Switching power source circuit for independent per cycle control of ON/OFF time ratio
US7072191B2 · kind B2 · utility
51Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2004 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Oct 26, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching power supply circuit, which can respond to a rapid and large change in a load quickly and stably and ensure a power supply output having a predetermined voltage, is provided. In the power supply circuit which supplies an input current to a load while switching the input current periodically and controls an output voltage Vo supplied to the load to a predetermined target value by controlling an ON/OFF time ratio (t1/t2) of the switching variably, a control of the ON/OFF time ratio is performed for every one current supply cycle T independently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.