When bridge type rectifier and big capacitor filtering are
adopted in switching power supply, current shapes as small
top wave, non-line, and power factor only reaches 0.5~0.7.
The current regulations both at home and abroad stipulates that the
power factor of switch power supply should reach above
0.9,and power factor correction must be adopted to improve the
factor. At present, normally active power factor is adopted to
correct circuit such as voltage rising switch circuit),among this
system, inductance and filtering inductance are different, this
functions as energy storage and transition, which result in
different designs. Fe-based Amorphous core works as power factor
correction inductance, under the conditions of *0KHZ,2.5KVA power
factor correction circuit. Compared with silicone steel core with
thickness of 0.1,the Core loss drops from *8.8W to 4.4W,and its
weight from 4.*5KGS to 4.2KGS,so amorphous is the ideal material
for PFC inductance.
Applications :
Substitute of silicone steel, works as output filtering inductance
and reactor for high-power frequency rectifier
Substitute of thin silicone steel and ferrite, works as output
filtering inductance in high-power medium and high frequency power
supply(**0Hz~*0kHz)
As a power factor correction inductancebelow *0KHZ),applied in
frequency conversion AC, UPS, switching mode power supply,
etc.
Properties :
Open core, excellent constant inductance performance and
anti-DC bias magnetic capacity.
High saturation flux density Bs**-enabled to reduce
transformer sizes.
High permeability, low coercivity**-enabled to improve
transformer work efficiency and reduce coil distribution
parameter.
Low loss enabled to reduce transformer temperature rise.
Excellent stability**-workable for long under **0.
Remarks: customized cores of other sizes and
different characteristics available upon
request.
