Latest Electronic Power Supplies News

Power supply OR'ing controller rated for 40V

Diodes has introduced a 40V-rated active OR’ing controller for the design of uninterruptible power supplies. The ZXGD3108N8 is designed to drive low RDS(ON) power mosfets replacing lossy Schottky blocking diodes. According to the supplier, by driving s in this way the controller also improves the overall system…

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Improved thermals on 1.2kV 3 phase IGBT motor driver

Fairchild has cut thermal resistance in three phase drivers for motors up to 1.2kV 7.5kW using a direct bonding copper (DBC) substrate transfer moulded into its packaging. Junction to case thermal resistance is 1.33C/W for each IGBT inside and 2.3C/W for each free-wheeling…

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34 amp GaN transistor promoted for Google challenge

Ontario-based GaN Systems is proposing a 34A capacity GaN transistor for the switching element in the IEEE/Google Little Box Challenge – a challenge to make mains power supplies at over 50W/inch3. ”We are making our GS66508P product available to all Little Box contestants. This 34A, 41mΩ GaN switch…

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Supply targets low power medical terminals

TDK-Lambda has designed a 100W power supply, measuring 2 x 4-inch, which will be targeted at medical terminals such as eye lasers and respirators. Developed in the UK, the ZMS100 single-output power supply conforms to the new IEC60601-1 3rd edition medical standard with input to output…

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100% bucks can be linear converters, says Micrel

Micrel’s latest low-profile step down power modules are capable of 100% duty cycle and operating with an input voltage range from 2.7V to 5.5V. The company is proposing their use as small form-factor alternatives to linear regulators. These synchronous buck converters have an integrated inductor…

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Single output AC-DC power supplies

Single-output, AC-DC power supplies manufactured by Sanken, the SWG series provide an input range of between 85Vac and 264Vac and efficiency in the range of 82% to 84% at 200Vac typical…

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