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Switches used in VSI are ___________(a) Unipolar & Unidirectional(b) Bipolar & Bidirectional(c) Unipolar & Bidirectional(d) UnidirectionalThis question was posed to me in an internship interview.This interesting question is from Solid-State Switching Circuits in chapter Introduction to Solid-State Switching Circuits of Electric Drives

Answer»

Correct answer is (c) UNIPOLAR & Bidirectional

Explanation: Switches used in VSI are unipolar and bidirectional in NATURE. MOSFET, BJT are the examples of switches used in VSI. The output voltage of VSI is fixed but the output CURRENT DEPENDS upon the load.



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