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A new protection circuit for high-voltage current saturation of LEST

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6 Author(s)
Jeon, Byung-Chul ; Sch. of Electr. Eng., Seoul Nat. Univ., South Korea ; In-Hwan Ji ; Young-Hwan Choi ; Soo-Seong Kim
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A new protection circuit for high-voltage current saturation of a lateral emitter switched thyristor (LEST) is proposed. We fabricated this circuit by employing a widely used insulated gate bipolar transistor compatible process. A high-voltage current saturation exceeding 200 V was measured in the EST with the proposed protection circuit, while the current saturation of the conventional LEST is limited to 17 V by the breakdown of the lateral MOSFET.

Published in:
Electron Device Letters, IEEE  (Volume:26 ,  Issue: 3 )

Date of Publication: March 2005

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