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The full-wave rectification circuit with the absolute value of the idealized
diode

Published:2011-8-7 2:46:00 Author:Sophia | Keyword: The
full-wave rectification circuit, idealized diode, absolute value |
From:SeekIC

Figure
1 is the absolute value circuit of the amplifier OP often mentioned on a good
textbook, that is full-wave rectifier circuit. Circuit is constituted of
half-wave rectifier circuit A1 and the addition circuit A2(for the subtraction
operation when the sign is oppositive ) with OP amplifiers ideal diode.In this
circuit when the input is positive half cycle, diode D1 turns on, the circuit
will output the negative half-wave rectified wave. This signal adds input signal
(R2 = 0.5R1 is necessary), which get a positive output. When the input is
negative, diode D2 is not conducting, and inverting amplifier composed of the
resistance R1, R3 begans to move.

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