Power Boost - double output current at overload and short circuit

In railway-applications, a DC/DC-converter has to power frequently various load-branches. These load branches are often individually protected with circuit breakers to isolate them selectively in case of a fault. In case of such a fault (short-circuit), the DC/DC-converter must be able to source enough current to trip the circuit breaker reasonably. For this purpose, the overload and short-circuit behaviour of the DC/DC-converter is vitally important.


intreXis Power Boost - double output current

The newest intreXis 500 W DC/DC-converters have a new power-boost capability which can:

  • Source up to twice the nominal output current during startup: satisfies high peak current absorption of demanding loads during startup.
  • Source up to twice the nominal output current during a short-circuit event: trips circuit breakers reliably.
  • Source 1.5 time the nominal output power (750 W) for peak-loads up to 100 ms. 

All DC/DC-converters of our intreXis Boardnet Converter Platform are continuously overload and short-circuit proof. No overheating or damage will occur to our DC/DC-converters during any overload or short-circuit event.

Test and measurements were carried out with the 500 W DC/DC-converter, 24 V output voltage (IC303_1), to confirm the peak-power capability and tripping of various circuit-breakers. 


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About Intrexis

Power Supplies for Railway Applications

Driven by our passion for technology and performance, here at intreXis, we are constantly researching ways to develop more efficient and improved solutions for our products.That is why intreXis Power Supplies now provides the most complete portfolio for railway applications on the market today.