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From: Winfield Hill <hill@rowland.harvard.edu>
Newsgroups: sci.electronics.design
Subject: Re: Simple Low Voltage Shut Down
Date: 30 Mar 2017 05:13:09 -0700
Organization: Rowland Institute
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Robert Miller wrote...
>
> I have a little circuit consisting of an LM358 and
> BC547 emitter follower. It runs off 4 x AAA alkaline
> batteries and consumes about 50mA.
>
> What is the simplest way, without consuming additional
> power, of disabling the output from the LM358 when
> the battery voltage drops below around 4V?

.
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. --+-------+------


-- 
 Thanks,
    - Win