Low drop-out switching regulator architecture
US5705919A · kind A · utility
74Cited by
6References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Sep 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/618
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Circuits and methods are provided for low drop-out operation of switching regulator circuits that include a switching transistor and an output circuit adapted to supply current at a regulated voltage to a load. The circuits and methods generate a limiting signal that allows the switching transistor to remain in a continuous conductive state for a predetermined number of oscillator cycles. The predetermined number of oscillator cycles is preferably set by a counter that initiates a signal that turns the switching transistor OFF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.