Hi,
I need to build a circuit where I can choose which power-supply would supply the power to the system.
The power supplies are: Battery, AC (converted to DC via a regulator) and USB's 5v pin.
I understand that there's a technique for choosing the wanted power supply with Schotkky diodes. But I don't know & can't find any circuit in the internet.
If the USB cable is connected to the system, I wish it to give power to the system.
Otherwise, if the AC is connected, I wish that it would give power to the system.
Otherwise, if the USB & AC are not connected, then the battery would give power to the system.
I need this circuit in order to save the battery's power.
Can anyone help me with that?
Thank you.
Dor.
I need to build a circuit where I can choose which power-supply would supply the power to the system.
The power supplies are: Battery, AC (converted to DC via a regulator) and USB's 5v pin.
I understand that there's a technique for choosing the wanted power supply with Schotkky diodes. But I don't know & can't find any circuit in the internet.
If the USB cable is connected to the system, I wish it to give power to the system.
Otherwise, if the AC is connected, I wish that it would give power to the system.
Otherwise, if the USB & AC are not connected, then the battery would give power to the system.
I need this circuit in order to save the battery's power.
Can anyone help me with that?
Thank you.
Dor.