Patent · US Expired

Method and configuration for driving a capacitive actuator

US6271618A · kind A · utility

12Cited by

18References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Christian Hoffmann · Leonberg, DE
Hellmut Freudenberg · Bad Abbach, DE
Hartmut Gerken · Nittendorf, DE

Key dates

Filing date	Sep 30, 1999
Grant date	Aug 7, 2001
Priority date	—
Expiry date	Sep 30, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH10N30/802
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a driving configuration for driving an actuator, component tolerances are compensated for by measuring a discharging current flowing in a measuring branch and the discharging voltage during a charge-transfer (reversing) operation. The measuring branch contains a series resonance circuit having a charging capacitor, a coil, an auxiliary switch and a measuring resistor. The current and voltage values measured at various instants are evaluated; and from them, initial parameters are determined for the subsequent driving operations.

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