Hi All,
I'm trying to delay the start up of a power supply outputs by 10 seconds. I've got a chiller "thing" that I've put together using a peltier and some computer liquid cooling parts. Problem I have is that the thermostat flickers as it's going in and out of the temperature boundary and I want to avoid the power supply to the peltier from flickering.
The power supply is a 200W computer supply, and I want to put the delay in the power_ok/ps_on so that when the mains comes on the power supply only goes active 10 seconds later.
I've looked at some switching timer circuits and have put the following together. I'm pretty sure that the left side is right for a ten second delay, but I'm not sure I got the switch side right.
Any help appreciated.
Si
I'm trying to delay the start up of a power supply outputs by 10 seconds. I've got a chiller "thing" that I've put together using a peltier and some computer liquid cooling parts. Problem I have is that the thermostat flickers as it's going in and out of the temperature boundary and I want to avoid the power supply to the peltier from flickering.
The power supply is a 200W computer supply, and I want to put the delay in the power_ok/ps_on so that when the mains comes on the power supply only goes active 10 seconds later.
I've looked at some switching timer circuits and have put the following together. I'm pretty sure that the left side is right for a ten second delay, but I'm not sure I got the switch side right.
Any help appreciated.
Si