Synchronous PWM switching regulator system
US6430070B1 · kind B1 · utility
32Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2001 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | May 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A synchronous pulse width modulation (PWM) switching regulator that is suitable for high-performance CPUs. A DAC converts a plurality of inputted digital signal into analog signal that indicates the desired voltage. A circuit creates the necessary PWM signal to control a pair of drivers and their associated switches to convert a first inputted voltage to a second desired voltage. A soft-start circuit ensures that the startup voltage does not overshoot an expected level. Over-current and over-voltage protection circuits ensure that the circuit will not damage any circuits that power is supplied to.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.