Five factors affecting the operation of the LED infrared receiver (infrared remote control receiver amplifier)
❶ adhesive; ❷ bracket; ❸ colloid; ❹ photosensitive chip (PD); ❺ wire; ❻ IC chip
1. There are two chips inside the LED infrared receiving head, one IC and one PD, the IC is used to decode the amplified signal, and the PD is used to sense the infrared light. When the receiving head IC chip does not match the decoding IC used by the customer, there will be a large amount of non-functionality or low sensitivity during batch use.
2. The standard pulse width of the LED infrared receiving head is 600us. The signal received by the infrared receiving head cannot be synchronized. When there is a phenomenon of lead or hysteresis, the infrared receiving head will be insensitive.
3. The LED infrared receiving head will be affected by light from incandescent lamps, fluorescent lamps, energy-saving lamps and sunlight, which will affect the use of the infrared receiving head.
4, part of the electromagnetic wave will also interfere with the infrared receiving head, the more common is the interference of the fluorescent lamp ballast.
5. After the customer replaces the product plan or updates the program, if the receiver supplier rematching plan is not notified in time, it will affect the use of the product.
To sum up the above: When applying for samples, customers must explain the working principle, decoding scheme, and usage environment of the product to provide the best product solution.