Re: HV. Lexan electret question

Body

Hi Ole, 

 thanks for your suggestion. I have a couple of PRHVP-16 so do I connect one in series of +(positive) and one in series with -(negative) and then to electret? Is that what you mean or only one to +(positive) terminal is sufficient? I have seen last setup in some schematics.
 

 Thanks.
 

 Alex.
 

---In [email protected], <onielsen@...> wrote :

 Hi Alex,



 

 For making electrets a polarized voltage is needed. This requires a high voltage (HV) rectifier (diode) in series with the HV output terminals and the electret.

A spark gap just short out the voltage each time it ignites. This is not good for making an electret. Current only run during charging of the electret. After being charged only some small leak current may be running. Leak current isn't good in any capacitor or electret.

Regards
Ole


 

---In [email protected], <bugaian@...> wrote :

 Hello to all in this new year.
 

 I have followed this guide to build a flyback river:
 

 http://kaizerpowerelectronics.dk/high-voltage/mazilli-zvs-flyback-driver/ http://kaizerpowerelectronics.dk/high-voltage/mazilli-zvs-flyback-driver/
  
 It works quite well and spark is quite impressing, specially if you increase voltage more then 12V.
 

 Now I want to move on using this for testing/creating electrets. 
 

 Question is for people with HV experience. 
 

 Should I have a spark-gap when I apply HV to terminals? I see that if I don't have a spark-gap circuit is not consuming DC current so I suppose its not quite working, so my position is to apply HV in paralel with a spark gap.
 

 

 Please let me know of your experience with this.
 

 Thanks.
 

 Alex.