Brief LM393 comparator controlling NPN BJT switch with active buzzer load circuit

Table of Contents

Comparators and op amps are better at switching transistors on and off than acting as switches themselves.

Brief circuit schematics with short video – List of pages
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Diagram

Simple LM393 comparator controlled NPN BJT switch with actuve buzzer circuit schematic diagram by electronzap electronzapdotcom
Simple LM393 comparator controlled NPN BJT switch with actuve buzzer circuit schematic diagram by electronzap electronzapdotcom

Affiliate link ad. Kit I bought and use often these days for common integrated circuits.

Video

Quick LM393 comparator controlled 2N3904 NPN BJT switch with active buzzer load circuit

Next topic: Brief op amp rail splitter circuit turning single into split dual supply



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