TEC 2-1221WI

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DC/DC converters are commonly used to adjust the input voltage of a load, while maintaining its output voltage characteristics and providing isolation from the input power source. The TEC 2-1221WI is one of these converters, specifically designed as an off-line programmable input voltage regulator and high-power DC/DC converter. The unit is based on the use of the thyristor or SCR (silicon-controlled rectifier) or another form of semiconductor switching device to progressively increase or decrease the current in a circuit. This variable current is then used to control the output voltage.

Features and applications

The TEC 2-1221WI is designed primarily for three phase input voltage regulation and power distribution but can be used in other applications, such as AC motor speed control, belt tension control, cable trolleys, and roller-blind control. The device is suitable for a wide range of applications and is robust enough to remain reliable throughout its operating life. This makes it ideal for use in industrial and commercial applications, including in distribution systems, chemical and food processing, and nuclear energy production and control.

The TEC 2-1221WI offers a range of features, including: a wide input voltage range (85-240VAC); a wide input frequency range (45-70 Hz); maximum efficiency of up to 82%; and adjustable output voltage (controllable with a +/- 10% frequency accuracy).

Working principle

The TEC 2-1221WI works on the principle of “phase control”. This means that the incoming AC voltage is converted into DC voltage, which is then converted into several stages of DC voltage levels. These stages are then compared to the set voltage of the device, and if the voltage is different, the device adjusts the power through the control stages. This allows the output voltage to be optimally matched to the application.

The TEC 2-1221WI uses combinations of three IGBT (Insulated-Gate Bipolar Transistor) pairs, in order to produce the required output voltage. Each IGBT is connected to a gate-turn-off diode and a charge-pump circuit to control the output voltage. The charge-pump circuit is used to provide a minimum voltage level, which allows the IGBT to be turned on and off in order to maintain the output voltage level within the required range.

Conclusion

The TEC 2-1221WI is a versatile programmable input voltage regulator and DC/DC converter designed for use in a variety of industrial and commercial applications, such as power distribution, chemical and food processing, and nuclear energy production and control. It is based on the use of IGBTs, turn-off diodes, and a charge-pump circuit to facilitate accurate and reliable regulation of the output voltage. This makes it an ideal choice for applications where reliable on-demand output voltage is essential.

The specific data is subject to PDF, and the above content is for reference