| 摘要 |
A control circuit for a fully automatic automobile sun-shading, comprises a command receiving circuit for receiving an external control signal, processing the signal and then feeding the signal back to a microprocessor, and also comprises a power supplying circuit, a voltage detecting circuit, an extension limiting switch, a contraction limiting switch, a telescopic motor, a vacuumizing motor, a telescopic motor driving circuit and a vacuumizing motor driving circuit. The structure of the control circuit is compact in structure, and by arranging the microprocessor and other circuit components, the extension and the contraction of the sun- shading can be automatically achieved, the labor intensity is greatly lowered, meanwhile the utilization is convenient, and the circuit system is reliable and durable. |
