Piezoelectric actuator driver circuit
作者： Gaku Kamitani , Toshinari Tabata
DOI:
关键词:
摘要: In a piezoelectric actuator driver circuit, resistor provided to detect current is inserted in path for actuator. A signal of decreased voltage the subjected positive feedback an amplifier circuit via band-pass filter. An output negative band-elimination The filter allows fundamental resonant frequency device, which includes actuator, pass therethrough, and blocks frequency. Thus, loop gain at higher-order with respect becomes very low mode can be effectively suppressed.
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