Search found 3 matches

by AllenBV
Mon Mar 21, 2005 11:15 am
Forum: General Discussion
Topic: Reverse polarity protection
Replies: 6
Views: 1528

Re: Reverse polarity protection

There is a brownout circuit on the micro that I plan to use but I would like the circuit to run as long as possible. I think that I will use the P FET example instead of using the Schottky diode for this reason.
by AllenBV
Fri Mar 18, 2005 4:14 am
Forum: General Discussion
Topic: Reverse polarity protection
Replies: 6
Views: 1528

Re: Reverse polarity protection

My thanks to both posters for your help. When I asked the question I was concerned about the voltage drop. I really like the slick idea about using the FET for this issue. <p>Bradley
by AllenBV
Thu Mar 17, 2005 5:09 am
Forum: General Discussion
Topic: Reverse polarity protection
Replies: 6
Views: 1528

Reverse polarity protection

I have a small battery operated device using 4.5 volts DC. I want to protect against the user from putting the batteries in backwards. Would putting a diode (1n4004) in series with the load on the + side of the battery solve this problem or do I have to do something a bit more complicated?<p>Thanks