ATI designs and manufactures a wide range of analog electronic products for the laser and industries. These products serve applications in medical, military, scientific, and industrial markets. ATI offers a line of diode drivers both high current and constant current applications. We have a full line of laser drivers/controllers: low noise low current, high efficiency medium current, AC input high current high efficiency; high current short pulsed, etc. Due to their high efficiencies, most of ou...(more)
DC-DC converter is a voltage converter that changes input voltageinto output fixed voltage. The DC-DC converter can be divided into three categories: step-up DC-DC converter step-down DC-DC converter and step-up and step-down converter. According to the demand, there are three types of control to choose:PWM with high efficiency has good output voltage ripple and noise; even after long time use, PFM has the advantages of small power consumption, especially when the load is small; PWM/PFM can achi...(more)
Thermistor has wide applications in many fields, and the following is about its applications of food, medical and automobile. (1) The thermistors application in food and drug field: Food and drug industries need temperature control to ensure the quality of products. In order to avoid partial or total loss of effective availability of drugs, there are a lot of drugs in transit needing accurate control of the temperature and humidity. (2) The thermistors application in medical field: Human often n...(more)
The NTC thermistor is a thermistor with negative temperature coefficient and it has high performance ceramics near theoretical density structure by using a single high purity material. Therefore, at the same time with realizing miniaturization, it also has the small fluctuation characteristics of resistance value and temperature and fast response characteristic, which can take the high sensitivity and high accuracy detection. NTC is the abbreviation of negative temperature coefficient, which ref...(more)
Thermistor is a kind of sensitive element, and according to the different temperature coefficients, thermistor can be divided into positive temperature coefficient thermistor (PTC thermistor) and negative temperature coefficient thermistor (NTC thermistor). The typical characteristic of the thermistor is sensitive to temperature, and different temperatures show different resistance values. At the higher temperature, the resistance value of PTC thermistor is larger, and NTC thermistor is lower, w...(more)
Thermistor is a kind of sensitive element. There are two kinds of thermistors based on different the temperature, which are PTC and NTC. It has a typical characteristic that it is sensitive on temperature. It shows different resistance value when it is under different temperature. When the temperature goes up, PTC is with higher resistance values while the NTC thermistor is on the opposite. But both of them belong to semiconductor apparatus. Main characteristic of thermistor a.It has very high s...(more)
The maximum temperature difference of a single-stage thermoelectric cooler with a standard can reach about 72℃. Some TEC can be stacked together by using mechanical method: the cold side surface of one TEC is installed on the hot side surface of another TEC, so the maximum temperature difference can reach 130℃. This stacking is called the cascade or multi-stage cooler layout. In general, multi-stage cooler has the shape of Pyramid, and a high level volume of TEC is smaller than the low level...(more)
More recently high-power laser diodes operating in the wavelength range of about 0.81.1 micron have been getting much attention due to their widespread applications. These lasers are used in optical pumping of solid-state lasers, such as the Nd: YAG, replacing traditional flash lamp designs. High-power laser diodes are tuned to the absorption band of the dielectric crystal resulting in much more efficient pumping of the laser rod, from which a high-power focused coherent beam of light is emitted...(more)
