In this research work, we fabricate solar simulators employing
single-color red, green, blue and white LEDs that provide higher
irradiance (1000 Wm2), using the pulse input voltage of high
amplitude. High irradiance is achieved applying high amplitude
voltage pulses to LEDs. This results in pulse operations, in contrast
to low voltage continuous operations of past research. Two positive
features are simultaneously realized, namely, more intense light
output from LEDs and lower temperature rise of LEDs. IeV curves of
a solar cell under different color LEDS are undertaken. Calculations
are made on solar cell resistance (series resistance, shunt resistance
and internal dynamic resistance) and solar cell parameters (open
circuit voltage, short circuit current, maximum power, efficiency
and fill factor).