Method and system for gain boosting in linear regulators
US9323266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2014 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Sep 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and a system for increasing the open loop gain of linear regulators are presented. A linear regulator to derive an output voltage from an input voltage is described. The linear regulator contains an amplifier to derive an amplifier output signal from an amplifier input signal, and a pass device to convert the amplifier output signal into the output voltage. The linear regulator has a positive feedback loop using a positive feedback gain γ, and a negative feedback loop using a negative feedback gain β. In addition, the linear regulator has a combining unit to determine the amplifier input signal from the input voltage, from the positive feedback signal and from the negative feedback voltage. A transfer function of the linear regulator exhibits a first and a second pole at a first frequency wp1 and at a second frequency wp2, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.