Patent · US Expired

Device and method for driving at least one capacitive actuator

US6016040A · kind A · utility

26Cited by

3References

13Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Christian Hoffmann · Leonberg, DE
Hellmut Freudenberg · Bad Abbach, DE
Hartmut Gerken · Nittendorf, DE
Martin Hecker · Laimerstadt, DE
Richard Pirkl · Regensburg, DE

Key dates

Filing date	Feb 16, 1999
Grant date	Jan 18, 2000
Priority date	—
Expiry date	Feb 16, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH02N2/067
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A device for driving at least one capacitive actuator contains a charge capacitor C1 and a discharge capacitor C2. According to the method, the actuator is charged with a desired voltage U.sub.s by the capacitors C1+C2 connected in series, and is then discharged into the discharge capacitor C2. The charge capacitor is then recharged to a voltage U.sub.C1 =U.sub.s -U.sub.C2 by a voltage source which can be regulated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.