Switching power supply control
US7595617B2 · kind B2 · utility
10Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2005 |
| Grant date | Sep 29, 2009 |
| Priority date | — |
| Expiry date | Sep 1, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1563
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching power supply controller includes a comparator to compare a feedback signal to a first limit and a second limit, one of which includes a ramp. Limit generators may be used to generate limit signals in response to power supply signals, control signals, and/or output signals. An error amplifier may be used to generate the feedback signal in response to an output signal and an input control signal. A switching power supply may alternatively include an oscillator that shifts the switching frequency in response to the input control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.