EKF: in-line board mount uninterruptible power supply

EKF presents the SRU-UPS, a short time power backup solution housed on a 100x160mm2 Eurocard, suitable e.g. for CompactPCI Serial backplanes or other 19-inch based systems. Used in addition (in-line) to a PSU, it can be regarded as uninterruptible power supply. Under normal conditions the SRU-UPS bypasses the 12V power rail and charges the on-board Supercapacitors. When a power fail situation occurs, the SRU-UPS sustains regulated 12V/5A on its output for at least 14s, sufficient for a controlled shutdown without loss of data.

The SRU-UPS is also a backup solution for short power failures. During normal operation, the input voltage is forwarded to the SRU-UPS output with a small loss of <0.3V. When the UPS detects an under-voltage condition (<11.5V) on its power input, output power will be generated by a DC/DC converter instead, derived from an array of on-board ultra-capacitors.

The SRU-UPS is equipped with a PwrBlade backplane connector. EKF offers suitable CompactPCI Serial backplanes with two adjacent PwrBlade® slots for both a removable power supply and the SRU-UPS card.

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