CPLD控制的便携式电疗仪的刺激器设计

Design of the Stimulator for a Portable Electrotherapeutical Instrument Controlled by CPLD

介绍了一种便携式电疗仪的刺激器的设计方法。利用CPLD芯片实现刺激器的主要硬件电路的设计,通过对CPLD芯片编程实现刺激波形的产生、刺激频率、脉宽和幅度的数字式可调。该方法简化了电路,提高了系统的实时处理能力和可扩展性。经仿真和电路测试证明,刺激器输出波形准确可靠,能很好满足各项性能要求。

A way based on CPLD was proposed to devise the stimulator for a portable electrotherapeutical instrument, which implements the occurrence of stimulating wave and the digital adjusting for stimulating frequency, pulse-width and amplitude. For the use of CPLD, circuit is simplified and expansibility is enhanced. Therefore the ability of real-time processing is also improved. Through simulation and circuit test, the output wave is accurate and tried, which can achieves the required aims well.