Low voltage dropout circuit with compensating capacitance circuitry
US5563501A · kind A · utility
75Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1995 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Jun 2, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/565
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An improved low voltage dropout regulation circuit is provided. The internal compensating capacitance coupled to the regulated output port is coupled to a virtual ground and the virtual ground is current buffered for coupling to the control electrode of the path element. For additional frequency compensation, particularly when the path element has a large capacitance, an additional internal compensating capacitance is coupled between the input of the dropout circuit and an output of a transconductance amplifier, which is responsive to the voltage at the regulated output port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.