Hi,
I have a project where the load is operated from a battery. I want to be able to power it from a power supply if I'm in the lab for example. I want the circuit to automatically detect that the power supply is connected and thus disconnect the battery.
However I can't afford to lose the power so what I would most likely need is a circuit similar to a diode-or . The problem is that my power supply has a lower voltage than the battery and therefore I cannot use this configuration.
Does someone have a recommandation on how I could build such a make before break make circuit?
Ultimately I could use a chip like the LTC4417. This chip has a break before make circuit but the switching is made very fast. My power would remain always connected but I would have a current surge at the switching, which I am trying to avoid.
Thanks a lot for the help guys !
I have a project where the load is operated from a battery. I want to be able to power it from a power supply if I'm in the lab for example. I want the circuit to automatically detect that the power supply is connected and thus disconnect the battery.
However I can't afford to lose the power so what I would most likely need is a circuit similar to a diode-or . The problem is that my power supply has a lower voltage than the battery and therefore I cannot use this configuration.
Does someone have a recommandation on how I could build such a make before break make circuit?
Ultimately I could use a chip like the LTC4417. This chip has a break before make circuit but the switching is made very fast. My power would remain always connected but I would have a current surge at the switching, which I am trying to avoid.
Thanks a lot for the help guys !