Circuit for reducing negative glitches in voltage regulator
US9819332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2016 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Apr 10, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/153
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit that stabilizes an output signal of a voltage regulator includes a glitch amplifier, a pulse generator, and a transistor. The glitch amplifier amplifies glitches in the output signal and generates a glitch amplifier output signal. The pulse generator receives the glitch amplifier output signal and generates a control signal. When there is a positive glitch in the output signal and a voltage level of the glitch amplifier output signal is less than a first threshold voltage, the pulse generator deactivates the control signal, which turns off the transistor. When there is a negative glitch in the output signal and the voltage level of the glitch amplifier output signal is greater than a second threshold voltage, the pulse generator activates the control signal, which turns on the transistor and provides a compensating current surge to reduce a voltage droop in the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.