Active load circuits

Details Active load circuits Active load circuits

1977-03-16

1978-08-08

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including signal feedback means

330107, H03F 134

Patent

active

041059450

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.

REFERENCES:
patent: 3736517 (1973-05-01), Lim
patent: 3763382 (1973-10-01), Hurichi et al.
Jenkins, "Active Filter Has Separate Band and Frequency Controls," Electronics, Sep. 11, 1972, p. 110.

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