Electronic door lock control circuit
Source: InternetPublisher:消失的歌 Keywords: Control circuit door lock transmitter Updated: 2020/07/06
Circuit operation principle: The door lock circuit consists of an infrared transmitter and a receiver with a relay drive circuit
. Figure 5-3a is a small transmitter circuit, which is
powered by a 6V battery. In the picture, two CR2032 lithium button batteries are used. S. It is the trigger switch
, and the Zener diode ZD. Constructing a traditional parallel voltage regulator circuit, R3 limits
the operating current of the indicator LED.
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