help me design 1.5 second backup circuit

[sabihmahmood]

Hi my wireless router operates at 9V DC 1amp. My dc to ac inverter takes 1.5 seconds to turn on due to which my wireless router turns off and turns on. I want to design a circuit which provides a backup of 1.5 sec to my router.

I think that capacitor would solve this but i don't know the value ...

 

[Resqueline]

A 1F capacitor changes its voltage by 1V per second when exposed to a current of 1A.
I think it would be acceptable for the router if the voltage drops down to 7.5V.
One of those 1F car stereo capacitors could fit the bill.

 

[sabihmahmood]

A 1F capacitor changes its voltage by 1V per second when exposed to a current of 1A.
I think it would be acceptable for the router if the voltage drops down to 7.5V.
One of those 1F car stereo capacitors could fit the bill.

Thanks a lot for your support ...

 

[sabihmahmood]

A 1F capacitor changes its voltage by 1V per second when exposed to a current of 1A.
I think it would be acceptable for the router if the voltage drops down to 7.5V.
One of those 1F car stereo capacitors could fit the bill.

I have checked and it is operating at 7.5 volts also ...