ABSTRACT
Objective To design an electrostimulator for cerebellar fastigial nucleus stimulus, which is controlled with singlechip system and using EEG(Electroencephalogram)to modulate amplitude of the carrier wave. Methods The EEG with instrumentation amplifier of high CMRR (Common Mode Rejection Ratio) and some filters are collected. The electric insulation is achieved by using linear optocouplers on the parts of input and output. Results The stimulator can solve the problem of adaptability for wave to simulate the body, and is safe, non -invasive, and of obvious therapy for ischemic cerebrovascular disease. Conclusion The cerebellar fastigial nucleus stimulus can cure ischemic cerebrovascular disease obviously, and the modulation with EEG can solve the problem of adaptability for wave to simulate the body.