Millicrosecond grade micro-energy impulsing power source based on FPGA

• Main Authors: ZHAO WANSHENG, GU LIN, KANG XIAOMING, JIANG YI
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2010
• Subjects: MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL; TRANSPORTING; WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL

The invention relates to an FPGA based nanosecond micro-energy pulse power source belonging to the field of non traditional machining. The invention has the technical scheme that pulse signals generated by the FPGA are isolated by an opto-coupler and then are outputted into a power tube driver module, and the power tube driver module generates driving signals used for driving a charge-discharge loop module; the output voltage of the charge-discharge loop module is loaded on the electrodes of an electric spark machine tool and workpieces, the output part of the charge-discharge loop module is weakened to be connected to the FPGA by a comparator and an A/D converter module, discharge condition information gained through FPGA processing is outputted into a host computer, the output end of the FPGA is connected to a display and alarm module to display the current pulse width and the pulse interval, and a pulse width input module is connected to the FPGA to be used as an input part for regulating the pulse width;