Premier Magnetics announces its PM-PTxxx Series of frequency-optimized planar transformers. The new line, offering models with ratings to 250W, are designed for forward converter, full/half bridge and active clamp applications utilizing switching frequencies between 200 KHz and 700 KHz. Proprietary layout techniques for the circuit board windings result in optimization of transformer impedance and interwinding […]
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Line filters are designed to replace discontinued Murata Components
Premier Magnetics announces the in-stock availability of its PMCU Series of common mode line filters designed for switching power supply applications. Offered in both standard winding (for higher efficiency) and sectional winding (for improved high-frequency performance), the PMCU line models provide a direct cross for over three dozen PLA10ANxxx and PLA10ASxxx EMIFIL series components recently […]
Common-mode line filters for SMPS replace discontinued units
The PMCU Series of common mode line filters is designed for switching power supply applications. Offered in both standard winding (for higher efficiency) and sectional winding (for improved high-frequency performance), the updated PMCU offerings have been expanded to include a direct cross for over three dozen PLA10ANxxx and PLA10ASxxx EMIFIL series components recently discontinued by […]
Transformers meet PoE, PoE+, UPoE specs over 3 to 60-W range
Premier Magnetics, introduces its expanded line of low-cost, high-performance transformers designed to support the full range of Power-over-Ethernet (PoE) applications from IEEE 802.3af (15.4W, max), IEEE 802.3at (30W), Cisco UPoE and other higher-power PoE extensions up to 60W. The low-profile, surface-mount devices operate over a wide frequency range, provide high isolation (1500V) and are available in […]
Drum-core inductors target SPS, EMI filtering apps
Premier Magnetics introduces its new line of low-cost, high-performance drum core inductors designed for EMI filtering and switch mode power supply applications. With a product offering of over two dozen models with inductance values from 100 to 10,000 µH, the new PM-R Series boasts low dc resistance (DCR), providing low-temperature rise at high peak currents. Their […]
SIP dc/dc converters supply up to 15 W
Lake Forest, Calif.—September 3, 2015—Premier Magnetics, global producer of high-quality magnetic components for switch-mode power supplies, DC-DC converters and data communications applications, announces additions to its PDCS family of self-contained, single-in-line-package (SIP) DC-DC convertersfor distributed power applications. These compact, low-profile, power conversion devices are fully integrated and require no external components. Applications for the PDCS […]
Choking off EMI/RFI in off-line switchers
by Jim Earley, President, Premier Magnetics Electromagnetic interference (EMI) and radio frequency interference (RFI) are natural byproducts of switching power supplies. Much of this noise arises as a direct result of the large voltage swings caused by short-duration charging and discharging in the power supply circuitry. Common mode noise, which is generated through the power […]
