Apparatus and methods for low voltage high PSRR systems
US9484809B2 · kind B2 · utility
5Cited by
6References
19Claims
0Family size
Inventor
Key dates
| Filing date | Jun 19, 2015 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Jun 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided herein are apparatus and methods for low voltage high power supply rejection ratio (PSRR) systems. A charge pump converts a supply voltage to a larger charge pump voltage and provides the charge pump voltage to a circuit subsystem. The charge pump voltage is regulated to a state dependent reference. In the steady state the charge pump voltage is regulated with respect to an output voltage of the circuit subsystem; in this way PSRR of the circuit subsystem is enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.