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High-voltage amplifier circuit diagram for piezoelectric cer

2015-01-05 00:38  
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High-voltage amplifier circuit diagram for piezoelectric ceramic element
Figure 1 shows the high-voltage amplifier for piezoelectric ceramic element. Piezoelectric ceramic element is an excellent location converter, which is widely used in micrometer and so on. Piezoelectric ceramic element has the maximum elongation in 2OkV / magnitude electric field with typical value in 0.1%, so here needs to use high-voltage amplifier. This is a simple, low-cost 1000V high-voltage amplifier. Piezoelectric ceramic element is used as the amplifier load. High-voltage amplifier consists of three high-voltage MOSFET (BUK465) and a low-noise operational amplifier (0P27) and so on.