Switched capacitor ripple-smoothing filter
US7224213B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | May 7, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/093
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switched-capacitor ripple-smoothing filter includes a first pair of capacitors. The filter is configured such that either capacitor in the first pair may be reset and have a terminal coupled to a first input port and such that the remaining capacitor in the first pair is isolated from the first input port and has the terminal coupled to a first output port while the other capacitor is being charged. The filter further includes a second pair of capacitors, the filter being configured such that either capacitor in the second pair may be reset and have a terminal coupled to a second input port and such that the remaining capacitor in the second pair is isolated from the second input port and has the terminal coupled to a second output port while the other capacitor in the second pair is being charged. Advantageously, the filter is configured such that the capacitors in the first and second pair are reset responsive to the assertion of a single reset signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.