A power conversion device according to the present disclosure is applied with a DC input voltage and outputs a DC output voltage to a load. The power conversion device includes first to fourth switch elements, a resonance circuit including an inductor and a capacitor, a transformer in which the inductor, the capacitor, and a primary-side coil are connected in series, a rectifier circuit, a smoothing circuit, and a controller. The controller controls an operation frequency, simultaneously switches the first and fourth switch elements in a first mode, and switches the fourth switch element with a phase of the fourth switch element delayed by a predetermined first phase with respect to the first switch element in a second mode. The controller switches the first and second modes according to at least one of the output voltage, an output current, a dead time current, the input voltage, and a circuit temperature.
POWER CONVERSION DEVICE, VEHICLE, CONTROL METHOD, AND COMPUTER PROGRAM PRODUCT
2024-09-26
Patent
Electronic Resource
English
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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