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Internal circuit structure of HN911 module
Source: InternetPublisher:走马观花 Updated: 2013/01/03
The HN911 series module uses new technologies and processes to assemble high-sensitivity pyroelectric infrared sensors, amplifiers, signal processing and output circuits to form a modular circuit. It has all the functions from signal reception to control output. Connecting a transistor amplifier circuit or a monostable circuit to its output terminal can drive a relay, and connecting an optical coupling circuit can drive a triac. Latest Control Circuits Circuits
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