Droplet spray generation device

Details Droplet spray generation device Droplet spray generation device

2011-07-12

2011-07-12

Rosenau, Derek J (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

07977849

ABSTRACT:
An electronic drive system for a droplet spray generation device has a droplet generator with a perforate membrane driven by a piezoelectric transducer. An electronic circuit controls a power supply to control the charging of a capacitor to supply a drive signal to the piezoelectric transducer. The electronic circuit is arranged to control the operation of the power amplifier at substantially its resonant frequency.

REFERENCES:
patent: 4767959 (1988-08-01), Sakakibara et al.
patent: 7550897 (2009-06-01), Hailes

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