Power Factor Correction

Power factor correction ICs (integrated circuits) are devices designed to improve the efficiency of an electronic circuit that contain other devices with lower power factor. Power factor is the measurement of the efficiency of input power. Power factor correction (PFC) is designed to improve the power quality by improving this efficiency. They feature capacitors or inductors which are used to counteract the inefficiencies of motors and machines.

How is it power factor calculated?

Power factor is the Real Power minus Reactive Power. Real power is the power required to carry out the task. Reactive power is the excess power that is used, but is not required by the task. The goal is for power factor to be 100% in its efficiency, or 1pf. Power factor can be calculated by Active (or true) power divided by Apparent power. Reactive operates at a right angle to True power.

Why use power factor correction ICs?

Power factor correction can be used in many applications to help financially. This is achieved through reducing power consumption or reducing the unnecessary Reactive Power.

Where is PFC used?

  • Computers
  • Power supplies
  • Lighting
  • Induction welders
  • Electrical motors

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Description Price Maximum Switching Frequency Start-up Supply Current IC Type Maximum Source Current Maximum Sink Current Maximum Supply Current Zero Power Detection Mounting Type Package Type Pin Count Dimensions Height Length Maximum Operating Supply Voltage
RS庫存編號 145-7284
製造零件編號UCC28060D
HK$26.43
毎管:40 個
單位
45 kHz 0.1mA Power Factor Controller 1000mA 1800000µA 8 mA Yes Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm 21 V
RS庫存編號 661-5162
製造零件編號UC2854BN
HK$52.11
單位
115 kHz 0.3mA Power Factor Pre-Regulator Circuit 14µA - 18 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 20 V
RS庫存編號 162-6031
製造零件編號UC2854BN
HK$44.205
毎管:25 個
單位
115 kHz 0.3mA Power Factor Pre-Regulator Circuit 14µA - 18 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 20 V
RS庫存編號 922-3482
製造零件編號UCC2818D
HK$31.899
毎管:40 個
單位
- - - - - - - - - - - - - -
RS庫存編號 620-0751
製造零件編號UC3854BN
HK$46.42
/個 (每包:5個)
單位
115 kHz 0.3mA Power Factor Pre-Regulator Circuit 14µA - 18 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 20 V
RS庫存編號 661-5670
製造零件編號UCC2818D
HK$37.56
單位
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm 17 V
RS庫存編號 661-5392
製造零件編號UC3854BDW
HK$41.80
單位
115 kHz 0.3mA Power Factor Pre-Regulator Circuit 14µA - 18 mA Yes Surface Mount SOIC 16 10.28 x 7.52 x 2.35mm 2.35mm 10.28mm 20 V
RS庫存編號 661-5175
製造零件編號UC2854N
HK$37.55
單位
118 kHz 1.5mA Power Factor Pre-Regulator Circuit 14µA - 10 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 35 V
RS庫存編號 661-6014
製造零件編號UCC3818D
HK$36.08
單位
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm 17 V
RS庫存編號 169-5607
製造零件編號UCC3817N
HK$29.20
毎管:25 個
單位
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 17 V
RS庫存編號 121-8961
製造零件編號UC3854BN
HK$39.711
毎管:25 個
單位
115 kHz 0.3mA Power Factor Pre-Regulator Circuit 14µA - 18 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 20 V
RS庫存編號 661-5406
製造零件編號UC3854DW
HK$28.39
單位
118 kHz 1.5mA Power Factor Pre-Regulator Circuit 14µA - 10 mA Yes Surface Mount SOIC 16 10.28 x 7.52 x 2.35mm 2.35mm 10.28mm 35 V
RS庫存編號 661-6005
製造零件編號UCC3817N
HK$34.50
單位
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 17 V
RS庫存編號 169-5601
製造零件編號UCC2818AN
HK$35.668
毎管:25 個
單位
115 kHz 0.15mA Power Factor Pre-Regulator Circuit 900000µA 1200mA 6 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 18 V
RS庫存編號 922-3467
製造零件編號UC3854BDW
HK$35.396
毎管:40 個
單位
- - - - - - - - - - - - - -
RS庫存編號 922-3473
製造零件編號UCC28070PW
HK$33.276
毎管:70 個
單位
- - - - - - - - - - - - - -
RS庫存編號 661-5661
製造零件編號UCC2818AN
HK$43.12
單位
115 kHz 0.15mA Power Factor Pre-Regulator Circuit 900000µA 1200mA 6 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 18 V
RS庫存編號 162-6064
製造零件編號UCC28019P
HK$13.133
毎管:50 個
單位
68.3 kHz 0.1mA Power Factor Controller -0.038mA 38µA 10 mA Yes Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 4.57mm 9.81mm 22 V
RS庫存編號 145-5765
製造零件編號UC3854DW
HK$28.571
毎管:40 個
單位
118 kHz 1.5mA Power Factor Pre-Regulator Circuit 14µA - 10 mA Yes Surface Mount SOIC 16 10.28 x 7.52 x 2.35mm 2.35mm 10.28mm 35 V
RS庫存編號 620-0745
製造零件編號UC3854AN
HK$46.904
/個 (每包:5個)
單位
115 kHz 0.3mA Power Factor Pre-Regulator Circuit 14µA - 18 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 20 V