Active load circuits
US4105945A · kind A · utility
8Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1977 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Mar 16, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/28
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An active load circuit is interconnected between a signal source such as a pickup cartridge and an amplifier which acts as an impedance matching resistor. An equivalent resistance provided by the amplifier as viewed from the signal source equals a required resistance for impedance matching, and the noise voltage is considerably reduced as compared with that produced by a conventional matching resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.