Search found 4 matches

by kin1988
Sun Dec 15, 2019 10:29 am
Forum: Geiger Counter
Topic: Geiger HV resets the arduino problem
Replies: 1
Views: 13095

Geiger HV resets the arduino problem

I have MC34063 based 500V dc supply near arduino. The system works ok. But as soon as i try to measure the HV using multimeter probe, it resets the Arduino immediately. Seems like a surge or em spike . Arduino is run by 5V supply HVDC is run by 12 V supply Both circuit share common DC ground for let...
by kin1988
Tue Aug 16, 2016 4:15 am
Forum: Geiger Counter
Topic: Geiger Kit working at 1300V
Replies: 4
Views: 13209

Re: Geiger Kit working at 1300V

What type of Inductor are you using ? I am trying to get 500V but inductor of 10mH is saturating and a humming noise is heard from the Inductor, I am using Coilcraft 10mH Ferrite core inductor.
by kin1988
Tue Aug 16, 2016 2:18 am
Forum: Geiger Counter
Topic: Suggest HV circuit modification for 500 V
Replies: 1
Views: 3670

Re: Suggest HV circuit modification for 500 V

Here is my circuit, Inductor rating is 20mH, 0.3A current, Resistance 6.55 ohms. But still I am not getting 500 V output on adjustment, its becoming stable at 400V DC
by kin1988
Mon Aug 15, 2016 11:37 pm
Forum: Geiger Counter
Topic: Suggest HV circuit modification for 500 V
Replies: 1
Views: 3670

Suggest HV circuit modification for 500 V

Please suggest HV circuit modification for 500Volts, I am using 5V Vcc, 10mH inductor and rest are same. Please suggest modification for 500V as I need to use LND712 geiger tube.