CONTROL CIRCUIT FOR FULLY AUTOMATIC AUTOMOBILE SUNSHADE

摘要

The invention provides a control circuit for a full-automatic automobile sunshade. The control circuit comprises a command receiving circuit used for receiving an external control signal, processing the signal and feeding back the signal to a micro processor. The control circuit also comprises a power supply circuit, a voltage detecting circuit, an unfolding limiting switch, a tightening limiting switch, a first motor, a second motor, a first motor driving circuit and a second motor driving circuit. The control circuit for a full-automatic automobile sunshade has a compact structure; by arranging the micro processor and other circuit components, the unfolding and tightening of the sunshade can be automatically achieved; the labor intensity is greatly lowered; meanwhile, it is convenient to use, and the circuit system is reliable and durable.

主权项

1. A control circuit for a full-automatic automobile sunshade, characterized by comprising a command receiving circuit used for receiving an external control signal, processing the signal and feeding back the signal to a micro processor,
a power supply circuit used for supplying power to the command receiving circuit and the micro processor, a voltage detecting circuit used for sampling battery voltage, filtering the battery voltage and sending the battery voltage to the micro processor, an unfolding limiting switch triggered when the sunshade is unfolded to an extreme position and used for sending a signal to the micro processor, a tightening limiting switch triggered when the sunshade is tightened to an extreme position and used for sending a signal to the micro processor, a first motor used for driving the sunshade to unfold or tighten, a second motor used for vacuumizing the air from a sunshade suction disc, a first motor driving circuit used for receiving a signal sent by the micro processor and controlling the first motor to rotate positively, rotate reversely or stop, and a second motor driving circuit used for receiving a signal sent by the micro processor and controlling the second motor to start or stop.