Switched-capacitor circuit having a full-wave-rectifying and integrating function
US5142236A · kind A · utility
91Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1990 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Oct 12, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B1/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A switched-capacitor circuit is described, which performs the functions of a full-wave rectifier and of an integrator and has a single operational amplifier and a comparator. The circuit is insensitive to the stray capacitances and offsets of the comparator and the operational amplifier. In particular, the input signal is sampled during only one phase of the clock which pilots the operation of the switched-capacitance network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.