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Precision Buffered Reference Circuit Diagram

Written By MR HARI on Kamis, 08 Agustus 2013 | 06.01

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The Precision Buffered Reference Circuit Diagram will provide 3 preset currents which will remain constant despite variations of ambient temperature or line voltage. ZDl produces-a temperature stable reference voltage which is applied to the non-inverting input of ICl. 100% feedback is applied from the output to the inverting input holding the voltage at Q2s emitter at the same potential as the non-inverting input. 

The current flowing into the load therefore is defined solely by the resistor selected by Si. With the values employed here, a preset current of 10 mA, 100 mA or 1 A can be selected. Q2 should be mounted on a suitable heats ink.

Precision Buffered Reference Circuit Diagram

Precision Buffered Reference Circuit Diagram

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