TDK-Lambda HWS 3000G - Block Diagram

INSTRUCTION MANUAL
HWS 3000G
TDK-Lambda
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7. Block diagram
・ Circuit topology, switching frequency
PFHC circuit : Active filter 100kHz
Switching Circuit : Full-Bridge converter 120kHz (Primary circuit), 240kHz (Secondary circuit)
Auxiliary power1: Flybuck converter 125kHz
Auxiliary power2: Flybuck converter 77kHz
Buck converter (AUX): Buck converter 300kHz
・ Fuse rating :30A
Parts name : 0324030
Manufacturer name : Littel fuse
TOPTOP
Line Filter
Inrush Current Limit Circuit
Filter
L
N
Input
85～132VAC/170～265VAC
+V
Output
+S
-S
-V
+L
-L
ACF
Auxiliary
power2
AUX
GND
PFHC Circuit
Switching Circuit
Rectifirer
Output Voltage
Sensing
+D
-D
DG
Control
Circuit
Output Current
Sensing
OVP
Sensing
Filter
(Output - Signal・AUX)
Reinforced insulation
Buck
converter
(Input-Output)
(Input-Signal・AUX)
Reinforced insulation
Auxiliary
power1
FAN
CN61
Control
Circuit
Balance
-DR
DG
HL
PWR
-R
+R
AG
CB
VB
CC
CV
A/I
A/O
R=120Ω
R
CN41、CN42
CN41
CN42
VPF
L/E
CPF
CN71
(Input- )
Basic insulation
(Output- )
Basic insulation
(Signal・AUX - )
Functional insulation
Control
Circuit