Peak detection circuit

Details Peak detection circuit Peak detection circuit

H - Electricity

03

H

H03H 11/00 (2006.01) G01R 19/04 (2006.01) G11B 20/24 (2006.01) H03K 5/1532 (2006.01)

Patent

CA 2068634

The provision of a peak detection circuit which can accurately detect peaks even if a noise component is included in the input signal. A peak detection circuit, comprising: a differentiating circuit which produces a differentiated signal of an input signal, a peak hold circuit which produces a peak value envelope of an output of said differentiating circuit, a first comparator which compares an output of said differentiating circuit and a reference signal formed on the basis of an output of said peak hold circuit, and detects when said input signal falls below said reference signal, a second comparator which detects a portion which detects a portion which exceeds an output of said differentiating circuit, and a flip-flop for producing a signal which rises in accordance with an output of said second comparator and falls in accordance with an output of said first comparator thereby to form a signal representing a peak by the rise of an output of said flip-flop.

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