2015年2月26日星期四

New Pakistan Distributor Joins Us!

The Connection from Pakistan becomes a new distributor of our company. Welcome!!
Till now, we have totally three global distributors worldwide and we are still looking forward to being joined by companies from many other countries, such as Australia, Austria, Belgium, Brazil, Canada, China, Cyprus, Denmark, England, Finland, France, Germany, Iceland, India, Israel, Italy, Korea, Malaysia, Netherlands, New Zealand, Northern Ireland, Norway, Republic of Ireland, Scotland, Singapore, Spain, Sweden, Switzerland, Taiwan, Thailand, U.K., United States of America, Vietnam, Wales...

If you love our products and like to promote our products in your country, please do not hesitate to email us or give us a call. Let's work together!For more information, please visit our website:http://www.analogtechnologies.com/tec-controller.html

What are the requirements of Laser Diode Drive

When it comes to diode laser power supplies, there are certain things that need to be kept in mind to avoid any issue. Laser Power Supplies have some requirements as well that need to be kept in mind to avoid any problem. In this blog, we will come to know some main requirements of Laser Diode Drive. If you curious to know about it, you are at the right place.
Requirements of Laser Diode Drive:
1. Current regulation is one of the important aspects of laser power supplies. It is efficient enough to give an accurate result that can help you perform certain tasks without any fear. Optical power output of laser diode increases with the decrease in temperature. This ensures that you can perform the right task at the right point of time. This means without any optical feedback, laser diode switched on and can be easily adjusted as per the current room temperature. Current is set up once the laser diode has warmed up. It commonly blows out when it gets switched to the room temperature. There is no optical feedback as per the regulation.
2. Absolute current limiting. It comprises immunity to the power line transients along with those that may occur while power on and power off. There are certain parameters of several electronic parts such as ICs are hardly assigned while charging input power. Particular laser diode driver chips can be found with such requirements.

Analog Technologies offers some of the advanced and quality Laser Power Supplies. Those who are seeking them can review some products. When it comes to seeking electric items or parts, you have to be very attentive and review various things. This can give you a good idea for the selection process. The knowledge is always useful to get the right thing at the right point of time.For more information, please visit our website:http://www.analogtechnologies.com/laserdriver.html

2015年2月24日星期二

Thermoelectric Cooler Controller Design Made Simpler

This article is from Photonics Magazine. TEC controller design experts from Analog Tehcnologies, Inc offer tips to lower the cost and simplify the design of the devices, and to increase their ease of use.
Thermoelectric cooler (TEC) controllers are becoming more prevalent in thermal management designs because they can drive a thermoelectric cooler to stabilize the temperature of laser diodes or passive components used in communications equipment.
TECs have several advantages for temperature regulation: high accuracy and stability, fast response time, a wide set-point temperature range, and a simple structural design with no moving parts. Also, they are small and lightweight, reliable, noise-free and environmentally friendly. However, when comparing with temperature regulation approaches based on heat sinks or compressors, for applications requiring especially high thermal power output, TECs may have certain shortcomings: low efficiency, low thermal power, high cost of both TECs and controllers, and complex controller designs.
Figure 1. Thermoelectric coolers (TECs) are highly accurate and stable for temperature control, with a wide set-point temperature range and a simple packaging design with no moving parts. They are small and light, highly reliable, noise-free and environmentally friendly. Here, a structural diagram of a TEC.

Cold/hot sides and +/- terminals
In 1834, French physicist Jean-Charles Athanase Peltier found that the junctions of dissimilar metals are heated or cooled depending upon the direction in which an electric current passes through them. This effect became the Peltier effect.
A TEC has two ceramic plates with Peltier elements sandwiched in between. Based on the Peltier effect, these elements produce heat and cold by injecting an electric current through them. All the Peltier elements are connected in series; the first and last are each connected to a separate wire terminal. The plate on which the two terminals are mounted is often called the hot-side plate or simply the hot side; the other side is designated the cold-side plate or the cold side. The two sides are symmetrical in terms of thermal functionality, but the thermal load of the side with the terminals is a little higher because of the wire leads.
A DC current is injected into the TEC through the two terminals, and this generates a temperature difference between the two plates: One plate becomes cooler, while the other side becomes warmer.
When the cold side cools down, the TEC terminal connecting the positive lead of the power supply is designated as the plus (+) terminal, or the positive lead of the TEC; the other is designated as the minus (-) terminal, or the negative lead. As the DC current reverses direction – i.e., flows out from the plus terminal – the cold side will heat up and the hot side cool down. Therefore, TECs can be used both for cooling down and heating up the thermal load.

TECs can’t “generate” cold; they only move heat from one side to the other. They “produce” heat more efficiently than cold under the same size or current conditions because not all of the electric energy of the DC current is used for removing the heat; some energy is consumed by the Peltier elements and converted into heat, which is conducted to the two sides of the TEC at the same time. This heat boosts the heating-up power of the TEC but makes the cooling-down function less efficient.For more information, please visit our website:http://www.analogtechnologies.com/tec-controller.html

The Resistor Kit makes the usage of resistors convenient

Resistors can be kept in akit for the convenience of the user. There comes a lot of variety of resistor kit. One can choose one of the varieties for one’s convenience.One can select one of the resistor kits with many compartments with corresponding  value inside.These compartments make it convenient for the user to pick one of the parts that is necessary. The division of the kit makes the picking of the parts you need simpler.
The convenient resistor kits are good for perf boards.For advanced electronic needs, these are themost convenient for the beginners who has to fix resistors in perf boards.The material is heat resistant and stores the resistors in different labels with different values. It is the most convenient for usage in different electronic components.

The resistors are stored in the kit with different value which is the most convenientaspect of using this kit. As the values are written in the human readable format, one can easily select the parts from the kit. With different variety of resistor kit, there comes the kit with many enclosures.The enclosures are easy to operate. One can choose one of the convenient varietieswith enclosureto easily find out the resistors of different value.For more information, please visit our website:http://http://www.analogtechnologies.com/tec-controller.html

2015年2月8日星期日

TEC Controllers

The principle of TEC control is called Peltier Effect, which was discovered by Jean Charles Athanase Peltier in 1834. Briefly speaking, it reveals that fact when a current is passed through a couple, a temperature difference is created between the two sides of the thermocouple. TEC (Thermo-Electric Cooler, or Peltier Cooler) is a semiconductor device which can cool down or heat up the temperature of a thermal load depending on the direction of the current going through the two terminals of the TEC. By using a TEC controller, the thermal load temperature can be regulated precisely by controlling the direction and magnitude of the current going through the TEC. TECA1-XV-XV-D series TEC controllers features high efficiency, high stability, high reliability and compact sizes. The maximum current is 2.5A. They are often used for controlling temperature in laser systems. Many of these TEC controllers work well with our TEC Modules, Thermistors and Thermally Conductive Epoxy. You can always find best quality TEC Controllers offered by Analog Technologies Inc., which are efficient, cost effective and long lasting. Analog Technologies offers good quality of TEC Controller at reasonable prices. I believe you can benefit a lot from our products. A number of TEC Controller is available to select so you have more choices.For more information, please visit our website:http://www.analogtechnologies.com/tec-controller.html

The Definition of Low Niose Amplifier

The Definition of Low Niose Amplifier_Manufacturer of Thermistors, Laser drivers, Resistor kits, Smt capcitor kits & Tec controllers
As it is known to all, some very low frequency noise (0.1Hz to 10Hz) can’t be measured by oscilloscope, so we design a circuit to amplify these low noises to make sure noise value can be common figures which has been given in amplifier datasheets. As this circuit designed to amplify the low frequency noise, we achieve this function ranging from a 0.1Hz second order high pass filter to a 10Hz forth order low pass filter. As the internal noise of amplifier will also influence the testing result, we will try to reduce itself noise coefficient to improve the output ratio of signal power vs. noise power.
Ideal amplifier noise coefficient is F = 1 (0 db), and its physical meaning is that the output ratio of signal power vs. noise power is equal to the input ratio of signal power vs. noise power. A well-designed low noise amplifier FN can reach < 3 db. When testing low noise figure, use temperature (Te) as amplifier noise performance metrics: Te = T0 (F – 1). Here, unit of noise coefficient and noise temperature are both kelvin (K) when it is under ambient temperature.
The signal that circuit received is very weak, so the low noise amplifier has to achieve the function of amplifying small signal. Besides, due to the influence of strong signal interference in the transmission path, the strength of the noise will change also. Therefore, the amplifier needs to have a large enough linear range and gain can be adjusted..For more information, please visit our website:http://www.analogtechnologies.com/thermistor.html

2015年2月5日星期四

The Features of Laser Drivers

Analog Technologies Inc., a company established in 1997, focuses on designing high efficiency laser and TEC drivers/controllers, SMT resistor/capacitor/inductor kits, TEC modules, thermistors and other electronic products, has now become the world’s famous laser products manufacturer. All these products have been widely used in the production of electronic appliances, military, integrated circuits, computers and other fields. We have customers all over the world. Some of our customers in the USA include: NASA, US Army, Air Force, TI, Intel and we also have customer with military projects in other countries. Analog Technologies has very strong research abilities, and this R&D team is ready to work on your special requests. Analog Technologies offers good quality laser diode drivers with high stability, low noise, and/or high power efficiency. These are some of the functions diode laser drivers: laser current setting and monitoring, control loop good indication, driving mode indication (for dual mode versions), stand-by, and shut down. Due to their high efficiencies, most of our laser drivers/controllers can work without heat sinks. In addition, our laser drivers/controllers have complete metal shielding, which presents the laser drivers/controllers and other electronics from interfering from each other. 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. Every product from Analog Technologies is strictly examined before it is put on to the market. Analog Technologies is with the hope and confidence to produce the world’s class products. In order to give satisfying services to international customers, our company has qualified technicians and engineers providing in-time and effective pre-sale, sale and after-sale services. Analog Technologies focus on advanced analog technology and electronic products for more than seventeen years and we are your most reliable supplier. We believe we can use our technology and experience to work with our customers and help them achieve the success. A number of diode laser drivers are available to select so you have more choices. Please visit our website to find the products that suit you most.For more information, please visit our website:http://www.analogtechnologies.com/laserdriver.html

The Most Obvious Features of NTC Thermistors

NTC is short for Negative Temperate Coefficient. Resistance is varied with the temperature change, and its resistance will decrease when the temperature rise and vice-versa. For example, the resistance is 50kΩ when it is at 25℃, while the resistance may be only 40kΩ when it is at 50℃. It is theory on the technical level, hard to explain. However, there is an example in our life. It is much easier to understand. This feature of thermistors can be widely applied in real life. Absolutely, every family has at least one electric cooker. When the rice is done, the cooker will keep warm automatically. How does it work? That is, when the temperature gets high in the cooker, the resistance of the thermistor in the electric cooker will decrease. With current changing, the cooker will switch from heating state to keeping warm state automatically.For more information, please visit our website:http://www.analogtechnologies.com/thermistor.html

2015年2月4日星期三

Get A Reason on Why Use TEC Controller for Your Devices

The thermoelectric Cooler that is found in many electronic appliances requires precision temperature control. Reason being why TEC controllers are used and are must to maintain in order to keep a watch on temperature variation. Critical components that are controlled by temperature are integrated with a temperature monitor and are tied up into a single thermally engineered module.
 
Thermoelectric coolers can also heat by passing reverse current and therefore it is quintessential to implement TEC controllers such that a small variation in the flow of current can be monitored and recorded. Smaller size of TEC’s allow precision thermal control of individual components that are used, which may include precision voltage references, fiber-optic laser drivers, or any temperature-critical device. TEC will always be an essential element for precision thermal control applications. The performance by TEC controllers makes them a more attractive solution for a growing range of temperature-control applications.
 
Practical uses of this device help it in gaining wider acceptability and adoptability in various fields. TEC controllers have begun finding space in almost every essential electronic goods, thus protecting them from uncertain rise and fall in electric current. These devices are extremely important and effective and are capable even to replace vapor-cycle refrigeration devices used to heat and cool homes.
 
TEC modules are used in optical communication systems. It features greater with 90% efficiency and relatively much lesser noise. It supervises real temp monitoring, temp lock indication, current limit, and switching frequency and phase changeability. Used almost in every kind of appliances to save those from damage and protect during current variation makes TEC controller an important element in their manufacturing. You can always find best quality TEC controllers offered by Analog Technologies Inc, which are efficient, cost effective and long lasting. For more information, please visit our website:http://www.analogtechnologies.com/tec-controller.html

Reduce Risk of Burning Electronic Equipments with NTC Thermistors

Thermistors are temperature- sensing elements. They are made up of semiconductor material and are largely used in electrical parts and electronic items. The materials used in thermistors manufacturing are capable of indicating large changes in resistance in proportion to small changes in temperature. Thus thermistors are regarded as highly incredible tool to measure accurate drop and rise in temperature. The sensitive materials used can measure even the slightest change in resistance and temperature.
 
NTC Thermistors are non-linear resistors. They are radial leaded discs or similarly assembled in order to provide high performance with durable result. The resistance of this kind of thermistor decreases as there is a rise in temperature. The resistance through the thermistor can be measured by passing small and measured direct current, which also predicts drop in the voltage. Significant uses of NTC thermistors can be as follows:
 
NTC thermistors are generally designed to protect other electronic components from a high and sudden inflow of current.
These high performance NTC thermistors are known to work well with devices like TEC controllers, and TEC modules.
NTC thermistors are designed in a way so that it is capable of building a high stability low drift temperature control system.
The NTC thermistors are mainly glass coated, which make them the most sensitive, precise and low drift sensors.
NTC thermistors have proven to be extremely reliable and inexpensive.
NTC thermistors are essential and their presence is critical for the protection of electronic components within any product that has a circuit.
 
The selection of NTC thermistor should be dependent upon the application of the gadget and maximum continuous current that results due to voltage. The range of thermistors available with Analog Technologies is made out of good quality material and can be efficiently used for your daily requirement.For more information, please visit our website:http://www.analogtechnologies.com/tec-controller.html

2015年2月3日星期二

Parameters of Low Noise Amplifier

Parameters of amplifier noise performance can be reflected by these two most important factors, one is voltage noise and the other is current noise.
Voltage noise is the voltage fluctuation on the condition that the input of amplifier is short circuit and without any surrounding noise. While for current noise, current noise is input current fluctuation when the input of the amplifier is open circuit and without any surrounding noise.
The typical indicator for noise amplifier is the noise density. As it is known to all, the unit of voltage noise density is nV/, and the unit of current noise density is pA/. Voltage noise includes broadband noise and low frequency noise. Broadband noise belongs to the noise which is with a flat noise density curve. In addition, amplifier also has low-frequency noise zone, and which is with a not flat noise density curve. Besides, we also name it as 1 / f noise, flicker noise, and low frequency noise.For more information, please visit our website:http://www.analogtechnologies.com/tec-controller.html

Review of TEC Controller

TEC Controllers cater services for a number of applications. They are useful in many ways can be easily employed for perform multiple tasks. To know about TEC Controller, you can check out its characteristics and power classes. They can give you a good idea to perform several tasks comfortably and achieve the best outcome.
 
Most of the TEC controllers are members of digital TEC family. The comprehensive firmware and powerful microcontroller offer various features. Analog Technologies is one of the legitimate companies providing various features in TEC controllers. A wide range of TEC controllers are available with the company to choose from. You can simply review some of them and make a right selection. This can help you get the exact thing depending on your needs.
 
TEC controllers are the perfect complement to the latest generation laser diode drivers. They not only work according to the requirements of the equipment but also ensure that no fault occurs at any point of time. It is important to review different types of TEC controllers and pick the right one that suits your device. This is an essential part to get the actual outcome that meets your specific needs. So, go for some suitable options and select any suitable TEC controller that meets all your demand. It can help you get the exact thing that you are looking for.For more information, please visit our website:http://www.analogtechnologies.com/tec-controller.html

2015年2月2日星期一

Uses of Laser Diode Drivers

When it comes to laser diode drivers, there are certain things that need to be kept in mind. For the driving of laser diodes, special types of driver circuits are employed. They can work in 2 ways. Firstly by producing constant regulated voltage and secondly by producing constant current driven through the LD load. Both the methods are extensively used to work the driving of laser diodes. For an improved result, it is essential to do the required functions in a right sequence. This can ensure to give better outcome and then you easily rely on the diode laser drivers.
 
ATLS2A201D
 
The 2nd type can be designed easily instead of first one. Use different types of circuits for their execution. The main DIY circuits are based on the LM317 chip. Various kinds of constant current drivers are also available in the market to choose from. They are designed by professionals. So you do not need to worry about the quality aspect. However, it is important to take care of the all precautions to avoid any problem. When you have all possible info about the diode laser drivers, it would be convenient to employ the circuits in a better way.
 
Analog Technologies offers good quality of laser diode drivers at reasonable prices. They are available easily and you can get them with minimal efforts. Simply go through the available choices and checkout them thoroughly. Get a good idea and pick the suitable one depending on your needs. Ensure that you consider a wide range of driving currents. Also make sure to choose easy to regulate and design drivers. They give optimum result and work with no trouble for a longer period of time. In case more current is required, small schematics changes can be done. They ensure to also provide better outcome. A number of diode laser drivers are available to select so you have more choices.For more information, please visit our website:http://www.analogtechnologies.com/resistorkits.htm

Purchase Useful Resistor Kits Online

If you are looking for resistor kits, there is no need to worry as its wide range is available in a number of stores. But these days, people do not have enough time to seek such types of products in the market. They want short cuts to save their valuable time. This is the reason why online shopping has become the best way to buy products.
 
Resistor kits are provided by the leading manufactures as well via the internet. They have specific websites for selling their products. For more choices of different companies’ products, you can also access some e-commerce websites. They list Resistor Kits of wide range with different verities. Buy Resistor Kits at reasonable prices and make most of them.
 
Before selecting any resistor kits ensure to examine its features. Make sure to compare different products that can give you so many choices. When you have more options about Resistor Kits, it would be easier for you to select the best product. Analog Technologies is one of the suitable companies that offer reasonable priced and featured electronic products. Among a number of resistor kits, you can review different verities. Just go for some useful tool pack of resistor kits. Make sure to pick the relevant one as per your needs.For more information, please visit our website:http://www.analogtechnologies.com/resistorkits.htm