Flex Power Modules recently announced the PKJ7200 and PKJ7300 series of power modules for railway rolling stock equipment. The new modules are designed for the demands of the EN 50155 standard for railway applications. They offer surge protection, power interruption and backup, a wide operational temperature range, and resistance to shock and vibration.
The modules achieve an efficiency of up to 92% at full load, which reduces power dissipation. They come in a compact half-brick package, delivering high power density and thus saving space, says the company.
The modules have a wide input range of 60 to 160 V dc to handle the multiple different voltages used on trains. As a result, according to Flex Power Modules, they can deal with harsh input voltage conditions, making it easier to cope reliably with the brownouts and transients that may occur in railway rolling stock. To protect against damage for both the modules and the devices they power, the modules provide input undervoltage protection (UVP) and output overcurrent protection (OCP), overvoltage protection (OVP), and overtemperature protection (OTP).
The PKJ7200 series offers 200 W of output power, while the PKJ series delivers 300 W. Both series provide output voltages of 12, 13.8, 15, 24, 48, and 54 V.
Olle Hellgren, director of product management and business development at Flex Power Modules, said, “Railway rolling stock places tough demands on power components, with a wide range of voltages, unpredictable variations in supply, and physically harsh conditions. The new PKJ7000 power modules provide the reliability, performance, and affordability that’s needed.”
The first two devices in the new series, the PKJ7216 and PKJ7316, are available in OEM quantities.
