Linear regulator with charge pump
US6710585B2 · kind B2 · utility
6Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Sep 11, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/185
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage-regulating circuit uses a combination of a longitudinal regulator circuit with a switched charge-pumping circuit. The longitudinal regulator circuit contains a transistor, a first resistor, and a zener diode. The charge-pumping circuit has a second resistor, a capacitor and a switched voltage source lying in series between the output potential of the voltage-regulating circuit and a chassis ground potential. The anode of a diode is connected to a point between the second resistor and the capacitor, while the cathode of the diode is connected to the controlling signal input of the transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.