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250 W DC-DC solar module demonstration board
Features
■ Input voltage range from 10 V to 45 V
■ Output voltage range from 350 V to 430 V
■ Digital control section managed by the STM32
■ Several I/O connectors to be connected to the
photovoltaic panel (input side) and the inverter
(output side)
■ Ready to be connected to a PLM or ZigBee
external module for communication
■ Possibility to meter and monitor the status of
the panel
■ Fire and anti-theft protections
■ RoHS compliant
Description
The STEVAL-ISV013V1 demonstration board is a
fully integrated module designed for a smart
junction box in distributed photovoltaic
architecture. The module represents an easy-touse, fully-protected solution to implement precise
photovoltaic panel control, diagnostics and
protection.
The STEVAL-ISV013V1 demonstration board is
the base element for a new photovoltaic panel
configuration able to increase the panel energy
produced and to simplify the photovoltaic field
design and implementation. Furthermore, the
maintenance cost will be reduced as the device is
able to monitor the status of the individual panels
and to communicate these data to a remote
control unit. The STEVAL-ISV013V1
demonstration board uses an isolated converter,
which is the input of the panel output. This voltage
is stepped up to the voltage defined by the
inverter, needed to create a sinusoidal output with
a magnitude big enough to transfer energy to the
grid.
STEVAL-ISV013V1
for distributed photovoltaic architecture
Data brief
®
STEVAL-ISV013V1
STEVAL-ISV013V1
search for the best operating point of the panel in
order to maximize the energy produced in every
environmental condition.
The module is internally protected from a surge or
lightning reaching the connection wires.
The STEVAL-ISV013V1 demonstration board
includes a PLM or ZigBee
communication. The PLM is supported by a
proprietary protocol stack for networking. A
gateway to RS485 in modbus is available. The
unit is designed to operate in a harsh
environment, offering a high level of protection
and very high reliability.
The ZigBee
®
module is based on system-on-chip
(SoC) technology, integrating both IEEE 802.15.4
radio transceiver and computing capabilities and
is designed to run a fully compliant ZigBee
network protocol stack.
®
module for
®
PRO
The module features an embedded MPPT
(maximum power point tracking) algorithm based
on the “perturb and observe” (P&O) technique to
September 2011 Doc ID 022189 Rev 1 1/5
For further information contact your local STMicroelectronics sales office.
www.st.com
5
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Schematic circuit STEVAL-ISV013V1
1 Schematic circuit
Figure 1. Isolated full-bridge boost converter
J2
CON2
2
1
C1
9x26.5
p.22.5
VOUT+_EXT
0.22u 630V
1206
F1
VOUT+
FUSE
R116
0 ohm
L5
N.M.
R2
7.5M 1%
D2PAK
D1
STTH12R06G
Vbus_SENS
1206
1206
R3
7.5M 1%
C82
6.3x6.3
10uH
L6
C2
2.2u 250V
TR1
H2PAKH2PAK
STH180N10F3-2
Q4
10n 630V
Voltage max 205V to GN D
10,11,12
7,8,9
1,2,3
4,5,6
Voltage max 50V
VOUT-
N.M.
D18
51K 1%
R5
0603
1210
C4
2.2u 250V
D3
STTH12R06G
D2PAK
H2PAK
Q2
STH180N10F3-2
SOURCE2
8,9,10,12,13,14
L1
1,2,3,5,6,7
VINPUT
1
J1+
2/5 Doc ID 022189 Rev 1
GATE 4
Q3
STH180N10F3-2
80uH, 8A
Out1
GATE 3
150K 1%
R1
1206
D32
SPV1001D40
1
J-SPARE1
GATE 2
Out2
D2
SMBJ70CA
SMB
H2PAK
Q1
STH180N10F3-2
SOURCE1
Voltag e max 50V
GATE 1
C3
22u 100V
D8
N.M.
Voltage max 3.3V
VIN_SENS_PV
D31
1
SPV1001D40
J-SPARE2
I_SENS_PV+
R6
3m Ohm
0805/SMB
I_SENS_PV-
R4
4.7K 1%
0603/0805
D30
SPV1001D40
1
J1-
AM10164V1