High gain, current mode preamplifier
US4386378A · kind A · utility
5Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1981 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | Jan 23, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/187
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high gain, current mode preamplifier for magnetic media recording and reproduction wherein a differential amplifier has its non-inverting input connected to the circuit ground through a first resistance, its inverting input is connected to the circuit ground through a second resistance, and its output is connected to the inverting input through a third resistance, and with the magnetic head being selectively connected in parallel with the third resistance during recording and across the amplifier input terminals during playback.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.