Pfc Inductor Core

April 12, 2018

Wilson jr ronald c. A pfc inductor is nothing but an ordinary inductor attached in a circuit for the purpose of adjusting the power factor value to obtain high efficiency and proper power transfer.

Amorphous Magnetic Cores

A 200 W Ripple Free Input Current Pfc Pre Regulator With The

Pfc Inductor Core 80 50 25 Shin Core Hong Kong

Wong ron wunderlich and fred c.

Pfc inductor core. For power factor correction applications powdered iron kool mu sendust hi flux moly permalloy and xflux each provide their own unique solutions to frequency power handling and biasing needs. Crcm inductor are low hf core loss low hf winding loss and the stable value over the operating range the inductor is essentially part of the timing circuit the ccm mode inductor takes a different approach. Design of dc inductors used in dcdc converters.

Replaces fa2890 cl boost inductor. Designed to operate in 100 watt applications. This device will operate in ccm crcm and dcm of operation.

To conform to downsizing thinning or minimizing floor space which are the requirements for various electronic devices original core shape products with sufficient dc superposition characteristics for design are. Design of a power factor boost inductor commonly referred to as a pfc choke. So the working principle of pfc inductor is the same as the ordinary inductor.

For the ccm pfc the full load inductor current ripple is typically designed to be 20 40 of the average input current. The micrometals inductor design calculator allows users to log in and select from two different inductor applications. Developed for on semiconductor ncp1606 7 8 pfc controllers.

Transim technology corporation. Lee center for power electronics systems cpes virginia polytechnic institute and state university 158 whittemore hall blacksburg va 24061 usa. Manufacturing costs are similar to a pfc inductor.

Core magnetics with some needed cutting are readily available. Non magnetic toroids are also available to make air core toroidal inductors. A pfc boost inductor is an inductor with the purpose to improve the efficiency and power factor of your dc dc converter.

Micrometals inductor design tool. Can be used in any topology input or output diverting switching current to ground. Pfc boost inductor for on ncp1607 and ncp1608.

Figure 1 is prior art for reference only. A method for inductor core loss estimation in power factor correction applications jinjun liu thomas g. Here is an example of using kool mu in the pfc boost design.

Pfc boost design kool mu materials low loss and relatively high saturation level 10500 gauss make it excellent for use in power factor correction circuits pfc. Auxiliary winding provides zero current detection zcd information. The inductor design is crucial.

1000 vrms isolation winding to winding and from each winding to the core. We are developing choke coils for pfc power factor correction circuit that utilize this characteristics to its fullest potential.