1386 results about "Load circuit" patented technology

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 that is necessary to continue the autonomous driving mode; and a first circuit connection / disconnection mechanism provided on a power supply line for electrically connecting the first load and the second load, the first circuit connection / disconnection mechanism that electrically connects or disconnects the first load circuit to or from the second load circuit. The first load circuit is located on an upstream side of the first circuit connection / disconnection mechanism. A current path on a downstream side of the first circuit connection / disconnection mechanism includes a first path for allowing a current flowing from the first load circuit to the first circuit connection / disconnection mechanism to flow from a branch point located on the downstream side of the first circuit connection / disconnection mechanism to the second load, and a second path for allowing the current to flow from the branch point to the additional battery. A current value allowed for conduction through the first path is higher than a current value allowed for conduction through the second path. The second load circuit includes the second load and a third load that is not necessary for traveling in the autonomous driving mode. The third load is connected to the second path between the branch point and the additional battery.

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 present disclosure provides a digital low-dropout regulator (DLDO) and an electronic device using the same. The DLDO includes a voltage comparator circuit, a switch control circuit, a power switch module, and an asynchronous clock generation circuit. The voltage comparator circuit compares a reference voltage with the output voltage to output a comparison result signal. The switch control circuit generates a switch control signal based on the comparison result signal. The power switch module is controlled by the switch control signal to switch between the on state and the off state, thereby adjusting the output voltage. The asynchronous clock generation circuit generates a reference clock signal that is asynchronous with the system clock signal used in the load circuit and has a higher clock frequency. This allows the switch control circuit to update the switch control signal based on the reference clock signal.

The invention discloses an equalization circuit and a continuous time linear equalizer. The equalization circuit comprises an input stage circuit, a feedback control circuit, a source degeneration circuit and a load circuit, the input stage circuit is in coupling connection with the feedback control circuit, when an input signal of the signal input end is low-frequency, the feedback control circuit is cut off, and the signal is amplified by the first transistor; when the frequency of the received signal is increased, the feedback control circuit is switched on, and the signal is amplified by the first transistor and the second transistor; when the input signal is high frequency, the source degeneration circuit generates a source degeneration effect related to the frequency; the load circuit is composed of a feedback loop and used for decoupling load parasitism and input stage circuit parasitism. The amplifier is also used for receiving control voltage and providing gain for the equalization circuit; the control voltage is used to regulate the gain effect provided by the load circuit. According to the invention, a multi-segment equalization function of the equalizer can be realized, and the equalizer is suitable for attenuation of different channels and compensates for attenuation of signals by different attenuation mechanisms.

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.

A multi-voltage power management integrated circuit (PMIC) is disclosed. More specifically, the multi-voltage generation circuit includes multiple voltage modulation circuits each configured to generate and maintain a respective one of multiple modulated voltages based on a battery voltage and a respective one of multiple reference voltages. Contrary to using multiple voltage-current modulation circuits, such as direct-current-direct-current (DC-DC) converters, to generate the multiple reference voltages, the multi-voltage PMIC is configured to share a single voltage-current modulation circuit among the multiple voltage modulation circuits. As such, the multi-voltage PMIC can concurrently support multiple load circuits (e.g., power amplifier circuits) with a significantly reduced footprint.

A power supply system is installed in a vehicle. The power supply system includes a first load circuit configured to operate using electric power from a main battery, the first load circuit being connected to a first load; a second load circuit configured to operate using electric power from the main battery or an additional battery, the second load circuit being connected to a second load; a first relay provided on a power supply line for electrically connecting the first load and the second load, the first relay that electrically connects or disconnects the first load circuit to or from the second load circuit; a second relay that electrically connects or disconnects the second load to or from the additional battery; and a controller that determines a state of a start switch for starting the vehicle. The first relay is in an on state when the start switch is off. The second relay is in an off state when the start switch is off. When determining that the start switch has been switched from off to on, the controller is configured to turn on the second relay and then turn off the first relay. A failure diagnosis for the first relay is performed with the first relay being off and the second relay being on.

A power controller comprises a control loop configured to control timing of pulsed signals that activate phases of a coupled inductor voltage regulator based on current demand of a load circuit and comprises a transient detection circuit configured to determine a projected current through a compensation inductor of the coupled inductor voltage regulator based on a state of the phases and operating parameters of the coupled inductor voltage regulator. The transient detection circuit is configured to detect a transient in the current demand of the load circuit based on a variability in phase-to-phase overlap of the pulsed signals. Responsive to detecting the transient, the transient detection circuit is configured to apply a correction to the control loop that alters the timing of the pulsed signals based on the projected current through the compensation inductor.

The invention discloses a board card test load circuit and equipment, and the circuit comprises a regulation and sampling module, a synchronous switch module, a feedback comparison module, a first instrument amplification module, a second instrument amplification module, and a microprocessor. A first four-pin sampling resistor and a second four-pin sampling resistor are configured on a large-current branch, the measurement precision can be improved, a microprocessor controls synchronous switching of a single-path switch unit and a multi-path gating switch unit through a synchronous control unit of a synchronous switch module in measurement so as to adapt to large-current and small-current test application scenes, and the measurement precision is improved. The microprocessor performs signal acquisition through the first instrument amplification module and the second instrument amplification module to realize feedback adjustment, and adjusts control signals of the current regulation and control unit and the synchronous control unit according to error calibration data stored in the storage module and detection data from the DMM module. Precise control of the load pulling current is realized, and the test precision is improved.

Techniques for providing low-cost and effective jammer rejection for an amplifier is disclosed. The amplifier includes an input node and an output node, a first transistor and a second transistor, a load circuitry, an inductor, and a capacitor. A first terminal of the first transistor is coupled to a ground. A second terminal of the first transistor is coupled to a first terminal of the second transistor. A second terminal of the second transistor is coupled to the output node. The load circuitry is coupled between a power supply and the second terminal of the second transistor. A first terminal of the inductor is coupled to the ground through a first switch. A first terminal of the capacitor is coupled to the first terminal of the second transistor and a second terminal of the capacitor is coupled to a second terminal of the inductor.

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 utility model provides a heating control circuit and an electric two-wheeled vehicle. The heating control circuit comprises a pulse self-heating circuit and a first one-way conduction module. The first end of the pulse self-heating circuit is connected with the first pole of the battery module, the second end of the pulse self-heating circuit is connected with the second pole of the battery module, and the pulse self-heating circuit is used for enabling battery electric energy flowing out of the battery module to reversely flow to the battery module to form pulse current repeatedly entering and exiting the battery module; the input end of the first one-way conduction module is connected with the first end of the pulse self-heating circuit and the first pole of the battery module, and the output end of the first one-way conduction module is used for being connected with the first end of the load circuit; and the first one-way conduction module is used for allowing the pulse self-heating circuit to reversely flow battery electric energy to the capacitive load current and preventing the electric energy of the capacitive load current from flowing to the pulse self-heating circuit, so that the influence of the load circuit on the pulse self-heating circuit is reduced, the loss of the pulse self-heating circuit is reduced, and the heating efficiency of the pulse self-heating circuit is improved.

Techniques and assemblies for enhanced circuit board layouts and circuit configurations are presented. In one example, an apparatus includes a circuit board having a power plane configured to carry electrical current from a power supply circuit to load circuitry. The power plane comprises a fence region that establishes an increased characteristic impedance of the power plane and has vias arrayed across the power plane which perforate the power plane and electrically couple to a ground plane of the circuit board. A filter is established at the fence region by at least capacitance elements electrically coupled between the power plane and the ground plane, the filter configured to route at least a portion of noise carried by the power plane to the ground plane at the fence region.

The invention discloses a data center load dynamic control device and method, which can help to improve energy utilization efficiency and reduce operation cost while ensuring normal operation of key equipment of a data center through real-time monitoring and dynamic adjustment of power supply of a non-main load loop, and can improve the reliability of the data center by introducing a dynamic voltage compensation element. The main load loop can be timely and effectively compensated when faced with voltage fluctuation, so that stable operation of load equipment is guaranteed, equipment failure and data loss caused by voltage fluctuation are avoided, the main controller carries out rapid calculation and decision according to the real-time current value, and the real-time current value can be accurately calculated. And the state of the power electronic static switch is rapidly adjusted through the switch control circuit, such a high-speed response mechanism enables the system to rapidly adapt to load changes, the flexibility and reliability of the whole data center are improved, the device can dynamically distribute power based on real-time data, and the reliability of the data center is improved. The intelligent power distribution strategy helps to improve the overall operation efficiency of the data center.

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 provides a voltage stabilizing circuit and a memory, the voltage stabilizing circuit comprises a first operational amplifier circuit and a second operational amplifier circuit, the first operational amplifier circuit is connected with the second operational amplifier circuit, an enabling module is arranged on a path of the second operational amplifier circuit, and the enabling module is used for enabling the first operational amplifier circuit to be in a non-enabling mode when the voltage stabilizing circuit is in a non-enabling mode. Controlling an access of the second operational amplifier circuit to be in an off state according to the control signal; the first operational amplifier circuit comprises an input circuit and a load circuit, and the input circuit is connected with the load circuit; the first operational amplifier circuit is used for controlling an input transistor in the input circuit and a load transistor in the load circuit to be in a turn-off state in a non-enabling mode, and a first voltage at the joint of the input circuit and the load circuit meets a preset voltage range; therefore, the number of transistors in the voltage stabilizing circuit can be reduced while the breakdown risk of the input transistor is avoided, and the purposes of reducing current loss and saving area are achieved.

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.