STEVAL-ISV009V1 STMicroelectronics, STEVAL-ISV009V1 Datasheet - Page 18

• Manufacturer Part Number: STEVAL-ISV009V1
• Description: Power Management Modules & Development Tools DUAL STG DC/AC CNVRT DEMO BRD
• Manufacturer: STMicroelectronics
• Series: -r

Specifications of STEVAL-ISV009V1

• Design Resources: STEVAL-ISV009V1 BOM STEVAL-ISV009V1 Schematic
• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Power - Output: -
• Voltage - Output: 36V
• Current - Output: -
• Voltage - Input: -
• Regulator Topology: Boost
• Frequency - Switching: -
• Board Type: Fully Populated
• Utilized Ic / Part: SPV1020
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Normal/MPPT mode
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Normal/MPPT mode
This mode guarantees the maximum power extraction from a photovoltaic input supply by
executing an MPPT algorithm.
MPPT algorithm generates a voltage reference (Vref) for a PWM generator. The resulting
waveform (which Duty Cycle is proportional to Vref) drives the 8 internal switching elements.
Figure 14. SPV1020, MPPT block
The whole application can be assumed equivalent to impedance between input source and
output load and which impedance value (Z) depends on the DC set by SPV1020.
Figure 15. SPV1020, equivalent circuit
Each Z affects power transfer between input source and output load and for each Z an input
voltage (V
the proper DC in order to guarantee Z = Z
the power extracted from the supply source (P
Following figure shows both the typical curves Power- Voltage and Voltage-Current of a
photovoltaic panel.
in
) and current (I
in
) can be measured. Purpose of MPPT algorithm is to regulate
Doc ID XXXXX Rev 1
M
, assuming Z
in
= Vi
n
* I
M
in
) is maximum (P
as the impedance value for which
M
= V
M
* I
AN3392
M
).