Develop the analytical expressions for the "Results' and Worst$-$case stresses' of the forward converter spreadsheet design example of Table $6\mathrm{.}2.$

Enter the formulas you developed in part $($a$)$ into a computer spreadsheet, and verify that your computed values agree with those of Table $6\mathrm{.}2.$

It is desired to reduce the forward converter peak transistor voltage to a value no greater than $650$ V$.$ Modify the design numbers to accomplish this, and briefly discuss the effect on the other component stresses.

For these specifications, what is the largest possible value of the transistor utilization of the CCM forward convener? How should the spreadsheet design variables be chosen to attain the maximum transistor utilization?