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Piezoresistor protection transistor circuit

2016-05-09 04:57  
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Piezoresistor protection transistor circuit
As shown in Figure a, it uses non-linear relationship of the piezoresistor to achieve the protectionfor the transistor. In Figure b, c, due to induced over-voltage suppression is below the specified value, C ~ E poles will not exceed the specified threshold voltage,so itcan play a protective role of the transistor.