Engineering Specification
ES-3U5T-1B257-AA
EMC Design Guide for Printed Circuit Boards
Frame 60 of 78
Rev. A
10/01/2002
Printed copies are uncontrolled
40. The secondary loop area of SMPS that uses a transformer should be minimized as
much as possible (Figure 513). The loop includes the positive side of the secondary
windings of the transformer, the series diode, the bulk capacitor; the ground lead of
the bulk capacitor, and the ground side of the secondary winding of the transformer.
Figure 513. Secondary Loop Area
Secondary Loop Area
TR
C
BULK
D
FLYBACK
V1
OUT
V2
OUT
Summary :
Secondary Loop Area Secondary Loop Area TR C BULK D FLYBACK V1 OUT V2 OUT
Tags :
secondary,loop,area,transformer,bulk,printed,513,figure,capacitor,out,ground,side,possible