Cot converter with controlled frequency and associated method
US8917073B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2012 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Jan 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1563
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A SMPS having a switch; an output port coupled to a load, configured to provide a voltage feedback signal and a current feedback signal; an on-time generator, having an input end coupled to the current feedback signal, and having an output end providing a time signal indicating a time period; and a PWM generator, having a first input end coupled to the voltage feedback signal, a second input end coupled to the time signal, and an output end providing a PWM signal that is coupled to the control end of the switch, and wherein the PWM signal is configured to turn ON the switch when the voltage feedback signal is lower than a threshold voltage, and the PWM signal is configured to turn OFF the switch after the time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.