Linear power conversion circuit
US6798273B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Oct 10, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D2200/0043
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to a conversion circuit to convert a differential power signal II[1], II[2] into a differential output current IC[1], IC[2], said circuit including conversion means CONV and regulation means REG for the input impedance of the circuit connected to the conversion means CONV. The regulation means REG according to the invention include negative feedback means to control a regulating current IREG taken from each component of the power signal II[1], II[2] as a function of the values of the potentials V[1], V[2] at the inputs of the conversion circuit. The half-sum between the two potentials V[1], V[2] at the inputs of the circuit is advantageously used to guide the negative feedback which can advantageously be applied to the bases of the regulation transistors controlling the value of the regulating current.The invention permits mixers of great precision to be produced and can be used in any signal processing apparatus using power conversion circuits and, in particular, mixers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.