Hi there,
Im working on my nixie clock project and was wanting a battery backup circuit that would power the logic when the wall-wart power was lost, such as in a power outage or if the clock needs moved.
Im planning on using a 12Vdc power supply and if i can get away with it, a 9 volt battery backup.
i came across the circuit in this thread http://forum.allaboutcircuits.com/showthread.php?t=3106
and was wondering if it could be modified to work for my purposes
i was also wondering if a capacitor would be needed somewhere to prevent the logic from messing up at the moment power is lost, im using 4000 series logic chips and so far ive had plenty of problems with them being sensitive
Thanks in advance
Im working on my nixie clock project and was wanting a battery backup circuit that would power the logic when the wall-wart power was lost, such as in a power outage or if the clock needs moved.
Im planning on using a 12Vdc power supply and if i can get away with it, a 9 volt battery backup.
i came across the circuit in this thread http://forum.allaboutcircuits.com/showthread.php?t=3106
and was wondering if it could be modified to work for my purposes
i was also wondering if a capacitor would be needed somewhere to prevent the logic from messing up at the moment power is lost, im using 4000 series logic chips and so far ive had plenty of problems with them being sensitive
Thanks in advance