Search found 4 matches

by SystemLoc
Mon Dec 29, 2014 3:56 am
Forum: Assembly instructions for the Thinkgeek nixie thermometer
Topic: Troubleshooting
Replies: 119
Views: 226372

Re: Troubleshooting

Thanks! Just finished building the PCB. Works wonderfully without a hitch!
by SystemLoc
Sun Dec 28, 2014 5:44 pm
Forum: Assembly instructions for the Thinkgeek nixie thermometer
Topic: Troubleshooting
Replies: 119
Views: 226372

Re: Troubleshooting

Can you post the overlay of the new er version PCB?
by SystemLoc
Sun Dec 28, 2014 5:21 pm
Forum: Nixie thermometer V1
Topic: A few PSU questions
Replies: 2
Views: 13004

Re: A few PSU questions

Brilliant! That makes much more sense. I couldn't simulate a boost convertor to get that much increase worth crud; the duty cycle is too high. I just hit upon this app note http://www.analog.com/static/imported-files/application_notes/AN-1126.pdf I took the info about the C6 and the L1 in the 'Kit c...
by SystemLoc
Sun Dec 28, 2014 4:50 am
Forum: Nixie thermometer V1
Topic: A few PSU questions
Replies: 2
Views: 13004

A few PSU questions

Got my Nixie clock kit today, and piecing together how it works by reviewing the PIC code and tracings. I've got a few questions on the HV PSU circuit: The 5V supply comes across the 470uF filter cap. There is then a boost circuit formed from the 20nH coil and NTD5865NL. The MOSFET switch is driven ...