DC-DC converter
US6621257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2002 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Jun 7, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a stable, highly efficient DC-DC converter that uses &Dgr;&Sgr; modulation capable of limiting excessive peak current flowing inside the converter by monitoring the current flowing inside the converter with an integrator located inside the &Dgr;&Sgr; modulator. A highly efficient &Dgr;&Sgr; modulation type of DC-DC converter can be provided capable of stable control without requiring a detection resistor by composing the &Dgr;&Sgr; modulator with an adder, integrator, quantizer and attenuator, providing an AND circuit that limits the on period of the output signal of a power switching element, and limiting the excessive peak current flowing within the converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.