is connected to the inverter module, the other end of the first capacitor is connected to the emitter of the first switching tube and the fourth end of the first rectifier, the base of the first switching tube is connected to the first end of the second resistor, and the second end of the second resistor is connected to the energy-saving control module.

[0015] As a further solution of the utility model: the inverter module includes a drive device and a first inverter; the output module includes an output port;

[0016] Preferably, the first end, the second end, the third end, the fourth end, the fifth end and the sixth end of the driving device are respectively connected to the first control end, the second control end, the third control end, the fourth control end, the fifth control end and the sixth control end of the first inverter, the first input end of the first inverter is connected to the source of the first power tube, the second input end of the first inverter is connected to the fourth end of the first rectifier, and the first output end, the second output end and the third output end of the first inverter are respectively connected to the first end, the second end and the third end of the output port.

[0017] As a further solution of the utility model: the charging control module includes a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a first inverter, a second capacitor, a first optocoupler, a third resistor, a first power supply and a first logic chip;

[0018] Preferably, the anode of the first diode, the anode of the second diode, the anode of the third diode, the anode of the fourth diode, the anode of the fifth diode and the anode of the sixth diode are respectively connected to the first end, the second end, the third end, the fourth end, the fifth end and the sixth end of the driving device, the cathode of the first diode is connected to the cathode of the second diode, the anode of the third diode, the cathode of the fourth diode, the cathode of the fifth diode, the cathode of the sixth diode and the input end of the first inverter and are grounded through the second capacitor, the anode of the seventh diode, the anode of the eighth diode and the anode of the ninth diode are respectively connected to the first end, the second end and the third end of the output port, the cathode of the seventh diode is connected to the cathode of the eighth diode, the cathode of the ninth diode and the first end of the first optocoupler, the second end of the first optocoupler is grounded, the third end of the first optocoupler is connected to the first power supply, the fourth end of the first optocoupler is connected to the B end of the first logic chip and is grounded through the third resistor, the output end of the first inverter is connected to the A end of the first logic chip, and the F end of the first logic chip is connected to the energy storage module.

[0019] As a further solution of the utility model: the energy storage module includes a second power tube, a third power tube and an energy storage device;

[0020] Preferably, the source of the second power tube is connected to the first input end of the first inverter, the drain of the second power tube is connected to the drain of the third power tube, the source of the third power tube is connected to the first end of the energy storage device, the second end of the energy storage device is connected to the fourth end of the first rectifier, the gate of the third power tube is connected to the F end of the first logic chip, and the gate of the second power tube is connected to the energy-saving control module.

[0021] As a further solution of the utility model: the energy-saving control module includes a fourth resistor, a fifth resistor, a second power supply, a sixth resistor, a seventh resistor, a first comparator, a second switch tube, an eighth resistor and a second logic chip;

[0022] Preferably, the in-phase end of the first comparator is connected to one end of the fifth resistor and to the first end of the energy storage device through the fourth resistor, the other end of the fifth resistor is connected to the second end of the energy storage device, the inverting end of the first comparator is connected to the collector of the second switching tube and one end of the seventh resistor and to the second power supply through the sixth resistor, the output end of the first comparator is connected to the A end of the second logic chip and the base of the second switching tube, the emitter of the second switching tube is connected to the other end of the seventh resistor and the ground through the eighth resistor, the B end of the second logic chip is connected to the cathode of the first diode, and the F end of the second logic chip is connected to the second end of the second resistor and the gate of the second power tube.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model multifunctional inverter high-efficiency energy-saving control circuit transmits the electric energy output by the power module by the transmission control module, and then the inverter module inverts the electric energy output by the transmission control module to power the output module, and the charging control module can detect the status of the inverter module and the output module, so that when the inverter module stops the inversion work and the output module generates regenerative electric energy, the energy storage module is controlled to store the regenerative electric energy, and when the energy storage module is fully charged and the inverter module is in the inversion work, the energy-saving control module controls the energy storage module to power the inverter module, and controls the transmission control module to cut off the power, so as to reasonably utilize energy and reduce the energy consumption of the power module, and perform energy-saving power supply control on the inverter module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The present invention provides a schematic block diagram of a multifunctional inverter high-efficiency energy-saving control circuit.

[0026] Figure 2 The present invention provides a circuit diagram of a multifunctional inverter high-efficiency energy-saving control circuit.

[0027] Figure 3 This is a connection circuit diagram of the energy-saving control module provided by an example of the utility model. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In one embodiment, see Figure 1 , a multifunctional inverter high-efficiency energy-saving control circuit, comprising: a power module 1, a transmission control module 2, an inverter module 3, an output module 4, a charging control module 5, an energy storage module 6 and an energy-saving control module 7;

[0030] Specifically, the power module 1 is used to receive AC power and perform rectification and filtering on the AC power to output first power;

[0031] The transmission control module 2 is connected to the power module 1 and the energy-saving control module 7, and is used to transmit the first electric energy to the inverter module 3, and stop transmitting the first electric energy when receiving the first control signal output by the energy-saving control module 7;

[0032] The inverter module 3 is connected to the transmission control module 2 and the energy storage module 6, and is used to receive the first electric energy or the electric energy released by the energy storage module 6 and perform three-phase inversion processing to output three-phase electric energy;

[0033] An output module 4, connected to the inverter module 3, for receiving three-phase electric energy and supplying power to connected electrical equipment;

[0034] The charging control module 5 is connected to the inverter module 3 and the output module 4, and is used to detect the power state of the inverter module 3 and the output module 4, and output a second control signal when the inverter module 3 is not performing an inversion operation and the output module 4 has regenerative power output;

[0035] The energy storage module 6 is connected to the charging control module 5 and the energy-saving control module 7, and is used to receive the second control signal and store the generated regenerative electric energy, and when receiving the first control signal output by the energy-saving control module 7, release the stored electric energy and supply power to the inverter module 3;

[0036] The energy-saving control module 7 is used to set the full-power threshold and the low-power threshold, sample the power of the energy storage module 6, and output a first control signal when the sampled signal is greater than the full-power threshold and the inverter module 3 performs inversion operation, and stop outputting the first control signal when the sampled signal is lower than the low-voltage threshold.

[0037] In a specific embodiment, the power supply module 1 can adopt a power supply circuit composed of a power access port, a rectifier and a capacitor, can access AC power and perform rectification and filtering on the AC power; the transmission control module 2 can adopt a transmission control circuit composed of a power tube, a triode and a resistor to control the transmission state of the power; the inverter module 3 can adopt an inverter circuit composed of a three-phase inverter and a drive device to perform three-phase inversion regulation control on the input power; the output module 4 can adopt an output circuit composed of an output port to receive the three-phase power output by the inverter module 3 and power the connected electrical equipment; the charging control module 5 can adopt a diode, a photocoupler, an inverter, a logic The charging control circuit composed of a logic chip, etc. can control the energy storage work of the energy storage module 6 when the inverter module 3 is not performing the inversion work and the output module 4 generates regenerative electric energy; the above-mentioned energy storage module 6 can adopt an energy storage circuit composed of a power tube and an energy storage device to perform energy storage and discharge work; the above-mentioned energy-saving control module 7 can adopt an energy-saving control circuit composed of a resistor, a comparator, a logic chip, a triode, etc., which can perform power sampling, full-charge detection and low-charge detection on the energy storage module 6, and when the energy storage module 6 is fully charged and the inverter module 3 is performing the inversion work, control the power supply of the energy storage module 6 and the power-off of the transmission control module 2, and stop the discharge work of the energy storage module 6 when the energy storage module 6 is low in power.

[0038] In another embodiment, see Figure 1 , Figure 2 and Figure 3 The power module 1 includes a power access port, a first rectifier T1 and a first capacitor C1; the transmission control module 2 includes a first power tube Q1, a first resistor R1, a first switch tube V1 and a second resistor R2;

[0039] Specifically, the first end and the second end of the power access port are respectively connected to the first end and the second end of the first rectifier T1, the third end of the first rectifier T1 is connected to one end of the first capacitor C1 and the drain of the first power tube Q1 and connected to the gate of the first power tube Q1 and the collector of the first switch tube V1 through the first resistor R1, the source of the first power tube Q1 is connected to the inverter module 3, the other end of the first capacitor C1 is connected to the emitter of the first switch tube V1 and the fourth end of the first rectifier T1, the base of the first switch tube V1 is connected to the first end of the second resistor R2, and the second end of the second resistor R2 is connected to the energy-saving control module 7.

[0040] In a specific embodiment, the first power tube Q1 may be an N-channel field effect tube, which is triggered and turned on by the first resistor R1; the first switch tube V1 may be an NPN transistor, which controls the voltage of the gate of the first power tube Q1.

[0041] Further, the inverter module 3 includes a drive device and a first inverter T2; the output module 4 includes an output port;

[0042] Specifically, the first end, the second end, the third end, the fourth end, the fifth end and the sixth end of the driving device are respectively connected to the first control end, the second control end, the third control end, the fourth control end, the fifth control end and the sixth control end of the first inverter T2, the first input end of the first inverter T2 is connected to the source of the first power tube Q1, the second input end of the first inverter T2 is connected to the fourth end of the first rectifier T1, and the first output end, the second output end and the third output end of the first inverter T2 are respectively connected to the first end, the second end and the third end of the output port.

[0043] In a specific embodiment, the above-mentioned driving device can be composed of an STM32 single-chip microcomputer and a push-pull circuit. The STM32 single-chip microcomputer provides the pulse signal required to drive the first inverter T2, and the push-pull circuit improves the driving ability of the driving signal; the above-mentioned first inverter T2 can choose a three-phase inverter composed of six groups of IGBTs.

[0044] Further, the charging control module 5 includes a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5, a sixth diode D6, a seventh diode D7, an eighth diode B8, a ninth diode D9, a first inverter J1, a second capacitor C2, a first optical coupler U1, a third resistor R3, a first power supply VCC1 and a first logic chip J2;

[0045] Specifically, the anode of the first diode D1, the anode of the second diode D2, the anode of the third diode D3, the anode of the fourth diode D4, the anode of the fifth diode D5 and the anode of the sixth diode D6 are connected to the first end, the second end, the third end, the fourth end, the fifth end and the sixth end of the driving device respectively, the cathode of the first diode D1 is connected to the cathode of the second diode D2, the anode of the third diode D3, the cathode of the fourth diode D4, the cathode of the fifth diode D5, the cathode of the sixth diode D6 and the input end of the first inverter J1 and is grounded through the second capacitor C2, and the anode of the seventh diode D7 is connected to the cathode of the second diode D2, the anode of the third diode D3, the cathode of the fourth diode D4, the cathode of the fifth diode D5, the cathode of the sixth diode D6 and the input end of the first inverter J1 and is grounded through the second capacitor C2. The anode of the eighth diode B8 and the anode of the ninth diode D9 are connected to the first end, the second end and the third end of the output port respectively, the cathode of the seventh diode D7 is connected to the cathode of the eighth diode B8, the cathode of the ninth diode D9 and the first end of the first optocoupler U1, the second end of the first optocoupler U1 is grounded, the third end of the first optocoupler U1 is connected to the first power supply VCC1, the fourth end of the first optocoupler U1 is connected to the B end of the first logic chip J2 and is grounded through the third resistor R3, the output end of the first inverter J1 is connected to the A end of the first logic chip J2, and the F end of the first logic chip J2 is connected to the energy storage module 6.

[0046] In a specific embodiment, the first diode D1, the second diode D2, the third diode D3, the fourth diode D4, the fifth diode D5 and the sixth diode D6 respectively rectify the six groups of signals output by the driving device, and filter them uniformly by the second capacitor C2; the first inverter J1 can use a NOT gate chip; the first logic chip J2 can use an AND gate chip; the first optocoupler U1 can use a PC817 photoelectric coupler.

[0047] Further, the energy storage module 6 includes a second power tube Q2, a third power tube Q3 and an energy storage device;

[0048] Specifically, the source of the second power tube Q2 is connected to the first input end of the first inverter T2, the drain of the second power tube Q2 is connected to the drain of the third power tube Q3, the source of the third power tube Q3 is connected to the first end of the energy storage device, the second end of the energy storage device is connected to the fourth end of the first rectifier T1, the gate of the third power tube Q3 is connected to the F end of the first logic chip J2, and the gate of the second power tube Q2 is connected to the energy-saving control module 7.

[0049] In a specific embodiment, the second power tube Q2 and the third power tube Q3 can both be N-channel field effect tubes, wherein the second power tube Q2 controls the discharge operation of the energy storage device, and the third power tube Q3 controls the energy storage operation of the energy storage device; the energy storage device can be a battery pack.

[0050] Furthermore, the energy-saving control module 7 includes a fourth resistor R4, a fifth resistor R5, a second power supply VCC2, a sixth resistor R6, a seventh resistor R7, a first comparator A1, a second switch tube V2, an eighth resistor R8 and a second logic chip J3;

[0051] Specifically, the in-phase end of the first comparator A1 is connected to one end of the fifth resistor R5 and is connected to the first end of the energy storage device through the fourth resistor R4, the other end of the fifth resistor R5 is connected to the second end of the energy storage device, the inverting end of the first comparator A1 is connected to the collector of the second switch tube V2 and one end of the seventh resistor R7 and is connected to the second power supply VCC2 through the sixth resistor R6, the output end of the first comparator A1 is connected to the A end of the second logic chip J3 and the base of the second switch tube V2, the emitter of the second switch tube V2 is connected to the other end of the seventh resistor R7 and the ground through the eighth resistor R8, the B end of the second logic chip J3 is connected to the cathode of the first diode D1, and the F end of the second logic chip J3 is connected to the second end of the second resistor R2 and the gate of the second power tube Q2.

[0052] In a specific embodiment, the fourth resistor R4 and the fifth resistor R5 perform power sampling on the energy storage device; the second power supply VCC2, the sixth resistor R6 and the seventh resistor R7 provide a full power threshold, and when the second switch tube V2 is turned on, the second switch tube V2 and the eighth resistor R8 provide a low power threshold; the first comparator A1 can select an LM358 comparator; the first logic chip J2 can select an AND gate chip.

[0053] In a multifunctional inverter high-efficiency energy-saving control circuit of the present embodiment, AC power is connected to the power access port, the first rectifier T1 and the first capacitor C1 perform rectification and filtering processing on the AC power, the output power triggers the first power tube Q1 to turn on through the first resistor R1, and the first power tube Q1 transmits the processed power to the inverter module 3, and the driving device controls the first inverter T2 to perform three-phase inversion processing on the power transmitted by the first power tube Q1, and then supplies power to the output port. When the power-consuming equipment connected to the output port is a motor equipment such as a fan and a water pump, the output port will generate regenerative power because the driving device stops controlling the first inverter T2 to perform inversion work. At this time, the output end of the first inverter J1 will output a high level, the first optical coupler U1 is turned on and provides a high level to the B end of the first logic chip J2, so that the F end of the first logic chip J2 outputs a high level signal, and controls the third power tube Q3 to turn on, so that the regenerative power generated by the output port passes through the first inverter The energy storage device stores the energy through the fourth resistor R4 and the fifth resistor R5. When the sampled signal is greater than the full power threshold set by the second power supply VCC2, the sixth resistor R6 and the seventh resistor R7, the output end of the first comparator A1 outputs a high-level signal, so that the A end of the second logic chip J3 becomes high-level, and the second switch tube V2 is controlled to be turned on. The eighth resistor R8 is connected in parallel with the seventh resistor R7. At this time, if the driving device controls the inversion work of the first inverter T2, the first diode D1, the second diode D2, the third diode D3, the fourth diode D4, the fifth diode D5 or the sixth diode D6 has electric energy output, so that the B end of the second logic chip J3 becomes high-level, the second logic chip J3 controls the second power tube Q2 and the first switch tube V1 to be turned on, the first power tube Q1 is turned off, and the energy storage device supplies power to the first inverter T2 through the second power tube Q2.

[0054] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0055] 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 multifunctional inverter high-efficiency energy-saving control circuit, characterized in that: The multifunctional inverter high-efficiency energy-saving control circuit comprises: a power supply module, a transmission control module, an inverter module, an output module, a charging control module, an energy storage module and an energy-saving control 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 transmission control module is connected to the power module and the energy-saving control module, and is used to transmit the first electric energy to the inverter module, and stop transmitting the first electric energy when receiving the first control signal output by the energy-saving control module; The inverter module is connected to the transmission control module and the energy storage module, and is used to receive the first electric energy or the electric energy released by the energy storage module and perform three-phase inversion processing to output three-phase electric energy; The output module is connected to the inverter module and is used to receive three-phase electric energy and supply power to the connected electric equipment; The charging control module is connected to the inverter module and the output module, and is used to detect the power state of the inverter module and the output module, and output a second control signal when the inverter module is not performing an inversion operation and the output module has regenerative power output; The energy storage module is connected to the charging control module and the energy-saving control module, and is used to receive the second control signal and store the generated regenerative electric energy, and when receiving the first control signal output by the energy-saving control module, release the stored electric energy and supply power to the inverter module; The energy-saving control module is used to set a full-power threshold and a low-power threshold, sample the power of the energy storage module, and output a first control signal when the sampled signal is greater than the full-power threshold and the inverter module performs an inversion operation, and stop outputting the first control signal when the sampled signal is lower than the low-voltage threshold.

2. A multifunctional inverter high-efficiency energy-saving control circuit according to claim 1, characterized in that: The power supply module includes a power access port, a first rectifier and a first capacitor; the transmission control module includes a first power tube, a first resistor, a first switch tube and a second resistor; The first end and the second end of the power access port are respectively connected to the first end and the second end of the first rectifier, the third end of the first rectifier is connected to one end of the first capacitor and the drain of the first power tube and connected to the gate of the first power tube and the collector of the first switch tube through the first resistor, the source of the first power tube is connected to the inverter module, the other end of the first capacitor is connected to the emitter of the first switch tube and the fourth end of the first rectifier, the base of the first switch tube is connected to the first end of the second resistor, and the second end of the second resistor is connected to the energy-saving control module.

3. A multifunctional inverter high-efficiency energy-saving control circuit according to claim 2, characterized in that: The inverter module includes a driving device and a first inverter; the output module includes an output port; The first end, the second end, the third end, the fourth end, the fifth end and the sixth end of the driving device are respectively connected to the first control end, the second control end, the third control end, the fourth control end, the fifth control end and the sixth control end of the first inverter, the first input end of the first inverter is connected to the source of the first power tube, the second input end of the first inverter is connected to the fourth end of the first rectifier, and the first output end, the second output end and the third output end of the first inverter are respectively connected to the first end, the second end and the third end of the output port.

4. A multifunctional inverter high-efficiency energy-saving control circuit according to claim 3, characterized in that: The charging control module includes a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a first inverter, a second capacitor, a first optocoupler, a third resistor, a first power supply and a first logic chip; The anode of the first diode, the anode of the second diode, the anode of the third diode, the anode of the fourth diode, the anode of the fifth diode and the anode of the sixth diode are respectively connected to the first end, the second end, the third end, the fourth end, the fifth end and the sixth end of the driving device, the cathode of the first diode is connected to the cathode of the second diode, the anode of the third diode, the cathode of the fourth diode, the cathode of the fifth diode, the cathode of the sixth diode and the input end of the first inverter and are grounded through the second capacitor, the anode of the seventh diode, the anode of the eighth diode and the anode of the ninth diode are respectively connected to the first end, the second end and the third end of the output port, the cathode of the seventh diode is connected to the cathode of the eighth diode, the cathode of the ninth diode and the first end of the first optocoupler, the second end of the first optocoupler is grounded, the third end of the first optocoupler is connected to the first power supply, the fourth end of the first optocoupler is connected to the B end of the first logic chip and is grounded through the third resistor, the output end of the first inverter is connected to the A end of the first logic chip, and the F end of the first logic chip is connected to the energy storage module.

5. A multifunctional inverter high-efficiency energy-saving control circuit according to claim 4, characterized in that: The energy storage module includes a second power tube, a third power tube and an energy storage device; The source of the second power tube is connected to the first input end of the first inverter, the drain of the second power tube is connected to the drain of the third power tube, the source of the third power tube is connected to the first end of the energy storage device, the second end of the energy storage device is connected to the fourth end of the first rectifier, the gate of the third power tube is connected to the F end of the first logic chip, and the gate of the second power tube is connected to the energy-saving control module.

6. A multifunctional inverter high-efficiency energy-saving control circuit according to claim 5, characterized in that: The energy-saving control module includes a fourth resistor, a fifth resistor, a second power supply, a sixth resistor, a seventh resistor, a first comparator, a second switch tube, an eighth resistor and a second logic chip; The in-phase end of the first comparator is connected to one end of the fifth resistor and to the first end of the energy storage device through the fourth resistor, the other end of the fifth resistor is connected to the second end of the energy storage device, the inverting end of the first comparator is connected to the collector of the second switching tube and one end of the seventh resistor and to the second power supply through the sixth resistor, the output end of the first comparator is connected to the A end of the second logic chip and the base of the second switching tube, the emitter of the second switching tube is connected to the other end of the seventh resistor and the ground through the eighth resistor, the B end of the second logic chip is connected to the cathode of the first diode, and the F end of the second logic chip is connected to the second end of the second resistor and the gate of the second power tube.

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