Soft-start system and method for power converter
US7719243B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2007 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Oct 28, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method for soft-start in a power converter includes the following: providing a feedback signal indicative of the output voltage of the power system at a first input terminal of an error amplifier in a negative feedback loop of the power converter; providing a reference voltage at a second input terminal of the error amplifier; comparing the feedback signal against the reference voltage to generate a control signal for regulating an output voltage of the power converter; charging a soft-start capacitor coupled to the second input terminal of the error amplifier with a current for establishing the reference voltage; and adjusting the current in response to the control signal so that the error amplifier is prevented from saturation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.