Load dependent discharge for voltage controlled oscillator-based charge pump regulator
US12028078B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2022 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Aug 31, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/0375
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A pulse generator circuit includes a charge pump having a charge pump output. A voltage divider is coupled to the charge pump output. The voltage divider has a voltage divider output. An error amplifier has a first error amplifier input and a second error amplifier input. The first error amplifier input is coupled to the voltage divider output. A dependent current source circuit has a first input coupled to the charge pump output, a second input coupled to the voltage divider output, and a third input coupled to the second error amplifier input. The dependent current source is configured to cause a current to flow from the charge pump output that is proportional to a difference between a first voltage at the voltage divider output and a second voltage at the second error amplifier input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.