Device comprising a piezoelectric transducer

Details Device comprising a piezoelectric transducer Device comprising a piezoelectric transducer

1993-01-26

1994-11-01

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310317, H01L 4108

Patent

active

053610130

ABSTRACT:
The device comprises a piezoelectric transducer, a primary battery, and a circuit which applies a control voltage to the transducer or which short-circuits the latter depending on the state of a control signal. The control voltage is produced by a voltage increasing circuit comprising a coil, a diode and a capacitor constituted by the transducer, that are connected in series, in that order, across the terminals of the primary battery, and an oscillator responsive to the control signal to control a transistor in such a manner that it either alternately produces and cancels a short circuit across the terminals of the circuit formed by the diode and the transducer or is permanently blocked. A second transistor is also responsive to the control signal to short-circuit the transducer when the first transistor is blocked. The device is simpler, cheaper and consumes less electrical power than known devices.

REFERENCES:
patent: 4161670 (1979-07-01), Kern
patent: 4732129 (1988-03-01), Takigawa et al.
patent: 4767959 (1988-08-01), Sakakibara et al.
patent: 4947074 (1990-08-01), Suzuki
patent: 5036263 (1991-07-01), Yamada et al.
patent: 5053668 (1991-10-01), Mitsuyasu
patent: 5057734 (1991-10-01), Tsuzuki et al.
patent: 5204576 (1993-04-01), Mitsuyasu
patent: 5208505 (1993-05-01), Mitsuyasu

Affiliated with

Also associated with

Rating

Device comprising a piezoelectric transducer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device comprising a piezoelectric transducer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device comprising a piezoelectric transducer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1804302