H - Electricity – 02 – M
Patent
H - Electricity
02
M
H02M 3/135 (2006.01) H02M 3/00 (2006.01) H02M 3/335 (2006.01)
Patent
CA 2047775
ABSTRACT OF THE DISCLOSURE A coupled inductor type boost DC to DC converter with a single multipurpose magnetic component. The invention includes a conventional switch for converting an input DC voltage to a signal having a time varying waveform. The switch Q1 has a pole terminal connected to a source of input voltage, a control terminal and first and second throw terminals. The single inductive element includes a first winding LN1 connected between an output terminal of the switch and an input terminal of the converter and a second winding LN2 connected between the second throw terminal of the switch and an output terminal of the converter. In a first embodiment, the invention further includes a winding LN3 of the inductive element connected at a first end to the control terminal of the switch which provides a level shifting circuit for shifting the level of a drive signal applied to the control terminal of the switch. In a second embodiment, the invention includes a winding LN4 of the first inductive element connected at a first end to the first terminal of the switch Q1 and at a second end to the source of reference potential providing a ripple cancellation circuit. In a third embodiment, the invention includes a auxiliary regulated power supply circuit including a winding LN5 of the first inductive element connected at one end to the source of reference potential, a first diode CR2 connected at a first end to a second end of the winding LN5 of the first inductive element, a winding LN6, of the first inductive element, connected at a first end thereof to a second end of the first diode, a capacitor C4 connected to the second end of the first diode, and a second diode CR3 connected at a first end to a second end of the winding LN6 of the first inductive element and at a second end to an output terminal thereof.
Ashley Christopher R.
Ashley Christopher R.
Hughes Aircraft Company
Sim & Mcburney
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