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Main Functions

  1. Solar Cell I-V Curve Tracing

  2. Maximum Power Point Tracking

  3. Four Quadrant I-V Analysis

Experimental results taken by Segawa laboratory, University of Tokyo

Click here to download pdf version of brochure

Findout the unique features of SPD Lab PV Power Analyzers





PV Power Analyzer VK-PA-300 Specifications

Measurement Range

Voltage: ±12 V
Current: ±2A (±4 A Pulse)
with 5½-digits resolution

Measuring Technique

Digital Source Meter


Front:  4 probes for PV devise

A/D Converters

24 Bit (2 independent ADCs for V & I measurements)

User Interface and data collecting

Computer software is provided for control of all the functions and data logging. Measurement data can be saved as a text file and directly plotted  on ®Microsoft Excel graph.   (Windows based PC required)



Power Requirement

100 – 240 VAC (50-60 Hz)

Electrical standard
Dimensions 133 mm x 260 mm x 350 mm
Weight 5 kg

Main Functions

Solar Cell I-V curve Tracing

User selectable START, END and STEP voltages. Plots current and power vs. voltage curves. Calculated results include Voc, Isc, Jsc, Pmax, Vmpp, I mpp, FF, Rs, RSH, ƞactiveA, and ƞgeoA . User can set the desired scan speed, scan time, or holding time. Advanced I-V option allows initial, middle, and end point holding times. I vs. t transient plot for all data points and/or under a selected fixed voltage.

Maximum Power Point Tracking (MPPT)

Analyzer acts like the best load for the cell to extract maximum power and keep tracking MPP continuously. Plots Pmax ,Vmpp , Impp and Efficiency vs. time curves and also display current/power vs. voltage plots. In addition user can directly measure the open circuit voltage, short circuit current and plot the current vs. time under a given fixed output voltage.

cyclic voltammetry Analysis
4QD I-V User selectable START, END, STEP voltages and SCAN SPEED (mV/s). Plot current vs. voltage curve for given number of voltage sweep cycles in potentiostat mode. Can be use in 3 electrodes liquid cell with reference electrode.


Screenshots of control software












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SPD Laboratory, Inc. Naka-ku, Johoku, 2-35-1 Hamamatsu, 432-8011, JAPAN
Tel: +81(0)53-474-7901 Fax: +81(0)53-401-7080
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