I have recently put together a xtal oven using a ad9850 and a pic12f629, it works well.
However if I pull a plug on my 6 way power socket on my bench the software in the pic reboots, I have a 100uF cap (with a 0.1uF in parallel) on the input to the 7805 voltage reg in the oven, and a 10uF on the o/p, theres 0.1's across the pic and ad9850.
I 'scoped the 24v supply to the oven, theres just a few mV of noise and it doesnt seem to change when i pull a plug, the oven itself has a grounded metal case.
I'm still thinking if noise isnt conducted and if radiated noise is screened, why is the pic rebooting.
I just tried my usb 'scope which is also in a ally box to see if i could see anything better and it too crashes whel i pull a plug, I'm starting to think theres something up with the bench's power supply.
However if I pull a plug on my 6 way power socket on my bench the software in the pic reboots, I have a 100uF cap (with a 0.1uF in parallel) on the input to the 7805 voltage reg in the oven, and a 10uF on the o/p, theres 0.1's across the pic and ad9850.
I 'scoped the 24v supply to the oven, theres just a few mV of noise and it doesnt seem to change when i pull a plug, the oven itself has a grounded metal case.
I'm still thinking if noise isnt conducted and if radiated noise is screened, why is the pic rebooting.
I just tried my usb 'scope which is also in a ally box to see if i could see anything better and it too crashes whel i pull a plug, I'm starting to think theres something up with the bench's power supply.