EUIHOON JUNG

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In this paper, a low-voltage CMOS Bandgap Reference(BGR) with CTAT (Complementary To Absolute Temperature) compensation is presented. The proposed BGR is simpler than the conventional BGR no need for PTAT (Proportional To Absolute Temperature) current and the reduced number of device (16 less BJTs, 8 less resistors, 2 less PMOS and 2 less NMOS). The(More)
  • E. Jung, H. Kim
  • 18th IEEE International Symposium on the Physical…
  • 2011
The optical degradation of white GaN-based light-emitting diodes stressed under dc current and temperatures were investigated. Rapid optical degradation accompanied with the change of chromatic properties and the evolution of leakage currents was attributed to the darkening of packaged materials and generation of defects.
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