3 Phase Driver

YOUR LINK HERE:

http://youtube.com/watch?v=UxGXKMuvTHk

3 Phase Mosfet driver for energizing coils. Uses a 74LS175 D-flip-flop IC to fire the gates of the mosfet transistors in sequence. Provides one circui for the Clock CLK, and D1, D2, and D3. All of the outputs may be connected to one end f a coil winding to act as a high-speed switch. The D1, D2, D3 outputs ar 120 degrees out of phase. The input CLK is provided by a signal generator. This video only shows D3 hooked up for a preliminary test. Later I'll hookup all 4 coils of my tetrahedron coil. Schematic is included in video. Note, the LEDs and associated resistors are for testing only, and should be removed after the circuit is working. Back-spike voltages blow them out frequently. Note on Q4, I put a diode between the Drain and +6V this lets the LED live longer, and directs the back-spike voltage from the coil to the +6V volt, charging it up a bit perhaps. Big thanks to Russ G. • • Excellent document by Russ here: • • http://www.ringsbyruss.com/youtube/Ru... • • visit the new vortexspace.org site which is great info • aloha

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