Product descriptions:
PFC chokes are made from the iron powder core with either one or two coils
As small magnetic leakage, a low wastage and low profile, high power factor correction, they are widely applied in electronic ballast or other switch power supply
Active PFC offers better THD and is significantly smaller and lighter than a passive PFC circuit
To reduce the size and cost of passive filter elements, an active PFC operates at a higher switching frequency than the 50/60Hz line frequency
Active PFC functions includes:
Active wave shaping of the input current
Filtering of the high frequency switching
Feedback sensing of the source current for waveform control
Feedback control to regulate output voltage
Buck, boost, fly-back and other converter topologies are used in active PFC circuits
Key specifications/special features:
Selection of materials: amorphous magnetic, non crystalline ring, kool toroid
High current, horizontal or vertical mount
High saturation flux density
High power factor correction
Low profile and low weight
Less flux leakage and beat
Low radiation and core loss
Precise inductance
Operating temperature: -55 to 105°C
Power: 200, 250, 300 and 500W
Voltage: 100/230V, 50Hz
Inductance range: 1 to 1000uH
PF value: greater than 98%
Tested at 100kHz, 0.1Vrms inductance of uH 10%
DC current at which the inductance drops 10% (type) from its value without current
Electrical characteristics at 25°C
Insulation: class B (130°C), F (155°C), H (180°C), N (200°C) and R (220°C)
Certifications: UL, CQC and CE
Excellent utilization of electricity, nice for environment-friendly
Customized specifications are accepted
Applications:
Frequency power
UPS
EMI/RFI filters
Switching power output and smoothing circuits
Used as choke coil for high frequency SMPs
Counter measure against spike ripples
DC/DC converters
IP and OP devices
Notebook computer
Air conditioning
Digital TV
Battery power equipment
Power supply of all types of household appliances
Switching power supplies
Reasons of our top-quality components help customer's business succeed:
22 years of experience customizing and power inductors
Experienced staff keeps nice quality
Customer's professional and reliable partner for various electronics
Over 1000 buyers value our products