Double-edge PWM controller and its control method thereof
US7880522B2 · kind B2 · utility
2Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2009 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Jul 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K7/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a double-edge pulse width modulation (PWM) controller based on the output current and output voltage which is modulated in real time by the output current and the output voltage. The controller uses an extra first adder to sum up the compensation signal and a triangular signal (or a saw-tooth signal); a second adder to sum up the output current signal to a bias value; a PWM comparator, with its non-inverting input receiving the output of said first adder, its inverting input receiving the output of said second adder and outputs the PWM signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.