393 results about "Deadband" patented technology

The invention relates to the technical field of servo control, in particular to a high-precision current closed-loop control system and method for a servo driver, and the method comprises the steps: collecting three-phase current, rotor position, winding temperature and bus voltage, and constructing a state data set; constructing a parameter identification model fusing physical prior and an attention mechanism, deducing inductance and flux linkage parameters influenced by temperature, saturation and cross coupling, and correcting a motor model in real time; the correction parameters are injected into an FOC decoupling and feedforward link, and a self-adaptive PI regulator is linked to set the gain of a current loop on line; calculating a d-q axis voltage command according to the update model to respectively control excitation and torque components; an extended state observer is introduced to estimate load abrupt change and parameter disturbance, feed-forward compensation is carried out, and three-phase PWM is generated through anti-Parker and SVPWM; and an inverter nonlinear compensation model of a dead zone and switch delay is constructed, PWM is pre-distorted and output to a power device, and robust and low-ripple current closed-loop control of the servo motor is realized.

The invention discloses a dual-mode TDC implementation method and system based on an FPGA, and relates to the technical field of electronic circuits, and the technical key points are as follows: after a dual-mode signal generation circuit receives each STOP pulse, a logic sequence opposite to the last time is immediately output as an effective delay signal, the reset of the last time signal in a time delay chain (TDL) is not required, and the time delay time is shortened; when the logic signal propagated last time does not completely fade, the new reverse logic signal can be independently propagated in the TDL, and the new reverse logic signal and the new reverse logic signal do not interfere with each other; meanwhile, the rising edge of the system clock only updates the state of the main trigger to serve as the logic reference of the next trigger, and an additional reset process is not needed, so that the dead zone time of single measurement is strictly controlled to be a single period corresponding to the system clock, and compared with a double-period dead zone in an existing scheme, the dead zone time is remarkably shortened, and the measurement rate is synchronously doubled; in a high-frequency pulse measurement scene, pulse loss caused by an overlong dead zone can be effectively avoided, and the measurement efficiency is remarkably improved.

A method and circuit for controlling a bidirectional resonant direct-current converter are provided. The method includes obtaining an input and / or output electrical parameter of the converter; determining respective delay time periods of bridge arms in the secondary circuit based on the input and / or output electrical parameter and a desired gain of the converter; determining a switching frequency to be greater than a resonant frequency of the resonant tank based on the input and / or output electrical parameter and a preset reference signal; and turning off, in response to a secondary resonant current of the converter reaching zero, corresponding switching transistors of the switching transistors in the secondary circuit immediately after the respective delay time periods starting from a zero-crossing point; and turning on other switching transistors complementary to the turned-off switching transistors in the secondary circuit immediately after a dead time.

The invention discloses a narrow pulse suppression method and device for dynamic adjustment of dead time, a medium and a controller, and the method comprises the steps: presetting the dead time of M periods in the future according to the real-time state of a motor and the dead time and current change rate of the first N periods, and outputting a working condition label at the same time, N and M being positive integers; determining target dead zone time Td according to the working condition label and the dead zone time of the M periods in the future; determining a dead zone time ratio Dd according to the target dead zone time Td, constructing an interval section of a PWM signal according to the dead zone time ratio Dd and a narrow pulse time ratio Dp, and constructing an upper bridge arm duty ratio function Dt and a lower bridge arm duty ratio function Db corresponding to each interval section according to the dead zone time ratio Dd and a duty ratio instruction Dm of the PWM signal; according to the interval section where the duty ratio instruction Dm of the PWM signal is located, a duty ratio function of the corresponding interval section is called, and a target PWM signal is output.

The invention discloses a complex wave-based permanent magnet synchronous motor all-electrical parameter online identification method and device. The method comprises the following steps: analyzing the influence of a voltage error caused by dead zone time on parameter identification, and performing corresponding dead zone compensation; a bias complex wave with a certain amplitude and frequency is injected into the d-axis current, so that the d-axis current meets a parameter identification continuous excitation condition; constructing three groups of effective current slopes through four groups of different input data stored in the steady state of the motor, and identifying three groups of parameters of resistance, direct-axis inductance and quadrature-axis inductance by referring to a d-axis voltage equation and adopting a least square method with a forgetting factor; and finally, updating the identified three groups of parameters as known quantities in a q-axis voltage equation in real time, storing two groups of different input data to construct a group of effective current slopes, and identifying flux linkage parameters by adopting a least square method with a forgetting factor. According to the method, the under-rank problem of all-electrical parameter identification of the motor is solved, the identification precision is high, and the identification error of each parameter is about 3%.

The invention discloses a data calibration compensation method for an off-axis magnetic encoder, and the method comprises the following steps: S1, calibration initialization: carrying out the initialization of used peripherals, calibration parameters and an encoder chip, and making preparations for calibration; s2, forcibly dragging the motor to align: forcibly dragging a motor rotor to rotate to a position 0 of a nearest electrical angle by adopting a non-inductive control mode, and recording a calibration initial position; s3, calculating calibration data by rotating the motor: recording a data compensation result of the encoder by taking the original data of the encoder as an index; the calibration method does not need other equipment to drive the motor to coaxially rotate for calibration, the stator magnetic field is directly utilized to calibrate the motor, system errors caused by external equipment are avoided, the accurate relative position relation between the electron magnetic field and the rotor magnetic field can be obtained, the driving efficiency is higher, the driving dead zone is smaller, and the calibration precision is higher. And various coaxiality and roundness error data of the off-axis magnetic encoder can be improved.

The invention discloses a method and a system for improving the control precision of a control lever based on a configurable dead zone, and relates to the field of electronic control and signal processing, and the method comprises the following steps: carrying out median calibration sampling, precisely obtaining an electrical median value, and temporarily storing a calculation result; boundary calibration sampling is carried out, a rocker is pushed to the limit position in sequence, and the maximum value and the minimum value of an original ADC are monitored and updated in real time; calculating and storing calibration parameters, calculating proportionality coefficients and offset key parameters of an X axis and a Y axis by utilizing the temporarily stored median value and boundary value in combination with a target output range, and generating and solidifying mapping parameters; and writing the parameters into FLASH: permanently storing the finally calculated calibration parameters into a nonvolatile memory FLASH. According to the control lever control precision improving method and system based on the configurable dead zone, the output data of the control lever caused by abrasion and aging can be stabilized within the range specified by a standard protocol again without disassembling equipment and special tools, the full-stroke control capability of the control lever is recovered, and control hidden dangers are eliminated.

The invention relates to the technical field of new energy, in particular to an efficiency optimization method of a DAB converter, electronic equipment and a storage medium. The method comprises the following steps: calculating a staggered ratio coefficient and a first phase shift parameter in a heavy load mode and a first phase shift parameter in a light load mode according to an output power reference value, a battery side voltage sampling value and a bus side voltage sampling value; determining a second phase shift parameter and a switching frequency in the heavy load mode according to the staggered proportion coefficient and the first phase shift parameter in the heavy load mode, and determining a second phase shift parameter in the light load mode according to the first phase shift parameter in the light load mode; and determining a current working mode based on the staggered proportion coefficient in the heavy load mode and a preset dead zone proportion, and generating a driving signal of each power switch based on the first phase shift parameter, the second phase shift parameter and the switching frequency corresponding to the current working mode. According to the method, the overall efficiency of the DAB converter under different load conditions is improved.

An error correction method for a successive approximation register analog-to-digital converter and a successive approximation register analog-to-digital converter (SAR ADC) are disclosed, which relate to integrated circuit technology. The successive approximation register analog-to-digital converter error correction method includes the following steps: a. detecting whether a comparator completes a data comparison within a specified time; if so, performing step b; if not, performing step c; b. after the comparator outputs data, starting a next data comparison cycle, and returning to step a; and c. interrupting the conversion, waiting for a signal to start a next conversion, starting the next data comparison cycle, and returning to step a. The method and SAR ADC can effectively prevent problems relating to (1) slow comparator speed caused by dead voltage and (2) burr interference.

The invention discloses a current prediction control method and device for a permanent magnet motor, and the method achieves the real-time prediction of a voltage error caused by a dead zone and other non-ideal factors through the powerful nonlinear fitting capability of a feedforward neural network in combination with the learning of historical current time sequence characteristics. And the prediction error is further fed forward and compensated to a future current prediction model to improve the accuracy of current prediction, so that the cost function evaluation is more accurate, the optimal voltage vector is selected, and the steady-state current error and the low-speed torque ripple are effectively inhibited. In this way, precise control over the current of the motor is achieved, and the control precision and operation stability of the driving system are comprehensively improved.

The invention discloses a two-phase cold plate liquid cooling dryness real-time measurement method and system based on data fusion, and relates to the technical field of liquid cooling data processing, and the method comprises the following steps: S1, collecting multi-mode liquid cooling working condition data in real time, carrying out the data preprocessing, carrying out the fusion of original dryness according to three types of dryness signals, and evaluating the health degree of signal fusion; s2, dynamically distributing adaptive signal weights for each type of dryness signals to obtain high-precision fusion dryness, and performing anomaly diagnosis; s3, the high-precision fusion dryness is optimized, flow adjustment is carried out, meanwhile, dead zone compensation of flow adjustment is carried out, and flow compensation correction is carried out; and S4, monitoring a flow regulation process and abnormal information in real time, and performing high-precision visual feedback and operation and maintenance optimization of the fusion dryness. The problems that an existing two-phase cold plate liquid cooling system generally adopts a single dryness detection mode and is prone to being interfered by the environment and lagging in response, so that the dryness measurement precision is insufficient, and the reliability and the heat dissipation efficiency of cooling capacity adjustment are affected are solved.

The invention provides a coordination control method and device for an energy storage power station, electronic equipment and a storage medium, and belongs to the field of energy storage. Under the condition that the difference between the current frequency of the grid-connected point and the system frequency dead zone of the energy storage power station is greater than or equal to a preset frequency deviation threshold value, superimposing a primary frequency modulation instruction and a virtual inertia support instruction so as to doubly suppress the frequency change amplitude and the frequency change rate; the primary frequency modulation power is determined according to the SOC of the energy storage power station; when the system frequency fluctuates and deviates from the rated frequency, and the difference value between the current frequency of the grid connection point and the system frequency dead zone is smaller than a preset frequency deviation threshold value, or when the system frequency gradually approaches the rated frequency, a primary frequency modulation instruction is executed. The method can solve the problems that the energy storage power station is poor in frequency quick response performance and large in frequency steady-state deviation, and the service life of a battery is prolonged.

The invention provides a high-power electric heating fused salt heat storage control system which comprises a fused salt electric heating and electric heat tracing device and a central control unit, and the central control unit is directly connected with a core control system for electric heating power dynamic adjustment, fused salt temperature gradient control, electric heat tracing pipeline safety protection and the like. The method comprises the following steps: firstly, based on power grid frequency deviation, generating an electric heating power instruction through droop control and a dead zone link; secondly, establishing a fused salt temperature-flow-power kinetic equation, and identifying a nonlinear surge excitation source; and finally, designing a flexible voltage source type converter control law of the electric heat tracing power supply by adopting an all-drive control theory, directly counteracting a nonlinear term of the system, and converting an original equation into a linear stable system. According to the method, the influence of nonlinear factors on surge and other phenomena is eliminated, the surge problem of small-mass and small-flow fused salt is effectively solved, and the energy efficiency and reliability of the system are improved.

The invention discloses an inverter adaptive power distribution method and system based on environmental perception, and relates to the technical field of inverter reactive voltage regulation. The method comprises the steps of collecting operation state data of a power distribution network in real time, including node voltage of each inverter access bus, and performing preprocessing to obtain environment characteristic data; inputting the parameter into a pre-trained first intelligent agent, and outputting dead zone parameters of each inverter; generating second environment characteristic data in combination with the dead zone parameter, and inputting the second environment characteristic data into a second agent to obtain a droop control parameter; and determining the reactive power of the inverter according to the node voltage and the dead zone parameters. According to the method, control parameters can be dynamically adjusted in real time, self-adaptive optimization is achieved, reactive power distribution of multiple inverters is coordinated, oscillation is avoided, and the voltage stability, reliability and intelligent level are improved.

The invention discloses a hierarchical control method considering participation of a wind-storage system in short-time frequency support and computer equipment, and relates to the technical field of stable operation and control of a power grid, the method comprises the following steps: determining operation state information and frequency data of the power grid at the current stage, the frequency data comprising a system frequency deviation and a system frequency change rate; and when the system frequency deviation exceeds a frequency modulation dead zone, starting frequency stabilization hierarchical control, calculating a second instruction variable quantity and a third instruction variable quantity, and starting fan rotor rotating speed recovery control when the second instruction variable quantity and the third instruction variable quantity are equal to zero, so that the fan rotor rotating speed is quickly recovered to a numerical value before disturbance occurs. Otherwise, the second instruction variable quantity is sent to the fan unit, the third instruction variable quantity is sent to the energy storage unit, 1 is added to the current stage, and the step of determining the operation state information and the frequency data of the power grid at the current stage is returned. The problem of optimal utilization of frequency modulation energy of the wind-storage system can be solved.

A harmonic modeling method of a power amplifier solves the problem that a traditional modeling method is not suitable for harmonic modeling analysis of a high-switching-frequency topological structure, and comprises the following steps: obtaining baseband harmonic and sideband harmonic caused by modulation nonlinearity according to the number of parallel half bridges, a modulation wave function and a carrier function in the power amplifier; according to the topological structure of the power amplifier, obtaining a circuit equation of the topological structure in the dead-zone time period; calculating the current amplitude envelope of the resonant inductor; and calculating a voltage error caused by the dead-zone time period according to the calculated current amplitude envelope in combination with a circuit equation of the dead-zone time period, performing Fourier decomposition on the voltage error to obtain distortion harmonics caused by the dead-zone time period of the power amplifier, and obtaining total harmonics in combination with the obtained baseband harmonics and sideband harmonics. According to the invention, the switching frequency when the total harmonic distortion is the lowest can be obtained through modeling.

The invention belongs to the technical field of power management, and particularly relates to a high-precision double-edge zero dead zone control circuit for a GaN half bridge. The circuit comprises a sampling interface circuit, a falling edge dead zone control circuit and a rising edge dead zone control circuit, the sampling interface circuit is connected with an SW node of a GaN half bridge and samples the voltage of the SW node, the sampling interface circuit samples the node voltage to obtain a clamping voltage Vclamp and a negative voltage Vsen, the Vsen is input into the falling edge dead zone control circuit, and the Vclamp is connected with the rising edge dead zone control circuit. The Vsen is input to a rising edge dead zone control circuit; the falling edge dead zone control circuit is used for controlling the GaN half bridge according to the Vclamp; and the rising edge dead zone control circuit controls the GaN half bridge according to the Vsen. Noise interference can be effectively avoided, and finally high-precision and low-power-consumption zero dead zone control is achieved.

The invention relates to a PID-DOB composite driving track control method for a hydraulic mechanical arm, and belongs to the field of track gauges of hydraulic mechanical arms. The method comprises the steps that firstly, modeling is conducted on a hydraulic system of the hydraulic mechanical arm; the saturation characteristic and the dead zone characteristic of the hydraulic system are analyzed; secondly, all shafts of the mechanical arm are identified and modeled by analyzing a signal spectrogram of normal work of the hydraulic mechanical arm, second-order linear system models of all the shafts are obtained, and a segmented PID control method is designed on the basis of the identified second-order linear system models; composite PID-DOB control rate design is carried out on the basis of a PID control method; the DOB estimates and compensates external disturbance and modeling errors of the system in real time; according to the segmented PID control method, the control process is divided into a starting segment, a main body segment and a braking segment according to time, speed and position information. The control precision and stability of the hydraulic mechanical arm are improved.

The invention discloses a method for realizing precise sintering temperature control in combination with a PID regulation and control system, and relates to the technical field of sintering processing, and the method comprises the following steps: S1, obtaining historical regulation and control data of a heating unit under a current operation condition, extracting a minimum effective response difference value between current input and temperature output, and generating a response identification threshold reference; and S2, based on the response identification threshold reference, performing amplitude evaluation on the real-time regulation and control signal output by the proportional-integral-differential controller, and when the amplitude of the regulation and control signal is lower than the response identification threshold reference for multiple times continuously and the temperature change is not caused, identifying as a dead zone response abnormal section. According to the invention, through response identification threshold value, dead zone and saturation identification, parameter self-adaptive correction and simulation feedback adjustment, the identification and response capability of the temperature control system to an abnormal state is enhanced, accurate output and dynamic optimization of a regulation and control signal are realized, the stability, precision and consistency of temperature control in a sintering process are obviously improved, and the yield and the process reliability are improved.

In a power converter, a controller performs a first control operation including causing a high-level period of a control signal for each bidirectional switch, corresponding to one of a plurality of switching circuits, out of a plurality of bidirectional switches, to overlap with a dead time and setting a beginning of the high-level period at a point in time earlier than a beginning of the dead time by an additional time. If a potential detected at a fourth terminal of a regenerative capacitor is less than a first threshold value, the controller performs a second control operation including controlling the plurality of bidirectional switches to raise a potential at the fourth terminal of the regenerative capacitor. If the potential detected is greater than a second threshold value, the controller controls the plurality of bidirectional switches to lower the potential at the fourth terminal of the regenerative capacitor.

The invention relates to the technical field of automatic assembly equipment, in particular to an automatic nut burying device based on high-precision servo drive and a control system thereof, and aims to solve the problem that the positioning precision is degraded due to micro-step error accumulation caused by dead time under the high-frequency start-stop working condition. The device comprises a mechanical execution unit, a permanent magnet synchronous servo motor, a servo driver, an absolute photoelectric encoder and a central cooperative controller, according to the control method, a load dependent type dead zone online identification and compensation framework is constructed, an extended Kalman filter is triggered through a load torque observer to estimate dead zone parameters in real time, compensation voltage matched with a current load is dynamically generated and superposed to a q-axis instruction, and error accumulation is effectively restrained. And the accumulated position deviation does not exceed 0.1 mm after continuous operation for one thousands of cycles, so that the position precision and the beat stability in the nut burying process are remarkably improved.

The embodiment of the present disclosure provides a method and a device for controlling a three-level power converter, a control device and a power converter system.The method comprises: sensing an electric current on the AC side of a three-level power converter, wherein the three-level power converter is configured to perform power conversion between DC and AC; determining the response to the flow direction of the sensed electric current on the AC side and of a power switching group performing the current level switching; determining the compensation duty cycle to compensate for the dead zone of the power switching group based on the voltage or potential information of the three-level power converter and time information corresponding to the switching operation of the three-level power converter; and adjusting a duty cycle of at least one circuit breaker of the power switching group based on the compensation duty cycle; and sending a control signal based on the duty cycle after adjustment to at least one circuit breaker.The embodiments described in the present disclosure can reduce or eliminate distortions, harmonics and other errors caused by the dead zone duration.

The invention discloses an electrical energy consumption and mechanical load coordinated instrument dynamic calibration system, and relates to the technical field of instrument calibration, the system comprises a diagnosis module for receiving original data streams of an electrical side and a mechanical side, and identifying segments to be optimized by calculating a symbol consistency rate and a zero cross alignment error; the robust symbol division module performs symbol state judgment by using a dynamic dead zone and a double-domain hysteresis comparator, and outputs smooth symbol segments and a switching delay table in combination with a finite state machine; the signed channel reconstruction module executes phase micro-shift and amplitude reconstruction based on the switching delay table, and outputs the signed channel after electrical side optimization; the write-back and closed-loop module obtains positive and negative power calibration parameters through bipolar bucket separation and robust linear regression, and writes back to the instrument after event-level energy closed verification to form closed-loop verification. According to the method, the instrument calibration precision and reliability under the dynamic working condition are effectively improved.

This invention provides a low-computational-complexity, pre-set performance-tolerant control method for steer-by-wire systems. The control method includes: determining the control objective based on a pre-set performance control method; subsequently designing a new pre-set performance function and error transformation function; designing virtual control laws and control laws in the controller using a robust control method; establishing a dynamic model of the steer-by-wire system based on system dynamics; establishing a dead-zone model and a fault model based on the impact of dead zones and faults in the vehicle actuators on the control performance of the steer-by-wire system; simultaneously obtaining the input nonlinear model of the steer-by-wire system; subsequently establishing a state-space model of the steer-by-wire system; and finally, verifying the controller's control effect and optimizing its internal parameters using the state-space model. This invention considers fault and dead-zone issues, improving the robustness of the controller; and considers the limited computational resources of the vehicle, with a simple controller structure that improves the overall computational efficiency of the vehicle.

The invention relates to the field of power electronic converters and control, in particular to an SOP power module dead-zone effect suppression method, which comprises the following steps: acquiring the current transmission power of an SOP power module; based on the transmission power, generating a first bus voltage instruction used for controlling an AC-DC side direct current bus voltage and a second bus voltage instruction used for controlling a DC-AC side direct current bus voltage, adjusting the corresponding direct current bus voltage so as to inhibit polarity reversal of a DAB converter bridge port voltage, and according to the transmission power of the SOP power module, adjusting the polarity of the DAB converter bridge port voltage. A first bus voltage instruction and a second bus voltage instruction are generated, the first bus voltage instruction and the second bus voltage instruction are made to be unequal during light load, a bus voltage difference value is formed, and it is ensured that the direct-current bus voltages on the two sides meet the condition for restraining DAB bridge port voltage polarity reversal in the dead-zone time period by means of compensation for frequency doubling fluctuation components in the direct-current bus voltages. Current zero step is eliminated, soft switching is recovered, voltage stability under light load is improved, extra hardware or complex control is not needed, and engineering realization is simple and convenient.

The application discloses a variable frequency device dead zone compensation method, which acquires real-time data of a load current, obtains characteristic harmonics of dead zone generated current according to the real-time data of the load current, inputs the characteristic harmonics after taking the opposite to a regulator, then obtains a characteristic harmonic control quantity, and finally obtains a compensation time point or a compensation amplitude of the dead zone compensation according to the characteristic harmonic control quantity. The application improves the precision of the dead zone compensation, further reduces the harmonics of the system, has low sensitivity to the load characteristic change, and does not need to acquire a special dead zone compensation table.

The invention provides a dead zone compensation method, device and equipment of an energy storage converter, a medium and a product, and relates to the technical field of energy storage systems. According to the method, the interval of each phase of current is determined according to the three-phase output current acquired by the current sensor, and the basic dead zone compensation amount is dynamically calculated by combining the preset linear function, so that the problem of overcompensation or undercompensation caused by the fact that the existing fixed compensation amount method does not consider the compensation demand difference of different current magnitudes is avoided; the compensation direction is determined by obtaining the instantaneous value of each phase of modulation wave so as to obtain the target dead zone compensation amount, and accurate matching of the compensation direction and the expected output voltage direction is ensured; and the target dead-zone compensation amount and the original modulation wave are superposed to generate a corrected modulation wave, and then a pulse width modulation signal driven by a switching tube is generated, so that the pulse width modulation waveform difference caused by dead-zone time can be effectively counteracted, the output current harmonic wave of the energy storage converter is reduced, and the energy storage efficiency is improved. And stable and reliable operation of the energy storage converter and the whole energy storage system is ensured.

The application discloses an electromagnetic detection optimized bipolar SHMPWM transmitting method, which comprises the following steps: S1, by analyzing the influence of the resistive and inductive load on the transmitting current waveform distortion and the transmitting spectrum energy loss, extending the current waveform based on the equal-area principle, compensating for the lost transmitting current spectrum energy, and calculating the current waveform extension time; S2, considering the inductive load and the dead zone effect, establishing a bipolar SHMPWM nonlinear equation set; S3, using the particle swarm algorithm to iteratively operate the bipolar SHMPWM nonlinear equation set, and obtaining the solving result of the switching angle of the half-cycle symmetric SHMPWM. The application adopts the optimized particle swarm algorithm to solve the equation set to obtain the switching angle, and realizes that the frequency domain information of the half-cycle symmetric SHMPWM frequency focusing waveform conforms to the specific harmonic amplitude set by the expectation.

The invention relates to the technical field of power supply and distribution systems, and discloses a state-aware undisturbed switching control method for a heat pipe cooling double-loop system, which comprises the following steps of: acquiring a hot node temperature and a steady-state integral operator value of a main heat dissipation distribution branch for representing a power load heat dissipation state, and synchronously monitoring cold-state temperature response data of a standby branch; constructing a dynamic thermal resistance topological model and substituting a steady-state integral operator numerical value to inversely calculate an integral preset initial value; according to the invention, the switching logic is reconstructed to an automatic control function unit logic domain, a mechanical execution dead zone and phase change latent heat hysteresis are cooperatively eliminated, and the thermal power regulation execution unit is controlled to be stable and reliable. Transient thermal pulsation of a power distribution environment is suppressed, and thermal safety of a high-power load power supply link is guaranteed.

The present invention relates to a circuit unit (5, 7) for actuating a half-bridge circuit and to a circuit arrangement having a multiplicity of such circuit units (5, 7). The circuit arrangement is designed to take a control signal (S1, S2) for complementary switching of a first semiconductor switch (T1) and a second semiconductor switch (T2), which form the half-bridge circuit, as a basis for dynamically adapting a dead time between respective switched-on states of the first semiconductor switch (T1) and the second semiconductor switch (T2), in order to reduce a power loss of the circuit arrangement.