PROBLEM TO BE SOLVED: To provide a power supply control device capable of keeping an ON state of an electronic apparatus mounted on a vehicle without using BBC even at the time of brownout.SOLUTION: A power supply control device constitutes an electronic apparatus mounted on a vehicle and executes control of voltage supply to a voltage supply object. The power supply control device includes a step-down circuit interposed between the power supply and the supply object for stepping down the voltage of the power supply to a voltage lower than a voltage value obtained by subtracting an amount of drop in the voltage due to brownout from the voltage of the power supply, and a step-up circuit interposed between the step-down circuit and the supply object for stepping up the output voltage of the step-down circuit to a voltage that does not exceed a rating voltage of the supply object.SELECTED DRAWING: Figure 1
【課題】ブラウンアウト時であってもBBCを用いることなく車両に搭載された電子機器のオン状態を維持する電源制御装置を提供する。【解決手段】この電源制御装置は、車両に搭載される電子機器を構成し、電圧の供給対象に対する電圧供給の制御を行う。電源制御装置は、電源と供給対象との間に介在し、電源の電圧を、電源の電圧からブラウンアウトによる電圧の降下量を減じた電圧値よりも低い電圧に降圧する降圧回路と、降圧回路と供給対象との間に介在し、降圧回路の出力電圧を、供給対象の定格電圧を超えない電圧に昇圧する昇圧回路と、を備える。【選択図】図1
POWER SUPPLY CONTROL DEVICE AND HEAD-UP DISPLAY DEVICE
電源制御装置およびヘッドアップディスプレイ装置
02.03.2017
Patent
Elektronische Ressource
Japanisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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