91 results about "Phase shift control" patented technology

Disclosed in the present application are a DAB converter control method based on global minimum backflow power, a device, and a storage medium. The method comprises: acquiring the current consumed power inside a DAB converter, and determining whether the current consumed power is equal to a preset power threshold; if the current consumed power is not equal to the preset power threshold, acquiring the current input voltage and the current output voltage of the DAB converter, and then, with the objective of minimizing the deviation of the average transmitted power of the DAB converter and the output backflow power of the DAB converter, using a particle swarm optimization algorithm to optimize the current phase shift ratio combination applied by the DAB converter during triple phase shift control, so as to obtain an optimal phase shift ratio combination; and on the basis of a preset voltage reference value and the current output voltage of the DAB converter, determining an outer phase shift angle correction value, and then controlling the DAB converter by combining the outer phase shift angle correction value with the optimal phase shift ratio combination. The present application introduces the particle swarm optimization algorithm for solving a multi-objective optimization problem, such that the DAB converter can maintain a relatively high energy transmission efficiency and reduce the effect of the output backflow power after operation adjustment.

The application provides a remote acoustic signal pickup method and system based on phase coding microwave sensing, comprising: constructing a phase coding matrix, and performing phase shift control on the transmission signals of multiple transmission antennas; controlling the multiple transmission antennas to simultaneously transmit a linear frequency modulation continuous wave signal, so that the main lobe of a synthesized beam is directed towards the direction of a to-be-detected acoustic source or the direction of a target medium; using one or more receiving antennas to receive echo signals of the acoustic source target, to obtain a corresponding number of baseband signals; performing acoustic vibration phase demodulation on the corresponding number of baseband signals, to extract vibration information of the surface of the medium target caused by the vibration information of the acoustic source or caused by the excitation of the acoustic wave; and reconstructing the acoustic signal, to realize remote acoustic pickup. The application overcomes the problems of weak echo signals, low signal-to-noise ratio, large adjacent target interference and low quality of reconstructed acoustic signals in remote acoustic pickup, and improves the signal-to-noise ratio and sensing distance of remote acoustic pickup.

The invention discloses a CRM totem pole three-phase interlaced PFC control method, which comprises a signal sampling circuit, a filter circuit, a control circuit, an auxiliary winding circuit and a main power loop circuit, adopts a voltage mode control strategy, does not need a current inner loop, and simplifies a control system. The signal sampling circuit comprises an input voltage sampling circuit, an output voltage sampling circuit, an auxiliary winding voltage sampling circuit and an inductive current sampling circuit. The main power loop circuit comprises a first phase circuit, a second phase circuit and a third phase circuit which are mutually staggered and connected in parallel. The auxiliary winding circuit is used for controlling the turn-on time of the active tube, and the inductive current sampling circuit is used for controlling the turn-off time of the follow current tube, so that soft turn-on of the active tube in a full input voltage range is realized. The method can be expanded to an N-phase interleaving PFC system, and high-frequency current ripples are reduced through phase shift control. The method is suitable for occasions with high requirements on power supply performance, such as server power supplies and electric automobiles.

Embodiments of the present application provide a duodenum-based electric field ablation method, system and device, the method comprising: in the case of determining a target tissue corresponding to a target object, determining the narrow pulse parameters required by the target tissue; wherein the target tissue is the position of the target object's duodenum that needs to be subjected to pulse electric field ablation; determining the state information of the main control system; detecting the state information, and in the case that the state information meets the preset condition, generating a first pulse and a second pulse based on the narrow pulse parameters through the driving of the H-bridge circuit; wherein the preset condition is that the state information of the main control system meets the preset state; performing phase shift control processing based on the first pulse and the second pulse to determine the narrow pulse corresponding to the narrow pulse parameters; and achieving electric field ablation of the target tissue through multiple electrodes based on the narrow pulse. In the above scheme, the stability of the output of the narrow pulse is improved, thereby improving the electric field ablation effect on the duodenum.

The embodiment of the present application provides a method and device for suppressing common-mode current of a multi-converter wind power generator. The wind power generator has multiple sets of windings, and each converter is connected to a corresponding set of windings. The method comprises: sampling to obtain multiple common-mode current values of multiple converters in a predetermined time interval; determining a time interval of PWM operation phase shift based on the PWM operation period of the converter, the predetermined time interval, the number of converters, and the multiple common-mode current values of the multiple converters; determining a corresponding PWM operation phase shift time for each converter to suppress common-mode current based on the time interval of PWM operation phase shift; and performing phase shift control on the PWM signal of each converter based on the corresponding PWM operation phase shift time of each converter. Thus, the common-mode current generated by the multiple converters can be effectively suppressed.

This invention discloses a dual-path interleaved phase-shift current sharing control method and system based on FPGA. The PWM on the DSP side adopts a rising-falling counting method, setting it low when the rising count reaches the comparison value and high when the falling count returns to the comparison value. The DSP outputs four sets of PWM signals in the first path to the drive circuit, and simultaneously sends two sets of PWM signals from the first branch's upper bridge arm along with the synchronization signal to the FPGA. The control gain (Gain) is sent to the FPGA via SPI communication at intervals of one power frequency cycle. After receiving the above signals, the FPGA generates and outputs four sets of PWM signals in the second branch. Leveraging the FPGA's high-speed parallel processing capabilities, abundant programmable logic and I / O resources, and strict timing determinism, this invention can achieve precise PWM phase-shift control with real-time duty cycle compensation, thereby effectively improving the system's current sharing performance and current ripple characteristics, and enhancing the efficiency and long-term operational reliability of high-power power conversion systems.

The invention discloses a wireless electric energy transmission system based on impedance self-adjustment and an efficiency improvement method thereof, and belongs to the technical field of wireless electric energy transmission. The system comprises a DC voltage source, an inversion module, a primary side compensation network, an integrated coupling mechanism, a secondary side compensation network, a rectification module, a filter capacitor and a load. The integrated coupling mechanism integrates the primary side compensation inductor, the secondary side compensation inductor and the coupling coil into a whole to form a self-adjusting variable inductor changing along with an air gap. Then, based on a second-generation non-dominated sorting genetic algorithm, multi-objective optimization is carried out on compensation capacitance and input voltage, and optimal parameters are determined under detuning degree constraint by taking minimization of output voltage fluctuation and total loss of the system as objectives; constant voltage output is achieved through phase shift control, and all-working-condition zero-voltage switching is achieved. The device does not need additional variable impedance elements, has the advantages of being simple in structure, stable in control, high in efficiency, high in air gap fluctuation resistance and the like, and is suitable for air gap dynamic change scenes such as wireless charging of automatic guided vehicles and electric vehicles.

The application provides a switching power supply control method, device and power supply system, the method comprising: determining any one of N transformer modules as a master module, and taking the remaining transformer modules except the master module as slave modules; when receiving a control instruction, outputting a synchronization signal to each slave module; determining a delay time corresponding to each slave module according to a first time of outputting the synchronization signal and a second time of each slave module receiving the synchronization signal; performing phase shift control on the master module, and performing phase shift control on each slave module based on the delay time, so that the driving signals of each transformer module and each transformer in each transformer module are uniformly phase shifted in a preset period. The technical scheme of the application can effectively reduce the input current ripple of the switching power supply, thereby realizing reduction of the output current ripple of an input source connected with the switching power supply, and ensuring the performance and service life of the input source.

The invention relates to the technical field of DC-DC conversion, and discloses a bidirectional DC-DC converter based on zero-voltage soft switching, which comprises a high-voltage-side full-bridge circuit, the high-voltage-side full-bridge circuit is composed of four high-voltage switching tubes S1 to S4, body diodes D1 to D4 corresponding to the switching tubes and junction capacitors C1 to C4, the output end of the high-voltage-side full-bridge circuit is connected with a high-voltage-side filter capacitor Ch in parallel, and the output end of the high-voltage-side filter capacitor Ch is connected with the output end of the high-voltage-side full-bridge circuit. The voltage stabilizing circuit is used for stabilizing the voltage Uh of the high-voltage side, and the low-voltage side full-bridge circuit is composed of four low-voltage switch tubes S5-S8, body diodes D5-D8 corresponding to the switch tubes and junction capacitors C5-C8. According to the bidirectional DC-DC converter based on the zero-voltage soft switching, zero-voltage switching-on and switching-off of the full-bridge switching tubes are achieved through the resonance network, switching loss is remarkably reduced, particularly, the efficiency is improved by 5%-8% compared with a traditional hard switching under the high-frequency working condition, the rapid dynamic response characteristic is achieved, and the reliability of the converter is improved through the combination of leakage inductance of the transformer and an external resonance inductor. And in combination with phase shift control, full-range soft switching from 20% of rated load to full load is realized.

The technology described herein is directed towards phase-change material-based (e.g., chalcogenide) radio frequency components that can be used in unit cells of a reconfigurable intelligent surface. A multi-state tunable capacitive element for reconfigurable operation is described, in which phase-change material operates as a switching element to controllably vary capacitance of each unit cell. The multi-state tunable capacitive element can be made of multiple subcircuits in which capacitors of various values can be selectively switched in or out to vary the capacitance of the multi-state tunable capacitive element, resulting in a phase change of a unit cell with respect to reflecting or refracting an electromagnetic wave. By arranging the subcircuits with capacitors of different values, and actuating each one in or out of the overall capacitive element, an analog-like variable capacitor is provided to provide more granular phase shift control of cells of a reconfigurable intelligent surface.

This invention relates to a wideband, low-error 6-bit active vector synthesis phase shifter for phase control of radio frequency signals. It includes an orthogonal signal generator, a wideband input matching network for the I / Q branch, a variable gain amplifier for the I / Q branch, a wideband output matching network, and a shift register. The orthogonal signal generator employs an RL multiphase filter (RLPP) based on a transformer structure, reducing losses caused by capacitive loads, saving space, and implementing a two-stage cascaded structure to extend bandwidth. An electromagnetically coupled resonator is used as the input and output wideband matching network for the variable gain amplifier, effectively extending the circuit bandwidth. Furthermore, a variable gain amplifier with adjustable tail current is designed, connected to two current mirror arrays through the tail current node in a Gilbert cell structure, enabling coarse and fine phase shift control of the phase shifter, thereby improving the phase shift accuracy.

The present application relates to a kind of compact railway energy regulation complex and its control method, including the converter unit with the core of medium-frequency transformer, the magnetic field of medium-frequency transformer is to the decoupling inductance of collision and filter capacitor and is constituted the second harmonic filter branch of converter unit DC side, filter each converter unit DC side in single-phase conversion system The second harmonic component is removed.Compact railway energy regulation complex uses double-phase shift control and passive control etc.Control method, can accurately control the power flow distribution of two power supply arms and realize traction transformer primary side three-phase current balance control, and using the linear quadratic regulator LQRI control method based on band integration is carried out energy comprehensive regulation, can effectively suppress the voltage fluctuation of feeder side, improve the comprehensive energy utilization rate and new energy consumption rate of electric railway system.Because of the existence of medium-frequency transformer, compared with the electric energy regulation device with the basic topology of traditional railway power regulator, compact railway energy regulation complex has higher integration.

The invention discloses a binary coding layered piezoelectric stack driver and a stepping phase shift driving method thereof, and belongs to the technical field of phase shifters. According to the method, a piezoelectric stack is layered according to binary weight, each layer is connected with a driving power supply module through an independent electric control branch module, the electric control branch module comprises a voltage dividing branch and a discharging branch, and binary switching of each piezoelectric layer between zero displacement and fixed displacement is achieved by combining a quick switch control module controlled by a single chip microcomputer. And the required step pitch is obtained by overlapping the layers according to the weight. The voltage of each layer is finely adjusted by adjusting the adjustable capacitor, so that the displacement of each layer strictly conforms to the binary weight, the required step pitch can be obtained by bit combination, and the phase shift step pitch can be adjusted according to the phase shift requirement. The method is simple in structure, does not need a complex closed-loop control system, effectively solves the problems of hysteresis and nonlinearity of a traditional piezoelectric stack, remarkably improves the system stability and the measurement precision, and is suitable for stepping phase shift control in high-precision interference measurement.

A control circuit performs at least one of a first phase shift control and a second phase shift control. The first phase shift control outputs a primary-side control signal so that a positive voltage is applied to a primary-side winding, and then outputs a secondary-side control signal so that a positive voltage is applied to a secondary-side winding when the voltage of the capacitor is higher than a battery voltage primary-side conversion value during activation of a bidirectional DC / DC. The second phase shift control outputs the secondary-side control signal so that a positive voltage is applied to the secondary-side winding, and then outputs the primary-side control signal so that a positive voltage is applied to the primary-side winding.

The present disclosure relates to an optical phased array including optical components for on-chip beamforming and steering, adapted to use at least one optical phase-shift control element configured to be electrically modulated to steer the direction of an output optical field of a radiation beam having a wavelength in the visible to short-wavelength infrared range. The optical components include simultaneously modulated optical phase shifters of monotonically varying dimensions independently positioned above, below, or otherwise integrated into each optical waveguide connected to a beam emitter. Such optical phased arrays are useful in LiDAR systems and transceivers.

The invention discloses a dynamic electric vehicle wireless charging constant net power control method and system, the method is applied to an electric vehicle wireless charging system, the system comprises a primary side circuit and a secondary side circuit, the secondary side circuit comprises a receiving coil, a resonance compensation network and a rectifier bridge, the output end of the secondary side circuit is connected with a power battery and a motor respectively, and the output end of the secondary side circuit is connected with the power battery. The method comprises the following steps: detecting rectifier bridge output power and motor consumption power in real time; determining a battery net charging power feedback value based on a difference value between the real-time rectifier bridge output power and the motor consumption power; obtaining a reference net power value, and outputting a rectification phase shift control angle through closed-loop control based on the battery net charging power feedback value and the reference net power value; and performing rectification phase-shift control on the rectifier bridge based on the rectification phase-shift control angle to adjust the output power of the rectifier bridge, so that the net charging power feedback value of the battery keeps constant along with the reference net power value. According to the invention, the battery can be charged with constant net charging power, and the battery charging power is prevented from fluctuating.

A phase shifting system, a chip, and a radar sensor are provided. A respective transmission line phase-shifting unit is configured to receive at least one phase shifting control signal and to shift a phase of a RF signal by a first phase or a second phase. Each transmission line phase-shifting unit includes a first group of transmission lines and a second group of transmission lines. At least some transmission lines in the first group of transmission lines of each transmission line phase-shifting unit are physically isolated from at least some transmission lines in the first group of transmission lines of an adjacent transmission line phase-shifting unit and transmission lines of the second group of transmission lines of each transmission line phase-shifting unit are coupled to respective transmission lines of the second group of transmission lines of an adjacent transmission line phase-shifting unit.

The application relates to a LLCC resonant converter capable of reducing resonant current and resonant capacitor voltage stress, which comprises a direct-current input power supply, the direct-current input power supply is connected with a full-bridge inverter module, the output end of the full-bridge inverter module is connected with two ends A and B of a primary side coil of a high-frequency transformer T, the input end of a full-bridge rectifier module is connected with two ends C and D of a secondary side coil of the high-frequency transformer T, the input end of a filter module is connected with the output end of the full-bridge rectifier module, and a load R is connected with the output end of the filter module o The voltage between the two ends of the direct-current input power supply is a direct-current input voltage V in The voltage between the two ends of the load R o is a direct-current output voltage V o The application can realize ZVS opening of the primary side switch tube in a wide input voltage and wide load range under a phase shift control strategy; the application can reduce resonant current stress under heavy load and can reduce resonant capacitor voltage stress under the phase shift control strategy; and the application has simple topological structure, flexible design and regulation and strong practicability.

The invention discloses a series resonant DC transformer and a control method for magnetic bias suppression thereof, and the DC transformer consists of a low-voltage-side circuit breaker, a low-voltage-side DC support capacitor, a low-voltage-side full-bridge inverter, a resonant capacitor, an isolation transformer, a high-voltage-side DC support capacitor and a rectification circuit. During starting, pre-charging is carried out, a low-voltage side direct-current supporting capacitor is charged, and after charging is completed, progressive phase-shifting control is carried out on a low-voltage side full-bridge inverter in the series resonant direct-current transformer; a normal operation stage is carried out after pre-charging is completed, when shutdown occurs, resonance current flowing through leakage inductance of an isolation transformer is gradually reduced by controlling a low-voltage side circuit breaker and a low-voltage side full-bridge inverter, and non-magnetic-bias shutdown is carried out; and when a fault occurs, the series resonant direct-current transformer is locked according to the exciting current. According to the invention, magnetic bias suppression can be achieved without external demagnetization equipment or an auxiliary circuit.

The invention discloses a narrow pulse phase shift cooperative control method based on an LLC converter. The method comprises the following steps: acquiring a voltage signal in real time, and then judging whether closed-loop control is started or not; calculating an error signal according to the voltage signal; judging system working conditions based on the error signals; and implementing a corresponding control strategy and configuring PI parameters according to the system working condition. According to the narrow pulse phase shift cooperative control method based on the LLC converter, through combination of closed-loop control and soft start control and cooperation of narrow pulse and phase shift cooperative logic, the problem that the voltage of a high-voltage side bus is unstable and even is reduced during boost discharge in traditional phase shift control is effectively solved; meanwhile, the predefined minimum pulse width and dead time can prevent switch tube direct connection or signal loss, the system reliability is enhanced, and the requirements for wide-range change of power grid voltage and bidirectional efficient interaction of energy in the energy storage fields such as light storage and electric automobiles are met.

The application discloses a heterogeneous battery cluster adaptive equalization control method and system, and belongs to the field of data processing, wherein the method comprises the following steps: establishing the topological connection of a heterogeneous battery cluster and a multi-port DAB converter, connecting the battery cluster to a low-voltage side full-bridge circuit, and performing phase shift control through full-bridge switching tubes; constructing a battery cluster comprehensive state vector, constructing a multi-dimensional energy difference function between any two battery clusters, and generating target power transmission demand between any two battery clusters; mapping the target power transmission demand to the corresponding initial phase shift angle difference value by calling a phase shift power transmission characteristic model; and performing multi-port coupling consistency optimization on the initial phase shift angle difference value, and controlling the equalization control difference value of the actual driving phase shift angle of each full-bridge switching tube. The application solves the technical problem that the direct parallel connection of the existing battery cluster to the DC bus will cause uncontrollable parallel circulating current due to the mismatch of terminal voltage, aggravate energy loss and device aging, and cause the risk of heat runaway.

The application provides a single-stage conversion-based cascaded electric energy router, and belongs to the field of electric power conversion. There are two modular architectures, one is AC side star series connection and DC side parallel connection, and the other is AC side cascade connection and DC side parallel connection, and the latter can be connected to (or separated from) a medium-voltage DC power grid. The conversion module is an isolated AC-DC single-stage conversion topology, which comprises an inductor, a commutating half-bridge (not included in the second architecture), two groups of conversion bridges, a transformer with a tap, a DC blocking capacitor and a bus capacitor and the like. The primary winding of the transformer is connected with the AC side conversion bridge at both ends, the middle tap is connected to the AC voltage end through an inductor in series, and the secondary winding is connected with the DC side conversion bridge through the DC blocking capacitor. The AC side of the conversion module adopts staggered SPWM modulation, the DC side adopts phase shift control, and the modules are staggered or synchronized. The scheme has the following advantages: the topology is simple and efficient, and can improve reliability and dynamic characteristics; the utilization rate of the AC side DC bus voltage is high, and the DC side can realize zero voltage soft switching.

A method for controlling an on-board charger is provided. A transformer side of an AC / AC conversion circuit is connected to an alternating current side of an AC / DC conversion circuit through a transformer. A reference peak value of a grid-side current of the on-board charger is regulated based on a deviation of a sampled value of a battery-side voltage relative to a reference value of the battery-side voltage. The reference peak value of the grid-side current is converted into an instantaneous reference value of the grid-side current based on a phase of an instantaneous sampled value of the grid-side voltage of the on-board charger. Phase-shift control is performed on the two conversion circuits based on the instantaneous reference value of the grid-side current, the instantaneous sampled value of the grid-side voltage and the sampled value of the battery-side voltage.

The invention belongs to the technical field of electric vehicle charging, and particularly discloses a multi-port electric vehicle quick charging system and a control method thereof. Aiming at the problem that the existing two-stage solid-state transformer charging system is difficult to realize submodule voltage balance, high power factor and full load range operation at the same time at low cost, the system adopts a structure of a cascaded H bridge rectifier stage, a multi-active bridge isolation stage and a flexible power switching matrix, and realizes rectifier stage capacitor voltage balance through a dq decoupling control strategy; and performing accurate power distribution on the isolation stage by combining phase shift control and a power decoupling algorithm. According to the control method, the power output of the isolation stage and the on-off of the relay in the flexible power switching matrix are dynamically adjusted according to the access sequence of the electric vehicle, and the voltage balance of each H-bridge capacitor is ensured. Under the condition that no extra reactive compensation or balance winding is needed, 100% unbalanced load operation is supported, the device has the advantages of being high in power factor, compact in structure and low in cost, and multiple electric vehicles can be rapidly charged at the same time.

The embodiment of the present application discloses a kind of control methods of inductive power transmission, by according to the output voltage V o And output current I o Of secondary side circuit output end, determine the duty cycle D of switch capacitor SCC;In primary side circuit end, control soft switch ZVS angle θ ZA It is the condition that constant is determined, according to the relationship of ZVS angle θ ZA , the duty cycle D of SCC and input impedance angle θ AB , determine the phase shift angle of full-bridge converter according to the corresponding relationship of phase shift angle and the output voltage V o Of secondary side circuit output end, control output voltage V o To realize ZVS soft switch and closed-loop control, with in the case of no communication link, the system stability and efficiency of charging process have been improved, realized with simple phase shift control the advantages such as double-side full-soft switch.

The application discloses a high-voltage direct-current power supply for an axial fast-flow CO2 laser, and relates to the technical field of high-voltage direct-current power supplies, comprising a three-phase rectification module, a soft-start filtering module, a phase-shift full-bridge inversion module, a high-frequency voltage-boosting module, a high-voltage rectification output module, a setting signal input module, a laser energy feedback module, a phase shift control module, a primary-side current detection module and a protection module; three-phase alternating current is rectified, filtered, phase-shift inverter, isolated boosted and high-voltage rectified to form a high-voltage direct-current output; the phase shift control module adjusts a phase shift angle according to the deviation of a power setting signal and a laser energy feedback signal; and the primary-side current detection module triggers the protection module to shut off a driving output when the current reaches a preset condition. Through laser energy closed-loop regulation, primary-side current rapid protection, high-frequency voltage-boosting and water-cooling heat dissipation, the output stability and response capability are improved, negative resistance discharge overshoot is inhibited, abnormal discharge risk is reduced, and the power supply efficiency, power density and reliability are improved.

A method comprises: providing light to a plurality of optical antennas separated by a set of spacings in an optical phased array (OPA), wherein a plurality of phase shifters impose phase shifts onto light provided to respective optical antennas of the plurality of optical antennas; and managing the imposed phase shifts using a phase shift control module. The managing comprises a first mode of operation comprising: for a first subset of optical antennas within a distance from a center of the plurality of optical antennas, determining variations of imposed phase shifts smaller than a phase shift variation range, and for a second subset of optical antennas further than the distance from the center of the plurality of optical antennas, determining variations of imposed phase shifts larger than the phase shift variation range.

The invention discloses a full-function terahertz logic gate based on multi-dimensional regulation and control and a method thereof, and belongs to the technical field of terahertz communication and on-chip signal processing. The logic gate comprises an input coupler, a first waveguide branch, a function realization waveguide section, a second waveguide branch and an output coupler; and the function realization waveguide section comprises a transmission branch capable of being selectively regulated and controlled by laser and a control waveguide section above which a movable phase shift controller is arranged. Different binary input combinations are simulated through laser irradiation, continuous regulation and control of the signal phase between 0 and pi are achieved by adjusting the distance between the phase shift controller and the control waveguide section, and all seven basic logic functions of AND, OR, NOT, NAND, XOR, NOR and XNOR can be dynamically achieved by combining a preset judgment threshold value of the output end. The structure can be cascaded to form a programmable array to realize complex operations such as a half adder, a full adder and the like. The invention has the advantages of simple structure, function integration, dynamic adjustability and compatibility with CMOS (Complementary Metal Oxide Semiconductor) process, and is suitable for terahertz on-chip communication and intelligent computing systems.

To reduce the influence of a dead zone.SOLUTION: The power conversion device 10 includes a primary full-bridge circuit 30 including a plurality of primary switching elements Q1 to Q4, a secondary full-bridge circuit 40 including a plurality of secondary switching elements Q5 to Q8, and a controller 50. The control unit 50 performs phase shift control. The controller 50 derives the first phase shift amount Φ 1 from the current deviation Δ Iout between the target current Itgt and the output current Iout. When the first phase shift amount Φ 1 is included in the range of the dead zone D derived based on the input voltage Vin to the power conversion device 10 and the output voltage Vout of the power conversion device 10, the control part 50 sets the second phase shift amount Φ 2 outside the range of the dead zone as the phase shift amount Φ.SELECTED DRAWING: Figure 1

The application discloses an interleaved parallel resonant converter and a control method, equipment and medium thereof, relates to the field of resonant converters, and determines the average value of the primary side resonant current of each branch in the interleaved parallel resonant converter, then determines the corresponding phase shift control amount of the branch according to the size relationship between the resonant current and the average value of the branch, adjusts the driving signal of the secondary side circuit in the branch based on the obtained phase shift control amount, adjusts the output current of the branch by using the phase shift control process, and finally achieves the current balance of the branches. In the case that there are differences in hardware parameters such as component parameters between the branches, the current balance control of the branches is realized, so that the frequency of the driving signals of the branches is consistent, the output currents of the branches are effectively balanced, the ripple of the output current of the whole resonant converter is reduced, and the performance of the resonant converter is ensured.