文档介绍：Design of the double polar pulse power for plating
Yu Yadong, Ruan Xieyong and Pan Zhangxin
Department of physics and electronic information
Shaoxin University
Shaoxin, Zhejiang Province, China
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Abstract –The double polar pulse digital power source was winding of transformer. Voltage of secondary winding of
designed for plating. dsPIC30F3011 acted as MCU for producing transformer will be adjusted with the change of duty ratio of
PWM pulse in the design. M57962L was used to drive IGBT. So IGBT. The secondary winding of transformer is divided into
as to isolate controller from main loop of power by two groups. One of them provides positive pulse for the load
opticalcoupler, LM331 was used to process conversion of A/D. through D1 and D2. And another provides negative pulse for
Arithmetic of PI was adopted to control output voltage and
current. The tryout proved the controller has good stability and the load through D3 and D4. The frequency and duty ratio of
it can output double pole pulse whose frequency is adjustable the pulse are controlled by the PWM signal provided by
from 10HZ to 10KHZ. MCU.
Index Terms - doub