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Is it possible to make an IGBT to work at duty cycles up to 100%?

I am designing an IGBT based chopper with single Low side switching IGBT (chosen low side switching because ease of driving the IGBT.) There are plenty of resources available for SMPS (buck, boost, ...
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+100

How are unbalanced coaxial cables used for broadcasting TV signals without any problems?

As far as I know, in telephony STP or twisted pair cables are used. This creates balanced line impedances which is useful to mitigate for common mode related interference. So using balanced cables in ...