Question: It is required to control the average voltage of a 3 ohms and 20uH inductive load connected to a 12VDC source. They have IRLZ44N mosfets,

It is required to control the average voltage of a 3 ohms and 20uH inductive load connected to a 12VDC source. They have IRLZ44N mosfets, whose characteristics are: VDS of 55VCd, IDSon 47A, VGSon of 3.25Vcd, an RDon of 22mohms, a Qc of 48nF and a Ton of 11ns. Design the control stage to control the load with an LVT mcu at a frequency of 20KHz with a minimum Duty of 1%.

What is the average voltage with a Duty of 1%, 22% and 43%?
What is the current need to turn on the MOSFET with a Duty of 1%?
What would be the Ton of the mosfet for an IOH of 20mA and what would be the minimum Duty?

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