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Re: VTTC Power Supply Fundamentals - What am I missing?
- To: tesla@xxxxxxxxxx
- Subject: Re: VTTC Power Supply Fundamentals - What am I missing?
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Tue, 18 Oct 2005 18:52:29 -0600
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- Resent-date: Tue, 18 Oct 2005 18:53:06 -0600 (MDT)
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Original poster: Steve Conner <steve@xxxxxxxxxxxx>
surprised to see a reading of only 2kV, even with no load.
The level shifter circuit used in microwaves and VTTCs has a
pulsating DC output. It's 2kV average, 4kV peak, and your meter reads average.
>the staccato controller is seriously messed up
The level shifter's output dips to zero voltage 60 times a second,
and the staccato controller needs those zero periods to let its SCR
turn off. Your second circuit gives smoothed DC, so the SCR never
gets a chance to turn off.
If you stick with the level shifter, it will give longer sparks than
a DC supply for the same plate dissipation.
Steve Conner
http://www.scopeboy.com/