CN218825333U - Voltage regulating circuit and system - Google Patents
Voltage regulating circuit and system Download PDFInfo
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- CN218825333U CN218825333U CN202223163876.7U CN202223163876U CN218825333U CN 218825333 U CN218825333 U CN 218825333U CN 202223163876 U CN202223163876 U CN 202223163876U CN 218825333 U CN218825333 U CN 218825333U
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- 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
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Abstract
The utility model relates to the technical field of electronic circuits, in particular to a voltage regulating circuit and a system, which comprises an input unit, a voltage regulating circuit and a voltage regulating circuit, wherein the input unit is used for acquiring an input electric signal; the transformer unit is connected with the input unit and is used for performing voltage transformation on the input electric signal; the output unit is connected with the transformer unit and used for rectifying the input electric signal after voltage conversion to obtain a target electric signal; the voltage sampling unit is connected with the output unit and is used for sampling the voltage of the output unit to obtain a sampling electric signal; and the main control unit is respectively connected with the transformer unit and the voltage sampling unit and used for acquiring voltage regulating information and the sampling electric signal and carrying out feedback regulation on the transformer unit according to the voltage regulating information and/or the sampling electric signal. The electric signal can be adjusted to the target electric signal in a self-adaptive manner according to the obtained adjusting information and/or by adopting the electric signal to perform feedback adjustment on the transformer unit.
Description
Technical Field
The utility model relates to an electronic circuit technical field especially relates to a voltage regulation circuit and system.
Background
At present, in some circuit systems, it is generally required to change the magnitude of the output energy of the energy module by changing the voltage applied to the energy module, so as to realize different application functions. However, manually constructing different circuits to generate different voltages requires a lot of manpower and material resources, resulting in inefficient operation of the system. Meanwhile, with the development of the technology level, the requirements of the circuit system on the accuracy and stability of the voltage are higher and higher.
Therefore, how to provide a circuit capable of adaptively adjusting the output voltage according to the related control information is a technical problem to be solved.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a voltage regulating circuit and system for adaptively regulating an output voltage according to related control information.
A voltage regulating circuit includes an input unit for acquiring an input electrical signal; the transformer unit is connected with the input unit and is used for performing voltage transformation on the input electric signal; the output unit is connected with the transformer unit and used for rectifying the input electric signal after voltage conversion to obtain a target electric signal; the voltage sampling unit is connected with the output unit and is used for sampling the voltage of the output unit to obtain a sampling electric signal; and the main control unit is respectively connected with the transformer unit and the voltage sampling unit and used for acquiring voltage regulating information and the sampling electric signal and carrying out feedback regulation on the transformer unit according to the voltage regulating information and/or the sampling electric signal.
In one embodiment, the input unit comprises a first capacitor, the transformer unit comprises a primary winding, a first secondary winding and a second secondary winding, and the output unit comprises a first diode, a second capacitor and a third capacitor; the first end of the first capacitor is connected with the input end of the input unit, the second end of the first capacitor is grounded, and the first end of the primary winding is also connected with the input end of the input unit; the first end of the first secondary winding is connected with the anode of the first diode, the second end of the first secondary winding is connected with the first end of the second secondary winding, and the second end of the second secondary winding is connected with the cathode of the second diode; the cathode of the first diode is connected with the first end of the second capacitor, and the anode of the second diode is connected with the first end of the third capacitor; the second end of the second capacitor, the second end of the third capacitor, the second end of the first secondary winding and the first end of the second secondary winding are all grounded; the cathode of the first diode and the first end of the second capacitor are both connected with the anode output end of the output unit, and the anode of the second diode and the first end of the third capacitor are both connected with the cathode output end of the output unit.
In one embodiment, the voltage sampling unit comprises a first resistor and a second resistor; the first end of the first resistor is connected with the anode output end of the output unit, the second end of the first resistor is connected with the first end of the second resistor, and the second end of the second resistor is grounded.
In one embodiment, the main control unit comprises a main control unit, a PWM controller, a first switching tube, a third resistor, a voltage feedback operational amplifier and a digital-to-analog conversion module; the main control chip is respectively connected with the first input end of the PWM controller and the digital-to-analog conversion module, the digital-to-analog conversion module is connected with the negative input end of the voltage feedback operational amplifier, and the positive input end of the voltage feedback operational amplifier is connected with the second end of the first resistor; the output end of the voltage feedback operational amplifier is connected with the second input end of the PWM controller, the output end of the PWM controller is connected with the grid electrode of the first switch tube, the current detection pin of the PWM controller is connected with the source electrode of the first switch tube, the drain electrode of the first switch tube is connected with the second end of the primary winding, the source electrode of the first switch tube is further connected with the first end of the third resistor, and the second end of the third resistor is grounded.
In one embodiment, the first switch tube is an N-channel enhancement type MOS field effect tube.
In one embodiment, the voltage regulating circuit further comprises a power module connected to the input unit for providing an input electrical signal.
In one embodiment, the power module is an ultrasonic dedicated power supply.
In one embodiment, the voltage regulating circuit further includes a human-computer interaction unit connected to the main control unit, and the main control unit is configured to obtain the voltage regulating information through the human-computer interaction unit.
In one embodiment, the voltage regulation circuit further includes a communication unit connected to the main control unit, and the main control unit is configured to implement communication with a target system through the communication unit to obtain the voltage regulation information.
A voltage regulation system comprising an energy module; the voltage regulating circuit of any of the above embodiments, connected to the energy module, is configured to provide the target electrical signal to the energy module.
The voltage regulating circuit obtains the input electric signal by using the input unit, performs voltage conversion on the input electric signal by using the transformer unit, and the output unit rectifies the electric signal after voltage conversion to obtain the target electric signal. Meanwhile, the voltage sampling unit samples the output unit in real time to obtain a sampling electric signal. And the main control unit performs feedback regulation on the transformer unit according to the obtained regulation information and/or by adopting an electric signal. The electric signal output by the output unit can be adaptively adjusted to a target amplitude according to the adjustment information. In addition, the voltage sampling is carried out on the output end, the internal self-adaptive feedback regulation can be realized, the voltage regulation circuit can be ensured to output stably, and therefore a stable and accurate target electric signal is provided.
Drawings
In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the specification, and other drawings can be obtained by those skilled in the art without inventive labor.
FIG. 1 is a schematic diagram of a voltage regulation circuit according to an embodiment of the present disclosure;
fig. 2 is a schematic circuit design diagram of a voltage regulating circuit according to an embodiment of the disclosure.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
At present, in some circuit systems, it is generally required to change the magnitude of the output energy of the energy module by changing the voltage applied to the energy module, so as to realize different application functions. Some products also require varying the applied voltage to test the performance of the product during performance testing. Meanwhile, with the development of the technology level, the requirements of the circuit system on the accuracy and stability of the working voltage are higher and higher. However, the current common implementation is to artificially construct different circuits to generate different voltages, which requires a lot of manpower and material resources, resulting in low work efficiency/product testing efficiency of the system.
According to the voltage regulating circuit, the output voltage amplitude and frequency can be adjusted in a self-adaptive mode according to the obtained voltage regulating signal, and therefore the voltage regulating circuit is flexible in application and high in efficiency.
Fig. 1 is a schematic structural diagram of a voltage regulating circuit in one embodiment of the present disclosure, and in one embodiment, the voltage regulating circuit may include an input unit 110, a transformer unit 120, an output unit 130, a voltage sampling unit 140, and a main control unit 150.
The input end of the input unit 110 may be connected to the power module for obtaining the input electrical signal Vin. The transformer unit 120 is connected to the input unit 110 and may be used to perform voltage conversion on an input electrical signal. In some other embodiments, the power module may also be connected to the main control unit 150 for providing power required for the operation of the main control unit 150. The main control unit 150 may also control the power supply module to provide the input electrical signal Vin to the input unit 110.
The transformer unit 120 may utilize the electromagnetic induction principle to achieve the purpose of changing the alternating voltage, and in some embodiments of the present disclosure, the transformer unit 120 may boost or step down the input electrical signal, that is, the transformer unit 120 may be a step-up transformer or a step-down transformer. The turn ratio of the coils of the transformer unit 120 is equal to the voltage ratio, and when the number of turns of the primary coil is less than that of the secondary coil, the transformer is a step-up transformer and can step up the low voltage to a high voltage; when the number of turns of the primary coil is larger than that of the secondary coil, the transformer is a step-down transformer, and the high voltage can be reduced to a low voltage. Therefore, the voltage transformation effect of the transformer unit 120 can be changed in practical applications by adjusting the number of turns of the primary coil and the secondary coil.
The output unit 130 is connected to the transformer unit 120, and may rectify the voltage-converted input electrical signal to obtain a target electrical signal. The output unit 130 can provide HV + and HV-positive and negative symmetric voltages for other functional modules. That is, the voltage regulating circuit provides the electrical signal required for its operation to other external functional modules through the output unit 130, and the output end of the output unit 130 is the output end of the voltage regulating circuit.
The voltage sampling unit 140 is connected to the output unit 130, and can perform voltage sampling on the output end of the output unit 130 to obtain a sampled electrical signal, thereby implementing voltage monitoring on the output unit 130. The main control unit 150 is connected to the voltage sampling unit 140, and the voltage sampling module 240 may transmit the sampled electrical signal to the main control circuit 250 in real time.
The main control unit 150 is further connected to the transformer unit 120, and the main control unit 150 may be configured to obtain voltage regulation information and sample electrical signals. The voltage regulation information may be information for instructing the voltage regulation circuit to regulate the present input electrical signal to the target electrical signal. The main control unit 150 may obtain the voltage regulation information in various ways. For example, the main control unit 150 may pre-store therein voltage regulation information corresponding to different working modes, may obtain the voltage regulation information input by the user in a human-computer interaction manner, and may also obtain the voltage regulation information stored in the cloud in a wireless/wired communication manner.
The main control unit 150 may determine whether the electrical signal output by the output unit 130 meets the output requirement according to the voltage regulation information and the sampling electrical signal collected by the voltage sampling module 240. When the electrical signal output by the output unit 130 does not meet the output requirement, the main control unit 150 can control the magnitude and stable output of the output voltage HV + and HV-of the output unit 130 by controlling the energy storage and release of the transformer unit 120, thereby outputting a more accurate target electrical signal.
The voltage regulating circuit can adaptively regulate the amplitude of the output electric signal according to the voltage regulating information by acquiring the voltage regulating signal, the voltage sampling unit 140 is used for sampling the voltage of the output end and feeding the voltage back to the main control unit 150 in real time, the self-adaptive feedback regulation inside the main control unit can be realized, the voltage regulating circuit can be ensured to stably output the voltage, and a stable and accurate target electric signal is provided for an external functional module. The voltage regulating circuit can adaptively regulate output according to different power requirements in various circuit systems and test systems, so that different electric signals can be provided for each functional module under the conditions of not changing the circuit systems and not changing the circuits.
Fig. 2 is a schematic circuit design diagram of a voltage regulation circuit according to one embodiment of the present disclosure, in which an input end of the input unit 110 may be connected to a power supply module for obtaining an input electrical signal Vin.
The input unit 110 may include an input terminal, a positive output terminal, and a negative output terminal. The input electric signal connected to the input end is Vin, the voltage output by the anode output end is HV +, and the voltage output by the cathode output end is HV-. The input unit 110 may further include a first capacitor C1. The first end of the first capacitor C1 is connected to the input end of the input unit 110, and the power supply module may provide the input electrical signal Vin to the voltage regulating circuit through the input end of the input unit 110. The second end of the first capacitor C1 is grounded, and the first capacitor C1 is an energy storage capacitor and can store the input electrical signal Vin.
The transformer unit 120 may include a primary winding N1, a first secondary winding N2, and a second secondary winding N3, a first end of the primary winding N1 is also connected to the input terminal of the input unit 110, and a second end of the primary winding N1 is connected to the main control unit 150. The first end of the first secondary winding N2 is connected with the anode of the first diode D1, the second end of the first secondary winding N2 is connected with the first end of the second secondary winding N3 in series and then grounded, and the second end of the second secondary winding N3 is connected with the cathode of the second diode D2. An iron core (or a magnetic core) may be further included between the primary winding N1 and the first secondary winding N2 and the second secondary winding N3, and the primary winding N1, the first secondary winding N2 and the second secondary winding N3 are respectively wound on two sides of the iron core.
After the input electrical signal Vin is transmitted to the primary winding N1, the primary winding N1 may store energy of the input unit 110. Meanwhile, an induced electromotive force is generated across the first and second secondary windings N2 and N3. When the number of coil turns of the first secondary winding N2 and the second secondary winding N3 is greater than the number of coil turns of the primary winding N1, the induced electromotive forces on the first secondary winding N2 and the second secondary winding N3 are greater than the voltage on the primary winding N1, so as to boost the input electrical signal Vin and release energy to the output unit 130.
The output unit 130 may include a first diode D1, a second diode D2, a second capacitor C2, and a third capacitor C3. The first diode D1 and the second diode D2 are rectifier diodes for outputting voltages HV + and HV-, respectively, an anode of the first diode D1 is connected in series with the first secondary winding N2 of the transformer unit 120, and a cathode of the second diode D2 is connected in series with the second secondary winding N3 of the transformer unit 120. The first end of the second capacitor C2 is connected to the second end of the first diode D1 and then connected to the positive output terminal of the output unit 130, the second end of the second capacitor C2 is connected to the first end of the third capacitor C3 in series and then grounded, and the second end of the third capacitor C3 is connected to the positive electrode of the second diode D2 and then connected to the negative output terminal of the output unit 130.
The output unit 130 may be a rectifying circuit for converting ac power into dc power. In some embodiments of the present disclosure, the unidirectional conduction performance of the first diode D1 and the second diode D2 is utilized to convert the ac voltages HV + and HV-output by the transformer unit 120 into unidirectional pulsating dc power.
Because the anode of the first diode D1 is connected in series with the first secondary winding N2, when the ac voltage output from the two ends of the first secondary winding N2 is at the positive half-cycle voltage, the first diode D1 is turned on, and the positive half-cycle voltage output from the first secondary winding N2 can charge the second capacitor C2; when the alternating voltage output from the two ends of the first secondary winding N2 is at the negative half-cycle voltage, the first diode D1 is cut off, and the second capacitor C2 stops charging. The cathode of the second diode D2 is connected in series with the second secondary winding N3, so that when the ac voltage output from the two ends of the second secondary winding N3 is at the negative half-cycle voltage, the second diode D2 is turned on, and the negative half-cycle voltage output from the second secondary winding N3 can charge the third capacitor C3; and when the alternating current voltage output from the two ends of the second secondary winding N3 is at the positive half-cycle voltage, the second diode D2 is cut off, and the third capacitor C3 stops charging.
That is, voltages HV + and HV-of opposite polarities are stored in the second capacitor C2 and the third capacitor C3, respectively, and are used as outputs of the rectifier circuit. The voltages HV + and HV-passing through the rectifying circuit are a mixed voltage containing a direct current voltage and an alternating current voltage, and can be transmitted to the external function module through the positive output terminal and the negative output terminal, respectively, to provide a stable target electric signal to the external function module.
In one embodiment, the voltage sampling unit 140 may include a first resistor R1 and a second resistor R2. The first end of the first resistor R1 is connected to the positive output end of the output unit 130, the second end of the first resistor R1 is connected to the first end of the second resistor R2 in series and then connected to the main control unit 150, and the second end of the second resistor R2 is grounded. In some embodiments of the present disclosure, the Voltage sampling unit 140 formed by the first resistor R1 and the second resistor R2 may sample the output Voltage HV + at the positive electrode output end of the output unit 130, and transmit the collected sampling electrical signal VFB (Voltage Feedback) to the main control unit 150.
The main control module 350 may adaptively adjust the magnitudes and stable outputs of the output voltages HV + and HV-of the output circuit 330 by controlling the energy storage and release of the transformer unit 120 based on the sampled electrical signal collected by the voltage sampling unit 140 until the output voltages HV + and HV-of the output unit 130 are adjusted to the corresponding magnitudes.
In one embodiment, the main control unit 150 may include a main control chip 151, a PWM controller 152, a digital-to-analog conversion chip 153, a first switching tube Q1, a third resistor R3, and a voltage feedback operational amplifier U1.
The second end of the first resistor R1 is connected in series with the first end of the second resistor R2 and then connected to the positive input end of the Voltage Feedback operational amplifier U1, and the Voltage sampling module 340 formed by the first resistor R1 and the second resistor R2 samples the output Voltage HV + at the positive output end of the output unit 130 and transmits the collected sampling electrical signal VFB (Voltage Feedback) to the Voltage Feedback operational amplifier U1.
The negative input end of the voltage feedback operational amplifier U1 is connected To a Digital-To-Analog converter chip 153 (DAC). The main control chip 151 is connected to a first input terminal of the PWM controller 152 and the digital-to-analog conversion chip 153, respectively. The output end of the voltage feedback operational amplifier U1 is connected to the second input end of the PWM controller 152, the output end of the PWM controller 152 is connected to the gate of the first switch Q1, and the current detection pin of the PWM controller 152 is connected to the source of the first switch Q1. The drain electrode of the first switch tube Q1 is connected with the second end of the primary winding N1, the source electrode of the first switch tube Q1 is also connected with the first end of the third resistor R3, and the second end of the third resistor R3 is grounded.
When the ultrasonic ablation system adjusts the target electrical signal output by the voltage regulating module 300 according to the adjustment signal, the main control chip 151 may send a digital voltage regulating signal to the digital-to-analog conversion chip 153 according to the adjustment signal generated by the control module 200. The digital-to-analog conversion chip 153 may generate the voltage regulation reference signal according to the digital voltage regulation signal and transmit the voltage regulation reference signal to the negative input terminal of the voltage feedback operational amplifier U1. The sampling electrical signal VFB of the voltage sampling module 340 is transmitted to the positive input terminal, i.e., the differential signal input terminal pin, of the voltage feedback operational amplifier U1.
The voltage feedback operational amplifier U1 generates an enable control signal according to the voltage regulation reference signal and the sampling electric signal VFB. The enable control signal output by the voltage feedback op-amp U1 is provided to a second input terminal of the PWM controller 152, and the second input terminal of the PWM controller 152 may be a signal feedback pin and a compensation pin. The enable control signal may be used to control an enable switch of the PWM controller 152, which in turn controls the PWM controller 152 to send the PWM signal. The PWM signal sent by the PWM controller 152 may be used to control the first switch Q1 to be turned on or off.
The main control unit 150 is connected to the primary winding N1 of the transformer unit 120 through the first switch Q1, and can change the on or off state of the first switch Q1 to control the energy storage and release of the transformer unit 120. When the first switch tube Q1 is turned on, the input voltage Vin can charge the primary winding N1; when the first switching tube Q1 is turned off, the transformer unit 120 discharges energy to the output unit 130 through the first secondary winding N2. It can be seen that the main control unit 150 completes digital regulation of the output voltages HV + and HV-by controlling the energy storage and release of the transformer unit 120 based on the control signal and the output condition of the output unit 130, thereby implementing precise regulation and stable output of the amplitudes of the output voltages HV + and HV-.
The voltage regulating circuit utilizes the main control unit 150 to adaptively regulate the amplitude of the output electric signal according to the voltage regulating information, and performs voltage sampling on the output end through the voltage sampling unit 140, thereby realizing the internal adaptive feedback regulation and ensuring that the voltage regulating circuit can stably output the accurate electric signal.
In one embodiment, the first switch Q1 may be an N-channel enhancement type MOS fet. The N-channel enhanced MOS field effect transistor is selected as the switching transistor, so that the power supply has the advantages of high input impedance, small driving power, strong anti-interference capability, low power consumption, convenience in voltage control method and the like, is high in switching speed and good in thermal stability, and is suitable for application scenes of realizing treatment effects by utilizing heat energy.
In one embodiment, the voltage regulating circuit may further include a power supply module. The power module is connected to the input unit 110 for providing an input electrical signal. An input of the input circuit 210 may be connected to a power module to obtain an input electrical signal.
In one embodiment, the power module may be a dedicated power supply for ultrasound, and the main control unit 150 may further control the power module to provide the corresponding input electrical signal Vin to the voltage regulating circuit by connecting to the power module, by using the main control unit 150.
When the power module is an ultrasound-specific power supply, the voltage regulation circuit may provide the ultrasound module with electrical signals required for its operation. In the actual working process, the actual working frequencies of different ultrasonic modules may have a certain difference, so that, in order to ensure that the ultrasonic modules can be in the optimal working frequency, the voltage regulating circuit can comprehensively consider the voltage regulating information and the related information of the ultrasonic modules, thereby adaptively regulating the ultrasonic special power supply to ensure that the ultrasonic modules can work at the optimal working frequency.
In one embodiment, the voltage regulating circuit may further include a human-computer interaction module, and the human-computer interaction module is connected to the main control unit 150. The human-computer interaction module can be a touch screen input unit and/or a key control unit, and control information is input into the human-computer interaction module through a touch screen input or key input mode, such as information of a target voltage amplitude value of the voltage regulating circuit.
In one embodiment, the voltage regulation circuit may further include a communication unit, the communication unit is connected to the main control unit 150, and the main control unit 150 is configured to implement communication with the target system through the communication unit to obtain the voltage regulation information. The target system can be an upper computer, a cloud terminal or other systems with pressure regulating information stored therein. The communication unit may be a wired communication unit or a wireless communication unit, and implements wired communication or wireless communication between the main control unit 150 and the target system. For example, the communication connection between the main control unit 150 and the target system is realized through a USB serial port and/or a CAN bus communication mode.
In one embodiment, the voltage regulating circuit may further include a display module. The display module may be connected to the main control unit 150 and may be configured to display the voltage regulation information. After the display module displays the input pressure regulating information, a user can correct the information displayed on the display module, and the input information is prevented from being wrong. Various information can be displayed to the user more simply, conveniently and intuitively through the display module, so that the operation is simplified, and the use experience is optimized.
The present disclosure also provides a voltage regulation system, which in one embodiment may include an energy module and a voltage regulation circuit as described in any of the above embodiments. The voltage regulating circuit is connected with the energy module and can provide target electric signals required by the work/test of the energy module.
When a plurality of groups of energy modules are arranged in the voltage regulating system, the plurality of groups of energy modules are respectively connected with the voltage regulating circuit. And supplying power to each group of energy modules through a voltage regulating circuit. The main control unit 150 adaptively adjusts the output unit 130 according to the voltage regulating signal and the sampling electrical signal acquired by the voltage acquisition unit 140, so that the output unit 130 can provide different electrical signals to each energy module, thereby enabling each energy module to achieve the best working effect, and improving the flexibility, the working efficiency and the treatment efficiency of the system in application.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A voltage regulation circuit, comprising:
an input unit for acquiring an input electrical signal;
the transformer unit is connected with the input unit and is used for performing voltage transformation on the input electric signal;
the output unit is connected with the transformer unit and used for rectifying the input electric signal after voltage conversion to obtain a target electric signal;
the voltage sampling unit is connected with the output unit and is used for sampling the voltage of the output unit to obtain a sampling electric signal;
and the main control unit is respectively connected with the transformer unit and the voltage sampling unit and used for acquiring voltage regulating information and the sampling electric signal and carrying out feedback regulation on the transformer unit according to the voltage regulating information and/or the sampling electric signal.
2. The voltage regulating circuit of claim 1, wherein the input unit comprises a first capacitor, the transformer unit comprises a primary winding, a first secondary winding, and a second secondary winding, and the output unit comprises a first diode, a second capacitor, and a third capacitor;
the first end of the first capacitor is connected with the input end of the input unit, the second end of the first capacitor is grounded, and the first end of the primary winding is also connected with the input end of the input unit; the first end of the first secondary winding is connected with the anode of the first diode, the second end of the first secondary winding is connected with the first end of the second secondary winding, and the second end of the second secondary winding is connected with the cathode of the second diode; the cathode of the first diode is connected with the first end of the second capacitor, and the anode of the second diode is connected with the first end of the third capacitor; the second end of the second capacitor, the second end of the third capacitor, the second end of the first secondary winding and the first end of the second secondary winding are all grounded;
the negative electrode of the first diode and the first end of the second capacitor are connected with the positive electrode output end of the output unit, and the positive electrode of the second diode and the first end of the third capacitor are connected with the negative electrode output end of the output unit.
3. The voltage regulating circuit of claim 2, wherein the voltage sampling unit comprises a first resistor and a second resistor;
the first end of the first resistor is connected with the anode output end of the output unit, the second end of the first resistor is connected with the first end of the second resistor, and the second end of the second resistor is grounded.
4. The voltage regulation circuit of claim 3, wherein the main control unit comprises a main control chip, a PWM controller, a first switching tube, a third resistor, a voltage feedback operational amplifier, and a digital-to-analog conversion module;
the main control chip is respectively connected with the first input end of the PWM controller and the digital-to-analog conversion module, the digital-to-analog conversion module is connected with the negative input end of the voltage feedback operational amplifier, and the positive input end of the voltage feedback operational amplifier is connected with the second end of the first resistor;
the output end of the voltage feedback operational amplifier is connected with the second input end of the PWM controller, the output end of the PWM controller is connected with the grid electrode of the first switch tube, the current detection pin of the PWM controller is connected with the source electrode of the first switch tube, the drain electrode of the first switch tube is connected with the second end of the primary winding, the source electrode of the first switch tube is further connected with the first end of the third resistor, and the second end of the third resistor is grounded.
5. The voltage regulating circuit of claim 4, wherein the first switching transistor is an N-channel enhancement type MOS field effect transistor.
6. The voltage regulating circuit of claim 1, further comprising a power supply module coupled to the input unit for providing an input electrical signal.
7. The voltage regulation circuit of claim 6, wherein the power module is an ultrasonic dedicated power supply.
8. The voltage regulating circuit according to claim 1, further comprising a human-computer interaction unit connected to the main control unit, wherein the main control unit is configured to obtain the voltage regulating information through the human-computer interaction unit.
9. The voltage regulating circuit according to claim 1, further comprising a communication unit connected to the main control unit, wherein the main control unit is configured to communicate with a target system through the communication unit to obtain the voltage regulating information.
10. A voltage regulation system, comprising:
an energy module;
the voltage regulation circuit of any one of claims 1 to 9, connected to the energy module, for providing a target electrical signal to the energy module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223163876.7U CN218825333U (en) | 2022-11-28 | 2022-11-28 | Voltage regulating circuit and system |
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| CN202223163876.7U CN218825333U (en) | 2022-11-28 | 2022-11-28 | Voltage regulating circuit and system |
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| CN218825333U true CN218825333U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223163876.7U Active CN218825333U (en) | 2022-11-28 | 2022-11-28 | Voltage regulating circuit and system |
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| Country | Link |
|---|---|
| CN (1) | CN218825333U (en) |
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2022
- 2022-11-28 CN CN202223163876.7U patent/CN218825333U/en active Active
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