SATURATION CIRCUIT

SATURATION CIRCUIT

PURPOSE:To vary freely the control value of an output, by comparing the output of an operational amplifier with the variable control value. CONSTITUTION:When output voltage VO5 is lower than the control voltage VX of a variable power supply 10, an operational amplifier 13 compares both voltages with...

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Hauptverfasser: SAKURAI TOSHIYUKI, KOTANI FUMIO
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
ELECTRICITY
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creator SAKURAI TOSHIYUKI
KOTANI FUMIO
description PURPOSE:To vary freely the control value of an output, by comparing the output of an operational amplifier with the variable control value. CONSTITUTION:When output voltage VO5 is lower than the control voltage VX of a variable power supply 10, an operational amplifier 13 compares both voltages with each other. As a result, the amplifier 13 delivers the negative output. This negative voltage is, however, cut off by a diode 14 and gives no effect at all to a feedback circuit of an operational amplifier 4. Therefore, the amplifier 4 functions as an operational amplifying circuit with a fixed amplification factor -A that is decided by resistances 2 and 3. The amplifier 13 also compares above-mentioned two voltages when the voltage VO5 is higher than the voltage VX. Then the amplifier 13 delivers the positive voltage. In this case, the diode 14 conducts and the output of the diode 14 is added to the amplifier 14. Thus the amplifier 4 delivers the voltage VO5 equal to the voltage VX since the output of the amplifier 4 is going to be negative.
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subjects BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
ELECTRICITY
title SATURATION CIRCUIT
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