Strong arm comparator
US10601322B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 2019 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Apr 4, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A buck converter is disclosed that may operate in a low power mode or a high power mode based on a power requirements of a load. In the high power mode, modifications to increase frequency response include a higher polling frequency for a comparator, a lower impedance divider in a feedback circuit, a higher biasing current for a comparator, and larger switches for providing current to a reactive step-down circuit of the buck converter. In the low power mode these modifications are reversed. The buck converter may make use of an improved strong arm comparator and a circuit for sensing presence of an inductor in the reactive step-down circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.