BATTERY LOW INDICATOR 12V
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General purpose 12 volt battery low indicator, wired around IC 741 is presented here.You can add this little circuit in your electronic inverter,emergency back up light,computer ups unit etc.The red LED(D2) lights up when the battery voltage level drops beyond the set value.An active piezo sounder can also be used in place of D2.Note that adjustment of preset pot P1 is very critical in this design.(circuit reproduced from circuit library of betron teklabs - some rights reserved)
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betron maintains an electronics circuits archive with some technical documents, many of these circuits were designed and/ or developed by me. There are also many links to useful electronics websites. The intention to put it in the web is to enable students, hobbyists and professionals to get more ideas on various aspects of electronics and circuit design.This blog site is intended to support electronics education. The documents, software and links are provided to enhance the ability of an electronics student, hobbyist or professional by sharing information. The information should be used by the site visitor, at his or her own risk and responsibility. There may be concept, design and link errors in the pages. I correct and update errors or links as I find them.© t.k.hareendran
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