6results about How to "Reduce input current" patented technology

The application relates to a power supply multiple working mode automatic switching controller and a car, a power supply module one is configured to receive a power input signal and output a power supply signal one; an MCU microcontroller is configured to enter a standby state in response to the power supply signal one, listen to a wake-up signal, and send a SOC state switching signal based on a listening result; a power supply module two is configured to receive a power input signal and output a power supply signal two, and switch between a PFM mode and a PWM mode according to a level high-low result of the listening result obtained through a MODE pin; and a SOC circuit is configured to enter a standby state in response to the power supply signal two and switch between a sleep state and a normal working state according to the SOC state switching signal. The application can solve the problem that a power supply chip can only run in a single mode and cannot be switched in the related art.

The invention discloses a GaN power tube-based low-voltage input high-power isolated power supply, which comprises a first-stage circuit and a second-stage circuit, the first-stage circuit and the second-stage circuit both adopt a GaN power tube as a main power switch in a circuit, the first-stage circuit and the second-stage circuit are connected in series, and the input end of the first-stage circuit is used as the input end of the high-power isolated power supply; the output end of the second-stage circuit is used as the output end of the high-power isolation power supply; the first-stage circuit is used for boosting an input low-voltage direct-current voltage through an interleaved parallel BOOST circuit to obtain a boosted voltage; and the second-stage circuit is used for converting the boosted voltage into a voltage required by a load by adopting an asymmetric half-bridge flyback AHB topology and then outputting the voltage, and isolating the input boosted voltage from the output voltage required by the load through a power transformer. The switching power supply provided by the invention can meet the requirements of low-voltage input, high-power output, input and output voltage isolation, high efficiency, low temperature rise and high integration.

The application provides a kind of pneumatic gas butterfly valve tightness test system, including gas generating device, import side pneumatic butterfly valve, gas heating device, export side pneumatic butterfly valve and waste gas treatment device;The gas generating device is connected by first pneumatic tee valve and main gas pipeline, and the waste gas treatment device is connected by second pneumatic tee valve and main gas pipeline;It also includes temperature sensor and first gas pressure sensor arranged at the gas outlet side of gas heating device, second gas pressure sensor installed at the air outlet of export side pneumatic butterfly valve and first smoke sensor installed on export side pneumatic butterfly valve.The beneficial effect: the test system generates gas by gas generating device, secondary heating and pressure regulating method to meet the strict test requirements.Test gas can be recycled multiple times by gas heating device and cooling device for multiple variable tests, reducing test cost and improving gas utilization rate.

The application provides a kind of pneumatic gas butterfly valve radial seal test system and test method, including gas generating device, switch valve, gas heating device, first test butterfly valve and waste gas treatment device;The first test butterfly valve is connected with main gas pipeline, and the opening and closing or opening size of main gas pipeline is controlled by the butterfly plate rotatable along the valve shaft, the butterfly plate is three eccentric structure, further including the flange fixedly connected with valve body by being buckled on the outside of butterfly plate, and the gap between the flange and butterfly plate is provided with valve seat.Affirmative effect: the test system generates gas by gas generating device, secondary heating and pressure regulating method to meet the strict test requirements.Test gas can be recycled multiple times by gas heating device and cooling device for multiple variable tests, reducing test cost and improving gas utilization rate.

The utility model discloses a double-rotor permanent magnet servo driving motor, which comprises a motor body, a driving shaft is arranged in the motor body, a plurality of rotor parts are arranged outside the driving shaft, a stator iron core is arranged on the outer side of each rotor part, and the plurality of rotor parts share one stator iron core. The air gap magnetic flux of at least one rotor component is adjustable. In the invention, the air gap magnetic flux of the rotor component can be adjusted, the size of the air gap magnetic flux can be controlled by externally adjusting the size of the exciting current, the air gap magnetic flux density can be improved when low-speed large torque is required, the overload capacity is improved, the input current can be reduced in the high-speed stage of the motor, and even the reverse current can be introduced; therefore, the air-gap flux is reduced, the air-gap flux density is reduced, and the purpose of high-speed rotation of the motor can be achieved.

This utility model discloses an energy-saving motor, including a motor housing, rotor, stator, winding assembly, and insulating frame. The rotor and stator are disposed within the inner cavity of the motor housing, the insulating frame is mounted on the stator, and the winding assembly is wound around the insulating frame. The stator has 12 stator slots, which are trapezoidal slots. This utility model reduces the input current, resulting in reduced power consumption and heat generation under the same operating conditions and time. The measured efficiency (EFF%) of the motor is improved, indicating reduced energy consumption and a more energy-efficient effect. Furthermore, this utility model reduces the amount of silicon steel sheets and copper wire used, simplifying the manufacturing process.