Foshan arrest Wei Hydraulic Machinery Manufacturing Co., Ltd., product performance and use: the working process of the switching power supply is quite easy to understand, linear power supply, the power transistors operating in the linear mode, linear power PWM switching power supply power transistors operate in the conduction and the off state, these two states, the the volts - Engel product is applied to the power transistor a small (when turned, low voltage, high current; off the voltage is high, the current is small) / power device voltammetry product is generated on the power semiconductor device loss. The sales Miss Mo: 13927792326