Design of a 600 W half bridge LLC converter using 600 V ...
44
Transcript of Design of a 600 W half bridge LLC converter using 600 V ...
²)²1()²1²(²)²1²(
)1²(
)(
)(),,(
_
_
QmFFFm
mF
sV
sVFxmQK
xxx
x
acin
aco
r
mr
L
LLm
rr
r
CLf
1
r
s
f
fFx o
s
pac R
N
NR
²
²
²
8
ac
rr
R
CL
Q
162 _
_
nomout
nomin
s
p
V
V
N
Nn
95.0
2
),,(max_
min_min
in
ox
V
VnFmQK
08.1
2
),,(min_
max_max
in
ox
V
VnFmQK
1;16162 _
_
NsNp
V
V
N
Nn
nomout
nomin
s
p
HLHLL
LLm rm
r
mr 17;19512
nFCr 66
KHzCrLr
fr 1502
1
Im ag _ min =2 × 2
p×
n×Vo
2p × fsw _ max× Lm
= 0.672A
JILLEn magrmres 1.95²)(2
1min_min_
JVCEn DSerocap 9²)2(2
1max_)(max_
max_min_ capres EnEn
pk
Vossecsdead
Qtt
m,
400@,
I
2
2
ALf
Vn
msw
oag 672.0
2
22I
max_min_m
ALf
Vn
msw
oag 66.1
2
22I
min_max_m
sec130I
2
2 max,m,
400@,min, n
Qtt
ag
Vossecsdead
sec311I
2
2 min,m
400@,max, n
Qtt
ag
Vossecsdead
WP MAXtrafo 3_
CCT MAXtrafo 55)55110(_
WC
WC
P
TR
MAXtrafo
MAXtrafoMAXtrafoth
3.18
3
55
_
___
Δ
WPWPPP MAXtrafocorecoppertrafo 39.2 _
)²(,_ RMSonDSSRcond IRP
Ω
Ω Ω
Ω
−
−
−
Ω
Ch4: IDS_LS
Ch2: VGS_LS
Ch1: VDS_LS
Ch1: VDS_LS
Ch4: IDS_LS
Ch2: VGS_LS
Nearly full ZVS
achieved
starting at 5 A load
Ch1: VDS_LS
Ch4: IDS_LS
Ch2: VGS_LS
Burst Mode Operation at a Very Light Load
Condition
Ch3: VOUT
93
93,5
94
94,5
95
95,5
96
96,5
97
97,5
98
0 10 20 30 40 50 60
600 W LLC efficiency with IPP60R180P7
(Bias and fan absorption not included)
η [%]
Load Current [A]
0.1% total accuracy
0,000
0,500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
[W]
Tracks, Cin, sensing
Output capacitance
Output choke
Resonant choke
SR losses
Power trafo
Primary MOSFETs(IPP60R180P7)
19,12
41,30
30,27
4,96 1,59
0,12
2,65
0,000
1,000
2,000
3,000
4,000
5,000
6,000
7,000
[W]
Tracks, Cin, sensing
Output capacitance
Output choke
Resonant choke
SR losses
Power trafo
Primary MOSFETs(IPP60R180P7)
32,94
26,92
24,29
5,02 4,56
1,71 4,56
0,000
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
[W]
Tracks, Cin, sensing
Outputcapacitance
Output choke
Resonant choke
SR losses
Power trafo
Primary MOSFETs(IPP60R180P7)
38,56
17,43
24,15
3,79
4,25 2,73
9,10
