摘要
根据电火花涂敷加工工艺的特点,设计了基于16位微型计算机80C196KC控制的脉冲电火花电源的控制电路。控制电路中,通过(PWM)脉宽调制实现主电路的电压调节,设计了MAX705的电源监控及看门狗电路、NMI的保护电路以及基于MAX7219的实时显示模块电路。最后,设计了多种抗干扰措施,提高了电源系统工作的稳定性。经测试,设计的控制电路满足电火花涂敷电参数的需求。
According to the characteristics of the technology of EDM coating processing, this paper designed a pulse control system for the EDM coating power which based on 16-bit microcomputer- 80C196KC. In the control system, the voltage regulation was realized through the PWM, power monitoring and watch-dog circuit were designed based on MAX705, the protection circuit was based on NMI and the real-time display module circuit was based on MAX7219. Finally, Variety of anti-jamming measures were used to improve the stability of power supply system. Tests show that, the designed control system meet with the requirement of EDM coating electric parameters.
出处
《电加工与模具》
2010年第2期16-19,23,共5页
Electromachining & Mould
