| 摘要 |
A phase controlled 50 percent duty cycle variable output bridge power converter in which the 50% duty cycle is maintained constant while power output is controlled by changing the phase relationships between two 50 percent duty cycle square waves. When the 50 percent duty cycle square waves are 180 degrees out of phase, the output power is maximum, whereas when the waves are in phase, the output power is essentially zero. The circuits are conditioned to operate in a current mode, snubbing circuits are provided to improve load line characteristics and power consumption of the switching elements, and both soft start-up and controlled shut-down circuits are included to further enhance circuit performance.
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