LED is the abbreviation of light emitting diode, which is a solid light emitting device of semiconductor. Using light emitting materials of solid semiconductor chips, carriers in semiconductor will composite, cause photon emission and produce light, when the two ends of LED are with forward voltage. LED can directly emit red, yellow, blue, green, green, orange, purple and white light.(more)

One of the attractive features of thermoelectric technology is that it offers an incredible degree of control ability. With a properly(more)

SNR (SIGNAL-NOISE RATIO) refers to the ratio of signal and noise which is in an electronic device or electronic system. The electronic signals come from external device and need to be processed through the equipment, and the noise is additional signal without rules and does not exist in the original signal, and this noise does not vary with original signal.(more)

At present, there are many kinds of heat sinks, including natural convection, forced convection and liquid cooling. The natural convection radiator can be used in the small power condition, especially when the working current of small thermoelectric coolers is less than 2A. But for most application conditions, natural convection radiator cannot meet the requirement that all heat need to be exhausted, then we need to use forced convection radiators or liquid cooling radiators.(more)

Today I want to introduce the definition of Laser driver. The laser driver, as the name suggests, it is the instrument of the laser control. Generally used to control the semiconductor laser. Including temperature controller and laser diode drive. It is necessary to control the temperature of the device because of the semiconductor device sensitive to temperature, and the semiconductor laser with a constant current source drive, usually it require a current source. The following is the figure of physical photo of our products.(more)

Some low or medium heat transfer, which needs complex temperature control process, thermoelectric cooler can provide great help. And in certain cases, it is the only choice. Although no refrigeration is universal and thermoelectric cooler cannot be applied in all fields, compared with other cooling devices, thermoelectric cooler (see Fig.1) has a lot of advantages.(more)

In the car field, there is no enterprise specializes in the production of LED lamps. Only a few optoelectronic industries do the research and development in this area. The development bottleneck of domestic LED automotive lamps mainly comes from the following there aspects:(more)

In 1834, Peltier, a French physicist, found that through DC electricity one node becomes cold and the other one get hot in the closed circuit which is composed of two different metals. This effect was later named as the Peltier effect. Another name of TEC is Semiconductor refrigeration which is a kind of refrigeration method by taking advantages of the Peltier effect. The principle was shown in Figure 1. TECs consist of semiconductor thermoelectric elements (Ntype, Ptype), the metal flow deflector, ceramic disk, wherein the flow deflector is connected with the node of semiconductor thermoelectric elements. (more)

Except for being applied in the field of the refrigerator, water dispensers and other household appliances, the most important application of TEC is in the information technology field. As the cooling source of such electronic components as infrared detectors, lasers, computer chips and so on, generally, the cooling power of these devices is very small. (more)

After Edison invented the carbon incandescent lamp in 1879, lighting technology entered a new era. Reviewing the lighting history of the twentieth Century, people found out many new light sources, such as fluorescent lamps, mercury lamps, high/low pressure sodium lamps, metal halide lamps, compact fluorescent lamps, high frequency electrode less fluorescent lamps, microwave sulfur lamps and so on. Defects of the incandescent lamp are that the bulb is fragile, and it is easy to get an electric shock and power consumption of the tungsten wire is high under the condition of heating. Although fluorescent lamps save more energy than incandescent lamps, but it is not good for human vision and the mercury in the lamp tube is harmful to human body and environment. LED causes qualitative changes of lighting technology. Compared with the traditional lighting technology, LED is a semiconductor, which can convert electrical energy into visible light. LED belongs to the solid cold light source. The volume of LED is small, its weight is light and the structure is also very solid. Because of low working voltage, service life of LED is long. In accordance with the definition of light effect, LED luminous efficiency is not high, but because almost all of the LED spectra concentrate in the visible light spectrum, the efficiency can reach 80%~90%. However, visible efficiency of incandescent lamp of the same light effect is only 10%~20%. Generally, the power of the monomer LED is 0.05~1W and LED can meet different needs through the cluster mode.(more)