Transformer utilization factor of a center tapped full wave rectifier is equal to ___________(a) 0.623(b) 0.678(c) 0.693(d) 0.625I have been asked this question in an international level competition.My enquiry is from Fullwave Rectifier in division Diode Circuit of Analog Circuits

Transformer utilization factor of a center tapped full wave rectifier

1.	Transformer utilization factor of a center tapped full wave rectifier is equal to ___________(a) 0.623(b) 0.678(c) 0.693(d) 0.625I have been asked this question in an international level competition.My enquiry is from Fullwave Rectifier in division Diode Circuit of Analog Circuits
Answer» The correct choice is (c) 0.693 The explanation: Transformer UTILIZATION factor is the ratio of DC POWER supplied to the AC rating of the primary winding. The factor indicated the effectiveness of transformer usage by the RECTIFIER. For a center tapped full wave rectifier, it is equal to 0.81 w.r.t the primary winding, 0.57 w.r.t the secondary winding (DOUBLE of that of a half wave rectifier) and the average VALUE is 0.69.

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