FREMONT, CALIF. The 15-watt, single-output switching power supplies in Phihong's PSA-15LN series come in two versions: a two-wire ac input type and a three-wire version for countries that offer a ground connection as part of the wall outlet power distribution system. The switchers target for -portable instruments, peripherals, terminals and microcomputers.
"The PSA-15LN is an upgrade to our existing 10- and 15-W designs," said vice president Alan Richards. "The enhancements allow the supply to deliver 15 W from a 10 W package, except for the 3.3-volt output version." The open-frame supplies, measuring 4.33 x 1.57 x 1 inch, are available in seven models ranging from 3.3 to 24 V and deliver plus/minus 1 percent line regulation and plus/minus 3 percent load regulation.
The series meets FCC class B and EN55022 B emissions for conducted noise. It also meets IEC 61000-4-5 level 3 AC surge immunity and is safety-approved to UL1950 and CSA C22.2 950-M95.
The PSA-15LN is priced at $15.75 each in the hundreds. All models are available from the factory and off-the-shelf from franchised distributors.
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EETInfo No. 627