F find_beat New Member Oct 21, 2013 #1 I have a circuit that can be powered by 2 different power source. 1. Using Apple Lightning Cable 2. Using a micro USB cable Only 1 suppose to be plug in at a time. What component/circuit design can I use to prevent someone from plugging 2 source at the same time? Thanks
I have a circuit that can be powered by 2 different power source. 1. Using Apple Lightning Cable 2. Using a micro USB cable Only 1 suppose to be plug in at a time. What component/circuit design can I use to prevent someone from plugging 2 source at the same time? Thanks
Grossel Well-Known Member Oct 21, 2013 #2 Use a relay. That would make it easy to make it a master/slave supply (only when master supply is dead/turned off, the slave supply is allowed to connect)
Use a relay. That would make it easy to make it a master/slave supply (only when master supply is dead/turned off, the slave supply is allowed to connect)