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Led Sensor Design Principles And Characteristics

By Author: popp
Total Articles: 9

POPP LED Sensor light is actually an automatic switch control circuit, the type of sensor lights are: switch closed (ie, turn on the lights) are “voice control”, “trigger”, “sensor”, “light control” The way is roughly the same, controlled by a delay circuit (which automatically turns off after a period of work).

Infrared sensor switch the scope of the human body Suitable for corridors, corridors, warehouses, garages, basements, toilets and other places of automatic lighting, ventilation and other purposes.

working principle

In daylight or strong light environment, the signal value detected by the light sensing module will control the entire light in a locked state, even if someone passes through the LED body sensing light and will not turn on the light. In low light or night, light sensing module will detect light efficiency value, will turn on the sensor light on standby, while the human body infrared sensor module also started. If the body’s infrared thermal sensing module senses the movement of the human body in its range, an electrical signal will be generated, the signal will cause the delay switch module to turn on the light, the LED light bead will be on and the delay switch has a setting within 60 seconds Value, if people continue to be within the sensing range, LED human sensor light is always on, when the human left, the human body sensing module did not detect the human body infrared, there is no signal to the delay switch, in about 60 seconds , LED human sensor light will automatically shut down. At this time, each module is on standby, waiting for the next work cycle.


1, based on infrared technology, automatic control products, when someone enters the switch sensing range, the sensor detects the human body infrared spectrum changes, the switch automatically connected to the load. People do not leave and in the activity, the switch continues to conduct; people leave, the switch delay automatically turn off the load, people to lights, people from the lights out, cordial and convenient, safe and energy saving.

2, with zero-crossing detection: non-contact electronic switch to extend the service life of the load.

3, the application of photosensitive control, automatic metering switch, strong light does not feel.

Add: No.8 Danxia Road,Yongan Industrial Area,Xianju,Taizhou City,
Zhejiang Province,China
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