Stackable multi-phase power stage controller with current matching
US11294411B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2020 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Nov 17, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power stage controller includes: a multi-phase pulse control circuit; a current sense circuit; a comparator; an error amplifier; and a mode controller. The mode controller includes a mode controller input and a summation circuit. The summation circuit has a first summation circuit input, a second summation circuit input and a summation circuit output, the first summation circuit input is coupled to the error amplifier output, and the summation circuit output is coupled to the first comparator input. The mode controller is configured to: select one of a main controller mode or a secondary controller mode responsive to a mode control voltage at the mode controller input; bypass the summation circuit responsive to selection of the main controller mode; and enable the summation circuit responsive to selection of the secondary controller mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.