A single phase ac voltage controller is used to get an output ac voltage proportion to a certain firing angle α from a constant 400 r. M.S input ac source with 50 Hz frequency. A load can be considered as R (15 Ω) is connected across the output voltage. This load can't operate with a voltage less than 40 V and not more than 340 V. find the numerical output voltage if the firing is adjusted to 600 . Give all necessary explanations, derivations and illustrations. Find the accepted range of the firing α to meet R requirements simulate the circuit by PSIM then give the file you name followed by controller. Use a specific devices to show the load voltage, SCR voltage, source voltage and source current.