NEWS

When purchasing an infrared remote control, no matter how cheap the remote control is said by the supplier, the buyer will say that your remote control is very expensive, but you don’t know that the supplier is already selling it for nothing. Of course, this removal is a profit. Part of the reason is technical strength. Anruic infrared remote control may have some products that are more expensive than the remote controls on the market. The reason is nothing more than our Anruic’s higher investment in technical research and development. Our product remote control technology is naturally higher than other ordinary ones. The remote control is better, and the quality will be more guaranteed. Why do you say that?

Generally speaking, the structure of wireless infrared remote control has two parts:

The first part is the launch part. The main component of the transmitting part of the infrared remote control is the infrared light emitting diode. But it is actually a special light-emitting diode, but its internal material is different from ordinary light-emitting diodes, so a certain voltage needs to be applied to both ends of it to make it emit infrared instead of visible light. At present, the infrared light-emitting diodes that are widely used in the infrared remote controllers on the market emit an infrared wavelength of about 940nm, and the shape is the same as that of ordinary light-emitting diodes, but the color is different. The same manufacturer may cause wavelength instability due to poor technology when modulating and affect the signal transmission transmitted by the wireless infrared remote control.

The second part is the receiving part. The main component of the receiving part is an infrared receiving diode, which is generally round and square. In practical applications, the infrared receiving diode must be reversely biased so that it can work normally, that is, the infrared receiving diode is used in the reverse direction when used in the circuit, so that higher sensitivity can be obtained.

The reason: Since the transmitting power of infrared light-emitting diodes is generally small (about 100mW), the signal received by the infrared receiving diode is relatively weak, so a high-gain amplifier circuit must be added. In recent years, most of the infrared receiving heads have been finished products. .

There are roughly two types of packages for the finished infrared receiver: one is shielded by iron sheet; the other is plastic package. There are three pins, namely power supply positive (VDD), power supply negative (GND) and data output (VOUT). The pin arrangement of the infrared receiver varies from model to model, please refer to the manufacturer's instructions. The advantage of the finished infrared receiver is that it does not require complicated debugging and shell shielding, and it is very convenient to use like a triode. But pay attention to the carrier frequency of the finished infrared receiver when using it.