Amplifying circuit with DC voltage feedback to base terminal for

Details Amplifying circuit with DC voltage feedback to base terminal for Amplifying circuit with DC voltage feedback to base terminal for

1996-07-10

1997-12-23

Young, W. R.

Amplifiers

With semiconductor amplifying device

Including d.c. feedback bias control for stabilization

330299, 330310, 360 68, H03F 130

Patent

active

057011036

ABSTRACT:
A DC feed-back circuit for causing a DC voltage of an external transistor in which an output bias current of a record amplifier flows to be equal to a DC voltage of an output terminal is provided so as to decrease power consumption. Thus, a plurality of record amplifying circuits can be incorporated into one IC chip. In particular, in home-use Hi-Fi VCRs, a Hi-Fi record amplifying circuit and video record amplifying circuits can be incorporated into one chip.

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