Research of Multi-output WEDM Pulse Power Supply Based on FPGA
For self-developed multi-station synchronous WEDM, a multi-output pulsed power supply was re-searched. The principle of the pulsed power supply is the same as the principles of the single output pulse power, the main structure of the full-bridge topology DC main circuit output plus four independent branch chopper. By FPGA as the controller sends a pulse signal to control the PWM modulation output voltage magnitude, frequency and duty cycle. Ensure a consistent pulse signal of each branch, so the same parameters as the electrical output of each end. Collection for each output circuit voltage and current signals, after internal processing by FPGA output feedback signal for each branch protection. When one of one or more channels fails, the other circuit continues to work to ensure efficiency. Designed based on interactive touch-screen system, make the operation more convenient and simple power supply.
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