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Calculate the value of the conduction angle for diode for R-L load with a freewheeling diode if the value of β is 226°. (Discontinuous conduction mode)

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Calculate the value of the conduction angle for diode for R-L load with a freewheeling diode if the value of β is 226°. (Discontinuous conduction mode)

(a) 40°

(b) 45°

(c) 50°

(d) 46°

This question was posed to me during an online exam.

My doubt is from Solid-State Switching Circuits in division Introduction to Solid-State Switching Circuits of Electric Drives

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Right choice is (b) 45°

The explanation: The conduction angle for diode for R-L load with a freewheeling diode is β-π=226°-180°=45°. R-L load is a current stiff type of load.

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