STMicroelectronics
1500V MOSFET based DEMOBOARDS
MPA Systems Lab – Power Supply Team
2
SMPS for 3-Ph Input1500V MOSFET
The SMPS have been designed for industrial applications for auxiliary power
supplies;
The input voltage in such applications can range between 230Vac and 460Vac;
The proposed power supplies are based on the high voltage power MOSFET, with
VDS=1500V;
The power supply topology is the Quasi-resonant Flyback, driven by the primary
controller L6565;
Two demoboard have been developed:
- DB#1 – 10W SMPS with two isolated outputs
- DB#2 – 40W SMPS with double output
3
10W SMPS for 3-Ph InputParameter Value
Input voltage range 185 to 460 Vac
Input frequency range 50/60 Hz
Demoboard 1
Output 1 12V @ 0.5A
Output 2 5V @ 0.55A
Output power 10W
Demoboard 2
Output 1 24V @ 1.7A
Output 2 5V @ 1A
Output Power 45W
Line regulation +/- 1%
Load regulation +/- 1%
Output ripple voltage 1 50mV
Hold-up capability > 40 ms (*)
Safety EN60950
EMI EN55022 class B
4
10W SMPS for 3-Ph Input SCHEMATIC
R51.8M
Lp=15mH
12V @ 600 mA
5V @ 550 mA
N1/N5V=87
R24nc
N1/N12V=38N1/Naux=30
R25nc
Core material N67Core shape E20 (E25)
L8 1mH
D101N4007
AC
L9 1mH C20
10n-X2
400Vac
CON1
12
C21
10n-X2
R261M
R271M
R281M
R291M
NTC2
50E
+C22
4.7uF
230Vac
CON2
12
+C23
4.7uF
F4 1A
L10 1mH
L11
27 mH
1 234
D111N4007
AC
D121N4007
AC
D131N4007
AC
480-650VDC
10u
L7
10u
L6
Q11 nc
R122.2k - nc
Co422u - 10V
C16nc
R11
10
U1
L6565
VFF3
ZCD5
INV1
GND6
GD7
COMP2
CS4
VCC8
R7330k
R13
27k
C11
2.2n
R15
15k
R12
12k
C10
1n
C19
2.2n - Y1
R17
1k
M1
STP4N1503
12
R183.5
R16
2.2
C12220p
R192.2k
C17
330n
R2210k
C947u
R2110k
U3
TL431 23
1
R23
560
R201k
C18
n.c.
PC817
U2
C13100n
C14100p
D6
1N4148
R61.8M
Co3
22u - 25V
C15
6.8n - nc
D5
STTH108
R9
150KC8
1n/2kV
D7
1N4148
R14
120k
R8330k
R10
150K
Co1220u - 25V
D8
STPS3L40S
D9
STPS3L25SCo2
220u - 10V
T1
TRANSFORMER
1
2
54
3 6
7
8
D4
STTH108
J6
CON2
1
23
5
40W SMPS for 3-Ph Input SCHEMATIC
R212R2
L1 1mH
D41N4007
AC
L2 1mH
U5TL431
21
3
U4 L5970A D
INH3
FB5
OUT1
V RE F6
GND7
S Y NC2
COMP4
V CC8
R51.8M
J6
CON3_0
21
3
g=1.32mm
Ns=15T-AWG23Np=185T-AWG34
Lp=3.5mH
Naux=10T-AWG32
T1
TRA NS FORME R
7
2
1
3
14
8
Np/Ns=12.17C3
10n-X 2
R22nc
C4
10n-X 2
400Vac
CON1
12
Core material N67(CF138)COre shape ETD29
R21M
R11M
5V/1A
R31M
R41M
NTC1
50E
230Vac
CON2
12
+C1
22uF/450V
+C2
22uF/450V
F1 1A
L3 1mH
L4
27 mH
1 234
D31N4007
AC
D11N4007
AC
D21N4007
AC
Q11 nc
R132.2k - nc
C12nc
R12 16R
24V/1.7A
U1
L6565
V FF3
ZCD5
INV1
GND6
GD7
COMP2
CS4
V CC8
R8330k
R15
27k
C7
2.2n
R17 56kR14
18k
C6
1n
C14
2.2n - Y 1
R19
1k
M1
S TP 4N150
1
23
R202R2
R18
2.2
C92.2n
R262k2
C22 22n
R301.2k - 1%
C1047u
R2810k - 1%
R29
5k6
R273k3
C23
n.c.
P C817
U2
C8100n
C11470p
D7
1N4148
R61.8M
C16
22u/35V
C13
6.8n - nc
D5
S TTH108
R10150K /2W
C5
3.3n/2kV
D8
1N4148
R16
120k
R9330k
R11150K /2W
L5 10uH
C15
220u/35V
D9 S TP S 5H100
D6
S TTH108
HS12C/W
L6 15uH
C20
10uF/35V
+C17
220uF/10VC18
22nC19
220p
480-650VDC
R71.8M
R2312k
R24
3k9R25
4k7
C21 nc
D10
S TP S 2L25U
6
40W SMPS for 3-Ph Input
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