Piezoelectric transducing inverter

Details Piezoelectric transducing inverter Piezoelectric transducing inverter

1999-01-06

2000-05-02

Nguyen, Matthew

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

060576316

ABSTRACT:
A piezoelectric transducing inverter which drives a piezoelectric transducer in high efficiency and is widely used in general and small sized and low cost and is capable of preventing the generation of smoke etc. is provided. Signals outputted from a frequency divider are inputted to the gates of two switching transistors respectively and a piezoelectric transducer is driven. At the piezoelectric transducing inverter from which a transduced voltage is outputted, at the time when the abnormal state that the electric connection between the frequency divider and either gate of the two switching transistors is lost occurs, by biasing the switching transistor, a current flows to a fuse and blows the fuse and prevents the generation of smoke etc. from the switching transistors caused by flowing a large current.

REFERENCES:
patent: 5739622 (1998-04-01), Zaitsu
patent: 5894184 (1999-04-01), Furuhashi et al.

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