Digital pulse-width modulator based on non-symmetric self-oscillating circuit
US7710174B2 · kind B2 · utility
8Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2008 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Nov 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low-power digital pulse-width modulator (DPWM) architecture for high frequency dc-dc switch-mode power supplies (SMPS) is disclosed that is well-suited for integration in power management systems of small handheld devices. The DPWM can operate in a stand-alone mode, without external clock, and can be implemented on a portion of silicon area needed for other DPWM solutions. In addition it has low power consumption and provides a good linearity of the input-to-output characteristic, also not characteristic for other architectures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.