PV cell string optimizer boosts solar panel output up to 30%

PV cell string optimizer boosts solar panel output up to 30%

Maxim presents its Cell-String Optimizer as the first IC to perform MPPT (maximum power point tracking) at low level in a panel; it allows photovoltaic (PV) panels to harvest significantly more energy and simplifies design complexity for solar installation projects. by Graham Prophet @ edn-europe.com

Maxim’s cell-string optimizers are highly integrated DC-DC converters that replace the bypass diode and perform maximum power point tracking (MPPT) deep inside the PV module. By replacing each diode with a MPPT device, the on-off response to performance mismatch is eliminated; every cell-string contributes maximum power without interfering with the power production capability of others. This enhanced degree of flexibility leads to increased energy production; eliminating collateral performance loss due to module mismatch, degradation, soiling, localized shading, and row shading loss mechanisms.

PV cell string optimizer boosts solar panel output up to 30% – [Link]

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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Bob Kondner


I have done a little work in this area and almost any low cost power converter can do the same with a simple storage cap.

At low light levels any normal converter would normally be very inefficient. But the additions of a storage cap (electrolytic) allows the converter to run at a high power level for a short period of time. During this interval the converter runs at high efficiency. I simple peak detector can be used to turn the converter on with the cap voltage reach a MPPT point.

Check out the http://www.sunduino.com site there is support for solar panels with lots of useful documentation.

Bob K.