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|This low voltage circuit can be used to monitor batteries and other volatile sources of current for problems. The circuit sounds an alarm and lights an LED, but can be interfaced to any number of other circuits for many different uses.|
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|hi everyone.. I need to provide battery back up facility to my one project. so for that purpose i used Li-ion battery(Max 4.2V/ 1A) to provide the supply to load. so i need to cut off the load at 3V. can i use above circut for that purpose?? please anyone help me. Thanks in advances|
|where do we give the i/p and take the o/p and i hve a 9V battery and 12V zener would it work|
|What if I have a 12 volt battery and want it to alarm me when it drops to say 9 to 10 volts. How does this work?|
|Substituted a HA17339 for the LM339, used a 6.2V zener, a 2.2V (green) LED and a 6K POT. Left out the piezo buzzer. The circuit works like a charm.|
|AOA I WANT CONSTRUCT THE WATER FLOW ALARM CIRCUIT SO PLZ KINDLY HELP ME ABOUT THIS PROJECT ME WAITING OF YOUR REP AND PLZ SEND THE DEMO CIRCUIT FOR TH E IDEA ,,, THANK YOU DEAR|
|Nice project..it works perfect..Thank u!|
|The schamatic I downloaded had the Zener backwards and the LED stayed on. Turned around and worked great. Made another on for my neighbors stored RV battery. Thanks|
|hi, i cannot get a 6v zener diode in New Zealand, will a 5.6v or a 6.2v work instead?|
|I am planning to trigger the 12V Cutout at 11V so please suggest me the alternative for 5k pot.|
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