Delivered
by Precision Incorporated for the International Rectifier IR1150 PFC–300
watt demo board, the IR requirements for this inductor included: Very
low core loss, low temperature rise, excellent inductance stability
over the current range, no audible noise under high ripple current conditions
and the required inductance be achieved at high bias, with a single
layer winding.
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The
results of this High Performance Inductor (Precision Part # 019-4120-00)
included 100 kHz switching frequency / 300 watt output, a 6.2A peak
current, 3.8A maximum RMS current, and a high performance core with
low losses and low self resonant frequency (SRF). The device is also
designed to be small, quiet and provide the best possible operation
in the IR application.
Precision produces
many PFC inductor designs with applications up to 4,000 watts and beyond.
As in the IR designed, high performance, PFC inductor, Precision continues
to deliver many performance/cost alternatives. These inductors are part
of a product family that encompasses a wide variety of different devices,
including toroid and e-core, over a range of power levels. Other design
options to the IR-1150 Inductor include an additional bias winding to
supply power for the PFC control circuitry. |
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Review the Precision - PFC inductor, as used on the International Rectifier
- IRAC 1150 PFC Demo Board, reference design. Find out more about the
PFC inductors, including optional windings and cost/performance alternatives
at: www.precision-inc.com, from the home page click on Applications
& PR, or, call Lyle Shaw at Precision, Inc. 763 852-6714.
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