Circuit system for discharging a buffer capacitor used for supplying high voltage to a control unit, in particular a control unit for actuating a piezoelectric output stage
US6982517B2 · kind B2 · utility
38Cited by
13References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 21, 2002 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | Apr 25, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/802
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit system for discharging a buffer capacitor, in particular for supplying high voltage to a piezoelectric output stage inside a control unit. Electronic switching elements are provided to discharge (but not to recharge) the buffer capacitor after the control unit is isolated from the piezoelectric element or after the control unit is switched off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.