To provide a vehicle-approach-informing device which can reduce pop noise in the case of battery activation control.SOLUTION: In AMP 14, a resistance 20 making a discharge resistance is connected in parallel to a capacitor 17 making a bypass capacitor disposed between a part for accepting input of a positive supply voltage Vin and a part for accepting input of a negative supply voltage. According to this, the capacitor 17 can be discharged quickly on a route running from the capacitor 17 through the resistance 20 and thus, a vehicle-approach-informing device 1 which can reduce pop noise in the case of battery activation control can be provided.SELECTED DRAWING: Figure 1

    【課題】バッテリ駆動制御とする場合において、ポップノイズを低減できる車両接近通報装置を提供する。【解決手段】AMP14における正電源電圧Vinが入力される部位と負電源電圧が入力される部位との間に配置されたバイパスコンデンサとなるコンデンサ17に対して、放電用抵抗となる抵抗20を並列接続させる。このため、コンデンサ17から抵抗20を通じる経路でコンデンサ17を素早く放電することができ、バッテリ駆動制御とする場合において、ポップノイズを低減できる車両接近通報装置1を提供できる。【選択図】図1


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    Title :

    VEHICLE-APPROACH-INFORMING DEVICE


    Additional title:

    車両接近通報装置


    Contributors:

    Publication date :

    2023-08-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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