LED Power Level Indicator Circuit of LM324 Design

Published:2011/7/12 3:28:00 Author:Michel | Keyword: LM324 Design, LED , Power Level, Indicator Circuit | From:SeekIC

This paper introduces two LED level indicator circuits composed of LM324. The LED level indicator are often applied to audio power amplifier circuit and output power level inductor of power-amplifying circuit. LM324 is four operational Intergrated circuit. Fitst,the LED PWL inductor introduced firstly has adjustable gain amplification level.It can be connected to audio power amplifier output terminal and also be used as power output level instruction and it could also be connected to the audio preamplifier output terminal (volume control circuit) which is used as prestage indicator.The circuit is showm as above.



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