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Why Railway Industry Needs DC DC Converter?


The converter is an electrical device which converts direct current (DC) to alternate current (AC). The converter is used for emergency backup power in a home. The converter is used in some aircraft systems to convert a portion of the aircraft DC power to AC. The AC power is used mainly for electrical devices like motor, radio, lights and other devices. DC-DC power supplies (which is also called a linear converter or switching regulator) have a small solution size in order to operate and save space.

In order to produce the regulated voltage, the power supply should be able to boost up the battery voltage from as low as the battery voltage when it is higher than the required output voltage. Fully encapsulated in a metal case with an isolated baseplate the railway DC-DC converters have an industry standard. The linear the converter has many advantages, such as input to output DC insulation, buck-boost capability, and continuous output current, but it is difficult to control.

The function of any a linear converter is to meet one or more of the following requirements:


  •   To simplify with performance and safety.


  • To provide protection against overheating, short circuit and the effects of faults.


  • To match the minor load to the main power supply.


Applications:

  • Communications, automotive and industrial power systems
  • Battery chargers and USB dedicated charging ports
  • Motor controls and Industrial Automation


Electronic equipment requires a DC voltage as the supply input at various voltage levels. The AC power line or DC power is the main power inputs. Through switching regulator, the energy sources can be converted to suitable end voltages for power ICs and other devices.  With efficiencies of 93%, the new series offers the engineers the capability of using regulated AC DC power converters for multiple input voltages utilized by various industries. For linear converter without isolation, we can use this technology. If the input or the load current changes, the output voltage is constant.

 When power is low, the effect is not necessarily an issue. The linear converter offers a significant improvement in conversion efficiency and energy savings. They are utilized in the switched mode as switches that are either in the ON or OFF state. When ON, a switch drops very little voltages across it, and when OFF, it passes very little or no current. In fact, this approach makes it possible to achieve efficiencies of over 90 percent. The most modern switching regulator is efficient enough to eliminate heatsink.

railway dc dc converters


Multilevel converter:

Now a day’s a lot of manufacturing applications have begun to need high power. Some appliances in the industries, however, require low or medium power for their operation. Using a high power source for all industries may prove beneficial to some motors requiring high power. Some medium voltage motor applications require medium voltage. The multi-level converter is like a converter and it is used for industrial applications as an alternative in high power and medium voltage.

The need of multilevelrailway DC-DC converters is to give high output power from medium voltage sources such as solar panel, capacitors, and batteries. The multilevel converter consists of several switches. In the multilevel converter, the arrangement switches are very important.

Bottom Line:

Cost, size, and power are all important factors when choosing a power supply. The output current is one such area that affects every component in the power supply. Some effects are obvious while others are easily overlooked and cause immediate or long-term issues. The user should consult with the power supply manufacturer to understand the risks of the particular converter.


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