• Develop standard design template in order to reduce costs to meet growing market demand while still remaining flexible to meet each customer’s unique needs
• Illuminate photovoltaic under test with a simulated solar spectrum to accommodate various product sizes and manufacturing processes while meeting industry-accepted standards
• Design and integrate data acquisition and photovoltaic electronic load circuitry to support very short light source pulse widths and fast test times
• Develop software and material handling flexibility to support the data analysing, classifying, and sorting of various product types and sizes
• Material handling tooling to support extremely brittle, thin crystalline material

• A complete automated solution for the testing and sorting of photovoltaic cells & panels of a variety of types and sizes
• Support for either continuous or pulsed light source technologies with required sun intensity and image area uniformity
• High-end, high-speed data acquisition and computer-controlled test circuitry to sweep and capture the product’s Current vs. Voltage (I-V) characteristic
• Ability to normalize for temperature and/or control test platen temperature for consistency of results
• PC-based testing in a Windows NT environment with advanced user configuration menus, system diagnostics, shift report generation, and test data analysing, archiving, & exporting capabilities

• ATS Test Systems Customized Visual C++ Test Executive
• National Instruments high-speed, high-accuracy data acquisition sized for required sample rates of photovoltaic current, voltage, and temperature
• Agilent Programmable Power Supply for voltage biasing of photovoltaic to compensate for short circuit losses
• Computer-controlled, fast-response FET electronic load to sweep photovoltaic I-V characteristic
• Integration with either continuous or pulsed light sources, sized for photovoltaic image area
• ATS Test Systems custom tooling and fixturing with optional temperature-controlled test platen
• ATS SuperbotTM for product material handling to identified cell classification bins
• ATS Test Systems urethane solar cell carriers

• Demonstrated Gauge Repeatability & Reproducibility < 10%
• Fast test times support overall process throughput of < 3 seconds per part
• Configurable test ranges and pass/fail criteria for the following parameters (system instrumentation is selected to match product specifications):
  • Complete I-V Curve
  • Open Circuit Voltage
  • Short Circuit Current
  • Maximum Power
  • Current & Voltage @ Maximum Power
  • Short Circuit Current Density
  • Current @ Fixed Voltage Level
  • Fill Factor
  • Efficiency
  • Series Resistance
  • Parallel Resistance
  • Temperature
    

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