台达_培训Forward converterDelta Power Electronics Center
Shanghai/ China, Tel: 021- 58635678, Fax: 021- 58630003
Forward Converter
By Hongjian Gan, Dr.
Delta Power Electronics Center
Delta Power Electronics Center
Contents
1. Basic 2. Resonant reset 3. RCD clamp reset 4. LCD snubber reset 5. Active clamp reset 6. Dual switch forward converter
Delta Power Electronics Center
1. Basic
Delta Power Electronics Center
Derived from buck converter
D1
LF
n V in TR
1
D2
IO
CF
VO
Q
M=
VO 1 = D Vin n
! Features the same as those of buck converter
Delta Power Electronics Center
Volt-second product balance
T on V in A T off B T rset n S LM TR
! Necessary Vrset can be obtained by different reset schemes ! reset with tertiary winding ! resonant reset ! RCD-clamp reset ! LCD reset ! active-clamp reset
0 V ……
