BDBR Modelling Phase I

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

Original poster: "David Sharpe by way of Terry Fritz <twftesla-at-qwest-dot-net>" <sccr4us-at-erols-dot-com>

Terry, All

Modeling of power circuit does indicate promise, feeding a transformer
coupled resistive load:
(1) Waveform amplitude does mimic a sinusoidal function , albeit with some
minor

     distortion around '0' crossings,
(2) Small input coil (~1mH) feeding a 1uF cap (microwave oven self healing
      maybe???) does provide for continuous input AC power current flow,
(3) With a 5% to 95% DC adjustment output voltage amplitude follows
      DC adjustment.

Control PWM IC targeting is an ON Semiconductor (ex. Motorola) MC34060A-D.
Dedicated single channel, with dual V and I error amps, 0-92%
duty cycle control, soft start, and UV lockout for the princely price of... $
0.69 ea.
(yea, lets buy a dozen of em   :^)   ), and available for Allied and Newark.
May
order some samples from work.

Modeling was performed with 10-20kHz PWM carrier Fop, simulated
power flows of approaching 1 kW.

Looking good.....   :^)

Regards
Dave Sharpe, TCBOR
Chesterfield, VA. USA