| 摘要 |
A power supply circuit includes an input stage having a primary winding of a transformer, a drive pulse circuit producing clock and drive pulses, and an input control circuit for driving the primary winding with the drive pulse; and an output stage including a secondary winding, a first transistor having an input, and an output path connected with one end of the secondary winding; a second transistor having an input, and an output path connected with another end of the secondary winding; the first and second transistors being connected with the drive pulse circuit and the second transistor controlled to turn off by the clock pulse immediately before the first transistor turns on; an inductor connected to the output paths of one of the first and second transistors; and a capacitive circuit connected to the inductor.
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