Piezoelectric transformation driving apparatus
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United States of America Patent
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Sep 13, 2005
Grant Date -
May 20, 2004
app pub date -
Nov 18, 2002
filing date -
Nov 18, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A piezoelectric transformation driving apparatus for driving elements or products to be driven by a high or a low voltage includes a driving module consisting of a pulse-width modulation (PWM) control unit and a single driving unit. The driving module outputs driving signals of the same phase and the same frequency to drive a plurality of transformation units, a plurality of piezoelectric units and a plurality of loads.
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