445 results about "Off time" patented technology

The invention discloses an energy storage system and a parallel operation control method thereof. The system comprises a battery cluster, a battery management system and an energy storage converter. The battery management system is respectively connected with the battery clusters and the energy storage converter, and the plurality of battery clusters are connected with the energy storage converter through the coupling circuit. Wherein a pre-charging equalization loop is arranged between the battery cluster and the energy storage converter, and the battery management system is used for controlling connection or disconnection of a circuit. The battery management system is also provided with a threshold module which is integrated with a plurality of parallel operation thresholds and is used for judging the switching-on or switching-off time of the contactor. By constructing a coupling system containing a pre-charging equalization loop, the problems of impact current and device damage caused by large inter-cluster voltage difference in the parallel operation process of a traditional multi-battery energy storage system are solved; and meanwhile, through a strategy of setting multiple parallel operation threshold values, targeted current balancing can be carried out according to different dynamic working conditions and electric energy parameter differences, the impact current is prevented from being too high, components are protected, and the operation stability of the system is improved.

The invention relates to an intelligent identification and conversion control method for a charging interface of a multi-standard charging pile in the field of new energy automobiles, and the method comprises the steps: carrying out the mode matching analysis of interface physical feature data and communication signal feature data, and obtaining a preliminary classification result of the type of a charging interface device; according to the loading result of the communication configuration parameters, obtaining a confirmation feedback signal of successful protocol switching; judging whether the load demand data conforms to a rated output power range of a charging interface device or not; according to the authorization instruction, current intensity data including a peak value and an average level and voltage level data including a fluctuation amplitude in the charging process are monitored in real time; if the current intensity data or the voltage level data exceed a preset safety threshold value, power supply connection is disconnected, and a circuit path is cut off; and generating a power-off record log containing abnormal fluctuation data and a power-off moment according to a result of disconnecting the power supply connection.

The invention provides an IGBT (Insulated Gate Bipolar Translator) turn-off time measuring method, system, equipment and medium, and belongs to the field of power semiconductor device testing technology and state monitoring, and the method comprises the following steps: firstly, selecting 20% Vdc and 80% Vdc as turn-off initial measuring points, secondly, carrying out first error correction by adopting a linear estimation method, and finally, carrying out second error correction by adopting a linear estimation method; performing linear fitting on the voltage difference Vce data through a least square method to obtain initial turn-off time; and finally, aiming at systematic deviation caused by inherent concavity and convexity characteristics of the voltage curve, performing secondary error correction by adopting a convex hull algorithm, acquiring a lower envelope line of the ic-tOFF relation curve through an Andriw algorithm, and identifying and eliminating the problem of Overestimation of the turn-off time based on a convex hull accurate point set. According to the invention, accurate measurement of the turn-off time of the IGBT under the condition of low sampling rate is realized, the hardware cost is significantly reduced, and a reliable technical basis is provided for IGBT state monitoring and life prediction.

The invention discloses a power modulation method and system for an all-solid-state power supply, and belongs to the technical field of pulse power. The method comprises the following steps: converting a target waveform into a multi-level discrete waveform, and segmenting the multi-level discrete waveform into a plurality of continuous sub-waveforms according to polarity; for each sub-waveform, identifying all level switching moments, obtaining a time-level number corresponding relation, and generating a corresponding switching action time sequence matrix; the row index of the switching action time sequence matrix corresponds to the level number, the odd-numbered columns store the turn-on time parameters of the switching devices under the corresponding level number, and the even-numbered columns store the turn-off time parameters of the corresponding switching devices; and converting the switching action time sequence matrix into period counting based on an FPGA main clock, and generating a corresponding driving pulse signal by the FPGA according to time sequence data so as to control a switching device in the all-solid-state power supply and carry out power modulation. High-real-time and high-precision control on the switch of the solid-state power supply is realized, and the effect of arbitrary waveform power modulation is realized.

A rectifier includes digital timers to control FET switching rather than direct measurement of current and / or voltage. The digital timers control turn-off time to compensate for a delay produced by comparators in the rectifier. The digital timers are adjusted over multiple cycles to arrive at a turn-off time that produces zero current turn-off. The digital timers may be periodically or continuously readjusted based on a preceding set of cycles. Adaptive turn-off via digital timers is useful for discontinuous conduction mode suppression.

The invention discloses a load transient detection circuit of a COT Buck, a corresponding COT Buck and a switching power supply. The load transient detection circuit comprises an input end, three resistors connected in series, two comparators and a switched capacitor sampling hold circuit, wherein the input end is grounded after passing through the three resistors in sequence. A node between the input end and the first resistor and a node between the second resistor and the third resistor are connected to the input ends of the first comparator and the second comparator through a switched capacitor sampling hold circuit structure. Valley voltage information and peak voltage information of inductive current are obtained through the switched capacitor sampling hold circuit, whether a load is transiently changed or not is judged by comparing inductive current ripples with a valley value and a peak value, and it is guaranteed that the switching power supply has appropriate transient detection trigger threshold voltage under any load. According to an output signal of the load transient detection circuit, the COT Buck can increase the turn-on or turn-off time so as to enhance the transient response speed.

The invention provides a conduction time control circuit and a switch conversion system, and relates to the technical field of electrical control. For any sampling period, a ramp signal generation module in the turn-on time control circuit generates a ramp signal according to the input voltage; the peak value sampling module is used for acquiring the peak voltage of the ramp signal in the current sampling period; the error amplification module determines an error signal according to the peak voltage and the output voltage; the on-time generation module generates a state indication signal according to the error signal and the ramp signal, so that the charging module adjusts its own charging / discharging state according to the state indication signal to adjust the peak voltage of the ramp signal in the next sampling period, thereby improving the on-off time of a switching tube under the DC-DC converter. On the basis, on the basis of improving the accuracy of the on-off time of the converter, the problems of structural complexity and high power consumption of the control circuit can be reduced.

The invention relates to the technical field of output control, in particular to a COT-based constant voltage control method, device and equipment and a storage medium, and the method achieves the precise control of the total duration of a target period through the dynamic adjustment of the turn-off time on the basis of the fixed turn-on time, can quickly respond to the sudden change of a load, and improves the stability of the load. The overshoot or undershoot phenomenon of the output voltage is reduced; specifically, voltage information is sampled in real time within the period conduction time, and the turn-off time of the next period is immediately adjusted after the period is ended, so that error accumulation caused by delayed adjustment in a traditional control mode is avoided, the dynamic response capability to battery voltage fluctuation is enhanced, and the output precision is improved; besides, a strategy of synchronous opening and unified adjustment of turn-off time is adopted, so that the consistency of the turn-off time of multi-path output in a starting stage and a subsequent period is ensured, load change disturbance caused by asynchronous turn-off is avoided, and voltage rise deviation of a later turn-off channel is reduced.

The invention discloses a communication power supply load measurement and calculation and air switch control method and system based on service priority, and relates to the technical field of communication power supply intelligent management. Comprising the following steps: initializing and acquiring a load service priority list and a time threshold; monitoring an AC input state, switching to a standby power supply mode when the AC input state fails, and recording a power-off moment; a hybrid algorithm of ampere-hour integration and dynamic voltage calibration is adopted to measure the residual capacity of the storage battery in real time and with high precision, and residual power supply time is dynamically predicted; when the waiting time exceeds a first threshold value and the remaining power supply time is smaller than a second safety threshold value, a turn-off instruction is generated; and dynamically generating a turn-off sequence from low to high according to the service priority list, and iteratively executing turn-off and state re-evaluation until the endurance safety requirement of the core service is met. According to the invention, the problems of low control precision, incapability of distinguishing service priorities and low resource utilization rate in the prior art are solved, and accurate, intelligent and service-aware power management is realized.

The invention provides a direct-current circuit breaker and a control method thereof, and belongs to the technical field of direct-current middle-high voltage power system fault protection. The short circuit turn-off branch comprises a first capacitor and a first thyristor; the coupling commutation branch comprises a first inductor, a second inductor, a second thyristor and a third capacitor; the rated turn-off branch comprises a first resistor and a second capacitor; the first resistor, the second capacitor, the first capacitor and the second inductor are sequentially connected in series and then are connected with the main switch branch in parallel; the first inductor, the second thyristor and the third capacitor are sequentially connected in series, and the first inductor and the second inductor form mutual inductance. By controlling the on-off of the first thyristor, the first capacitor and the second capacitor are connected in series, the capacitance value is reduced, large-capacitance-value operation of a single group of capacitors is realized, and the problem that the on-off time of rated and lower low-current breaking is relatively long can be solved.

The application discloses an energy-saving control method of a CSR high-frequency PWM rectifier circuit. According to the value change of each line voltage of three-phase alternating current in a rectifier circuit and the characteristic that the rectifier circuit works at a high frequency, the two pulse wave edges of two phases of the three-phase alternating current are overlapped. The overlapping time of the overlapping of the two pulse wave edges is equal to the sum of the turn-on time and the turn-off time of a switching tube, so that the front edge or the rear edge of a pulse of a switching signal is in a soft switching state or in a cut-off low voltage state, thereby reducing the switching process loss of the switching tube. The application provides the energy-saving control method of the CSR high-frequency PWM rectifier circuit, which can reduce switching loss, reduce cost, save energy, prolong service life and is safe and reliable.

The utility model discloses an automatic switching device for a DC power supply, and the device comprises a main control module which is used for obtaining the potential difference of two DC buses at different sampling moments through a voltage detection module, and obtaining a target voltage according to the potential difference; and if it is monitored that the bus battery pack voltage of one section of direct-current bus is abnormal based on the target voltage, controlling a contactor to pull in so as to make the two sections of direct-current buses parallel, thereby using a normal power supply to supply power to the abnormal direct-current bus. According to the invention, a normal power supply is automatically and quickly used to replace an abnormal power supply to supply power to the DC bus with abnormal power supply, the current situation of passive and hysteresis operation of personnel is changed, uninterrupted power supply is realized, the power failure time is reduced, loss caused by power failure is avoided, the user experience is improved, and the application prospect is wide. According to the invention, automatic switching of the dual power supplies during fault, maintenance and operation mode adjustment is realized, the operation of operation and maintenance personnel on equipment is reduced, and the safety coefficient of operation is improved.

The invention discloses a power management method and system of a vehicle-mounted MCU, electronic equipment and a storage medium, and relates to the field of vehicle chips.During starting, a first core and a second core are powered on at the same time, and the first core starts an external power supply interface and a power supply according to a preset time sequence; when the first core needs to be switched to the dormant state, the first core interacts with the vehicle-mounted module to obtain vehicle parameters, after the dormant mode is judged, the peripheral power supply is turned off, the second core is started to monitor and wake up a source interface, and the first core enters an under-voltage dormant state; when the second core detects the wake-up condition and the power-off duration of the first core reaches the standard, the second core is controlled to restore power supply and transmit wake-up source information; after the first core is powered on, key data are read, the data are recovered after the integrity is verified through the check code, and then the external core and the external power supply are started according to a preset time sequence. According to the scheme, low-power-consumption operation, rapid and reliable awakening and data safety guarantee of the vehicle-mounted MCU are achieved through dual-core cooperation, dynamic dormancy judgment and data verification backup mechanisms, and the vehicle-mounted MCU is adaptive to vehicle-mounted complex working conditions.

A vehicle receives SoC information of the battery when the vehicle is in a parked state, determines whether a charged amount of the battery is lower than or equal to a preset charged amount based on the received SoC information of the battery, determines whether a current time is included in a use time zone based on use time information of the remote service when it is determined that the charged amount of the battery is lower than or equal to the preset charged amount, adjusts a cut-off time point of power supply of the battery in response to whether the current time is included in the use time zone, and transmits a power supply cut-off command of the battery to the battery management apparatus.

The invention relates to the technical field of output control, in particular to a constant power control method, device and equipment based on COT and a storage medium, according to the method, fixed turn-on time is combined with dynamic turn-off time adjustment, the conciseness of COT control is reserved, accurate control over output power is achieved, and the control efficiency is improved. The influence of interference factors such as battery voltage drop and load abrupt change on constant power output can be effectively counteracted; specifically, a multi-path output synchronous opening design is adopted, and unified turn-off time adjustment logic is combined, namely, the turn-off time of a (k + 1) th period is calculated according to the total duration of a target period, so that an asynchronous turn-off condition caused by parameter differences of all channels is avoided, and the voltage rise deviation generated by load changes of a later turn-off channel is reduced; real-time output voltage and load resistance are respectively sampled in one period, battery voltage fluctuation and load change are monitored in real time, and error accumulation caused by the fact that a measured value in the current period is extended to the next period to be adjusted is avoided.

The invention discloses a battery static maintenance time prediction method and system, and mainly relates to the technical field of vehicle storage battery state monitoring and prediction. Comprising the following steps: collecting battery parameters of a vehicle at multiple power-off moments and power-on moments, and collecting data in a classified manner according to an electric switch state of a storage battery power supply 30; based on the collected battery parameter data, training a self-feedback radial basis function neural network (RBFNN) model; during the power-off period of the vehicle, the battery parameters at the last power-off moment are read regularly, the corresponding trained RBFNN model is selected according to the state of the 30-electric switch, and the battery parameters are input to predict the static maintenance time; and calculating the time difference from the current time to the last power-off time and the remaining holding time, comparing the remaining holding time with a preset time threshold value, and sending charging reminding information to the user through the cloud system. The method has the beneficial effect that the problems of battery loss and incapability of starting the vehicle due to long-term static state of the vehicle can be effectively avoided.

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.

The application relates to a critical conduction mode control method of a totem-pole PFC converter, which utilizes energy equivalence to determine the resonance process of inductor current at switching commutation, carries out totem-pole Boost inductor current value estimation, and on this basis, utilizes a current zero-crossing point prediction algorithm to calculate the turn-on and turn-off time to generate corresponding active tube-synchronous rectifier tube commutation dead time T d,f , synchronous rectification conduction time T SR , rectifier tube-active tube commutation dead time T d,r ; the PWM drive signals of high-speed switching tubes Q1 and Q2 are generated by T on , T d,f , T SR , T d,r ; the power frequency drive signals of low-speed switching tubes Q3 and Q4 are generated by comparing the input alternating voltage v ac with a hysteresis comparison loop and 0. The method can effectively get rid of the dependence on a current zero-crossing detection circuit and a current sensor, reduces the cost and improves the system stability.

The invention discloses an adjustable frame of a hydraulic lifting type hand fork truck, and relates to the field of distribution network equipment maintenance auxiliary tools, the adjustable frame comprises a hand fork truck frame, a manual hydraulic cylinder, a pedal plate, a crank arm grip, a main wheel, a cross beam, a chain and a pressure release valve, the side, away from the main wheel, of the bottom of the hand fork truck frame is fixedly provided with a supporting plate; a wheel groove is formed in the end, away from the hand forklift frame, of the supporting plate, an auxiliary wheel is arranged in the wheel groove in a rolling mode, and the upper portion and the lower portion of the auxiliary wheel protrude out of an upper opening and a lower opening of the wheel groove respectively. According to the invention, the size of the handcart frame is matched with the size of the voltage transformer handcart, so that the purpose of transporting the voltage transformer to the handcart for efficient replacement is achieved; the forklift frame is used for lifting equipment, so that the problem of labor waste is solved, the operation space of workers is optimized, the working risk caused by manual work is reduced, the working efficiency is improved, the power failure time of the equipment is shortened, and convenience is brought to the replacement work of the voltage transformer.

This invention discloses a load transient detection circuit for a COT Buck converter, along with a corresponding COT Buck and a switching power supply. The load transient detection circuit includes an input terminal, three resistors connected in series, two comparators, and a switched-capacitor sample-and-hold circuit. The input terminal is grounded after passing through the three resistors. The nodes between the input terminal and the first resistor, and between the second and third resistors, are connected to the input terminals of the first and second comparators via the switched-capacitor sample-and-hold circuit. The valley and peak voltage information of the inductor current is obtained through the switched-capacitor sample-and-hold circuit. By comparing the inductor current ripple with the valley and peak values, a transient change in the load is determined, ensuring that the switching power supply has a suitable transient detection trigger threshold voltage under any load. The COT Buck of this invention increases the on or off time based on the output signal of the load transient detection circuit to enhance the transient response speed.

A single-fracture load isolation switch for a contact network relates to the technical field of isolation switches, and is used for solving the problem of short service life caused by defects between a main knife switch-on and switch-off time sequence and an arc extinguishing time sequence of an existing load isolation switch. Comprising a switch main body and a main knife contact plate, the switch main body is provided with a movable side wiring terminal and a static side wiring terminal, and a first end of the main knife contact plate is in hinge connection with the static side wiring terminal and is in contact connection with a static side main knife contact on the static side wiring terminal; and when the second end of the main knife contact plate is in contact with a movable side main knife contact on the movable side wiring terminal, closing is realized, at the moment, the movable side wiring terminal, the movable side main knife contact, the main knife contact plate, the static side main knife contact and the static side wiring terminal form a main conductive loop, and an auxiliary conductive loop which is arranged in parallel with the main conductive loop is also included. According to the invention, the problems of opening and closing and arc extinguishing time sequence of the main knife contact plate can be effectively solved, so that the isolating switch can work normally.

When a DC power source fails, the following controls are performed. The normal control is resumed when an inverter input voltage recovers before a standby period elapses after a power failure time. A power source relay is turned off when the standby period elapses without recovery of the voltage. The power source relay is turned on again when a power source relay off period has elapsed from a turn-off time. The normal control is resumed when the inverter input voltage recovers at the turn-on time. The normal control is resumed when the inverter input voltage recovers before the power source relay on period elapses from the turn-on time. The power source relay is turned off, and driving of the actuator is stopped, when the power source relay on period passes without recovery of the voltage.

This utility model discloses a switch control circuit with adjustable on / off phase, including a parameter setting unit that inputs a preset on / off phase value or a preset on / off time value; a zero-crossing detection unit that generates and outputs a zero-crossing synchronization signal; a control unit that uses the zero-crossing synchronization signal as a phase calculation reference and controls the switch unit to perform on / off actions based on the preset on / off phase value or preset on / off time value; a correction detection unit that outputs a phase correction signal; and a control unit that calculates and corrects the phase deviation of the control unit's on / off actions based on the phase correction signal. Thus, the zero-crossing detection unit continuously outputs a zero-crossing synchronization signal, the control unit uses the zero-crossing synchronization signal as a phase calculation reference, combines the preset on / off phase value or preset on / off time value to control the switch unit to perform on / off actions, and corrects the phase deviation based on the phase correction signal from the correction detection unit, ensuring stable on / off control. It features flexible sampling methods, high control accuracy, and a wide range of applications.

The utility model belongs to the field of static change-over switches, and provides a static change-over switch, which comprises a machine body provided with an external power supply connecting end, a load connecting end and a standby power supply connecting end, and the standby power supply connecting end is electrically connected with the load connecting end; and the mainboard and relay integration is arranged in the machine body and is electrically connected with the mainboard, the external power supply connecting end, the load connecting end and the standby power supply connecting end. Compared with the prior art, the static change-over switch has the advantages that the relay is integrally arranged in the machine body and matched with the main board, the relay is adopted as a turn-off element of the static change-over switch, the turn-off time can be shortened to about 10ms, the defect that a thyristor does not conform to safety regulations is overcome, and the defects that a contactor is low in turn-off speed and high in cost are overcome. According to the technical scheme, the static change-over switch is economical and low in manufacturing cost, the stability and reliability of the whole system are guaranteed, and rapid switching of the static change-over switch between the grid-connected mode and the off-grid mode can be achieved.

The application discloses a backlight erasing method and device, equipment and storage medium, relates to the display technical field, and is applied to a display device. The display device contains multiple rows of physical backlight partitions, and the method comprises the following steps: acquiring a preset lighting frequency of each row of physical backlight partitions within a frame time; dividing each row of physical backlight partitions into multiple logical rows according to the preset lighting frequency; determining the total number of logical rows that need to be lighted within the frame time according to the total number of physical backlight partitions and the preset lighting frequency; determining the reference time occupied by each logical row according to the total number of logical rows and the refresh rate of the display device; generating the on-off time sequence of the multiple rows of physical backlight partitions within the frame time based on the total number of logical rows and the reference time; and controlling the multiple rows of physical backlight partitions to perform lighting and extinguishing operations according to the on-off time sequence, so as to realize backlight erasing. The application realizes stable and flicker-free backlight erasing effect.

The application discloses a fixing device for solving the difficulty in connecting a 10kV line cable and a bypass cable, and mutually clamped first clamping jaws and second clamping jaws, one end of the first clamping jaws and the second clamping jaws is connected with a clamping piece, the inside of the upper end clamping piece of the first clamping jaw is provided with a hanging head, and the inside of the lower end clamping piece of the second clamping jaw is provided with a cable bridging device. The device is provided with safety reduction safety risks. In the load transfer work of the 10kV line cable head in the station, after the device is used, the phase-to-phase short circuit risk is reduced, the safety of the operating personnel is effectively guaranteed, and the economic benefit of the company is effectively improved. Under normal circumstances, the 10kV line in the transformer substation needs to be powered off for primary and secondary equipment maintenance, testing, and comprehensive self-reconstruction, which causes a large number of households to be powered off and a long power-off time. After the device is used, the whole station power-off can be avoided, the power supply capacity is improved, and the labor intensity is reduced.

The application relates to an interleaved BUCK circuit and a driving power supply, which comprises an interleaved BUCK control unit, a first BUCK power conversion unit, a second BUCK power conversion unit and a feedback unit; the feedback unit detects the voltage / current signal of the output end of the driving power supply and outputs a feedback signal; the interleaved BUCK control unit controls the off time of the first BUCK power conversion unit and the second BUCK power conversion unit according to the feedback signal, and controls the on time of the first BUCK power conversion unit and the second BUCK power conversion unit according to the zero-crossing signals of the first BUCK power conversion unit and the second BUCK power conversion unit; and the interleaved BUCK control unit also balances the power of the first BUCK power conversion unit and the second BUCK power conversion unit. The application can meet the demand of high power, has small volume, is convenient for heat dissipation, is low in cost, can realize power balance and guarantee the balance of the output.

The application discloses a power modulation method and system of a full solid-state power supply, and belongs to the technical field of pulse power. The method comprises the following steps: converting a target waveform into a multi-level discrete waveform, and dividing the multi-level discrete waveform into a plurality of continuous sub-waveforms according to polarity; for each sub-waveform, identifying all level switching moments to obtain a time-level number corresponding relationship, and generating a corresponding switch action time sequence matrix; the row index of the switch action time sequence matrix corresponds to the level number, and the odd columns store the turn-on time parameters of the corresponding switch devices under the corresponding level number, and the even columns store the turn-off time parameters of the corresponding switch devices; the switch action time sequence matrix is converted into period counting based on the main clock of the FPGA, and the FPGA generates corresponding driving pulse signals according to the time sequence data, so as to control the switch devices in the full solid-state power supply and perform power modulation. The switch of the solid-state power supply is controlled with high real-time performance and high precision, and the effect of arbitrary waveform power modulation is realized.

The application discloses a dead time control circuit and electronic equipment, and belongs to the technical field of electronics. The dead time control circuit comprises an inductive element, a first field effect tube connected with the inductive element, a second field effect tube connected with the inductive element and the first field effect tube, a detection circuit for detecting a first switching state of the first field effect tube, a second switching state of the second field effect tube and a current flow direction of the inductive element, a logic judgment circuit for outputting an adjustment mode signal of a dead time, a first off time and a second off time according to the first switching state, the second switching state and the current flow direction, an operation circuit for outputting a dead time control signal according to the first off time and the second off time in an adjustment direction indicated by the adjustment mode signal, and a time delay circuit, wherein the dead time control signal is used for adjusting a time delay value of the time delay circuit to adjust the dead time of the first field effect tube and the second field effect tube.

The invention discloses a self-adaptive direct connection prevention double-N-type output driving circuit which comprises a first control circuit, a second control circuit, an output driving stage upper tube, an output driving stage lower tube, a diode D1, a resistor R1 and a resistor R2. The output driving stage upper tube MN1 and the output driving stage lower tube MN2 are NMOS (N-channel metal oxide semiconductor) tubes; the first control circuit is used for controlling the output driving stage upper tube to be conducted when a first time sequence signal CLK is valid; and the second control circuit is used for controlling the output driving stage lower tube to be switched on in a time delay manner when the first time sequence signal CLK is invalid. In the invention, the switch-on time and the switch-off time of the two channels can be respectively controlled by adjusting the resistor R1 and the resistor R2, and an NMOS tube with higher carrier mobility is used as a pull-up tube, so that the current pull-up capability is stronger; and self-adaptive conduction of the output driving stage upper tube and the output driving stage lower tube is formed, so that the high-speed GaN power tube driver can be suitable for a high-speed GaN power tube driver.