How many miliseconds is needed not to shut down on UpSquared?

yunus_acz

Hi all,
I am using UpSquared in an embedded project. In my project, I have a main battery to power UpSquared. I also have a back-up battery for some situations.

For example, my main battery is not able to power my UpSquare anymore and need to switch back-up battery. My question is that how many minimum miliseconds are needed to switch time because I dont want my UpSquared to shut down.

Thanks

rogertsai(AAEON)

@yunus_acz
It depends on how fast the voltage drop to 4.75v. To prevent power off, the design of your power system (or UPS) must ensure that adequate power is provided to UP^2

yunus_acz

@rogertsai(AAEON) I am tryingto calculate this time but I need the capacitor values inside UpSquared. Is it possible to find out the values of capacitors inside?

rogertsai(AAEON)

@yunus_acz
Here is the information for your reference
C392 is 22uF / 10V
C393 is 0.1uF / 16V

yunus_acz

@rogertsai(AAEON) Thanks for your reply. According to your reference, total capacitor is 22.1 uF. When I want to use the formula
Time = dV * C / I
here dV is 5V, I is 4 Amper and C is 22,1 uF. the result time is 0,02 microseconds.