Control circuit and method for a power converter controlling adaptive voltage position
US8421429B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2010 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Jul 23, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit and method for controlling a power converter comprises an adder, a digital compensator, and a pulse width modulation circuit. The adder acquires an output voltage difference between the output voltage and the reference output voltage. The digital compensator, which has a Z-domain transfer function, references the output voltage difference to generate a pulse width control signal with the least significant bits of the denominator coefficient in the Z-domain transfer function being regulated to achieve the load line function of the power converter. Further, the pulse modulation circuit is controlled by the pulse width control signal to generate the pulse width modulation signal to control ON/OFF of the power converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.