Charge pump operating voltage range control using dynamic biasing
US8917126B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2013 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Dec 23, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system is disclosed, which may include a differential charge pump. The differential charge pump may include a first and a second H-bridge circuit, each driving, on a respective output, an output current that is substantially similar over an output voltage operating range. The differential charge pump may be designed to receive increment, decrement and bias signals, and drive, in response to the increment and decrement signals, the output current to draw each H-bridge circuit output towards a first or a second supply voltage. The differential charge pump may also be designed to increase, in response to the bias signals, the output voltage operating range over which the output current is substantially similar. The differential charge pump may also include a bias signal generator, designed to generate bias signals in response to H-bridge circuit output voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.