ElGringo
Newbie level 5
- Joined
- Sep 8, 2004
- Messages
- 9
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1,281
- Location
- Houston, TX, USA
- Activity points
- 120
I am developing a circuit and want to do something that I think is relatively simple. I am very much a novice at designing my own circuits. I have taken pieces from other circuits and adapted them to my own use. On my current project, I want to have an automatic power supply switch.
Meaning, under normal conditions I would run off of a 9V battery throuh a power regulator to +5V to drive my circuit. However, in cases where my battery diesor I want to preserve it, I want to be able to run off of a +5v Power adapter.
What do I do circuit wise to provide an automatic switch that senses when the adapter is plugged in and does not draw power from the battery.
I have doen several searches, and probably do not have the right terminology for this to provide an accurate result.
Many thanks appreciated!!
Meaning, under normal conditions I would run off of a 9V battery throuh a power regulator to +5V to drive my circuit. However, in cases where my battery diesor I want to preserve it, I want to be able to run off of a +5v Power adapter.
What do I do circuit wise to provide an automatic switch that senses when the adapter is plugged in and does not draw power from the battery.
I have doen several searches, and probably do not have the right terminology for this to provide an accurate result.
Many thanks appreciated!!