Apparatus for calculating amplitude values

Details Apparatus for calculating amplitude values Apparatus for calculating amplitude values

H - Electricity

03

K

354/147

H03K 5/22 (2006.01) G01R 19/04 (2006.01)

Patent

CA 1080363

Abstract of the Disclosure The amplitude value of a sinusoidal wave is calculated by operating means which processes absolute values of two data samples which are sampled from the sinusoidal wave at two points spaced 90° electrical degrees apart thereby producing an electrical signal proportional to the amplitude value. The operation means comprises a comparator, a combination of an adder and a subtractor, or a combination of a comparator and an adder. The output of the comparator or the combination is multiplied with a predetermined co- efficient and then added together to produce said signal. ' ', .' .

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