Control circuit for automobile rear fog lamps
Control circuit for automobile rear fog lamps
A control circuit for automobile rear fog lamps comprises a rear fog lamp output unit, a control unit, a lamplet input unit, a front fog lamp input unit, a high beam input unit and a low beam input unit. The positive pole ends of diodes of the front fog lamp input unit, the high beam input unit and the low beam input unit are connected with a front fog lamp signal, a high beam signal and a low beam signal respectively, and the negative pole ends of the diodes are connected with a seventh pin of a control unit. The lamplet input unit comprises an audion Q1 and a first diode, and an emitter of the audion and the negative pole end of the first diode are connected with a third pin of the control unit at the same time; the positive pole of the first diode is connected with a lamplet signal, a collector of the audion is connected with a sixth pin of the control unit, and a base of the audion is connected in series with a second resistor and then connected with a fourth pin of the control unit. The two ends of a coil of the relay switch of the rear fog lamp output unit are connected with the third pin and the fourth pin of the control unit respectively. Contacts of the relay switch are connected with the positive pole input end of a power supply and the output ends of the rear fog lamps respectively. The control circuit is simple, safe and reliable, the cost is low, and the requirement of new regulations of operation states of the automobile rear fog lamps in national standard GB4785-2007 can be met.
Document information
Control circuit for automobile rear fog lamps
2015-12-23
Patent
Electronic Resource
English
| 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 |
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