(See Magvid_supply2.gif file to better understand this text )
 - Ideal solution for MAGVID


Ideal solution for MAGVID.


ADVANTAGES:

- All digitally controlled (i.e.: by PWM)

- The phase offset is digitally kept at 90 degrees.

- The switching transistors are always fully ON or fully OFF, thus
not dissipating any heat

- The LC circuit conducts sinusoid voltage, current and magnetic
stream.

- The cumulative energy in the LC circuit can be thousands times
higher than the instantaneous
energy delivered by the power supply. It takes a little while to
build up, though.

- The switching transistors do not need to conduct all the current
sloshing in the LC circuit.

- To keep it going at the resonance frequency, the switching
transistors have to deliver only
enough energy to compensate for the RI^2 resistive losses in the LC
circuit.

- Inexpensive (no high power analog amplifiers/transistors/drivers,
are necessary). Low component
count.


DISADVANTAGES:
- The frequency of the digital control of the switching transistors
must match the resonant
frequency of the LC circuits.

- The resonant frequency of the two separate LC circuits must be
tuned to be as close as possible,
or the switching transistors and the power supply will need to work
harder to keep the phase
offset at 90deg.

- Without some kind of energy limiting, the LC circuit might
accumulate so much energy after a
while, that it literally blows itself up (e.g.: melted coil or
shorted capacitor).
