SELF-OSCILLATING HIGH FREQUENCY POWER CONVERTER A self-oscillating power converter utilizes a MOSFET power transistor switch with its output electrode coupled to a tuned network that operatively limits the voltage waveform across the power switch to periodic unipolar pulses. The transistor switch may be operated at a high radio frequency so that its drain to gate interelectrode capacitance is sufficient to comprise the sole oscillatory sustaining feedback path of the converter. A reactive network which is inductive at the operating frequency couples the gate to source electrodes of the transistor switch and includes a variable capacitance as a means of adjusting the overall reactance, and hence the converter's switching frequency in order to provide voltage regulation. A resonant rectifier includes a tuned circuit to shape the voltage waveform across the rectifying diodes as a time inverse of the power switch waveform. (FIG. 1).
申请公布号
CA1276977(C)
申请公布日期
1990.11.27
申请号
CA19860510828
申请日期
1986.06.04
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
BOWMAN, WAYNE C.;MALIK, RANDHIR S.;SEIDEL, HAROLD;SUITER, WEYMAN B., JR.;ZIESSE, NORMAN G.