AN3407

PFC coil specifications

Doc ID 018857 Rev 1

21/25

8

PFC coil specifications

Figure 29.

PFC: QP2520V-vertical type for PFC choke

Note:

Class B insulation system: SBI4.2

with standing voltage: 1.0 kV/3 sec/AC/5 mA, primary to secondary, 0.5 kV/1 sec/AC/3 mA,

primary to core, 0.5 kV/1 sec/AC/3 mA, secondary to core

Table 5.

Transformer specifications

Core spec-QP2520

Ae

Le

46 mm

Wiring spec. for resonant transformer

No.

Start

Finish

Wire

Winding

Turns

Inductance

DCR (m

Ω)

L1

1.2

3.4

0.1

Φ 35c*

1p(Litz)

Primary

62

±0.5 580 µH ±10%

280 max.

L2

7

6

0.3

Φ* 1c

AUX

6

±0.5