Hi Everyone,
This is my first post.
I'm trying to make a battery-powered device that plugs into an AC adapter for recharging. When it is plugged in, the circuit should still be powered from the adapter. I want to prevent the adapter from directly connecting to the the battery (limiting the connection through the dedicated recharge IC). In the past I've just used a schottky diode in series with the high side of the battery, but I've decided that even a few hundred millivolts is too much to waste. I've been trying to find another solution but so far haven't found anything that seems identical to my setup. Most sites suggest using a mosfet, but this is offered as a solution to reverse battery protection. Can I use a mosfet in series with a battery as I've drawn in the following schematic to prevent the adapter voltage (marked 12V) from flowing into the battery? Thanks.
**broken link removed**
This is my first post.
I'm trying to make a battery-powered device that plugs into an AC adapter for recharging. When it is plugged in, the circuit should still be powered from the adapter. I want to prevent the adapter from directly connecting to the the battery (limiting the connection through the dedicated recharge IC). In the past I've just used a schottky diode in series with the high side of the battery, but I've decided that even a few hundred millivolts is too much to waste. I've been trying to find another solution but so far haven't found anything that seems identical to my setup. Most sites suggest using a mosfet, but this is offered as a solution to reverse battery protection. Can I use a mosfet in series with a battery as I've drawn in the following schematic to prevent the adapter voltage (marked 12V) from flowing into the battery? Thanks.
**broken link removed**