79 results about "Capacitive discharge" patented technology

Offline prior to operation, an optimised control sequence is derived for a pulse system comprising a reactive circuit for generating electromagnetic pulses, such as a transcranial magnetic stimulation circuit, and cascaded switching modules for switchably connecting capacitive discharge elements to provide a multi-level output voltage for the reactive circuit. A discrete-time model predicts an electrical state of the pulse system. A target profile for an electromagnetic pulse is received. For respective time-steps of the control sequence taken in succession, an optimal path of switching states over a window of time-steps starting with the respective time-step is derived, optimising a cost function having a deviation cost contribution representing deviation of an electrical state of the pulse system predicted by the discrete-time model from the target profile over the window. The switching state of the determined path at the respective time-step is selected for the control sequence.

The invention discloses a trapezoidal wave current soft switching method of an interleaving DC-DC converter, which is used for a two-phase interleaving bidirectional DC-DC converter based on a coupling inductor and a multi-phase interleaving converter thereof, and is characterized in that an inductive current adopts a trapezoidal wave mode, so that the converter works in an approximate critical conduction mode; a fixed switching frequency control or hybrid control method is adopted, so that the device can work in a Buck mode and can also work in a Boost mode. The method for realizing the soft switching is characterized in that the parasitic capacitance or the external resonant capacitor of the switching tube is discharged to be zero under the resonance action of the inductor and the capacitor in the dead zone time when the upper bridge arm switch and the lower bridge arm switch are alternately switched on, so that the zero-voltage switching-on of all the switching tubes is realized. And each phase current sharing control is adopted in the multi-phase interleaving parallel topological structure. According to the invention, the problems of large current peak value and high turn-off loss of a traditional triangular wave current mode are solved, the output ripple current is reduced, a soft switching method is provided, the switching loss is reduced, and the conversion efficiency of the converter is improved.

The utility model discloses a low-power-consumption high-efficiency main transformer integrated board for an air-cooled refrigerator, which comprises an X capacitor discharge circuit, a variable-frequency power supply circuit, a bus voltage sampling circuit, a mains supply voltage sampling circuit and an IGBT (Insulated Gate Bipolar Translator) driving circuit, and is characterized in that the X capacitor discharge circuit uses a discharge chip to replace a traditional discharge resistor; the variable-frequency power supply circuit is additionally provided with a variable-frequency power supply switch circuit, the bus and commercial power voltage sampling circuit modifies the resistance value of a divider resistor, and the IGBT driving circuit modifies the resistance value of a resistor. According to the utility model, improvement is made on the basis of a traditional air-cooled refrigerator main transformer integrated plate, the standby power consumption and the operation power consumption of the main transformer integrated plate are reduced, and the low-power-consumption and high-efficiency electric control design is realized.

The invention relates to the technical field of energy storage configuration, in particular to a network construction type SVG super capacitor configuration method, system and device based on a direct current side direct-hanging super capacitor and a storage medium. Acquiring grid-connected voltage, target instantaneous active power and continuous discharge time; selecting the specification of a super capacitor monomer, determining a single cluster rated voltage and setting a branch current-limiting threshold value; establishing a single-cluster supercapacitor discharge model, simulating a process from constant-power discharge to a current-limiting threshold value, considering the influence of internal resistance voltage division, calculating single-cluster release energy through power-time integration, and obtaining single-cluster constant discharge power; calculating the number of super capacitor clusters; the number of parallel branches and the number of series clusters are determined by combining the topological direct-current side voltage range of the MMC, and the direct-current side rated voltage is set. By establishing a discharge model considering internal resistance voltage division, accurately calculating the actual discharge capacity of a single cluster, and systematically planning super capacitor configuration in combination with MMC topological characteristics, the problems that an existing method is insufficient in configuration precision and lack of topological adaptability are solved, and the reliability of a network-forming SVG is improved.

This invention discloses a low-voltage pre-calibrated single-current sampling DBD equivalent parameter measurement method and system. Addressing the core shortcomings of existing DBD parameter measurement technologies, such as complex hardware, significant safety hazards from high-voltage sampling, inherent errors introduced by measurement capacitors, and imprecise derivations of single-current sampling schemes, this invention employs a two-step method to achieve full parameter measurement using only single-channel current sampling: First, pre-calibration is performed under low-voltage, undischarged conditions to obtain the DBD series equivalent capacitance and the initial phase of the excitation voltage; then, the circuit current is sampled under normal discharge conditions, and the discharge / undischarge interval is accurately divided using the sliding window variance method. Based on the data from the undischarged interval, a complete excitation voltage waveform is fitted, and finally, all equivalent parameters, including dielectric capacitance, air gap capacitance, discharge sustaining voltage, and discharge power, are calculated. This invention eliminates the need for additional hardware such as high-voltage probes and measurement capacitors, enabling online measurement of equivalent parameters.

The invention discloses a direct-current ship power grid fault flexible ride-through method based on zero-sequence current injection, which belongs to the technical field of direct-current ship power grid fault protection, and comprises the following steps: when a switch fault is detected, positioning the position of a fault switch; calculating the degree of asymmetry of the direct-current voltage according to the output voltage requirement of the inverter; the direct-current voltage asymmetry degree serves as input, the rectifier is controlled through carrier amplitude modulation and zero-sequence component injection, and asymmetric direct-current voltage is output; the method comprises the following steps of: determining locking and conducting switches when different switch faults occur, and controlling an inverter to realize generation of separated alternating-current phase voltage and optimal zero-sequence component injection through two-level carrier modulation according to asymmetric direct-current voltage so as to complete flexible fault ride-through of the frequency converter. By adopting the method, the processes of capacitor discharge, energy feedback and the like in the fault period are adjusted through the control factors, system instability and equipment reverse rotation are prevented, and continuous power supply and operation safety of a ship power grid are guaranteed.

The invention discloses a short-circuit current calculation method for an electric-electric hybrid ship direct-current integrated power system, which comprises the following steps of: respectively carrying out interelectrode short-circuit current analysis calculation on synchronous rectification generators to obtain generator short-circuit current; filter capacitor discharge current analytic calculation is carried out on the DC / DC converters respectively, and transient discharge current is obtained; analyzing and calculating the steady-state short-circuit current output by the lithium battery through the DC / DC converter to obtain the steady-state short-circuit current; and adding the results to obtain the short-circuit current of the system. Compared with electromagnetic transient simulation calculation, the calculation speed is higher, and the calculation result error meets the allowable deviation range of engineering calculation. The method can provide support for protection design and short-circuit safety check of an electricity-electricity hybrid ship direct-current integrated power system powered by a synchronous rectification generator set and lithium battery energy storage in parallel, and can be applied to ship integrated power system application scenes such as harbors as tugs and offshore large transport ships.

This invention discloses a hydrogen-based electrical discharge machining (EDM) system, relating to the field of EDM. The system includes: a contact detection system for detecting the contact state between the electrode and the workpiece and outputting the contact detection signal to the machining control system; a detection switching system for switching between machining and detection modes, receiving switching commands from the machining control system, and connecting the electrode and workpiece to either the contact detection system or the EDM system; and a pulse voltage system for providing low-voltage pulse discharge energy. Compared with existing technologies, the advantages of this invention are: by comprehensively utilizing a special mechanical structure of a dual-slide stage, a rapid switching circuit, hydrogen as a reducing working medium, and low-voltage pulse capacitor discharge technology, this invention systematically solves the four inherent bottlenecks of traditional gas EDM: high voltage dependence, surface oxidation and degradation, servo return error, and process monitoring lag. Ultimately, it achieves high-precision, high-quality, high-efficiency, and inherently safe precision EDM.

The invention discloses a silicon carbide device state detection circuit based on threshold voltage change, relates to the technical field of power electronics, and aims at online threshold voltage extraction and state evaluation of a SiC power device. The circuit takes a half-bridge structure as a carrier, an integral voltage is formed at a lower tube integral node through transconductance operational amplifier integration of a lower tube gate-source voltage, and voltage jump of a half-bridge midpoint node is converted into a comparator overturning signal of a drain-source event detection node through a high-voltage diode and a current-limiting resistor; and an integral time window is limited and a reset switch MOS tube is triggered to discharge and reset the integral capacitor, so that an integral voltage peak value and event time delay are obtained. The control unit only collects two variables of the event time delay and the integral voltage peak value, gating is carried out according to the calibrated consistency relation, output abnormity types are subdivided, effective measurement screening, false triggering and integral / reset abnormity diagnosis and threshold voltage drift statistics are achieved, and the stability and engineering availability of online detection are improved.

The application provides a controller of an active clamp flyback conversion circuit, a power module and an electronic device. After the active clamp flyback conversion circuit operates in a suspended working state, the controller controls the discharge of a resonance capacitor of the active clamp flyback conversion circuit, so that the voltage value of the output voltage of the power circuit is higher than the preset voltage value of the low-voltage protection of the controller, thereby avoiding the restart of the controller due to the low-voltage protection, and improving the stability of the power module and the electronic device in which the active clamp flyback conversion circuit is located. Moreover, when the controller controls the discharge of the resonance capacitor, the output voltage ripple of the active clamp flyback conversion circuit is not increased, and noise from the input power is not introduced.

The invention discloses a pre-current-limiting hybrid direct current circuit breaker based on an inductive coupling principle and a control method. The pre-current-limiting hybrid direct current circuit breaker comprises a main branch and an auxiliary branch which are connected in parallel, the auxiliary branch comprises a bridge type reversing branch composed of thyristors and diode valve groups Q1-Q4, a current transfer branch, a bypass branch, a current limiting part, a self-charging part and an energy consumption branch are arranged in the bridge type reversing branch, and energy release branches composed of common mechanical switches and resistors are arranged at the two ends of a capacitor C1 and the two ends of a capacitor C2 respectively. The energy release branch is used for discharging the corresponding capacitor after the circuit breaker acts; the bypass branch, the current limiting part and the self-charging part are connected in parallel and then are connected in series with the energy consumption branch to form a series unit; the MMC flexible DC power grid circuit is small in on-state loss, low in cost, high in reliability, capable of being flexibly adapted to different abnormal scenes of a DC system, and suitable for the fields of MMC flexible DC power grids and the like.

This invention discloses a frequency dithering control circuit, a control chip, and a switching power supply. The frequency dithering control circuit includes: a narrow pulse generation module, used to convert an input high-level enable signal into a low-level narrow pulse after the control chip is started; a current source charging and discharging module, used to charge a capacitor connected to a pin of the control chip when a low-level narrow pulse is received, and simultaneously output a first voltage signal based on the voltage signal detected at its detection terminal; and to discharge the capacitor when no low-level narrow pulse is received at its input terminal; a level shifting module, used to convert the first voltage signal into a second voltage signal, either the supply voltage or ground level, and then output it; and a frequency dithering switch module, used to control the conduction and cutoff of the transmission gate based on the second voltage signal, the narrow pulse, and the enable signal, thereby enabling and disabling the frequency dithering function of the control chip. This invention reduces the design difficulty for application engineers.

The invention provides a low dropout regulator. The low dropout regulator comprises an amplifier circuit, an equalizer circuit, a compensation capacitor, a discharge circuit and a detection circuit. The amplifier circuit operates between a first supply voltage and a second supply voltage, and includes a differential input pair having a first stage input circuit and a second stage input circuit. The amplifier circuit is configured to generate an output voltage according to an input voltage and a reference voltage. The equalizer circuit is coupled between two intermediate nodes spliced by the first stage input circuit and the second stage input circuit, and is configured to be short-circuited under the control of a control signal. The discharge circuit is configured to be controlled by the control signal to lower the common mode voltage of the common end of the differential input pair. The detection circuit is configured to generate a control signal according to a node voltage of one of the two intermediate nodes.

This utility model relates to the field of general circuit technology, specifically to a stable and anti-interference fast power-on / off RC reset circuit; it includes an RC reset circuit and a MOSFET interlock circuit. The RC reset circuit includes resistors R1 and R2, capacitor C, diode D1, and power supply equivalent impedance RL. The MOSFET interlock circuit includes transistors M1, M2, M3, M4, M5, and I1, where I1 is a logic gate OR gate. The RC reset circuit of this design adds a MOSFET interlock structure to the traditional circuit architecture to generate high and low levels, which are then used by logic gate circuits to generate high and low voltage signals, suppressing reset signal jitter that may be caused by power supply noise or environmental interference. At the same time, the RC reset circuit uses a MOS resistor instead of a traditional resistor and utilizes its own substrate diode as a capacitor discharge diode, which can accelerate the discharge of capacitor C. Furthermore, a resistor discharge branch connected in parallel with capacitor C is added to achieve fast reset of the RC circuit when the power supply is rapidly powered on or off.

The utility model discloses a low power consumption standby circuit, which comprises a discharge controller U1 and a rectification module, the input end of the rectification module is connected with a live wire L and a null line N of commercial power, a piezoresistor MOV1 is connected between the live wire L and the null line N, and the live wire L is connected with a fuse F1 in series; the input end of the rectification module is connected with a capacitor CX1 in parallel, the discharge pin of the discharge controller U1 is connected with the two ends of the capacitor CX1 in parallel, and when the equipment works and the discharge controller U1 detects that the voltage on the live wire L and the zero wire N is in normal work, the discharge controller U1 automatically keeps a non-working state; and when the voltage of the live wire L and the zero wire N is detected to drop or the system is powered off, the discharge controller U1 is automatically started, a loop is formed through the resistor RX1, the resistor RX3, the resistor RX2 and the resistor RX4 to discharge the capacitor CX1, and the residual charge of the capacitor CX1 is quickly released, so that the charge residue on the live wire terminal and the zero wire terminal is avoided, the electric shock risk is reduced, and the power utilization safety is improved.

The invention provides a pulse width modulation signal generating circuit, which is applied to the technical field of integrated circuits, and comprises an integrating circuit, a first comparison circuit, a second comparison circuit and a control circuit, the integrating circuit charges a first capacitor when the first comparison circuit outputs a first level signal, and the integrating circuit charges a second capacitor when the first comparison circuit outputs a second level signal. Discharging through the first capacitor; the first comparison circuit outputs a first level signal when the voltage of the first capacitor is lower than a first reference voltage, and outputs a second level signal when the voltage of the first capacitor is higher than a second reference voltage; the control circuit outputs a first reference voltage when the first comparison circuit outputs the first level signal, and outputs a second reference voltage when the first comparison circuit outputs the second level signal; the second comparison circuit outputs a pulse width modulation signal according to the reference voltage when the first capacitor is charged or discharged. The output of the pulse width modulation signal can be realized without a single-chip microcomputer circuit, and the research and development cost is reduced.

The present invention relates to a method for producing a battery cell contact and to a battery cell comprising a battery cell contact produced according to the method. In the method for producing a battery cell contact (10), a battery cell housing element (2) with an opening (60), a connecting element (30) for producing an electrically conductive connection with an electrode, and at least one contact element (20) for realizing an electrically conductive interface are provided. The connecting element (30) is inserted into the opening (60) along an insertion direction (61) so that it passes through the opening (60), and the contact element (20) is welded to the connecting element (30) by means of a capacitor discharge welding process, thereby producing an electrically conductive connection from the contact element (20) to the connecting element (30) that passes through the opening (60) of the battery cell housing element (2). The proposed method for producing a battery cell contact and the battery cell comprising a battery cell contact produced according to the method provide solutions for the design of a battery cell that offer a reliable contacting option for an electrode in a simple, cost-effective and space-saving manner.

The utility model provides a high-voltage non-stroboscopic lamp strip compatible with dimming of various silicon controlled rectifiers. Comprising a rectifier bridge DB1, a linear constant current driving chip U1, a dimming discharge chip U2, a discharge resistor R7, a discharge resistor R8, a U2 sampling resistor R6, a first lamp string, a second lamp string, an electrolytic capacitor E1, an electrolytic capacitor E2, an electrolytic capacitor discharge resistor R4, an electrolytic capacitor discharge resistor R5, a U1 sampling resistor R1, a U1 sampling resistor R2, a U1 sampling resistor R3, a fly-wheel diode D1, a fly-wheel diode D2 and a fly-wheel diode D3, one end of the bleeder resistor R7 is connected with a pin 2 of the rectifier bridge DB1, and the other end of the bleeder resistor R7 is connected with one end of the bleeder resistor R8. The beneficial effects of the utility model are that the circuit can be compatible with silicon controlled dimmers of different specifications, and solves a problem that a lamp strip is liable to flicker under the condition of low power in a dimming process.

The invention belongs to the field of digital-analog hybrid circuits, and particularly provides a digital to time converter (DTC) circuit with high linearity and low noise, which is used for overcoming the rigidity compromise between the linearity and the thermal noise of a traditional resistor-capacitor charging and discharging type DTC and realizing the combination of high linearity and low noise. The invention provides a capacitor unit based on a self-pinch-off switch. The capacitor unit can show capacitive performance at the initial stage of capacitor discharging so as to provide DTC delay. In the end stage of capacitor discharge, the output inverter is resistive, so that the linearity of the output inverter is improved, and the noise is reduced. Compared with a traditional structure, the linear degree can be improved by more than six times, and noise can be reduced by 1.4 dB.

The present application relates to the direct current motor voltage stabilizing control technology, specifically relates to a kind of double battery drive direct current motor voltage stabilizing control system and control method, the system includes controller, and the user input control panel connected with controller, compensation drive circuit, power failure signal detection circuit and drive circuit, also include respectively with drive circuit, compensation drive circuit and power failure signal detection circuit connection direct current motor;Power failure signal detection circuit is connected with compensation drive circuit.This method carries out multiple gear voltage drive to motor, and main battery in double battery is powered to load by drive circuit, and auxiliary battery passes through compensation drive circuit and plays voltage stabilizing effect, constructs threshold voltage and capacitor rising voltage, obtains the parameter required for control by power failure signal detection circuit, and discharge compensation time is obtained by calculation, and voltage compensation is carried out by controller control capacitor discharge.This method effectively solves the interference caused by battery voltage drop on control when portable electric appliance is driven by battery, and auxiliary power supply is rapidly switched to supply energy.

The invention provides an ignition control circuit with a data storage function, the ignition control circuit comprises an ignition control circuit and a data storage circuit, the ignition control circuit comprises a sensor signal conditioning circuit, a single-chip microcomputer control circuit, an ignition output circuit and an energy storage power supply circuit, the single-chip microcomputer control circuit receives analog signals output by the sensor signal conditioning circuit and outputs the analog signals to the ignition output circuit; an ignition signal is output to the ignition output circuit, and the energy storage power supply circuit supplies power to the sensor signal conditioning circuit and the single-chip microcomputer control circuit. The data storage chip is integrated in the ignition control circuit, overload data, timing / layer-counting / hole-counting working data and ignition capacitor discharge data are stored in real time through the single chip microcomputer of the ignition control circuit in the working process, the size of the test fuse is reduced, and the reliability of the test fuse is improved. And meanwhile, the problem of low reliability of test data of the existing test fuze is also solved.

The invention discloses a charging and discharging control method and a charging and discharging control system, and belongs to the technical field of switching power supplies. The charging and discharging control method comprises the following steps: acquiring a sawtooth wave signal generated by a target capacitor in a working state; the sawtooth wave signal is used for representing the condition that the voltage of the target capacitor changes along with the time length; in a target charging and discharging period, based on the sawtooth wave signal and a maximum electric signal threshold value, a charging and discharging stage of a target capacitor is determined, and the charging and discharging stage comprises a normal charging stage, a first stage or a normal discharging stage; the first stage comprises a time-delay charging stage and an early-stage discharging stage; and under the condition that the target capacitor discharges, based on the charging and discharging stage, controlling the discharging current of the target capacitor. According to the charge-discharge control method, the discharge current of the target capacitor in the discharge stage can be controlled based on the charge-discharge state of the target capacitor, so that the frequency drift is reduced, and the stability of the system is enhanced.

The invention discloses a capacitor discharging method and system for a radio frequency power amplifier and magnetic resonance equipment, and relates to the technical field of capacitor discharging methods. The invention provides a capacitor discharging method for a radio frequency power amplifier, which comprises the following steps: acquiring a voltage sequence and a current sequence of an energy storage capacitor in a preset time period, and extracting voltage characteristics and current characteristics; predicting a first current value of the energy storage capacitor in the target time window according to the voltage characteristics and the current characteristics; predicting a second current value of the energy storage capacitor in the target time window according to the current resistance value of the adjustable load connected with the energy storage capacitor and the capacitance of the energy storage capacitor based on the physical law of capacitor discharge; performing weighted calculation on the first current value and the second current value to obtain a predicted current value of the energy storage capacitor in the target time window; and adjusting an execution strategy of the adjustable load according to a preset target current fluctuation range, the current real-time voltage and the predicted current value.

This application provides a controller, power supply module, and electronic equipment for an asymmetric half-bridge converter circuit. After the asymmetric half-bridge converter circuit is in a suspended state, the controller can control the discharge of the resonant capacitor in the asymmetric half-bridge converter circuit to ensure that the output voltage of the power supply circuit is higher than the preset voltage value of the controller's low-voltage protection. This prevents the controller from restarting due to low-voltage protection and improves the stability of the power supply module and electronic equipment containing the asymmetric half-bridge converter circuit. Furthermore, the controller does not increase the ripple of the output voltage of the asymmetric half-bridge converter circuit or introduce noise from the input power supply when controlling the discharge of the resonant capacitor.

The application relates to a relay delay power-off circuit and an electric vehicle, and relates to the technical field of power electronics. The circuit comprises a first controllable switch, a switching circuit, a delay circuit and a voltage comparison circuit. The first controllable switch is connected with a first relay in series. The second end of the delay circuit is connected with the voltage comparison circuit, and the delay circuit is used for outputting a first voltage to the voltage comparison circuit. The delay circuit comprises a first capacitor. The switching circuit is used for charging the first capacitor by a power supply when the input port of the LSD is grounded, and is used for disconnecting the loop between the power supply and the first capacitor to make the first capacitor discharge when the input port of the LSD is disconnected with the ground. The voltage comparison circuit controls the opening and closing of the controllable switch when the first voltage is greater than or equal to a reference voltage, so that the first relay is attracted; and the voltage comparison circuit controls the first controllable switch to be disconnected when the first voltage is less than the reference voltage, so that the first relay is powered off. The scheme can control the relays to be disconnected in turn according to the sequence, and ensures that the high-voltage line of the electric vehicle can be normally cut off.

The utility model discloses a normally closed emergency cut-off electromagnetic valve, including switch module, shell module and circuit module, the switch module includes fixed unit, action unit and auxiliary opening unit. The utility model discloses a normally closed emergency cut-off electromagnetic valve, through fixed unit and action unit link together to close the electromagnetic valve automatically, and through the recess part and steel ball to limit when closing or opening, keep structural stability, when opening manually through auxiliary opening unit and open fastly, and it through power supply circuit, first power supply circuit and second power supply circuit link together, through the capacitor discharge to the coil power supply when power failure, thereby realize the emergency cut-off when power failure, it has practicality high, security high and wide application range etc.

The utility model discloses an X capacitor bleeder circuit, a system and an electric appliance. The X capacitor bleeder circuit comprises a power supply detection circuit, a first resistance circuit, a master control circuit and a first switch circuit. The power supply detection circuit is connected with the main control circuit and used for being connected with an external power supply, detecting the access state of the external power supply and outputting a power supply state signal to the main control circuit; the first switching circuit is used for being connected with an electric load and the X capacitor, and the electric load is connected with the X capacitor in parallel when the first switching circuit is in a conducting state; the first resistance circuit is connected in parallel with the X capacitor; and the main control circuit is connected with the first switching circuit and is used for controlling the first switching circuit to be switched on when the power state signal is that the power supply is switched off, so that the first resistance circuit is connected with the electric load in parallel and discharges the X capacitor, and the power consumption is reduced while the safety requirement is met.

The invention relates to a capacitive continuous liquid level measuring device and method, the measuring device comprises a main control module, a sensing capacitor and a discharge reset module, the discharge reset module is connected with a control signal driving end of the main control module, and a power supply input end of the discharge reset module is connected with a positive electrode node of the sensing capacitor; the voltage stabilization charging input module is connected with a positive electrode node of the sensing capacitor, a voltage comparison unit is connected between the jump signal input end of the main control module and the positive electrode node of the sensing capacitor, and when the sensing capacitor is charged to a preset potential, the voltage comparison unit enables the main control module to calculate liquid level data from the initial potential to the preset potential. Time parameters serve as direct quantitative indexes of liquid level changes, time counting and linear conversion are carried out through the main control module, and then real-time data of continuous liquid levels are obtained. Continuous, linear and calibratable liquid level measuring capacity is achieved, and the advantages that the anti-interference capacity is high, the measuring range is not limited by chip specifications, and on-site deployment is simple are achieved.

The utility model discloses a miniaturized curved electromagnetic gun system, which comprises a transmitting device and an electric control module, the transmitting device comprises a gun barrel and a support, the gun barrel and the support are rotatably connected, and an enameled wire is wound outside the gun barrel to form a coil; the electric control module comprises an energy storage circuit, an emission control circuit, a distance measuring module and an operation control unit, the energy storage circuit provides energy for electromagnetic emission, and the emission control circuit adopts an optocoupler relay to control a 12V direct-current power supply, generates trigger current of a solid-state relay and controls discharging of a capacitor to a coil; the distance measuring module is used for providing target distance information, and the operation control unit is used for switching a transmitting mode. The utility model provides a miniaturized curved electromagnetic gun system, which realizes the design and construction of the miniaturized curved electromagnetic gun system, optimizes a mechanical structure and an electrical structure, and realizes efficient and accurate capacitor discharge control by utilizing a scheme of combining an optical coupling relay and a solid-state relay.

The application relates to the technical field of capacitor discharge, and discloses a storage energy photovoltaic direct-current high-voltage system bus capacitor discharge circuit which does not need to additionally use a control unit for driving, can reduce loss and heat generation, and prolongs the service life of a device, and comprises a power supply monitoring circuit, a strong current storage energy circuit, a power amplification circuit and a main power discharge circuit. The power supply monitoring circuit comprises a voltage detection module for detecting the voltage of a switching power supply and an optical coupler connected with the power supply detection module and disconnected when the voltage of the switching power supply is lower than a first voltage value. The strong current storage energy circuit comprises a resistance module connected with a bus positive electrode and a first capacitor connected with the resistance module. The power amplification circuit at least comprises a triode connected with the first capacitor, a pull-down resistor connected with the triode and the optical coupler and connected to a bus negative electrode. The main power discharge circuit comprises a MOS tube connected with the triode and a discharge resistor module connected with the MOS tube and used for discharging the bus capacitor.