Charge pump control circuit and control method thereof
US7486128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2006 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Oct 10, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump control circuit and a control method for controlling charge pumps are disclosed. The output terminal of the charge pump is coupled to a load circuit. The charge pump control circuit includes a detecting and controlling circuit and a controlled oscillator. The detecting and controlling circuit is used to detect the load status of the load circuit and output a control signal according to the load status. The controlled oscillator receives the control signal and outputs at least one clock signal. According to the control signal to control a frequency of the clock signal, the charge pump control circuit controls the charge pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.