0 votes 0 votes A step-up chopper is used to feed a load at $400$ $V$ $dc$ from a $250$ $V$ $dc$ source. The inductor current is continuous. If the ‘off’ time of the switch is $20$ $μs$, the switching frequency of the chopper in $kHz$ is ____________. Analog and Digital Electronics gate2014-ee-2 boost-converter numerical-answers + – makhdoom ghaya asked Feb 11, 2017 • retagged Dec 2, 2019 by go_editor makhdoom ghaya 9.4k points answer comment Share See all 0 reply Please log in or register to add a comment.