Apparatus and methods for multi-mode charge pumps
US10680516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2019 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Oct 16, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for multi-mode charge pumps are disclosed herein. In certain configurations, a multi-mode charge pump includes an output terminal, a mode control circuit that operates the multi-mode charge pump in a selected mode, a first switched capacitor, a capacitor charging circuit, and a plurality of switches. The capacitor charging circuit connects a first end of the first switched capacitor to a charging voltage in a first phase of a clock signal, and connects the first end of the first switched capacitor to a reference voltage in a second phase of the clock signal. The charging voltage has a voltage level that changes based on the selected mode. The plurality of switches connect a second end of the first switched capacitor to the reference voltage in the first phase, and connect the second end of the first switched capacitor to the output terminal in the second phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.