Feedback control circuit and power management module shortening feedback response time
US10141840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2016 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Dec 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/625
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a feedback control circuit and a power management module, wherein the feedback control circuit includes a sample analysis circuit, a comparison circuit and a switch control circuit, and the sample analysis circuit samples an output signal of the power management chip, and analyzes a variation trend of the output signal to obtain a first output signal; the comparison circuit compares the first output signal and a reference signal to obtain a second output signal; the switch control circuit comprises a Pulse Width Modulation PWM control circuit and a switch, wherein the PWM control circuit is coupled to the comparison circuit and the switch control circuit, and the switch is coupled to the power management chip, and the switch control signal adjusts a duty ratio of the switch according to the second output signal to adjust a compensation duration of the output signal of the power management chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.