Advanced feed forward switch mode power suppply control
US4835454A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Dec 15, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved DC to DC conveter is disclosed which is highly stable and has a highly regulated ouptut voltage. A pulse width modulator drives a switch for interrupting the flow of current through an inductor. A combination of feed forward and feedback control of the pulse width modulator is provided with the majority of control being provided by the feed forward component. The pulse width of the pulses from the width modulator is directly proportional to the feed forward and feedback components of the pulse duration control signal. Preferably, approximately 75%-90% of the pulse duration control signal is provided by the feed forward component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.