G - Physics – 06 – F
Patent
G - Physics
06
F
354/192
G06F 7/52 (2006.01) H03D 7/14 (2006.01) H03G 3/30 (2006.01)
Patent
CA 1165004
PHN 9627 16 ABSTRACT: Multiplying circuit comprising a pair of trans- istors including first and second transistors arranged in long-tailed pair configuration having a collector output and interconnected emitter electrodes which are coupled to a first current source, also comprising a bias voltage adjusting circuit applying an equal base bias voltage to the base electrodes of the pair of transistors, these base electrodes being connected to a signal input, a con- trol of the amplitude of the output signal then taking place. To this end the multiplying circuit comprises a control distribution circuit including a shunting transis- tor whose collector-emitter path is DC connected in paral- lel to those of the first-mentioned transistors, as well as a control circuit for applying a control voltage between the base electrode of the shunting transistor and that of the pair of transistors.
365102
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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