CPC H02M 3/338 (2013.01) [H02M 1/32 (2013.01); H02M 3/33571 (2021.05); H02M 1/327 (2021.05)] | 17 Claims |
1. A DC-DC converter, comprising:
a first feedback winding;
a second feedback winding, wherein the first and the second feedback windings are arranged to be out of phase with respect to each other;
a drive circuit including:
first and second switches;
a first capacitor coupled with the first switch; and
a second capacitor coupled with the second switch;
a first thermal regulating component coupled to the first switch and including a first thermistor and a first resistor connected in parallel; and
a second thermal regulating component coupled to the second switch and including a second thermistor and a second resistor connected in parallel; wherein
the first switch is coupled to the first feedback winding, and the second switch is coupled to the second feedback winding;
the drive circuit produces an oscillating signal by discharging the first and second capacitors alternately to energize the first and second switches;
a discharging of the first and the second capacitors is determined by electromagnetic induction in the first and second feedback windings; and
the first and the second thermal regulating components regulate the switching frequency of the first and the second switches over an operating temperature range of the DC-DC converter.
|