Circuit system for the generation of a direct control voltage dependent upon an alternating voltage
US4322636A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1979 |
| Grant date | Mar 30, 1982 |
| Priority date | — |
| Expiry date | Jul 11, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K4/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit for generating a direct control voltage dependent on an alternating voltage, particularly for the generation of a direct control voltage in a system for dynamic compression and expansion, including a storage capacitor for providing the control voltage, at least one electronically controllable charging circuit and at least one electronically controllable discharging circuit connected to the storage capacitor, a comparator for comparing an alternating voltage input signal with a reference value, first and second control circuit paths for connecting the output of the comparator to the control inputs of the charging circuit and the discharging circuit respectively, a time-delay circuit connected in one of the control circuit paths, and an inverter connected in one of the control circuit paths so that the output signals from the two control circuit paths are inverted with respect to one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.