PROBLEM TO BE SOLVED: To provide a switching power supply capable of improving a power conversion efficiency and preventing the enlargement of an apparatus.SOLUTION: A DC-DC converter 2 serving as a switching power supply includes a power circuit 21 of a switching type capable of executing a voltage conversion operation for converting an input voltage and generating an output voltage, and a control section 22 for controlling a voltage conversion operation of the power circuit 21. The control section 22 executes a voltage conversion operation of the power circuit 21 when a load factor of the power circuit 21 is under such a state as to be not less than a predetermined value.
【課題】電力変換効率を向上でき、かつ、装置の肥大化を防止できるスイッチング電源を提供する。【解決手段】スイッチング電源としてのDC/DCコンバータ2は、入力電圧を変換し出力電圧を生成する電圧変換動作を実行可能なスイッチング方式の電源回路21と、電源回路21の電圧変換動作を制御する制御部22と、を備える。制御部22は、電源回路21の負荷率が所定値以上となる状態のとき、電源回路21の電圧変換動作を実行させる。【選択図】図2
SWITCHING POWER SUPPLY
スイッチング電源
2015-12-07
Patent
Electronic Resource
Japanese
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 / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |