PROBLEM TO BE SOLVED: To provide a ship illumination device that is enabled to use a broad voltage range as a DC power source.SOLUTION: A ship illumination device includes a voltage conversion circuit 20A for adjusting the voltage V1 of a DC power supply 10 input via a switch SW1, a control circuit 30A in which the output voltage V2 of the voltage conversion circuit 20A is input to a comparator 32 as a control signal, and an LED circuit 40 for which turn-on, turn-off, dimming, lighting pattern, etc. are controlled by the control circuit 30A. The control circuit 30 A includes a comparator 32 for identifying the voltage V2, and a controller 33A for controlling the LED circuit 40 when the comparator 32 identifies that the voltage V2 has a predetermined level. The voltage conversion circuit 20A includes a voltage dividing circuit (R1, R2) for converting a first voltage to a voltage having the predetermined level and inputting the first voltage to the comparator 32 when the voltage V1 is equal to the first voltage, and a zener diode ZD1 (Z1) for converting a second voltage to the predetermined level in cooperation with the voltage dividing circuit (R1, R2) and inputting the second voltage to the comparator 32 when the voltage V1 is equal to the second voltage higher than the first voltage.SELECTED DRAWING: Figure 1

    【課題】直流電源として広範囲の電圧のものを使用できるようにした船舶照明装置を提供する。【解決手段】スイッSW1を介して入力する直流電源10の電圧V1を調整する電圧変換回路20Aと、電圧変換回路20Aの出力電圧V2が比較器32に制御信号として入力する制御回路30Aと、制御回路30Aによって点灯、消灯、調光、点灯パターン等が制御されるLED回路40とを備える。制御回路30Aは、電圧V2を識別する比較器32と、比較器32で電圧V2が所定レベルであると識別されたときLED回路40を制御する制御部33Aとを備える。電圧変換回路20Aは、電圧V1が第1の電圧のとき該第1の電圧を前記所定レベルの電圧に変換して比較器32に入力にする分圧回路(R1,R2)と、電圧V1が前記第1の電圧より高い第2の電圧のとき分圧回路(R1,R2)との協働により第2の電圧を前記所定レベルに変換して比較器32に入力するツェナーダイオードZD1とを備える。【選択図】図1


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    Title :

    SHIP ILLUMINATION DEVICE


    Additional title:

    船舶照明装置


    Contributors:
    YADA CHIHARU (author) / FUJIWARA SO (author)

    Publication date :

    2017-05-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H05B ELECTRIC HEATING , Elektrische Heizung / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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