Flex Power Modules PKM7-W series quarter-brick DC-DC modules
Flex Power Modules announces the PKM7500W and PKM7100W, two new series of quarter-brick modules for powering railway rolling stock equipment
Flex Power Modules announces the PKM7500W and PKM7100W, two new series of quarter-brick modules for powering railway rolling stock equipment. The 50W PKM7500W offers an extremely wide input voltage range of 12V to 160V, while the 100W PKM7100W has an input range of 14V to 160V. This wide input voltage range means that equipment designers can use just one DC-DC converter for products intended for use anywhere in the world, which makes installation, qualification and aftermarket support easier. Equipment for use in railway rolling stock must meet a wide range of standard input voltages, which varies from country to country. Previously, therefore, manufacturers would have to create at least two variants: one designed for lower voltages such as 24V, 36V and 48V, and another for higher voltages such as 72V, 96V, and 110V. These nominal voltages are defined in the EN50155 standard, which also sets requirements for handling voltage dips and spikes. This means the lowest voltage a 24V-based system must deal with is in fact 14.4V, and the highest voltage for a 110V-based system is 154V.
- Fully encapsulated designs in most cases
- Ultra-wide 4:1 and 8:1 input ranges
- Meets IEC/EN/UL62368-1 (previously 60950-1)
- Isolation voltages from 1500V to 2250V
- MTBF figures up to 8 Mhrs
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