G - Physics – 11 – B
Patent
G - Physics
11
B
352/23, 342/29
G11B 21/02 (2006.01) B06B 1/06 (2006.01) G11B 5/56 (2006.01) G11B 5/592 (2006.01) G11B 7/09 (2006.01) G11B 21/10 (2006.01) H01L 41/04 (2006.01)
Patent
CA 1132230
23.11.78 1 PHN 9135 ABSTRACT: Device for the application of a control voltage across a piezo electric positioning element. A device for the application of a control voltage across a piezo-electric positioning element In order to enable a high voltage to be applied across the piezo-electric element without using a comparatively high supply voltage, use is made of the capacitance of such an element as integrating element. The device com- prises a charge source and switches for transferring charge pulses to and from the piezo-electric element on command of control pulses.
328298
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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