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Convection cooled AC-DC power supplies with up to 95% efficiency

Convection cooled AC-DC power supplies with up to 95% efficiency

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By Julien Happich



The PQC series accommodates the universal AC input voltage range from 90 VAC to 264 VAC and with a frequency range from 47Hz to 63Hz. The highly efficient convection cooling design employs optimal thermal management to deliver an energy efficiency rating of up to 95%.

The PQC series is available in 12 V, 15 V, 18 V, 24 V, 36 V, 48 V, or 54 V single output variants, each with a 5 V standby supply as standard. Additional output voltage variants are currently under development including 54V scheduled for a June 2017 release. Featuring remote enable, the PQC consumes less than 500 mW of power in standby mode. These power supplies can continuously deliver full output power across the wide temperature range 0 °C to 50 °C and up to 70 °C (with derating).
The series conforms to medical, consumer, and ITE IEC/EN/UL 60950-1 safety approvals and incorporates 2 X MOPP (Means of Patient Protection) isolation. With an isolation of 4000 VAC (input to output) or 1500 VAC (input to PE), these units are suitable for powering equipment such as ultrasound monitors, blood pressure monitors, incubators, ECG equipment, and operating tables. EMI compliance is certified to EN55022 Class B conducted emissions.
Murata Europe – www.murata.com

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