Feedback control circuit and method thereof
US9712057B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2016 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Jul 21, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed are a feedback control circuit and a method thereof. The feedback control circuit includes a voltage comparator, a calibration voltage generator and processor. The voltage comparator receives a middle-point voltage and a calibration voltage, compares the middle-point voltage and calibration voltage, and outputs a reference voltage pulse signal. The calibration voltage generator generates the calibration voltage and outputs it to a switch driving circuit and the voltage comparator. The processor compares the pulse widths of the reference voltage pulse signal and a predetermined voltage pulse signal, and accordingly outputs a control signal to the calibration voltage generator to fine tune the calibration voltage. The switch driving circuit outputs a switch driving signal to a switching regulating circuit to adjust the timing when to turn on or off switches in the switching regulating circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.