Lamp accuse protection system of signal lamp

The embodiment of the utility model discloses lamp accuse protection system of signal lamp, including zero cross detection circuit, zero passage trigger circuit, singlechip, load current detection circuitry, zero cross detection circuit is used for detecting the zero cross signal of power to output...

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Bibliographic Details
Main Authors HUANG FENGCAI, JI PEIFENG
Format Patent
LanguageChinese
English
Published 16.11.2016
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Summary:The embodiment of the utility model discloses lamp accuse protection system of signal lamp, including zero cross detection circuit, zero passage trigger circuit, singlechip, load current detection circuitry, zero cross detection circuit is used for detecting the zero cross signal of power to output signal at zero point is given the singlechip, the singlechip basis signal output control signal triggered zero point zero passage trigger circuit makes signal lamp and power intercommunication, zero passage trigger circuit includes opto -coupler ware, silicon controlled rectifier, the photic ware and the divider resistance of opto -coupler ware concatenate on the power, the control end of silicon controlled rectifier is followed the last on -state voltage that obtains of divider resistance, electricity coupling ware passes through the singlechip triggers, makes the silicon controlled rectifier switches on. Adopt the utility model discloses, can be effectively carry out current detection to the signal lamp power, it
Bibliography:Application Number: CN20162363632U