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AN4217 датащи(PDF) 5 Page - STMicroelectronics

номер детали AN4217
подробное описание детали  Designing the SPV1020 with serial and parallel output configurations
PDF  22 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4217 датащи(HTML) 5 Page - STMicroelectronics

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AN4217
STEVAL-ISV0x8V1 parallel and series connection
Doc ID 024010 Rev 1
5/22
The output partitioning (R3/R4, R9/R10, R16/R17 in the STEVAL-ISV0x8V1 schematic) of
each of the three SPV1020 devices must be in accordance with the desired VOUT.
According to the topology:
Equation 4
According to the light irradiation on each panel (PIN) and to the system efficiency (η), output
power is:
Equation 5
Therefore:
Equation 6
Each SPV1020 contributes to the output power providing IOUTX according to the irradiation
of its panel.
Moreover, the desired VOUT is guaranteed if at least one of the three PV panels provides
enough voltage to turn on the related SPV1020.
Figure 8 shows the power conversion efficiency when VMPP = 12 V and IMPP ranges from 1
A to 8 A (in steps of 1 A). Power ranges between 36 W and 288 W.
3
2
1
Vout
Vout
Vout
Vout
=
=
=
3
2
1
Iout
Iout
Iout
Iout
+
+
=
3
2
1
Pout
Pout
Pout
Pout
+
+
=
Ioutx
Vout x
Poutx
*
=
]
3
..
1
[ =
x
Iinx
Vinx
Pinx
*
=
]
3
..
1
[ =
x
3
2
1
)
3
2
1
(
Pin
Pin
Pin
Iout
Iout
Iout
Vout
Pout
η
η
η
+
+
=
+
+
=



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