Continued from the last article From the performances of the Peltier controller , it comes with many interface ports for users to set the required object temperature, the maximum output voltage and current. There is a compensation network, which can match with thermal load and stabilize the temperature control loop. By using the Peltier controller, many functions can be realized, such as measuring and monitoring the temperature, obtaining the thermistor T-R curve linearization and so on. Our com...(more)
ATEC24V10A1 is a kind of Peltier controllers, which is designed and produced by Analog Technologies, Inc .(ATI). ATEC24V10A1Peltier controller has high output voltage (24V) and high output current 10A. This Peltier controller has high temperature stability, high efficiency and long service lifetime, so that it can be widely used to regulate target temperature precisely by controlling the current across the TEC . The following is the physical photo of ATEC24V10A1Peltier controller. Figure 1. The...(more)
ATW3A314 is the part number of an ATI Peltier controller , which is designed for monitoring and controlling the actual objet temperature. ATW3A314Peltier controller has high efficiency, compact size and high stability. Besides monitoring and controlling the temperature, this Peltier controller can also be used to switch frequency synchronizedto an external signal. The photo followed is the physical photo of an actual ATW3A314Peltier controller. Figure 1. The photo of an actual ATW3A314 ATW3A314...(more)
Thermistor is a semiconductor component whose resistance changes significantly with the change of the (sensed) temperature. Its called NTC thermistor when its resistance decreases when the temperature increases. NTC thermistor is widely used in home appliances. There are some main parameters for NTC thermistor: 1. Self-heating: When we measure or use NTC thermistor, there is always a current going through it, and this current heat up the thermistor. When self-heating occurs, the resistance of NT...(more)
Continued from last article 2. Zero Power Resistance: Zero power resistance is the most basic parameter of NTC thermistors. The resistance given by the manufacturer belongs to zero power resistance. However, zero power confuses some customers since zero power doesnt exist in physical meanings. Actually, the change of the resistance caused by self-heating can be neglected when comparing with the total measurement error. Generally, the zero power measurement of NTC thermistor is made in thermostat...(more)
ATEC24V10A1 is a Peltier controller with high output voltage (24V) and high output current (10A), as shown in Figure 1. ATEC24V10A1Peltier controller is designed and produced to drive high power TECs ( thermo-electric coolers ). It has high efficiency(more than 98%) and high temperature stability (0.01C). This Peltier controller has a wide input voltage range, so based on the voltage signal, it can set the output current limit and the set-point temperature that can be programmed externally. Figu...(more)
Thermal electric cooler ( TEC ) is a Peltier module, which has the capacities of heating and cooling at the same time. As TECs have many advantages such as no moving parts, no noise, and environment friendly, etc, they have been widely used in many fields. Take the laser system for an example. TEC can ensure the laser system works at a constant temperature so that the lasers will output a laser beam with stable wavelength, constant power and low optical noise. In order to use TECs better, our co...(more)
NTC thermistors are widely used in temperature measurement due to its low cost and characteristics that the resistance changes with the temperature. Generally, use a NTC thermistor and a precision resistor in series. The resistance change of NTC thermistor is indicated by voltage change, which can enter into the A/D input port of comparator circuit or SCM. Amplification is not necessary, and the circuit is very simple. Besides proper R value and B value, it should take consideration of measuring...(more)
