CONVERTER FOR TIME VARYING SQUARE WAVE TO AVERAGE VALUE IN REAL TIME

A real-time mean conversion device is provided to output a real-time mean conversion value of a time-variable square wave by generating control signals on periods of each switching frequency with a divided clock. A comparator(100) outputs a compared result signal after comparing a time-variable squa...

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Bibliographic Details
Main Authors LEE, JONG MOO, KIM, HONG JU, KIM, CHOON KYEONG, PARK, MIN KOOK, KIM, SEOG JOO, CHEON, JONG MIN, KWON, JOON MAN
Format Patent
LanguageEnglish
Published 09.06.2009
Subjects
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRICITY
PULSE TECHNIQUE
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Summary:A real-time mean conversion device is provided to output a real-time mean conversion value of a time-variable square wave by generating control signals on periods of each switching frequency with a divided clock. A comparator(100) outputs a compared result signal after comparing a time-variable square wave with a reference voltage. A programmable logic device(120) generates a first control signal through a ninth control signal, and performs a counting operation by a reference clock. An analog/digital converter(130) converts a time-variable input square wave voltage. A multiplier(140) outputs an analog signal after multiplying a data value and an accumulation result according to a counting operation. A first sample-and-hold circuit(150) samples and holds the analog signal. An operation amplifier adder(160) adds the sample-and-hold signal to an output of the multiplier outputted in a positive and negative edge. A second sample-and-hold circuit(170) samples and holds the output signal of the operation amplifier adder based on a positive edge of a comparing result signal, and outputs a real-time mean signal of the time-variable square wave.
Bibliography:Application Number: KR20070124953