TMR 1-1222SM

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 components used to regulate the flow of power during electricity transmission. The TMR 1-1222SM is a type of DC-DC converter designed to convert and regulate electrical power in guided commutated vehicles such as locomotives and trams. This article will discuss the application field and working principle of the TMR 1-1222SM.

Application Field of TMR 1-1222SM

The TMR 1-1222SM is an advanced DC-DC converter designed for specific types of vehicles. It is primarily used in trains and trams where guided commutation is necessary. It is capable of converting the rectified alternating current of the locomotive traction motor to a regulated DC power in the isolated galvanic circuit. This DC power can be used in train systems such as the LED lighting, the passenger information system, the air-conditioning system, and the traction power supply.

Another application of the TMR 1-1222SM is in electric buses. It is used to regulate the current supplied by the battery to the vehicle\'s electric motor. It is also used to regulate traction current for longer bus runs. Furthermore, it can be used for battery charging, which is necessary for the operation of electric buses.

Working Principle of TMR 1-1222SM

The main component of the TMR 1-1222SM is a regulator integrated circuit, which can control switching and regulate the voltage. The voltage output of the regulator is regulated by an external pulse width modulator (PWM) or by the pulse LK of the locomotive traction motor. The converter can convert AC or DC input voltage into an isolated, regulated DC voltage. The output voltage can be controlled through either a PWM input signal or a potentiometer.

In addition, the TMR 1-1222SM is equipped with a thermal protection system. This system monitors the operating temperature of the converter and provides protection against thermal over-loading. If the converter\'s temperature exceeds a certain threshold, the thermal protection system will shut down the converter and display an error message on the display.

The TMR 1-1222SM also has a wide range of electrical protection features. It can detect and protect against over-voltage, over-current, reverse polarity, and short-circuit conditions. It also includes a power-good output signal that indicates when the power supply is in an acceptable range.

Conclusion

The TMR 1-1222SM is a type of DC-DC converter designed for locomotives, trams, and electric buses. It can convert AC or DC input voltage into a regulated DC output voltage. It also includes thermal and electrical protection features. Through its wide range of features, the TMR 1-1222SM provides reliable and efficient power conversion for its specific application field.

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