The intensity of coloring membrance the corrosion resistance and the wear-resisting performance effected by differert power source wave and fluid in gradient were also studied.

Study on cyanide-free alkaline copper plating by using a two-stage switching power supply for intermittent electroplating;

Design of control circuit of IGBT induction heating/brazing power supply;

Design of HSPECM power supply control system;

Current adjustment of air plasma cutting welding power source;

Optimization Design of Power Supply for Gold Electrolysis and Its Application;

Operating Principle of XDQ-Ⅱ Power Phase Series and Phase Interception Protector and Its Troubleshooting;

High precision 0-10kV electrical source has been developed and it can produce needed poling voltage.

It introduced that the latest developments in ultrasonic cleaning,ultrasonic transducer,ultrasonic electrical source,ultrasonic detergent,liquor processing.

The designs of excitation current detecting circuit,armature current detecting circuit,the serial communication between the PC and the DSP and the electrical source circuit are discussed.

This paper describes the use of GTR in an air plasma cut supply and analysesthe turning-on and off processes of the GTR.

A high voltage supply module applied to IGCT performance test is designed.

Compared with the traditional SCR phase-shifted regulated power supply, using new type of power semiconductor, non-crystalline state magnetic material and pulse width modulation technology, ample power switching supply has many advantages: small volume, high converting efficiency, good dynamic performance, small harmonic component and small pollution to AC supply.

Application of EPOQ-II optimizing operation software system in the retrofit of ESP power source;

AC PMIG arc welding power source and arc length control;

Reliability of UPS and control system power source;