List of DIY Electronics Engineering Projects

FUNCTIONAL BLOCK DIAGRAM IC 723






Functional Block Diagram of IC 723 Regulator


IC 723 has two sections. As shown in the block diagram,


functional block diagram ic723




A constant current Source:- A zener diode and a reference amplifier producing a constant voltage of about 7 volts at Vref end. The zener diode is being compelled to operate at fixed point (so that zener output voltage is a fixed voltage) by a constant current Source.


functional block diagram ic723




The second section of IC 723 comprises of an error amplifier, a series pass transistor Q1 and a current limiting transistor. The error amplifier compares a sample of output voltage applied at Inverting input terminal to the reference voltage Vref applied at the Non-Inverting input terminal.
The conduction of the transistor Q1 is controlled by the error signal.


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Tittu Thomas

Author & Editor

I'm Tittu Thomas, An Electronics and Communication Engineer from India, Kerala. I love doing hobby electronics circuits, blogging, programming, etc. Started this blog while doing my B-Tech degree under CUSAT university.



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