Full-wave rectifying circuit having only one differential pair circuit with a function for combining a pair of half-wave rectified currents into a full-wave rectified current
US5721507A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | May 14, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D1/18
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a full-wave rectifying circuit comprising a differential amplifier (20) differentially amplifies an input alternating current signal (V.sub.IN) to produce first and second amplified output voltages (V.sub.O1, V.sub.O2) and a voltage reference circuit (30) for generating a reference voltage (V.sub.REF), a differential pair circuit (40) carries out half-wave rectification on the first and the second amplified output voltages on the basis of the reference voltage to obtain first and second half-wave rectified currents (I.sub.C3, I.sub.C4). The differential pair circuit (40) includes a combining part (44) for combining the first and the second half-wave rectified currents into a full-wave rectified current (I.sub.RO). The full-wave rectifying circuit may further comprise a current/voltage converting section (50) for converting the full-wave rectified current into a full-wave rectified voltage (V.sub.RO).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.