Switching power supply packages
US6434021B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2000 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Nov 15, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Various three, four and five terminal power supply control packages for controlling delivery of power from a source to a load in both single and dual switch transformer coupled power converters are disclosed. By way of example, a three-terminal control package has a first terminal for coupling to a primary winding of a transformer, a second terminal for coupling to a ground reference and a third terminal for coupling to a source of operating power. An internal power switch has an input coupled to the first terminal, an output coupled to the second terminal, and an activation gate. The package includes pulse train control circuitry coupled to the power switch activation gate and responsive to an error signal for driving the power switch, the error signal derived from an internally generated compensation signal corresponding to an expected voltage loss between the source and the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.