Analog amplifier clipping circuit

Details Analog amplifier clipping circuit Analog amplifier clipping circuit

1999-10-07

2000-07-04

Pascal, Robert

Amplifiers

Sum and difference amplifiers

330 86, 327309, H03F 345

Patent

active

060844671

ABSTRACT:
An analog clipping circuit includes: a main amplifier 20; a feedback resistor 26 coupled between a first input of the main amplifier 20 and an output of the main amplifier 20; a first current source 50 coupled in parallel with the feedback resistor 26; a first clipping amplifier 42 coupled to the first current source 50 for controlling the first current source 50, the first clipping amplifier 42 having a first input coupled to an output of the main amplifier 20 and a second input coupled to a first reference node; a second current source 54 coupled in parallel with the feedback resistor 26; and a second clipping amplifier 44 coupled to the second current source 54 for controlling the second current source 54, the second clipping amplifier 44 having a first input coupled to an output of the main amplifier 20 and a second input coupled to a reference node.

REFERENCES:
patent: 4070632 (1978-01-01), Tuttle
patent: 4849708 (1989-07-01), Brehmer et al.
patent: 5175508 (1992-12-01), Gingrich et al.
patent: 5412346 (1995-05-01), Burger, Jr. et al.
patent: 5952883 (1999-08-01), Masuta

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