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实用新型
CN209187436U 用于视力训练仪的控制电路 失效 - 权利终止

用于视力训练仪的控制电路
摘要：
本实用新型公开了一种用于视力训练仪的控制电路，包括：嵌入式的设置于视力训练仪外壳侧面的按钮(1)，设置于视力训练仪内部的电源电路(3)和设置于视力训练仪内部的中央处理器CPU(4)，还包括一个设置于视力训练仪内部的或门(2)；所述或门(2)的输入端连接所述按钮(1)和所述CPU(4)的一个输出引脚；所述或门(2)的输出端连接所述电源电路(3)的使能端，用于控制电源电路(3)的通电状态；所述电源电路(3)的输出端与所述CPU(4)的VCC引脚连接，用于为所述CPU(4)供电；所述按钮(1)连接CPU(4)的一个输入引脚，用于在按钮(1)按下时输入一个高电平，所述CPU(4)在检测到按钮(1)按下时执行当前任务。
摘要（英）：

The utility model discloses a control circuit for a visual training instrument. The visual training instrument comprises a button (1) arranged on the side face of a shell of the visual training instrument in an embedded mode, a power circuit (3) arranged in the visual training instrument and a central processing unit (CPU) (4) arranged in the visual training instrument, and further comprises an ORgate (2) arranged in the visual training instrument. The input end of the OR gate (2) is connected with the button (1) and one output pin of the CPU (4); the output end of the OR gate (2) is connected with the enabling end of the power circuit (3) and used for controlling the power-on state of the power circuit (3). The output end of the power supply circuit (3) is connected with a VCC pin of theCPU (4) and is used for supplying power to the CPU (4); wherein the button (1) is connected with an input pin of the CPU (4) and used for inputting a high level when the button (1) is pressed down, and the CPU (4) executes a current task when detecting that the button (1) is pressed down.

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