Voltage regulator circuitry for regulating an output voltage to a load to avoid irreversible product damage
US10775818B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2019 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Jan 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/468
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Voltage regulator circuitry, comprising: a pull-up path connected between a high-voltage supply and an output node for supplying a pull-up current from the high-voltage supply to the output node; a pull-down path connected between the output node and a low-voltage supply for drawing a pull-down current from the output node to the low-voltage supply; and a controller comprising pull-up control circuitry operable to control the pull-up current and pull-down control circuitry operable to control the pull-down current, so as to regulate an output voltage signal provided at the output node at a target voltage level even when an output current drawn from the output node along an output current path by a load varies over a range of positive and negative values, wherein the pull-down control circuitry is operable to: obtain measures of the pull-up current; and control the pull-down current based on the measures using at least one of proportional, integral and derivative control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.