Power supply apparatus and method of controlling power supply circuit
US6194883A · kind A · utility
63Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 20, 2000 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Apr 20, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/157
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The DC output of a power conversion unit is controlled based on a pulse signal generated by a PWM unit. An operations unit detects an output current Iout, and determines the operation mode of a load based on the detected current value. When the output current Iout is weak, a value smaller than usual is written to a cycle register. The PWM unit generates a pulse signal according to the data stored in the cycle register and an on-time register.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.