Circuit for the automatic control of the off-load voltage of a load, and differential comparator including this automatic control circuit
US5034696A · kind A · utility
1Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1989 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Dec 6, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/303
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is an automatic control circuit for a device comprising at least one transistor mounted as a current source. To achieve the automatic control of its mean off-load voltage at a given level, this circuit includes an automatic control of the voltage Vgs of said transistor by a follower-shifter circuit; wherein the control of the shift voltage of the follower circuit is accomplished by the charge from a capacitor, wherein the capacitor is charged, in a calibrating step, by shifter circuit looped to the capacitor, through a switch control by a clock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.