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A New Approach to Circuit Breaker Design Using Silicon Carbide Switches - Nov 21
Mechanical circuit breakers can be low cost with minimal losses, but they operate slowly and wear out. Solid state versions overcome the problems and are becoming increasing viable as replacements at...
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Power Electronics Europe News
 
High-efficiency modules have wide input voltage for industrial and telecomms
The PKB5000W series delivers efficiency of typically 91.5% and is available in industry-standard eight-brick format. The open-frame isolated 120W eighth-brick modules feature a wide input range of 18 to 75V DC, which means that the device is also suitable for 24V or 48V telecomms systems. The industry-standard through-hole eighth-brick format, measures 58.4 x 22.9 x 9.91mm. An optional baseplate version is also available for applications that require conduction cooling. The single output units offer the nominal outputs of 3.3, 5 or 12V DC with maximum outputs of up to 30A and 120W. Maximum outputs are: the PKB5110WPI with 3.3V, 30A and 99W; the PKB5111WPI with 5V, 20A, 100W; and the PKB5113WPI with 12V, 10A and 120W. The series operates over the -40 to 110°C and provides 2250V DC I/O isolation meeting functional isolation and 1500V basic insulation safety requirements, according to IEC/EN/UL 60950-1. Other protection features are output-over-voltage protection; input-under-voltage shutdown; over-temperature protection; and output short-circuit protection. The module also has remote sense capability, which can be used to compensate for up to 5% voltage drops between the output pins and the point-of-load.

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