Energy saving control circuit capable of preventing vehicle light from being always on in case of failed switch

• Main Authors: WEI HEJIA, CHENG YIXIN, ZANG CHENTAO
• Format: Patent
• Language: Chinese; English
• Published: 13.02.2013
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY

The utility model discloses an energy saving control circuit capable of preventing a vehicle light from being always on in the case of a failed switch and belongs to the field of control technology. The technical scheme is that the energy saving control circuit comprises a driving circuit and a delayed light-off circuit, wherein the driving circuit comprises a large-power triode and two resistors; the collector electrode of the large-power triode is connected with the positive electrode of a power supply via the vehicle light switch or a contact of the vehicle light relay, and the emitter electrode is electrically grounded via the vehicle light; the first resistor and the second resistor are connected in series and then connected between the collector electrode and the base electrode of the large-power triode; and the serial connection point of the two resistors is connected with the output end of the delayed light-off circuit. According to the energy saving control circuit capable of preventing the vehicle l