Re: Calculating the drain I - SSTC

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: jimmy hynes <chunkyboy86-at-yahoo-dot-com> 

Hi,

The easiest way to calculate current is just assuming a fixed voltage and 
time. At 221.3KHz, the
half cycle time is about 2.26 us. 300v/18.9uh*2.26us= 36 amps. That is the 
peak current after the
first cycle, but it will settle down to +-18amps (peaks).

This is only magnetizing current, and the total current would be higher. To 
figure out the total
current, you need to know how the streamer load acts.

--- Tesla list <tesla-at-pupman-dot-com> wrote:
 > Original poster: "S.Gaeta" <sgtporky-at-prodigy-dot-net>
 >
 > On a more serious note, I measured the inductance of my primary today, and
 > found it to be 18.9 mico henrys. How do I calculate the current that will be
 > flowing through it when I have 300 VDC on the rails, and I am switching at
 > 221.3 KHz?.
 >
 > I remember reading somewhere that sine wave formulas don't work with square
 > waves, and that somehow harmonics enter into the formula, but I dont
 > remember how it went :-(
 >
 > I'm almost done with this thing! I just gotta build the driver and low
 > voltage power supply!
 >
 > Sue
 >
 >


=====
Jimmy