H - Electricity – 03 – F
Patent
H - Electricity
03
F
330/103
H03F 1/34 (2006.01) G06G 7/12 (2006.01) H03F 1/56 (2006.01)
Patent
CA 1177913
PHN 9794 _ 10 - 25.11.1980 Abstract Amplifier arrangement with very low distortion. An amplifier arrangement, comprising an amplifier (1) having an inverting input (2), a non-inverting input (4), and an output (3), a first impedance (5), included between the output (3) and the inver- ting input (2), and a second impedance (77, included between an input terminal (6) of the amplifier arrangement and the inverting input (2). Between the inverting and the non-inverting input of the amplifier (1) there is included an impedance network (8), the impedance value of said impedance network (8) at least substantially corresponding to the impedance value of the parallel connection of the first and the second impedance but with opposite sign. In this way an amplifier arrangement is obtained whose gain, regardless of the value of the gain of the amplifier (1), corresponds to the ratio of the impedance values of said first and second impe- dances, so that an amplifier arrangement with a very low distortion can be realized.
381078
Fetherstonhaugh & Co.
N.v. Philips Gloeilampenfabrieken
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