10 results about "Switching signal" patented technology

The invention relates to an intelligent power supply device for a low-temperature etching-free iron plating process, which is characterized in that three-phase alternating current supplies power for a silicon controlled rectifying circuit; an input end of the silicon controlled rectifying circuit is connected with a signal output end of a pulse signal generator; an output end of the silicon controlled rectifying circuit is connected with low-temperature iron plating loads; and signal output ends of a synchronizing signal generator and a PLC (programmable logic controller) are respectively connected with a signal input end of the pulse signal generator. The invention also discloses a power supply method of the intelligent power supply device. Phase-shifting control signals generated by the PLC are used for controlling the pulse signal generator, thus adjusting AC (alternating-current) and DC (direct-current) amplitudes; and AC and DC switching signals generated by the PLC are used for mutually switching between AC output and DC output. The power supply device is used for setting output duration of DC signals and output duration of AC signals, can be controlled automatically without manual operations, and is strong in reliability of power supply and convenient to operate.

This invention discloses one BUCK drive circuit, which comprises the following parts: commuter tube to output switch power voltage from input end to voltage output end; commuter charge circuit to charge the commuter tube in control of PWM switch signals to make the BUCK drive circuit in commuter work status; the commuter discharge circuit is to make the drive circuit at back flow work status in discharge in control of PWM switch signals.

A multi-threshold CMOS system and method controls a state of respective blocks individually. Each block includes a logic circuit having a logic transistor and a control transistor connected between the logic circuit and a power line connected to one of a ground and a power source. The control transistor has a higher threshold than the logic transistor. The blocks are controlled by generating an individual block ON/OFF signal for each block, generating an individual control signal in response to the individual block ON/OFF signal, supplying the individual control signal to the control transistor and controlling voltage supply to the logic circuit within each block in accordance with the individual control signal.

The invention relates to a general high-low level configurable digital signal acquisition circuit for a vehicle control unit, which comprises a digital quantity switch acquisition module, the input end of the digital quantity switch acquisition module is connected with one side of a digital quantity switch, and the output end of the digital quantity switch acquisition module is connected with an MCU of the vehicle control unit; the digital quantity switch acquisition module is configured to be matched with a high effective level or a low effective level of the digital quantity switch, and the MCU acquires a digital quantity switch signal through the configured digital quantity switch. According to the invention, matching with a high effective level or a low effective level of a digital quantity switch can be realized, the universality of the vehicle control unit is improved, different resistors are selected for different signals, the hardware cost is reduced, and the expansibility of the controller is improved.

The invention discloses an auxiliary positioning system based on a four-wheel omnidirectional chassis. The system comprises a plurality of paths of gray sensors and a positioning controller, wherein the four multi-path gray level sensors are installed in four horizontal directions of a robot chassis, and the angle difference between every two adjacent multi-path gray level sensors is 90 degrees. A ground line track is recognized in an AD sampling mode, and an analog voltage signal or a switching signal is formed; the multi-channel gray sensor uploads collected analog voltage signals or switching signals to the positioning controller, an algorithm for processing the analog voltage signals or the switching signals is loaded in the positioning controller, and coordinate data deviation of the robot chassis relative to ground lines is obtained after processing of the processing algorithm.

Disclosed is an ultra-low-power power supply control system for permanent magnet vacuum circuit breakers. The control system belongs to the technical field of control systems of intelligent high voltage switches. A solar panel is connected with a power supply output circuit through a power supply input management circuit, the output end of the power supply output circuit is connected with a working power supply circuit and an operating power supply circuit, the output end of the working power supply circuit is connected with a protection and monitoring device, the output end of the operating power supply circuit is connected with an energy storage capacitor, the power supply output circuit is connected with the operating power supply controlling circuit, and the energy storage capacitor is connected with an input end of the operating power supply controlling circuit through a voltage collection circuit. The ultra-low-power supply control system further comprises a large power electric switching closing driving and controlling circuit, the input end of the large power electric switching closing driving and controlling circuit is connected with a switching signal inputting circuit and a closing signal inputting circuit, and the output end is respectively connected with the operating power supply controlling circuit and the large power electric switching closing driving and controlling circuit. Static power can be below 0.03 W, and power supply bootstrap of intelligent high voltage switches is achieved.

The invention discloses a dynamic capacity adjusting electric reactor for a filtering compensation device. The dynamic capacity adjusting electric reactor for the filtering compensation device comprises a main coil, an auxiliary coil, a switch device, an optical fiber and a controller, wherein the auxiliary coil is connected with the switch device; the switch device is connected with the controller through the optical fiber; the controller outputs corresponding switch signals to the switch device according to a target capacity value, which is required to be adjusted, of the electric reactor; and the switch device generates current which is required to be outputted by the filtering compensation device under the control of the switch signals and outputs the current to the auxiliary coil, so that the capacity of the electric reactor is adjusted. Because the target capacity value, which is required to be adjusted, of the electric reactor corresponds to the current which is required to be outputted by the filtering compensation device, and the current generated by the switch device can be adjusted in a stepless manner according to the corresponding switch signals outputted by the controller, the capacity of the electric reactor can be dynamically adjusted in a stepless manner. The dynamic capacity adjusting electric reactor is not limited by the number of taps; the adjusting precision is high; and a high filtering effect of the filtering compensation device can be achieved.