CN117439106A - Frequency modulation voltage regulation power supply - Google Patents

Frequency modulation voltage regulation power supply Download PDF

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Publication number
CN117439106A
CN117439106A CN202311381089.6A CN202311381089A CN117439106A CN 117439106 A CN117439106 A CN 117439106A CN 202311381089 A CN202311381089 A CN 202311381089A CN 117439106 A CN117439106 A CN 117439106A
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CN
China
Prior art keywords
wave
frequency
voltage
circuit
direct current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311381089.6A
Other languages
Chinese (zh)
Inventor
傅明利
罗兵
徐永生
肖微
卓然
刘磊
杨伟鸿
曾向君
张豪峰
陈少杰
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CSG Electric Power Research Institute
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CSG Electric Power Research Institute
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Filing date
Publication date
Application filed by CSG Electric Power Research Institute filed Critical CSG Electric Power Research Institute
Priority to CN202311381089.6A priority Critical patent/CN117439106A/en
Publication of CN117439106A publication Critical patent/CN117439106A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
    • H02J3/241—The oscillation concerning frequency
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
    • H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

The utility model discloses a frequency modulation voltage regulation power supply, this power supply can include the direct current generation circuit that is used for producing the direct current wave that is filtered and decoupled, be used for according to the frequency regulation and control instruction that the terminal issued, confirm the target frequency, and produce the signal generation circuit of the PWM drive signal that the target frequency matches, be used for under the control of PWM drive signal the inverter circuit that is used for converting the direct current wave into square wave, be used for converting the square wave into the sine wave, and adjust the voltage of sine wave, form the resonant circuit of sine output wave that is used for supplying power for load circuit and be used for confirming the frequency and the voltage of sine output wave, and report the frequency and the voltage of sine output wave to the terminal, in order to regulate and control the voltage and the monitoring circuit of frequency of sine output wave; therefore, the frequency modulation voltage regulation power supply improves output accuracy, and compared with the knob adjusting frequency, the frequency adjustment operability is stronger and simpler.

Description

Frequency modulation voltage regulation power supply
Technical Field
The application relates to the technical field of power supplies, in particular to a frequency modulation and voltage regulation power supply.
Background
In high frequency device applications, most loads require a regulated and frequency modulated power supply. In the prior art, the voltage and frequency regulating power supply determines the frequency regulating requirement of a user by responding to the operation of rotating the frequency regulating knob by the user, generates a sinusoidal signal meeting the frequency requirement, and amplifies the sinusoidal signal through a high-end amplifier to realize voltage and frequency regulation. However, the frequency modulation is realized through the knob, so that accurate frequency modulation is difficult to realize, the accuracy of the frequency modulation performance of the voltage-adjustable and frequency-adjustable power supply is low, and the application requirements of high-frequency equipment are difficult to meet.
The above information disclosed in the background section is only for enhancement of understanding of the background of the application and therefore may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
In view of this, the present application provides a frequency modulation and voltage regulation power supply for solving the disadvantage that it is difficult to realize accurate frequency modulation in the prior art.
In order to achieve the above object, the following solutions have been proposed:
a frequency modulation and voltage regulation power supply comprises a direct current generation circuit, a signal generation circuit, an inverter circuit, a resonance circuit and a monitoring circuit;
the direct current generation circuit is used for generating a filtered and decoupled direct current wave;
the signal generation circuit is used for determining a target frequency according to a frequency regulation instruction issued by the terminal and generating a PWM driving signal matched with the target frequency;
the inverter circuit is used for converting the direct current wave into a square wave under the control of the PWM driving signal, and the frequency of the square wave is the target frequency;
the resonance circuit is used for converting the square wave into a sine wave and adjusting the voltage of the sine wave to form a sine output wave for supplying power to the load circuit;
the monitoring circuit is used for determining the frequency and the voltage of the sine output wave and reporting the frequency and the voltage of the sine output wave to the terminal so as to regulate and control the voltage and the frequency of the sine output wave.
Optionally, the signal generating circuit includes a PWM signal generating circuit and an isolation driving circuit;
the PWM signal generating circuit comprises a serial port USART and a wireless communication module nrf24l201;
the isolation driving circuit comprises a photoelectric isolation driving module HCPL-316J;
the PWM signal generating circuit is used for receiving a frequency regulation instruction issued by the terminal through a serial port USART; analyzing the frequency regulation and control instruction through a wireless communication module nrf24l201, determining a target frequency, and generating a PWM signal matched with the target frequency;
the isolation driving circuit is used for utilizing the photoelectric isolation driving module HCPL-316J to carry out circuit isolation and amplify PWM signals to form PWM driving signals.
Optionally, the inverter circuit comprises an H-bridge consisting of four MOSFET modules;
the H bridge is used for converting the direct current wave into a square wave under the control of the PWM driving signal, and the frequency of the square wave is the target frequency.
Optionally, the signal generating circuit includes a first resistor and a second resistor;
the signal generating circuit is also used for adjusting the on-off speed of the MOSFET module through the first resistor and the second resistor.
Optionally, the resonant circuit includes an inductance, a capacitance, and a third resistance;
the inductor and the capacitor are used for generating resonance and converting the square wave into a sine wave;
and the third resistor is used for adjusting the voltage of the sine wave to form the sine output wave.
Optionally, the monitoring circuit includes a sensor and a communication module;
the sensor is used for collecting the frequency and the voltage of the sine output wave in real time;
and the communication module is used for reporting the frequency and the voltage of the sine output wave to the terminal so as to regulate and control the voltage and the frequency of the sine output wave.
Optionally, the direct current generating circuit includes an input current module, a filtering module, and a decoupling module:
the input current module is used for providing direct current input waves for the frequency modulation and voltage regulation power supply;
the filtering module is used for filtering the direct current input wave;
the decoupling module is used for decoupling the filtered direct current input wave to form the filtered and decoupled direct current wave.
Optionally, the input current module comprises an alternating current input unit, a rectifying unit and a direct current linear voltage stabilizing unit;
the alternating current input unit is used for being connected with an alternating current end to input alternating current waves for the frequency modulation and voltage regulation power supply;
the rectification unit is used for rectifying the alternating current wave into a target direct current wave;
the direct current linear voltage stabilizing unit is used for carrying out linear voltage stabilization on the target direct current wave to form a direct current input wave.
Optionally, the rectifying unit includes a rectifying bridge and a large capacitor;
the rectification unit is used for rectifying the alternating current wave into a target direct current wave through a rectification bridge and a large capacitor.
Optionally, the direct-current linear voltage stabilizing unit comprises a triode, an isolation operational amplifier circuit, a subtracter and a rail-to-rail operational amplifier;
the direct current linear voltage stabilizing unit is used for carrying out linear voltage stabilization on the target direct current wave through the triode, the isolation operational amplifier circuit, the subtracter and the rail-to-rail operational amplifier to form a direct current input wave.
According to the technical scheme, the frequency and voltage modulation power supply can comprise a direct current generation circuit, a signal generation circuit, an inverter circuit, a resonance circuit and a monitoring circuit; the direct current generation circuit can be used for generating a filtered and decoupled direct current wave; the signal generation circuit can be used for determining target frequency according to a frequency regulation instruction issued by the terminal and generating a PWM driving signal matched with the target frequency; therefore, the user can directly issue the frequency regulation instruction to realize the frequency controllability, and meanwhile, the frequency regulation instruction has strong operability and higher accuracy; the inverter circuit is used for converting the direct current wave into a square wave under the control of the PWM driving signal, and the frequency of the square wave is the target frequency; the combination of the signal generating circuit, the direct current generating circuit and the inversion circuit can realize the frequency controllability of the output current, improve the frequency regulation accuracy and operability of the frequency modulation and voltage regulation power supply and is simple to operate; the resonance circuit is used for converting the square wave into a sine wave and adjusting the voltage of the sine wave to form a sine output wave for supplying power to the load circuit; thus, a sine output wave with adjustable frequency and adjustable voltage can be generated; the monitoring circuit is used for determining the frequency and the voltage of the sine output wave and reporting the frequency and the voltage of the sine output wave to the terminal so as to regulate and control the voltage and the frequency of the sine output wave; in this way, the frequency of the sinusoidal output wave and the accuracy of the voltage can be further improved by the monitoring circuit. Therefore, the frequency modulation voltage regulation power supply further improves the accuracy of the output sine output wave, and compared with the knob adjusting frequency, the frequency adjustment operability is stronger and simpler.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of a fm voltage regulator disclosed in an embodiment of the present application;
fig. 2 is a circuit diagram of a combination dc generation circuit, a signal generation circuit, an inverter circuit and a resonant circuit according to an embodiment of the present application;
fig. 3 is a circuit diagram of a rectifying unit according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a terminal operation interface according to an embodiment of the present disclosure;
FIG. 5 is a circuit diagram of an isolated driving circuit according to an embodiment of the present disclosure;
fig. 6 is a circuit diagram of an inverter circuit disclosed in an embodiment of the present application;
fig. 7 is a waveform example diagram of a sinusoidal output wave according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The fm voltage regulator power supply of the present application will be described in detail with reference to fig. 1 and 2.
Referring to fig. 1, it can be found that the fm voltage-regulating power supply of the present application may be composed of a dc generating circuit 1, a signal generating circuit 2, an inverter circuit 3, a resonant circuit 4, and a monitoring circuit 5.
The dc generating circuit 1 may be connected to the inverter circuit 3, the signal generating circuit 2 may be connected to the inverter circuit 3, the inverter circuit 3 may be connected to the resonant circuit 4, and the resonant circuit 4 may be connected to the monitoring circuit 5.
A load may also be connected after the resonant circuit 4.
The dc generation circuit 1 and the inverter circuit 3 may be directly connected, or may be connected through a switching device, and whether the filtered and decoupled dc wave flows into the inverter circuit 3 may be controlled by a switching module.
Wherein the dc generation circuit 1 can be used for generating a filtered and decoupled dc wave;
the signal generating circuit 2 can be used for determining a target frequency according to a frequency regulation instruction issued by a terminal and generating a PWM driving signal matched with the target frequency;
the inverter circuit 3 may be configured to convert the direct current wave into a square wave under the control of the PWM driving signal, where the frequency of the square wave is the target frequency;
the resonant circuit 4 may be configured to convert the square wave into a sine wave and adjust the voltage of the sine wave to form a sine output wave for powering the load circuit;
specifically, the resonant circuit 4 may also receive the voltage regulation command issued by the terminal, analyze the voltage regulation command, determine a target voltage, and regulate the voltage of the sine wave according to the target voltage to form a sine output wave for supplying power to the load circuit.
The monitoring circuit 5 may be configured to determine the frequency and the voltage of the sinusoidal output wave, report the frequency and the voltage of the sinusoidal output wave to the terminal, so as to regulate the voltage and the frequency of the sinusoidal output wave, so that the terminal determines a detection result according to the frequency and the voltage of the sinusoidal output wave, and issue a frequency regulation command and a voltage regulation command according to the detection result. The detection result may indicate whether the frequency of the sinusoidal output wave is a target frequency and the voltage is a target voltage.
The signal generating circuit 2 and the monitoring circuit 5 may communicate with the same terminal.
As can be seen from the above technical solution, the fm voltage-regulating power supply provided in the present application may include a dc generating circuit 1, a signal generating circuit 2, an inverter circuit 3, a resonant circuit 4, and a monitoring circuit 5; the direct current generation circuit 1 can be used for generating a filtered and decoupled direct current wave; the signal generating circuit 2 is used for determining a target frequency according to a frequency regulation instruction issued by the terminal and generating a PWM driving signal matched with the target frequency; therefore, the user can directly issue the frequency regulation instruction to realize the frequency controllability, and meanwhile, the frequency regulation instruction has strong operability and higher accuracy; an inverter circuit 3, configured to convert the direct current wave into a square wave under the control of the PWM driving signal, where the frequency of the square wave is the target frequency; the combination of the signal generating circuit 2, the direct current generating circuit 1 and the inverter circuit 3 can realize the frequency controllability of the output current, improve the frequency regulation accuracy and operability of the frequency modulation voltage regulation power supply and have simple operation; a resonant circuit 4 for converting the square wave into a sine wave and adjusting the voltage of the sine wave to form a sine output wave for supplying power to the load circuit; thus, a sine output wave with adjustable frequency and adjustable voltage can be generated; the monitoring circuit 5 is used for determining the frequency and the voltage of the sine output wave and reporting the frequency and the voltage of the sine output wave to the terminal so as to regulate and control the voltage and the frequency of the sine output wave; in this way, the frequency of the sinusoidal output wave and the accuracy of the voltage can be further improved by the monitoring circuit. Therefore, the frequency modulation voltage regulation power supply further improves the accuracy of the output sine output wave, and compared with the knob adjusting frequency, the frequency adjustment operability is stronger and simpler.
In a specific implementation example of the present application, when the input voltage is [220V-10%,220v+10% ], and the frequency is 50 or 60Hz, the adjustable range of the output voltage of the voltage-regulating and frequency-regulating power supply of the present application may be [0, ±600V ], the adjustable range of the output frequency is [50khz,500khz ], the peak current may be 2A, and the dissipated power may be 1.2kW.
In some embodiments of the present application, the dc generation circuit 1 may include an input current module, a filtering module, and a decoupling module:
the input current module may be used to provide a dc input wave for a frequency modulated voltage regulator.
The filtering module may be configured to filter the dc input wave.
The filtering module may include two large capacitors and two large resistors, and the direct current input wave is filtered through the two large capacitors and the two large resistors.
The decoupling module may be configured to decouple the filtered dc input wave to form a filtered and decoupled dc wave.
The decoupling module may include a decoupling capacitor, and the decoupling capacitor is used to decouple the filtered dc input wave to form a filtered and decoupled dc wave, so as to reduce overshoot, prevent the energy of the parasitic inductance in the loop from being converted into the electric field energy of the GS capacitor, and reduce the oscillation frequency.
As can be seen from the above technical solutions, the present embodiment provides an alternative composition manner of the dc generating circuit 1, by which the filtered and decoupled dc wave can be better generated, and the circuit error is reduced.
In some embodiments of the present application, the input current module may include an ac input unit, a rectifying unit, and a dc linear voltage stabilizing unit;
the alternating current input unit can be used for being connected with an alternating current end to input alternating current waves for the frequency modulation and voltage regulation power supply;
the rectification unit may be used for rectifying the alternating current wave into a target direct current wave;
the direct current linear voltage stabilizing unit can be used for carrying out linear voltage stabilization on the target direct current wave to form a direct current input wave.
From the above technical solution, it can be seen that this embodiment provides an alternative composition mode of the input current module, so as to further better obtain the dc input wave.
Further, the rectifying unit may include a rectifying bridge and a large capacitor;
the rectification unit can be used for rectifying the alternating current wave into a target direct current wave through a rectification bridge and a large capacitor.
The rectifier bridge may be formed of four diodes, as shown in fig. 3. When the positive half part of the alternating current wave is input, two diodes are conducted to obtain the half part of the direct current wave, when the negative half part of the sine wave is input, the other two diodes are conducted to reversely rotate the negative half part to obtain the other half part of the direct current wave; the voltage fluctuation can be reduced through the charge and discharge of the large capacitors connected in parallel, and the linearity and stability of the voltage are realized; the resistor and the capacitor are connected in parallel to form a loop, and charges in the capacitor are discharged.
According to the technical scheme, the alternative composition mode of the rectifying unit is provided, and through the embodiment, alternating current waves can be rectified into direct current waves, and voltage stabilization is achieved.
Further, the direct current linear voltage stabilizing unit can comprise a triode, an isolation operational amplifier circuit, a subtracter and a rail-to-rail operational amplifier;
the direct current linear voltage stabilizing unit can be used for carrying out linear voltage stabilization on the target direct current wave through the triode, the isolation operational amplifier circuit, the subtracter and the rail-to-rail operational amplifier to form a direct current input wave.
According to the technical scheme, the stability of the direct current input wave is further improved through the direct current linear voltage stabilizing unit, so that the stability of the sine output wave is improved.
In some embodiments of the present application, the signal generating circuit 2 may include a PWM signal generating circuit and an isolation driving circuit.
The PWM signal generating circuit can be used for receiving a frequency regulation instruction issued by the terminal through a serial port USART; and analyzing the frequency regulation instruction through a wireless communication module nrf24l201, determining a target frequency, and generating a PWM signal matched with the target frequency.
Specifically, the PWM signal generating circuit may include an STM32 single-chip microcomputer and a wireless communication module nrf24l201, where the STM32 single-chip microcomputer may receive a frequency regulation instruction generated by a user setting a frequency on a terminal operation interface shown in fig. 4 through a serial port USART.
The STM32 singlechip can analyze the frequency regulation instruction by utilizing the wireless communication module nrf24l201 to determine the target frequency; and generating the PWM signal with the target frequency matching through a signal providing circuit.
And the isolation driving circuit is used for utilizing the photoelectric isolation driving module HCPL-316J to perform circuit isolation and amplify the PWM signals to form PWM driving signals.
Specifically, the isolation driver circuit may include a photo-isolation driver module HCPL-316J, a plurality of resistors, diodes, inductors, capacitors, and transistors, as shown in FIG. 5.
The isolated driving circuit may use HCPL-316J, a plurality of resistors, diodes, inductors, capacitors, and transistors to perform circuit isolation and amplify the PWM signal to form a PWM driving signal, and provide sufficient driving voltage for the MOSFET module of the inverter circuit 3.
From the above technical solutions, it can be seen that this embodiment provides an optional composition manner of the signal generating circuit 3, and in this embodiment, the HCPL-316J has a small volume, flexible design, and perfect protection function, and can better implement the determination of the target frequency and the frequency regulation of the sinusoidal output wave.
In some embodiments of the present application, the inverter circuit 3 may include an H-bridge composed of four MOSFET modules, as shown in fig. 6. W in FIG. 6 1 、W 2 、W 3 W and W 4 Are MOSFET modules.
The H-bridge may be used to convert the dc wave into a square wave at a target frequency under control of the PWM drive signal.
As can be seen from the above technical solution, the present embodiment provides a composition manner of the inverter circuit 3, by which the waveform conversion of the dc wave can be further implemented and the frequency of the dc wave can be adjusted, so as to adjust the dc wave into a square wave according with the frequency requirement.
The first resistor refers to one of the resistors in the isolation driving circuit, and the second resistor refers to the other resistor in the isolation driving circuit.
Referring to fig. 5, the operation principle of the isolation driving circuit is: when the resonant circuit 5 outputs a high level, the MOSFET module drives the protection circuit Q 1 Conduction, Q 2 Cut-off, U GSmos Module voltage = 15v, mosfet module on; when the resonant circuit 5 outputs a low level, Q 1 Cut-off, Q 2 On, ugs= -9v, mosfet module off.
Further, sources of the triodes are respectively connected in series with a first resistor R 8 And a second resistor R 9 Through a first resistor R 8 And a second resistor R 9 And adjusting the on speed and the off speed of the MOSFET module.
With continued reference to FIG. 5, during actual use, when V cc2 Below 13V, UVLO protection and DESAT protection in HCPL-316J are activated simultaneously to keep the voltage output after voltage stabilization at low potential, and MOSFET modules in inverter circuit 3 are deactivated to avoid too low U GS The MOSFET module is turned on and burned out under voltage. When MOSFET module is turned on, overcurrent occurs, U CE Sharply rise to recover the first diode D 1 Second diode D 2 U and U DS Is a value of (2). If the input voltage of the DESAT terminal exceeds the set protection voltage, the desaturation protection circuit starts to work, the HCPL-316J locks low-level output and turns off the MOSFET module, meanwhile, the FAULT outputs low level, and an error signal is output through an external circuit to turn off the MOSFET module.
In some embodiments of the present application, the resonant circuit 4 may include an inductance, a capacitance, and a third resistance.
The third resistance refers to a resistance arranged in the resonant circuit.
The inductance and the capacitance may be used to generate resonance, converting the square wave into a sine wave.
The resonance frequency of the capacitor and the inductor can be consistent with the target frequency, and the square wave at the target frequency is converted into a sine wave at the target frequency through resonance conversion of the waveform of the square wave.
The third resistor may be used to regulate the voltage of the sine wave at the target frequency, forming a sine output wave at the target frequency and at the target voltage.
From the above technical solution, it can be seen that this embodiment provides an optional composition mode of the resonant circuit 4, and by using the above mode, the waveform and the voltage can be adjusted by using the resonant circuit 4 of the present application, so as to better implement the voltage adjusting function of the present application.
In some embodiments of the present application, the monitoring circuit 5 may include a sensor and a communication module.
A sensor may be used to acquire the frequency of the sinusoidal output wave in real time as well as the voltage.
Specifically, a waveform diagram of the sinusoidal output wave may be as shown in fig. 7, and the frequency and voltage of the sinusoidal output wave may be acquired in real time by different types of sensors.
The communication module can be used for reporting the frequency and the voltage of the sine output wave to the terminal so as to regulate and control the voltage and the frequency of the sine output wave.
The communication module can be configured with a wireless communication chip, and the voltage and the frequency of the sine output wave can be reported to the terminal through the wireless communication chip.
From the above technical solution, it can be seen that this embodiment provides an optional composition mode of the monitoring circuit 5, and through the above monitoring circuit 5, the real-time monitoring of the voltage and frequency of the sinusoidal output wave can be realized, so as to further improve the reliability of the frequency regulation command and the voltage regulation command issued by the terminal, and improve the accuracy of the regulation voltage and frequency of the application.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Various embodiments of the present application may be combined with one another. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The frequency and voltage modulation power supply is characterized by comprising a direct current generation circuit, a signal generation circuit, an inverter circuit, a resonance circuit and a monitoring circuit;
the direct current generation circuit is used for generating a filtered and decoupled direct current wave;
the signal generation circuit is used for determining a target frequency according to a frequency regulation instruction issued by the terminal and generating a PWM driving signal matched with the target frequency;
the inverter circuit is used for converting the direct current wave into a square wave under the control of the PWM driving signal, and the frequency of the square wave is the target frequency;
the resonance circuit is used for converting the square wave into a sine wave and adjusting the voltage of the sine wave to form a sine output wave for supplying power to the load circuit;
the monitoring circuit is used for determining the frequency and the voltage of the sine output wave and reporting the frequency and the voltage of the sine output wave to the terminal so as to regulate and control the voltage and the frequency of the sine output wave.
2. The fm voltage regulator power supply according to claim 1, wherein said signal generation circuit comprises a PWM signal generation circuit and an isolation drive circuit;
the PWM signal generating circuit comprises a serial port USART and a wireless communication module nrf24l201;
the isolation driving circuit comprises a photoelectric isolation driving module HCPL-316J;
the PWM signal generating circuit is used for receiving a frequency regulation instruction issued by a terminal through the USART; analyzing the frequency regulation instruction through the wireless communication module nrf24l201, determining a target frequency, and generating a PWM signal matched with the target frequency;
the isolation driving circuit is used for utilizing the photoelectric isolation driving module HCPL-316J to perform circuit isolation and amplify PWM signals to form PWM driving signals.
3. The fm voltage regulator power supply according to claim 1, wherein said inverter circuit comprises an H-bridge of four MOSFET modules;
the H bridge is used for converting the direct current wave into a square wave under the control of the PWM driving signal, and the frequency of the square wave is the target frequency.
4. A fm voltage regulator power supply according to claim 3, wherein said signal generating circuit comprises a first resistor and a second resistor;
the signal generating circuit is also used for adjusting the on-off speed of the MOSFET module through the first resistor and the second resistor.
5. The fm voltage regulator power supply according to claim 1, wherein said resonant circuit includes an inductor, a capacitor, and a third resistor;
the inductor and the capacitor are used for generating resonance and converting the square wave into a sine wave;
and the third resistor is used for adjusting the voltage of the sine wave to form the sine output wave.
6. The fm voltage regulator power supply according to claim 1, wherein said monitoring circuit includes a sensor and a communication module;
the sensor is used for collecting the frequency and the voltage of the sine output wave in real time;
and the communication module is used for reporting the frequency and the voltage of the sine output wave to the terminal so as to regulate and control the voltage and the frequency of the sine output wave.
7. The fm voltage regulator power supply according to claim 1, wherein said dc generation circuit comprises an input current module, a filter module, and a decoupling module:
the input current module is used for providing direct current input waves for the frequency modulation and voltage regulation power supply;
the filtering module is used for filtering the direct current input wave;
the decoupling module is used for decoupling the filtered direct current input wave to form the filtered and decoupled direct current wave.
8. The frequency modulation voltage regulation power supply of claim 7, wherein the input current module comprises an ac input unit, a rectifying unit and a dc linear voltage stabilizing unit;
the alternating current input unit is used for being connected with an alternating current end to input alternating current waves for the frequency modulation and voltage regulation power supply;
the rectification unit is used for rectifying the alternating current wave into a target direct current wave;
the direct current linear voltage stabilizing unit is used for carrying out linear voltage stabilization on the target direct current wave to form a direct current input wave.
9. The fm voltage regulator power supply according to claim 8, wherein said rectifying unit comprises a rectifier bridge and a large capacitor;
the rectification unit is used for rectifying the alternating current wave into a target direct current wave through a rectification bridge and a large capacitor.
10. The fm voltage regulator power supply according to claim 8, wherein said dc linear voltage regulator unit comprises a transistor, an isolated op-amp circuit, a subtractor and a rail-to-rail operational amplifier;
the direct current linear voltage stabilizing unit is used for carrying out linear voltage stabilization on the target direct current wave through the triode, the isolation operational amplifier circuit, the subtracter and the rail-to-rail operational amplifier to form a direct current input wave.
CN202311381089.6A 2023-10-24 2023-10-24 Frequency modulation voltage regulation power supply Pending CN117439106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311381089.6A CN117439106A (en) 2023-10-24 2023-10-24 Frequency modulation voltage regulation power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311381089.6A CN117439106A (en) 2023-10-24 2023-10-24 Frequency modulation voltage regulation power supply

Publications (1)

Publication Number Publication Date
CN117439106A true CN117439106A (en) 2024-01-23

Family

ID=89549189

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311381089.6A Pending CN117439106A (en) 2023-10-24 2023-10-24 Frequency modulation voltage regulation power supply

Country Status (1)

Country Link
CN (1) CN117439106A (en)

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