Industrial Technology Research Institute

Ren-Chin Shr

Yean-San Long

En-Yun Wang

Cho-Fan Hsieh

Teng-Chun Wu

Yu-Ting Yen

Hung-Sen Wu

Chin Lien

Min-An Tsai

Hsiang-Ying Cheng

A defect inspection method and a defect inspection system for a solar cell are proposed, where the method includes the following steps. Output voltages and output currents of the solar cell are measured by a measuring device. A stepwise current-voltage curve (stepwise IV curve) and a fitted current-voltage curve (fitted IV curve) are generated by a processing device according to the output voltages and the output currents, and whether a first error of the fitted IV curve is less than a first error tolerance is determined by the processing device. When the first error is not less than the first error tolerance, whether there exists at least one surge in steps of the stepwise IV curve is determined by the processing device so as to determine whether the solar cell has a defect. Next, a determined result of the processing device is outputted by the output device.

Defect inspection method and system for solar cell

A measuring apparatus for solar cell is provided, which is configured to measure a solar cell to obtain a characteristic curve thereof. The measuring apparatus includes a signal measurement control circuit and a signal transmitting control circuit. The signal measurement control circuit is configured to output at least one control signal for controlling a resistance circuit thereof to provide a measurement loading. The signal transmitting control circuit includes at least one path separating circuit, each path separating circuit is configured to provide at least two signal transmitting paths with different signal transmitting directions. The signal measurement control circuit outputs the control signal to the resistance circuit by using the signal transmitting control circuit, so that the resistance circuit can be controlled to provide the measurement loading.

Measuring apparatus for solar cell

Growing community of inventors

Hsinchu, Taiwan

Ren-Chin Shr