[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
SSTC-Will This Work?
Original poster: "Marry Krutsch by way of Terry Fritz <twftesla-at-qwest-dot-net>" <u236-at-earthlink-dot-net>
Hi all,
I threw my SSTC drive circuit together without any real knowledge of
the way it SHOULD work. The schematic is:
www.hot-streamer-dot-com/temp/SSTC_circuit_1.jpg
Will this work? I've omitted the schottky diode, and the transistors
shown are supposed to be MOSFETs, not bi-polars. Signal 1 is simply a
pulse, variable in both width and frequency, and signal 2 is the same
pulse shifted 180 degrees. I'd like to run my coil on rectified 240
VAC. The MOSFETs I want to use are 600V, 12A, and are in a T0-3
package.
Thanks to all who responded to my last SSTC post. Any tips are welcomed
:-)).
Thanks,
Winston K.
PS-I finished my PWM circuit yesterday. It works perfectly :-)). I'm
putting the main signal into a pulse differentiator with a variable
resistor (just an RC circuit, really), and feeding its output into a
schmitt trigger. I made this thing up as I went, so I ran into some
problems. One big one was controlling two independent signals (the
outputs of a flip-flop) with one control. I ended up using two
transistors, biased by one variable resistor, as the resistors in the
PWM circuit. To my surprise, it worked :-)). As the capacitor charging
curve levels off, the schmitt trigger output goes high for a longer
time, and vice versa.