VK-PA-Pico Power Analyzer Picoammeter Mode - Operating Principle to Measure Short Circuit Current (I sc ) of Solar Cell + - Solar Cell To Analog to Digital.

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Presentation transcript:

VK-PA-Pico Power Analyzer Picoammeter Mode - Operating Principle to Measure Short Circuit Current (I sc ) of Solar Cell + - Solar Cell To Analog to Digital Converter 0 V 0 V (Short Circuit condition) R Feedback Ammeter I

VK-PA-Pico Power Analyzer MPPT Mode - Operating Principle ADC :- Analog to Digital Converter DAC :- Digital to Analog Converter Solar Cell R To ADC (for Current Reading) Feedback Ammeter I + - Current Sink Voltage Sense Current Sink Controller To ADC (for Voltage Reading) Control Signal From DAC V I

VK-PA-Pico Power Analyzer Maximum Power Point Tracking Mechanism Output Voltage Output Power V-ΔV V V+ΔV P1P1 P2P2 P3P3 S 1-2 S 2-3 If (S 1-2 > 0 and S 2-3 < 0) then Maximum Power Point is P2 If (S 1-2 > 0 and S 2-3 > 0) then P 1  P 2 P 2  P 3 Find New P 3 at V+2ΔV If (S 1-2 < 0 and S 2-3 < 0) then P 3  P 2 P 2  P 1 Find New P 1 at V-2ΔV P1P1 P2P2 P3P3 P1P1 P2P2 P3P3 User can set the desired ΔV value. Default value is 1 mV

VK-PA-Pico Power Analyzer VK-PA-Pico can also work as current source if needed. In the potentiostat mode it work as current source to the device (such as resistor or diode) connected to analyzer outputs.