A Multi-Output Half-Bridge Converter for a Plasma Display Panel
Keywords:
Band-pass filter, multi-output, power supplies, PWM.Abstract
This project discusses a half bridge converter with
four independent outputs for a plasma display panel application.
The outputs are typically 180V/350W, 65V/200W, 19V/15W,
17V/10W. Two MOSFET switches in a single leg constituting a
half bridge generate a rectangular voltage. The output is
connected to the primary of a transformer, which has four
secondaries. All outputs are regulated through the amplitudes
of carrier and sinusoidal reference waveforms respectively. The
outputs are regulated independently over a wide range by
varying the amplitude of the reference waveforms used. The
simulation of this converter has been and the results closely
match with the expected values. Cross regulation was also
found to be minimal.
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