Switching adapter control method for adaptive mobile power systems
US8629670B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2011 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jan 30, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching adapter control method for adaptive mobile power systems is composed of reference current generator, current mode error compensator, controllable constant turn-off timer, PWM generator and MOSFET driver. The output of the switching adapter can show constant current and voltage characteristics, that means, as the DC bus voltage is over a preset voltage, the adaptor's output characteristic is converted from a constant current source into a constant voltage source with the preset voltage. For low output capacitance case, the present invention has the ability to smoothly reduce the switching frequency of the switching adaptor and reduce the switching losses and meet Energy Star 2.0 requirements under different load conditions. And the output ripple current and voltage can be in the allowed range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.