Circuit with adjustable release time
US5301369A · kind A · utility
1Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1992 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Apr 3, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/46
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A circuit (100) is provided which includes a forward charging switch (FET MN2) having an input terminal (102), an output terminal 112 and a plurality of current sink elements (FETs MN1 and MN3). The plurality of current sink elements (MN1 and MN3) are selectable via a control switch circuit (114) which is responsive to a control signal at the control switch input terminal (104). Preferably, one of the current sinks is always selected in order for some small amount of current to be discharged from output terminal 112 which is coupled to a capacitor (C1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.