135 results about "Power entry module" patented technology

The invention relates to the technical field of air purification, and discloses a negative oxygen ion generator and a method thereof.The negative oxygen ion generator comprises an external shell used for providing installation positions for related parts; the power supply input module is mounted in the external shell, is internally provided with a filtering unit, and is used for receiving external direct current; the direct current and alternating current inversion module is electrically connected with the output end of the power supply input module, is internally provided with a switch assembly and is used for converting the direct current into high-frequency alternating current; a primary winding, a secondary winding and a feedback winding are arranged in the boosting transformer. A boosting transformer is arranged between a direct current and alternating current inversion module and a high-voltage double-voltage rectification module, so that the voltage is effectively boosted, more importantly, the magnetic field coupling characteristics of a primary winding and a secondary winding are utilized, reliable electrical isolation is constructed, and a physical path from a high-voltage side circuit to a low-voltage side circuit is blocked.

The utility model belongs to the technical field of pulse power supplies, and particularly discloses a pulse power supply circuit, which comprises a power supply input module, a PWM (Pulse Width Modulation) signal input module, a feedback control module, a control chip and an output module, the power input module provides working power for the control chip and the whole circuit. The PWM signal input module is used for transmitting an external PWM signal to a signal input pin of the control chip; the feedback control module collects an electric signal in the circuit and transmits a processed feedback signal to the control chip; the control chip drives the output module to output a pulse power supply to provide electric energy for a load based on an input PWM signal and a feedback signal. According to the utility model, the feedback signal acquired by the feedback control module is compared with the reference voltage, the difference value is amplified, the control chip adjusts the duty ratio of the PWM signal according to the amplified error signal, the pulse waveform is effectively optimized, and the output stability and reliability of the pulse power supply are improved.

The invention discloses an intelligent reactive power automatic compensation control device and method, and relates to the technical field of reactive power compensation of a power system. The device comprises a power supply input module, a sampling and signal conditioning module, a high-speed ADC module-block, an FPGA high-speed processing unit, a data storage module, an AI decision unit, a control driving module, a multi-channel capacitor switching device and a capacitor bank module. Through combination of the multi-channel capacitor switching device and an intelligent dynamic control technology, matrix-type accurate switching control of the capacitor bank is realized, the corresponding capacitor bank can be flexibly switched based on reactive power data dynamically acquired in real time, instant accurate compensation of reactive power capacity is achieved, and the reactive power capacity of the capacitor bank is accurately compensated. And the adaptability and the flexibility of compensation under different load working conditions are ensured.

The invention provides a time sequence control circuit and printing equipment. The time sequence control circuit comprises a power input module, a programmable control module, a low-voltage control module and a high-voltage driving module, the input end of the power input module is connected with a preset high-voltage power supply, the first output end is connected with the programmable control module, the first output end of the programmable control module is connected with the low-voltage control module, the power end of the low-voltage control module is connected with the power input module, and the output end is connected with the low-voltage power end of the nozzle. The second output end of the programmable control module is connected with the high-voltage driving module, the first power source end of the high-voltage driving module is connected with a preset high-voltage power source, the second power source end of the high-voltage driving module is connected with the power source input module, and the output end of the high-voltage driving module is connected with the high-voltage power source end of the spray head. And after a first preset duration is delayed, a high-voltage power-on control signal is output to the high-voltage driving module, so that low-voltage power-on and high-voltage power-on are sequentially carried out on the spray head.

The invention relates to a double-container heat storage type water heater circuit and a control method, and the circuit comprises the double-container heat storage type water heater circuit. The circuit comprises a power supply input module, a switch control module, a double-container switching module and a control module, wherein the switch control module comprises a first relay driving unit and a conduction buffer unit which form a parallel network, and a first end of the parallel network is connected with a power supply output end of the power supply input module; the second end of the parallel network is connected with the common end of the double-container switching module, the controlled end of the first relay driving unit is connected with the first signal output end of the control module, and the controlled end of the conduction buffer unit is connected with the second signal output end of the control module; when the first relay driving unit starts to switch the conducting state, the conducting buffer unit is controlled to conduct firstly, and then the first relay driving unit is controlled to switch the conducting state, so that the current transfer is smooth and no arc interference exists in the relay switching process, the switching reliability is improved, and the service life of the relay is prolonged.

The invention discloses a power supply module for a railway vehicle and a power supply system thereof. The power supply module comprises a multi-power input module, an intelligent switching module, a multi-mode rectifying and voltage-stabilizing module, an energy storage unit, a bidirectional DC / DC converter, a high-voltage direct-current bus, a traction inverter, an auxiliary inverter, a load output module and a comprehensive control module. Intelligent multi-source power supply in a real sense is realized by constructing a system architecture comprising a multi-power input module, an intelligent switching module and a comprehensive control module. The beneficial effect is that the power supply reliability and continuity are greatly improved. The system can monitor the state of each power supply in real time, automatically selects the optimal power supply or combination to supply power according to a preset strategy (such as priority, electric energy quality and cost), and seamlessly switches to the standby power supply when any power supply fails or is interrupted, so that the risk of downtime of the train auxiliary system due to the power supply problem is thoroughly avoided.

The utility model discloses a rotary needle shuttle synchronous double servo control system, which comprises a control unit, a communication module, a power supply input module, a switch power supply module and a voltage detection module, and is characterized in that the control unit is used for synchronously and accurately coordinating and controlling two servo motors, the communication module is used for data exchange, and the power supply input module is connected with the switch power supply module. The control module is used for receiving instructions and feeding back system states, the power supply input module is used for providing basic power input support adaptive to a wide voltage range, the switching power supply module is used for converting alternating current input into multi-path stable direct current output, and the voltage detection module is used for accurately monitoring input voltage states in real time. The problems that a traditional rotating needle shuttle system is poor in interference resistance, insufficient in power management and the like are effectively solved, the complexity of the system is remarkably reduced through the compact circuit layout and the modular design, and the system is suitable for equipment upgrading in the fields of spinning, packaging and the like and has certain use value and popularization value.

The invention discloses an unmanned aerial vehicle multi-channel power management system, and relates to the field of unmanned aerial vehicles. A power input module is used for connecting an unmanned aerial vehicle battery pack and realizing battery access protection; the battery state monitoring module is connected with the power supply input module and is used for acquiring SOC (state of charge), SOH (state of health), voltage and temperature parameters of the battery in real time; the multi-channel power distribution unit comprises at least two sensitive load channels, at least two power load channels and at least one task load channel which are respectively used for supplying power to an unmanned aerial vehicle flight control system, a sensor, a motor, an electronic speed controller and task equipment; according to the method, multiple parameters are fused through the Kalman filtering algorithm, the SOC detection precision error is smaller than or equal to 3%, compared with a traditional ampere-hour integral method (the error is 8-10%), the endurance prediction accuracy is improved by 60% or above, the battery state monitoring precision is remarkably improved, and the air crash risk caused by electric quantity misjudgment is effectively avoided.

The invention discloses a power supply time sequence control circuit for a PCIe board card, relates to the technical field of power supply time sequence control, and aims to solve the problems of strong temperature sensitivity, insufficient precision, poor anti-interference capability and the like of a traditional power supply time sequence control scheme based on resistors and capacitors. The power supply time sequence control circuit comprises a power supply input module, a plurality of VRM modules and a control module, the control module starts a power-on process by detecting the stability of the power supply input module, monitors the state of the turned-on power supply by using a GPIO interface, and controls the enabling of the next-stage power supply according to a preset time sequence after confirming that the upper-stage power supply is stable, so that the orderly power-on of the multi-stage power supply is realized, and meanwhile, the circuit can be integrated with an electronic switch to realize the automatic switching of 12V voltage. The method is suitable for various PCIe board cards with high requirements on the power supply time sequence precision and stability, can effectively guarantee the stable operation of the board cards, and improves the reliability and adaptability of the whole power supply management.

The utility model discloses a sound wave function management system, a connector and a data line, and the data line comprises a sound wave function management system, a PCB, a housing, a power input module, a power output module, a chip control module, a sound wave sound source module, an audio decoder module and an output power amplifier module, the chip control module is arranged between the power supply output module and the power supply output module; the sound wave sound source module is arranged on one side of the chip control module, one end of the sound wave sound source module is connected with the chip control module, and the other end of the sound wave sound source module is freely arranged; the audio decoder module is arranged on the other side of the chip control module, one end of the audio decoder module is connected with the chip control module, and the other end of the audio decoder module is freely arranged; and the output power amplifier module is connected with the audio decoder module, so that the structure is simple, and the use is convenient.

The invention discloses a current sharing circuit and a lamp. The circuit comprises a power supply input module, a load balancing circuit, a comparison feedback circuit, a first feedback circuit and a second feedback circuit, the power input module is used for generating driving current; the load balancing circuit is used for distributing the driving current into a first current and a second current; the first current acts in the first load, and the second current acts in the second load; the first feedback circuit feeds back a first voltage formed after the first current passes through the first load; the second feedback circuit feeds back a second voltage formed after the second current passes through the second load; the comparison feedback circuit is used for comparing the first voltage with the second voltage and transmitting a comparison result to the load balancing circuit; and the load balancing circuit adjusts the first current and the second current according to the comparison result so as to realize current-sharing distribution of the first current and the second current. According to the invention, the response speed is improved, and the hardware cost is reduced. The lamp is mainly used in the technical field of lighting lamps.

The application discloses a variable polarity seam welding power supply for device packaging and a welding quality monitoring method. The variable polarity seam welding power supply comprises a power main circuit module and a control system module. The power main circuit module comprises a power input module, a power conversion module, an energy storage capacitor group module, an H-bridge chopper module and an output module. The method comprises the following steps: turning on the variable polarity seam welding power supply to weld a device packaging workpiece, obtaining an average dynamic resistance sequence of the device packaging workpiece after welding, determining a Spearman correlation coefficient of the device packaging workpiece after welding based on the average dynamic resistance sequence of the device packaging workpiece after welding, and setting a threshold value of the Spearman correlation coefficient to determine the quality of the device packaging workpiece after welding. The application can improve the welding quality of the device packaging workpiece by precisely controlling the welding quality monitoring method software. The application can be widely applied to the technical field of device packaging welding.

The utility model discloses a DVD circuit device with an adjustable eye protection mode. The DVD circuit device comprises a power supply input module, a filtering module, a current adjustment master control module, a display control module and a protection module. In the DVD circuit device, the power supply input module is connected with the filtering module to provide a stable power supply for a subsequent circuit, and the filtered voltage is accessed to the core voltage conversion and current regulation module. The module interacts with the display control module according to feedback and adjustment functions of a chip, receives eye protection parameters set by a user according to environment and preference, realizes accurate adjustment of eye protection current, and further regulates and controls display brightness and color temperature. Meanwhile, the protection module is connected with the core voltage conversion and current regulation module, the output voltage is monitored, and protection is carried out in time when abnormity such as overvoltage occurs. The whole circuit is simple in design, elements are conventional and easy to integrate, existing equipment can be upgraded with low cost, reliability is effectively improved, service life is prolonged, and user trust is enhanced.

The utility model discloses a silage maize harvester knife grinder control system which comprises a cab, a whole vehicle controller is arranged in the cab, the whole vehicle controller comprises a power supply module, a driving module, a communication module and a signal collecting and processing module, the power supply module is connected with a knife grinder power supply input module, and the driving module is connected with a knife grinder power supply output module. And the signal acquisition and processing module is connected with a switch input signal module and a hydraulic signal input module. The knife shell is opened and closed in a manual mode and an automatic mode, the knife shell is driven by double motors, stable and synchronous operation of the knife shell is guaranteed, in addition, the manual mode and the automatic mode are adopted in the knife sharpening process, and use of workers is facilitated.

The application discloses a 48V EMB system with double-redundancy control and anti-reverse connection protection and relates to the field of vehicle braking, which alleviates the problems that the MCU cannot be reset, the motor brake is locked and the circuit is easily burnt when the battery is reversely connected in the existing 48V EMB system under abnormal conditions. The 48V EMB system comprises an MCU module, a motor pre-driving chip, an SBC module and a battery anti-reverse connection module; the SBC module is used for reset redundancy of the MCU module and motor pre-driving chip enable redundancy; the battery anti-reverse connection module is used for detecting a power supply connection, and when the power supply is forwardly connected, the power supply is controlled to form a loop, and otherwise the power supply loop is turned off. The application is suitable for a 48V mild hybrid drive-by-wire electronic mechanical brake caliper actuator, a 48V vehicle-mounted DC / DC converter power supply input module, a 48V electronic power steering controller power supply end and a 48V battery pack high-voltage power distribution box (PDU) / safety box power supply inlet.

The utility model discloses a fire-fighting emergency base station power supply, which comprises a switching control module, a main power supply input module and a standby power supply input module, each of the main power supply input module and the standby power supply input module comprises a double-MOS (Metal Oxide Semiconductor) tube; a first power supply input end of the switching control module is connected with a power supply output end of the main power supply input module, and a power supply input end of the main power supply input module is used for being connected with a first power supply; a first monitoring end of the switching control module is connected with a source electrode of the main power supply input module; a first control end of the switching control module is connected with a grid electrode of the main power supply input module; a second power supply input end of the switching control module is connected with a power supply output end of the standby power supply input module, and a power supply input end of the standby power supply input module is used for being connected with a second power supply; a second monitoring end of the switching control module is connected with a source electrode of the standby power supply input module; and a second control end of the switching control module is connected with a grid electrode of the standby power supply input module, so that efficient dual-power supply switching control is realized.

The utility model relates to the technical field of battery charging, and discloses a charger battery connection misjudgment prevention circuit, which comprises a power supply input module, a negative electrode control switch module, an output current detection module, a master control MCU (Microprogrammed Control Unit) module and a battery voltage detection module, the power input module is in signal connection with a negative electrode control switch module, the negative electrode control switch module is electrically connected with an output current detection module, the output current detection module is in bidirectional connection with a main control MCU module, and the main control MCU module is in signal connection with the negative electrode control switch module. And the main control MCU module is bidirectionally connected with a battery voltage detection module. According to the utility model, all the modules form a closed-loop control system through signal interaction, so that accurate control, state monitoring, fault protection and intelligent management of battery charging and discharging are realized, and stable and reliable operation of a circuit is guaranteed.

A power supply control circuit for a pet water dispenser is provided, wherein a charging management module is configured to output a charging current to a storage battery when a power input module supplies power, and control a charging current through a charging current signal output by a voltage division control module. A control terminal of a main control module controls the charging current signal output by the voltage division control module according to working states of the drive unit. The present invention has the advantages of preferentially guaranteeing the response speed of load power supply in the case where the battery is in a low-power state, dynamically adjusting the charging current to prevent system overload, improving the power adaptation capability in simultaneous charging and operation scenarios, and enhancing the charging stability when an external power source fluctuates.

The utility model discloses an electricity-to-heat temperature detection and control system and device. The electricity-to-heat temperature detection and control system comprises a micro-control unit (1), a power input module (2), a thermistor alloy heating body (3), a heating body resistance detection module (4), a PID module (5) and an electric power adjustment module (6). The power supply input module (2) is connected to the micro-control unit (1) and an external power supply, and the power supply input module (2) is used for converting and transmitting the voltage of the external power supply into the voltage available for the micro-control unit (1); according to the system and the device, continuous and comprehensive temperature detection of the whole heating process can be realized; based on the real-time temperature information, the system can automatically adjust the heating power to ensure the temperature uniformity of the whole heating system, so that the heating system can stably operate under different working conditions and can basically and continuously maintain a preset temperature value.

The invention relates to the technical field of robots, and discloses an intelligent ball picking robot which comprises a power input module, a ball picking module, a ball picking module and a ball picking module. The input module is used for detecting the type of a key input signal, generating a control signal in a remote control mode or an automatic mode, receiving a high-level pulse signal transmitted by the control module and triggering distance measurement; the control module module is used for receiving the control signal, analyzing and calculating the ideal speed of the three-wheel omnidirectional chassis of the intelligent ball picking robot, receiving the high level duration time transmitted by the input module module and calculating the actual distance of an obstacle; the driving chassis module is used for receiving the ideal speed, capturing an encoder signal transmitted by a motor encoder, executing a speed PID method, combining closed-loop PID speed regulation and generating an optimized pulse width modulation signal, so that the actual rotating speed of the motor tracks the ideal speed to control the movement direction of the intelligent ball picking robot; according to the invention, flexible movement and obstacle avoidance functions of small ball pickup are realized.

This invention relates to a power supply system for an electricity meter and its rechargeable battery protection circuit, belonging to the field of power protection technology. The invention integrates an anti-backflow unit within the step-down conversion module to prevent current from the rechargeable battery from flowing back into the power input module, thereby reducing capacitor ineffective losses. It also integrates a current-limiting unit and a first unidirectional conduction unit within the charging control module. The current-limiting unit restricts the charging current flowing to the rechargeable battery, while the first unidirectional conduction unit ensures that the charging current flows unidirectionally to the rechargeable battery. The current-limiting unit controls the charging current through its own resistance characteristics, avoiding damage to the battery from abnormal current (too high / too low). The first unidirectional conduction unit ensures that the charging current flows unidirectionally to the battery, preventing reverse current from flowing into the circuit during battery discharge, achieving a balance between "efficient charging + battery protection," thereby improving circuit reliability and battery lifespan.

The embodiment of the utility model provides a power management circuit and a satellite navigation signal receiving device. The power supply management circuit comprises a first battery, a second battery, a power supply input module, a first power supply management module, a second power supply management module, a power supply detection module and a power supply load module, and the power supply input module is connected in series with the first power supply management module, the second power supply management module and the power supply load module. The power detection module is connected with the power input module, the first power management module and the second power management module. The first power management module can select the battery with the high voltage to supply power to the circuit, the power detection module controls the second power management module to boost when the battery voltage is low, and circuit selection is carried out again. The battery power supply management circuit and the GNSS receiver are high in integration level and long in endurance time.

The utility model discloses a meteorological acquisition controller and a meteorological system with the same, and relates to the technical field of meteorological monitoring. The meteorological acquisition controller comprises a power supply input module, a data acquisition module and a power supply output module, wherein the power supply input module is configured to convert alternating current into direct current; the power output module is configured to supply power to the meteorological sensor; and the data acquisition module is configured to acquire a conversion signal transmitted by the meteorological sensor, cut off the connection between the power supply output module and the meteorological sensor when the communication has no response or the conversion signal is abnormal, and establish the connection between the power supply output module and the meteorological sensor after a preset duration. By adopting the meteorological acquisition controller, the meteorological sensor can be powered on or powered off, so that the abnormity recovery capability is improved.

The utility model discloses a multifunctional household intelligent comprehensive distribution box in the technical field of intelligent distribution boxes, which comprises a central control module and a power supply control electric quantity detection module which are electrically connected. The central control module is electrically connected with a sensor module, a display module, a 4G communication module and a power supply module, the power supply module is electrically connected with a standby power supply and a switch, the power supply control electric quantity detection module is electrically connected with an energy storage management module, and the energy storage management module is electrically connected with a power supply input module and a circuit breaker output module. The multifunctional household intelligent comprehensive distribution box is reasonable in structural design, the Internet of Things, the equipment state and the working mode can be remotely monitored and controlled, energy consumption can be recorded, summarized and analyzed, a user can conveniently optimize energy use and management modes, peak-valley energy storage and use management can be conveniently achieved by the user, peak-load energy use can be conveniently achieved by the user, and energy consumption can be conveniently achieved by the user. And the green and low-carbon energy consumption awareness of the user is improved.

The utility model relates to a quick charging circuit for mobile equipment. The mobile device fast charging circuit comprises a power supply input module and a charging module, the power supply input module comprises a current preprocessing unit and a voltage transformation unit, and the current preprocessing unit is electrically connected with the voltage transformation unit; the charging module comprises a fast charging chip U4 and a plug port, the fast charging chip U4 is electrically connected with the transformation unit, and the plug port is electrically connected with the fast charging chip U4. According to the scheme provided by the invention, the charging speed of the mobile equipment can be improved, so that the user experience is improved.

According to the clothes airing machine power supply system and the clothes airing machine, a power supply input module provides a power supply signal, so that a motor control module outputs a working voltage signal to a main control module according to the power supply signal, and outputs a first power supply signal to a motor of the clothes airing machine based on the power supply signal and a motor control signal output by the main control module; the main control module is used for supplying power to the motor through the first power supply signal and outputting an illumination control signal and a motor control signal based on the working voltage signal, so that the illumination control module outputs a second power supply signal to an illumination load of the clothes airing machine according to the power supply signal and the illumination control signal output by the main control module; therefore, the illumination load of the clothes airing machine and the power supply of the motor are independently controlled, the power supply efficiency of the clothes airing machine can be effectively improved, and the problem that the power supply efficiency is low due to the fact that the motor and the illumination load of the clothes airing machine share one power supply in the prior art is solved.

The utility model provides a machine-room-less elevator control cabinet, and belongs to the technical field of elevator control cabinets. The machine-room-less elevator control cabinet comprises a shell assembly, a door body assembly and a door body assembly, a containing cavity is formed in the shell assembly, and the shell assembly comprises a front cover plate capable of being opened; the cross beam is fixedly arranged in the containing cavity and arranged in the transverse direction of the shell, the two ends of the cross beam are fixedly connected with the two sides of the containing cavity respectively, the side, close to the front cover plate, of the cross beam is used for installing a power input module, and the two sides, in the thickness direction, of the cross beam are used for leading out two circuits of the power input module respectively; and the trunking structure is arranged in the accommodating cavity, is positioned on one side, used for leading out the two lines of the installation control circuit, of the cross beam, and is used for accommodating at least one line of the power supply input module. The control cabinet of the elevator without the machine room is orderly and clear in wiring, convenient to check wires and capable of avoiding magnetic field interference.

The present invention discloses a rectifier circuit and device for an energy-saving lighting lamp. The circuit includes: a power input module, a rectifier module and a power output module; the rectifier module includes a first rectifier drive module, a second rectifier drive module, a third rectifier drive module and a fourth rectifier drive module; the first rectifier drive module and the fourth rectifier drive module are used to form a half-wave rectifier voltage with positive upper side and negative lower side; the second rectifier drive module and the third rectifier drive module are used to form another half-wave rectifier voltage with positive upper side and negative lower side; the first rectifier drive module includes a first PMOS tube, the second rectifier drive module includes a second PMOS tube, the third rectifier drive module includes a first NMOS tube, and the fourth rectifier drive module includes a second NMOS tube; the present invention can achieve an equal voltage effect at the power input and output ends, improve the rectification efficiency, reduce power loss and electric energy waste; realize a non-polarity wiring method, and facilitate on-site construction wiring of lamps.

The invention discloses a high-voltage dynamic balance driving system and method. The system comprises a power input module and a plurality of dynamic balance output modules. And the dynamic balance output module balances the output module, the buffer and temperature compensation module and the protection and isolation module. The plurality of dynamic balance output modules output constant voltage with superposed voltage values; and each dynamic balance output module is used for receiving the input voltage of the power supply input module, realizing voltage following, and dynamically adjusting and outputting according to the connected load. The balance output module comprises a main power device and an on-resistor (R5) connected with the main power device; and the balance output module is used for receiving and comparing the fluctuation error of the input voltage, amplifying the error and adjusting the conduction state of the main power device according to the amplified error so as to compensate the output fluctuation of the constant voltage output by the main power device. The system provided by the invention solves the problems that modular combined voltage output cannot be realized, and dynamic adjustment cannot be carried out by self-adaption to load impedance change.

The invention discloses an electrical system of a magnetic suspension air compressor. The electrical system comprises a three-phase power supply input module, an anti-interference protection module, a high-voltage power supply protection module, a low-voltage dual-power supply module and a fault detection response module, the output end of the three-phase power supply input module is respectively connected with a surge protector and an EMC filter in the anti-interference protection module; the output of the EMC filter is connected with an input reactor, a protection assembly and a phase failure protector in the high-voltage power supply protection module, the input reactor is connected with a frequency converter, the frequency converter is connected with a magnetic suspension motor through an output reactor, and the protection assembly is connected with a high-voltage auxiliary component; a direct-current bus of the frequency converter is connected with the magnetic suspension bearing controller and the DCDC switching power supply, the DCDC outputs two paths of low-voltage electricity to the integral control unit and the low-voltage execution part respectively, and the signal ends of the phase failure protector and the protection assembly are both connected with the integral control unit. Therefore, the defects of electric design of the magnetic suspension air compressor in anti-interference, fault protection and detection and power supply reliability are overcome, and the magnetic suspension air compressor is suitable for industrial severe working conditions.