933 results about "Load circuit" patented technology

The invention relates to a simple and reliable touch control switch. The simple and reliable touch control switch consists of a 12-V direct-current power supply, a one-way silicon controlled rectifier 1 (SCR1) trigger circuit, a one-way silicon controlled rectifier 2 (SCR2) trigger circuit, a relay control circuit and a load RL circuit. A conventional mechanical self-locking rocker switch or a toggle switch has the defects that actions are mechanical, operating actions are different because of persons, a contact is easy to jitter, a contact is easy to ablate, abrade and the like. The touch control switch is realized by only using a small number of common components and two touch metal pieces, namely an on-load circuit is switched on by touching a touch electrode once, and an off-load circuit is switched off by touching the touch electrode once. The overall touch control switch is made of discrete components, and strong electricity can be effectively isolated from weak electricity through a relay, so that the power supply of a load can use alternating current and also can use direct current. Therefore, the touch control switch has a certain function in the field of household appliances, industrial automation, and optical, mechanical and electrical integration.

The utility model relates to an electrolytic capacitor energy storage type relay driving circuit for an electricity meter and terminal equipment. The electrolytic capacitor energy storage type relay driving circuit comprises a processing unit, an electrolytic capacitor energy storage unit, a driving unit and an electric pull-in relay, the input end of the electrolytic capacitor energy storage unit is used for being connected with a power supply end; a first input end of the driving unit is connected with the electrolytic capacitor energy storage unit or the power supply end, and a second input end and a third input end of the driving unit are in communication connection with the processing unit; the first input end of the electric pull-on relay is connected with the first output end of the driving unit to indirectly conduct the first input end, the second input end and the third input end of the driving unit; the second input end of the electric pull-on relay is connected with the second output end of the driving unit to indirectly conduct the first input end, the second input end and the third input end of the driving unit, and the output end of the electric pull-on relay is used for being connected with a load circuit. The utility model solves the problems of high energy consumption and low response speed.

The utility model provides a controllable electromagnetic release and a miniature circuit breaker, and relates to the technical field of circuit breakers, in order to solve the problem of rapid opening of an intelligent miniature circuit breaker in the prior art, the controllable electromagnetic release comprises a sleeve, a magnetic pushing mechanism, a first coil, a control circuit and a second coil, the first coil and the second coil are wound on the outer side of the sleeve respectively, the two ends of the first coil are connected to a load circuit, the two ends of the second coil are connected with the control circuit, when the load circuit is short-circuited, the first coil drives the magnetic pushing mechanism to cut off a power supply loop, and when the load circuit is short-circuited, the magnetic pushing mechanism drives the magnetic pushing mechanism to cut off the power supply loop. And when the control circuit controls the second coil to be electrified, the magnetic pushing mechanism cuts off the power supply loop. The controllable electromagnetic release can realize active quick release, and is minimum in occupied space and low in cost.

A self-triggering, bidirectional control electronics component for an electronic switch (50), for the detection and rapid shutdown of currents at a selected threshold value for both current flow directions, includes a threshold switch having a plurality of selectable shutdown threshold values for both current flow directions, the threshold switch coupled to a bidirectional current sensor system (65), arranged in the electronic switch, based on sensing of sensors on an input side of the threshold switch; and a high-speed de-energizing circuit (53) on an output side of the threshold switch including a high non-load circuit voltage for rapid removal of current from a magnetic drive coil (45), the high-speed de-energizing circuit being configured to rapidly remove the current from the magnetic drive coil when the bidirectional current sensor system senses a current greater than or equal to the selected threshold value among the plurality of selectable shutdown threshold values.

A DC electronic load circuit relates to the technical field of electronic load control. The utility model provides a direct current electronic load circuit which integrates a dissipation MOS tube array, an analog PID loop, a digital integrated control module, a bus electrical parameter sampling and processing module and a WiFi communication module, and realizes a plurality of working modes such as constant current, constant voltage, constant resistance and constant power by accurately controlling the conduction degree of the MOS tube array. The system has the advantages of real-time monitoring, remote control, overvoltage and overcurrent protection, low power consumption design and the like, and an electronic load solution which is high in precision, high in stability and flexible to operate is provided, so that diversified test requirements are met, and the power supply test efficiency and safety are improved.

The embodiment of the invention provides a circuit protection device and a chip, and the device comprises a detection module which is used for detecting whether the voltage of a power supply exceeds a voltage protection threshold, and outputting a low-level signal to a time hysteresis control module when the voltage exceeds the voltage protection threshold; if not, a high-level signal is output to the time hysteresis control module; the time hysteresis control module is used for receiving the low-level signal output by the detection module and controlling an MOS tube in the time hysteresis control module to be turned off; and the control module is used for receiving the high-level signal output by the detection module, timing and controlling the MOS tube to start when the timing time reaches the preset time, so that the problem that the power supply end fluctuates between a protection mode and a normal working mode when the input power supply rapidly fluctuates in the overvoltage and power failure protection circuit in the related technology is solved. In addition, common simple devices are needed for implementation, the cost is low, and the reliability is high.

The invention relates to the technical field of battery energy storage management, in particular to a distributed light energy storage management method based on a string type energy storage system, which comprises the following steps of: 1, constructing a regional terrain model, and calculating theoretical conversion power based on the total power generation area, component conversion power and power generation loss coefficient of a photovoltaic power generation panel array; 2, performing sunlight irradiation simulation to calculate a shielding parameter value; 3, analyzing and calculating a coverage influence value based on the total suspended particulate matter index of the installation position; 4, obtaining the annual average irradiance of a region corresponding to the installation position, recording the annual average irradiance as G, and analyzing and calculating a power measurement and calculation value in combination with a shielding parameter value, a coverage influence value and theoretical conversion power; 5, calculating a daily average power generation predicted value and a peak power generation predicted value based on the average sunshine duration and the peak sunshine duration; calculating the required peak electric quantity of the load circuit; the energy storage units are divided into storage units and circulation units, and the set number of the storage units and the set number of the circulation units are calculated.

The invention relates to the technical field of voice recognition and intelligent household electrical appliance control, in particular to an induction cooker control method based on voice recognition, which comprises the following steps: synchronously acquiring a voice signal and a lip motion signal, and generating multi-modal sensing data through timestamp alignment; performing cross-modal anti-noise processing on the data, and outputting a fusion feature tensor fusing acoustic and visual features; semantic analysis and danger instruction recognition are executed, and a risk filtering control instruction containing temperature / fire parameters is generated; calling a thermodynamic dynamic model to calculate a power control parameter based on the instruction parameter; converting a power parameter into a space vector modulation waveform to drive a load circuit, and synchronously collecting the pot bottom temperature; and triggering an anti-noise process and thermodynamic model parameter updating according to the deviation between the actual temperature and the target temperature. Noise interference is reduced through multi-modal signal cross validation, dangerous instructions are intercepted in combination with knowledge graph constraints, the noise suppression capability and the temperature control precision are continuously optimized, and the safety and reliability of voice control in a complex environment are improved.

The present application discloses a low-cost and high-performance radio-frequency amplifier, comprising an input stage circuit, a common-gate stage circuit, and an output load circuit. The input stage circuit implements conversion from a single-ended signal to a differential signal, implements input impedance matching, and converts an inputted radio-frequency voltage signal into a radio-frequency current signal. The input stage circuit comprises a first three-coil transformer, consisting of a primary coil, a secondary coil, and a third coil. The common-gate stage circuit transmits the radio-frequency current signal outputted by the input stage circuit to the output load circuit, increases the withstand voltage and equivalent output impedance of the circuit, and implements gain control in at least two modes. The output load circuit converts the radio-frequency current signal from the common-gate stage circuit into a radio-frequency voltage signal, implements conversion from a differential signal to a single-ended signal, and outputs an amplified radio-frequency voltage signal. The present application provides a radio-frequency amplifier having a small size, broadband matching, high linearity, a large dynamic range, and low design complexity.

A circuit includes a transformer including a primary coil and a secondary coil, the primary coil and the secondary coil being inductively coupled to one another. The circuit further includes an excitation driver circuit having a driver input and a driver output. The driver output is coupled to the primary coil and a clock circuit having a clock output is coupled to the driver input. Furthermore, the circuit includes a clock detection circuit having a detection input and a detection output, wherein the detection input is coupled to the secondary coil and a data interface circuit having a clock input, a data input and an interface output, the clock input coupled to the detection output. In addition, the circuit includes a load circuit coupled between the interface output and the secondary coil, the load circuit including a modulation input coupled to the interface output.

The utility model discloses a dual-power switch power distribution system and a control device and an air conditioner thereof, and the device comprises a main power supply and a standby power supply which are connected to a load side circuit breaker after passing through a dual-power switch system; the standby power supply is also connected to the first connecting end of the bypass system; the second connecting end of the bypass system is connected to a circuit breaker of a second-level load and a common end of the second-level load; under the condition that short-circuit faults occur between the main power supply and the load-side circuit breaker and between the standby power supply and the load-side circuit breaker, the dual-power switch system disconnects the main power supply and the standby power supply, and the bypass system controls the standby power supply to supply power to the second-level load through the circuit breaker of the second-level load. According to the scheme, the bypass system is added to the dual-power switch power distribution system, the bypass system is used for supplying power to the second-level load, namely the important load when the short-circuit fault occurs between the dual-power switch and the load circuit breaker, and the reliability of the dual-power switch power distribution system is improved.

The invention provides a test platform for a power management chip. The test platform comprises an upper computer, a control panel, a load daughter board and an instrument, the control board is configured to receive a test instruction sent by the upper computer, configure the instrument based on the test instruction, send a test signal to the load daughter board, receive a response signal sent by the load daughter board, obtain a test result based on the response signal and send the test result to the upper computer; the load daughter board is configured to bear the tested power management chip, receive the test signal sent by the control board, match the test signal to the tested power management chip, obtain a response signal output by the tested power management chip and send the response signal to the control board; wherein the load daughter board is provided with a load circuit and is configured to provide a peripheral circuit for the tested power management chip, and the control board is further configured to switch the type of the load circuit. Wherein different types of power management chips can be verified by switching the types of the load circuits on the load daughter board.

The invention discloses an electric aircraft power load controller system and a working method thereof, and belongs to the technical field of electric aircraft controllers, and the electric aircraft power load controller system comprises a main power module, a pre-charging module, a discharging module, a monitoring control module, a power supply module, a communication module and a terminal. Through the mode, the solid-state power switch and the high-power mechanical switch are connected in parallel, and the control time sequence of the two switches is set, so that the high-voltage high-power electric load circuit can be suitable for the application scene of a high-voltage high-power electric load of an electric aircraft, and has good capacitive load adaptability and electric arc protection performance; and controllable pre-charging of the equivalent capacitance of the high-voltage line is realized by controlling the semiconductor power switch by utilizing the impedance characteristic of the semiconductor power switch in the saturation region through the pre-charging module, so that the complexity and the weight of equipment are reduced.

The invention provides a power supply control circuit, a load circuit, a power supply system and terminal equipment. The system comprises the power supply control circuit and the load circuit. The power supply control circuit comprises a power supply control module, a first switch and a second switch; the load circuit comprises a handshake circuit; the power supply control module is electrically connected to the power supply line through the first switch, the power supply control module is also electrically connected to the power supply line through the second switch, and the handshake circuit is electrically connected to the power supply line; the power supply control module is used for obtaining a power supply demand of a target load from the handshake circuit by controlling the first switch to be switched on and controlling the second switch to be switched off; the power supply control module is further used for supplying power to the target load through the power supply line based on the power supply demand by controlling the first switch to be switched off and controlling the second switch to be switched on. The cost can be reduced, and the line complexity can be reduced.

The invention discloses a power factor correction control circuit and a household electrical appliance, and the circuit comprises a rectification module which is connected to an AC power supply; the first end of the switching device is electrically connected with the first output end of the rectification module through an inductance device, and the second end of the switching device is electrically connected with the second output end of the rectification module through a resistance device; the first end of the load circuit is connected to the first end of the switching device, and the second end of the load circuit is connected to the second end of the switching device; the controller is electrically connected with the control end of the switching device, and is configured to obtain the input voltage of the load circuit and the output current of the rectification module; according to the input voltage and a preset voltage reference value, the step-up rate is obtained through calculation, and the preset voltage reference value is obtained through feedback adjustment according to the step-up rate obtained through calculation and a preset step-up rate reference value; and determining a control signal of the switching device according to the boost rate and the output current. According to the scheme, the control efficiency of the switching device can be improved.

A high current, low dropout driver circuit is disclosed. The circuit includes a decoder configured to decode a plurality of control bits to generate a plurality of control signals, and a current source having a plurality of devices. The current source is configured to activate at least a subset of the plurality of devices using the control signals to provide a load current to a load circuit, such as a light-emitting diode (LED), using activated ones of the plurality of devices and a control voltage. A control circuit is configured to generate the control voltage based on the load current and a reference current.

In on example, an apparatus includes: a first power amplifier (PA) to receive a first input radio frequency (RF) signal and output a first amplified RF signal; a second PA to receive a second input RF signal and output a second amplified RF signal; and a transformer circuit coupled to an output of the first PA and an output of the second PA. The transformer circuit is to provide, to a load circuit, an RF output signal comprising the first amplified RF signal and the second amplified RF signal.

The invention relates to a high-stability primary and secondary fusion complete column-mounted circuit breaker, and relates to the technical field of intelligent power grids, the high-stability primary and secondary fusion complete column-mounted circuit breaker comprises a circuit breaker body and a plurality of insulating columns fixedly arranged on the top surface of the circuit breaker body, and two supporting plates which are far away from each other are fixedly arranged on the left and right side edges of the bottom surface of the circuit breaker body in the horizontal direction; a plurality of fixing holes are formed in the supporting plate; the left side surface and the right side surface of the circuit breaker body are rotatably connected with a placing plate located above the supporting plate. The placing plate can be rotated to a vertically downward folding state and a horizontally outward application state, and a positioning assembly is arranged outside the circuit breaker body; according to the invention, the side surface of the circuit breaker body is rotatably provided with the placement plate which can be switched to be folded and applied, and the placement plate is adjusted to be in a horizontal outward application state during maintenance, so that an exclusive temporary tool placement space can be provided for maintenance personnel working high above the ground, a tool bag does not need to be frequently rummaged, and the tool taking time is greatly reduced.

A power supply system is installed in a vehicle having an autonomous driving mode. The power supply system includes a first load circuit connected to a first load that operates using electric power from a main battery; a second load circuit connected to a second load that operates using electric power from the main battery or an additional battery and is necessary for the autonomous driving mode; and a main relay provided on a power supply line for electrically connecting the first load and the second load. The first load circuit is located on an upstream side of the main relay. A branch point on a downstream side of the main relay defines a first path and a second path and allows a current flowing from the branch point to the second load by the first path and to the additional battery by the second path.

The application discloses and realizes a dual-mode multi-load loop arc fault detection system, and aims at the problems of insufficient precision of existing real-time arc fault detection devices and high-load continuous operation of equipment, etc., divides the fault arc into two kinds of starting arc and process arc, and uses different modes of detection methods according to different conditions of starting fault and process fault, adopts a characteristic value partition detection method in the process mode, and makes the method tend to be simple under the condition of ensuring accuracy and real-time performance. The method takes an stm32H7 as a core microprocessor, is matched with a conditioning circuit, a power supply circuit, a data acquisition circuit and a wireless communication circuit to form a dual-mode fault diagnosis system. The application has the characteristics of high monitoring precision and high speed, and has strong popularization value and use value.

The invention relates to the technical field of transfer devices, in particular to a circuit board manufacturing-based transfer device, which comprises a base, a plurality of uniformly distributed universal wheels are arranged at the lower part of the base, a push rod is arranged at the left side of the base, and support plates are arranged at the left side and the right side in the base; according to the transfer device based on circuit board manufacturing, when a circuit board is placed on the upper portion of the loading plate, the gravity of the loading plate can be increased, a synchronous belt and a synchronous wheel are pushed to rotate, a clockwork spring is curled, and the circuit board pushes a moving plate to move downwards along a sliding rod; the movable plate pulls the pull plate to rotate, the pull plate pulls the pull rod to slide to slide from the interior of the first guide groove and unlock the loading plate, the pull rod pushes the locking rod to move, and the locking rod pushes the third locking block to rotate to block the upper portion of the loading plate, so that the functions of stack type storage and falling prevention of the circuit board can be achieved.

The utility model discloses an inductive load circuit of a gallium nitride device and electronic equipment, which are used in the technical field of gallium nitride. According to the utility model, when the gallium nitride device is in a turn-off state, the drain-source electrode voltage of the gallium nitride device is clamped in the maximum withstand voltage of the drain-source electrode of the gallium nitride device through the clamping circuit, so that the gallium nitride device can be effectively prevented from being broken down by the voltage and losing efficacy; the gate-source voltage of the gallium nitride device is adjusted through a potential self-building circuit, the gallium nitride device is controlled to work in a semi-conduction state, the current of the inductor is released, and the turn-off process of the gallium nitride device is completed; according to the utility model, in the turn-off process of the gallium nitride device, the clamping circuit and the potential self-building circuit are signal circuits, the power of the gallium nitride inductive load circuit is not additionally consumed, the power loss of the gallium nitride inductive load circuit can be effectively avoided, and the system efficiency of the gallium nitride inductive load circuit is improved.

The invention relates to an electric leakage suppression system for an alternating-current power system, and the system comprises a variable-frequency compensation control module which adjusts the frequency and signal amplitude in a circuit according to the equipotential characteristics of a power utilization loop of the power system, so as to match the load characteristics and achieve the dynamic fixation of the signal amplitude; the real-time monitoring module is used for monitoring the frequency, current and voltage of the power system; the central processing unit is used for processing data from the monitoring module, executing data analysis and identifying frequency and current changes under the condition of electric leakage or electric shock; and the electric leakage suppression module is connected with the real-time monitoring module, is provided with a mechanism which is automatically activated when frequency and current are detected to be abnormal, and is used for dynamically adjusting circuit response to suppress leakage current. And the modules are connected in parallel to the power utilization loop, perform rapid self-adaptive modified modulation compensation on the parallel frequency resonance of the load loop, and dynamically adjust the current phase and amplitude so as to realize the zero potential difference of the target load end and the current suppression on the target load, and form the suppression and shielding effects on the leakage of the circuit.

The invention relates to the technical field of electronic circuits, and discloses a power supply circuit, a chip and electronic equipment. The output end of the power supply circuit is connected with the input end of a load circuit, and the power supply circuit comprises a control module, a combined switch module and an adjusting module. Wherein the control module is used for outputting a switch control signal to the combined switch module; the combined switch module is used for switching to a corresponding target switch mode according to different switch control signals; and the adjusting module is used for correspondingly adjusting the input voltage of the power supply circuit according to the target switching mode, so that mode switching of boosting the input voltage of the power supply circuit by different multiples can be realized, and the boosting efficiency is improved.

The invention provides a topology circuit of a high-voltage acceleration power supply, a control method and a high-voltage accelerator, and relates to the technical field of power supplies. The topology circuit comprises a PFC circuit, an LLC resonance circuit and a voltage doubling rectifying circuit. The pre-stage PFC circuit rectifies the input alternating current mains supply, suppresses harmonic waves, reduces ripples, and improves the power correction factor of the high-voltage acceleration power supply; the inverter circuit of the intermediate-stage LLC resonant circuit has a soft switching function, high frequency of a power conversion device can be realized, a resonant cavity limits the change rate of voltage and current in the switching process, the switching noise is reduced, and energy is transmitted to a load through a transformer and a voltage doubling rectifying circuit. The PFC circuit and the LLC resonance circuit are simple in structure and control, on the premise that the number of circuit devices is reduced, input voltage and current are in the same phase, the operation efficiency of the circuit is improved, the size of the high-voltage acceleration power supply is effectively reduced, and the power density is improved.

The invention provides a self-adaptive ripple suppression circuit based on an MOSFET, and relates to the technical field of electronic circuits. The circuit comprises an input alternating current end EMC filtering surge protection circuit, a rectification circuit, an absorption protection filtering circuit, a clamping absorption circuit, a detection protection circuit, a control circuit, a power follow current circuit, an output filtering circuit, a stroboflash removing circuit and an LED load circuit which are connected in sequence. Under the condition that the MOSFET self-adaptive ripple suppression circuit is in a working state, voltage at the two ends of the sampling resistor is fed back to a grid electrode and a source electrode of the MOS tube, on-resistance of the MOS tube is adjusted through change of the sampling voltage on the basis of the characteristic that the MOS tube works in a variable resistance area, and output current ripples are dynamically suppressed. The circuit has excellent adaptive capacity, can dynamically suppress output current ripples in a wide load range through a simple simulation negative feedback loop, and is quick in response.

A source drive include a power supply circuit that includes a charge pump, a reference source generation circuit, and a low-dropout (LDO) regulator. The charge pump includes at least two on-chip capacitors, is coupled to the reference source generation circuit, and is configured to provide a negative voltage level for the reference source generation circuit based on an external positive voltage power supply. The reference source generation circuit is coupled to the LDO regulator. The reference source generation circuit is configured to provide a reference voltage for the LDO regulator based on the negative voltage level. The LDO regulator is coupled to a load circuit, and the LDO regulator is configured to output a power supply voltage to the load circuit based on the reference voltage and an external negative voltage power supply.

The utility model discloses a surge protection circuit, a power supply circuit and electronic equipment, and the surge protection circuit comprises an energy storage circuit which is used for being coupled with a power supply input circuit and a load circuit so as to receive a power supply input signal provided by the power supply input circuit, and outputting a load power supply signal to the load circuit; the surge suppression circuit is coupled with the energy storage circuit; a bypass tank circuit coupled to the tank circuit and the surge suppression circuit; and the bypass switch circuit is coupled with the energy storage circuit, the surge suppression circuit and the bypass energy storage circuit, and the bypass switch circuit is configured to store energy for the bypass energy storage circuit by using the power input signal when the load power supply signal is lower than a first set threshold value so as to limit the load power supply signal within a second set threshold value. By means of the scheme, the surge protection circuit can effectively restrain the surge current from damaging related circuits, and effectively restrain the surge current from being generated when power input is interrupted for a short time and then recovered, so that it is guaranteed that a load circuit maintains normal work and operation.

The invention provides a charging and discharging balanced topological structure circuit, which comprises an input and output unit, a plurality of energy storage ports, an inductance element and a plurality of switching tubes, and is characterized in that the input and output unit comprises a first port and a second port and is used for being electrically connected with an external power supply or an external load circuit; the first port and the second port are configured to be a power input port or a power output port according to a preset control strategy; the plurality of energy storage ports are used for receiving the power supply transmitted by the first port or the second port and outputting the power supply to the first port or the second port; the inductance element is used for transferring a power supply transmitted by the first port or the second port to the energy storage port; and the plurality of switch tubes are used for selectively connecting the inductance elements among the first port, the second port and the plurality of energy storage ports under different conduction combinations to form a power supply transmission loop, so as to realize charge and discharge balance of the plurality of energy storage ports. According to the method, the safety can be effectively ensured, the balancing efficiency can be ensured, and the flexibility is improved.

The invention discloses a power factor correction control circuit and a household electrical appliance, and the circuit comprises a rectification module which is connected to an AC power supply; the switching device is electrically connected with the rectification module; the first end of the load circuit is connected to the first end of the switching device, and the second end of the load circuit is connected to the second end of the switching device; the controller is electrically connected with the control end of the switching device, and is configured to obtain the input voltage of the load circuit and the output current of the rectification module; according to the input voltage and a preset voltage reference value, a step-up rate is calculated; inputting the input voltage and the voltage reference value into a preset current compensation module, and calculating to obtain a current compensation value; and calculating a control signal of the switching device according to the boost rate, the output current and the current compensation value, so that the switching device executes conduction control according to the control signal. According to the technical scheme, the probability that high voltage generated by overshoot damages a switching device can be reduced.