The invention relates to a control circuit and a vehicle lamp. The control circuit comprises: a main circuit and a proportional gear-dividing circuit or an inverse proportional gear-dividing circuit;a proportional gear-dividing module comprising a proportional gear-dividing resistor, wherein when the proportional gear-dividing resistor works normally, the proportional gear-dividing circuit provides a first control voltage for the main circuit, when any one of a short-circuit fault and an open-circuit fault occurs in the proportional gear-dividing resistor, the proportional gear-dividing circuit provides a second control voltage for the main circuit, and the first control voltage is greater than the second control voltage; and an inverse proportional gear-dividing module comprising an inverse proportional gear-dividing resistor, wherein when the inverse proportional gear-dividing resistor works normally, the inverse proportional gear-dividing circuit provides a third control voltage for the main circuit, when any one of a short-circuit fault and an open-circuit fault occurs in the inverse proportional gear-dividing resistor, the inverse proportional gear-dividing circuit provides afourth control voltage for the main circuit, and the third control voltage is smaller than the fourth control voltage. The control circuit and the vehicle lamp can ensure the safety of night drivingand give a fault warning to a driver.
本发明涉及一种控制电路及车灯,包括:包括主电路以及正比分档位电路或反比分档位电路;正比分档位模块包括正比分档位电阻;在正比分档位电阻正常工作时正比分档位电路为主电路提供第一控制电压;在正比分档位电阻发生短路故障和开路故障中的任意一个时正比分档位电路为主电路提供第二控制电压;第一控制电压大于第二控制电压;反比分档位模块包括反比分档位电阻;在反比分档位电阻正常工作时反比分档位电路为主电路提供第三控制电压;在反比分档位电阻发生短路故障和开路故障中的任意一个时反比分档位电路为主电路提供第四控制电压;第三控制电压小于第四控制电压。上述控制电路及车灯,能保证夜间行车的安全并给予司机故障警示。
Control circuit and vehicle lamp
控制电路及车灯
2020-10-02
Patent
Electronic Resource
Chinese
IPC: | H05B ELECTRIC HEATING , Elektrische Heizung / 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 |
Vehicle, vehicle lamp control device and vehicle lamp control circuit and method thereof
European Patent Office | 2020
|European Patent Office | 2023
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