Zero generator for voltage regulators
US7659703B1 · kind B1 · utility
2Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2005 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Nov 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A circuit for providing an improved “feed forward” zero in a feedback loop such that the zero has a frequency dependent on the transconductance (gm) of a common gate transistor, and pole and zero separation that is dependent on a multiple of the gm. The circuit includes an error amplifier and a compensation circuit. The compensation circuit provides a first feedback current and a second feedback current. The error amplifier receives a reference signal and a feedback signal. The feedback signal is provided by summing the first feedback current and the second feedback current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.