Pfc energy storage inductor temperature

What are PFC inductors?

PFC inductors represent a key component of the converter, while within the design of any magnetic component, several design rules must be considered to provide proper operational performance.

What is the boost inductance value of a PFC circuit?

According to the design flow chart in Section 3, a 500 W experimental prototype with universal input voltage and 390 V output voltage was constructed. The specifications for the boost PFC circuit are listed in Table 1. The calculated boost inductance value of the PFC circuit is about 440 μH.

Are there alternatives to power inductor design for PFC converters?

Various alternatives of power inductor design were experimentally verified during the investigation of the efficiency performance of the PFC converter. The original design utilized alloy core inductors and operation was defined for 41 kHz of switching frequency.

Which alternative reflects PFC inductor V1 optimization?

The first alternative reflects PFC inductor v1 optimization. It was made on the PQ35/35 core ( Figure 8) and its parameters are described in Table 1. Inductor was made with delimitated space around the air gap, thus reduction of the fringing flux and consequently reduction of power losses were expected.

Which choke inductor is used in boost PFC converter?

According to the saturation current performance, type II- se inductor is selected as the choke inductor of the boost PFC converter. The image of the prototype is shown in Figure 21. Its entire power supply consists of a boost PFC converter and an LLC converter. Photograph of the two-stage converter prototype

What is PFC stage in AC/DC power supply?

The PFC stage resides between the DC/DC and rectified AC line. Because the boost inductor inherently limits the dI/dt of the input current, it makes the topology better equipped to achieve low input current distortion. Figure 3. A Common AC/DC Power Supply Block Diagram