Posted: Mon Aug 03, 2015 4:09 pm Post subject: overall undervoltage lockout for microcontroller and pheripe
Hi
I use a 12volt battery to bakup an industrial circuit.when main power disconnected i should send a condition status to a plc via rs232.
my main problem is buttery undervoltage. if battery be full charge every thing is ok. but when battery start to reduction voltage by time, the problem start.
9volt requlator used for pheriperal circuit start to unrequlate voltage.
i need a under voltage lockout circuit for 12 vlot. it should start the circuit with 11 volt and stop circuit with 10 volt.
any idea would help me.
I use LTC4365 from Linear. You could get a sample from them. It's a hardware only solution.
I added a battery test button with green/red led if you are interrested.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum You cannot download files in this forum