Multi-phase DC-DC power converter
US8816657B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2012 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Jun 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1586
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multi-phase DC-DC power converter including a pulse width modulation (PWM) controller and a plurality of output stage circuits is provided. The output stage circuits convert an input voltage into an output voltage. The PWM controller includes a PWM generation module, a ramp generator and a feedback circuit. The feedback circuit generates a trigger signal according to the output voltage and a ramp signal. The PWM generation module generates a PWM signal with a constant on time, and adjusts a duty cycle of the PWM signal according to the trigger signal, the input and output voltages, so as to control phase channels of the multi-phase DC-DC power converter in order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.