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IN-VEHICLE STEP-DOWN SWITCHING POWER SUPPLY, IN-VEHICLE ELECTRONIC CONTROL DEVICE, AND IDLE STOP SYSTEM
IN-VEHICLE STEP-DOWN SWITCHING POWER SUPPLY, IN-VEHICLE ELECTRONIC CONTROL DEVICE, AND IDLE STOP SYSTEM
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机译:车载降压开关电源,车载电子控制装置和怠速停止系统
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摘要
Provided is an in-vehicle step-down switching power supply capable of obtaining a stable output while suppressing nose in a harmful frequency band even when an input voltage decreases. The in-vehicle step-down switching power supply includes a switching frequency control unit and the switching frequency control unit includes a switching frequency range setting unit that changes a switching frequency between fa and fb and a switching frequency path setting unit that skips a frequency band from fd to fe between fa and fb, via an intermediate frequency fc between fa and fb.
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