ATT Test 7 Questions with Correct Answers

ATT Test 7 Questions with Correct Answers Pulsating DC - ANSWER ️️ Current that varies in amplitude but does not reverse polarity `Not alt. Current because polarity remains the same Protection. - ANSWER ️️ Optional section in an scr power supply. Prevents damage to power supply from excess current flow AC to DC - ANSWER ️️ Diode reflecters Power Supply - ANSWER ️️ AC to DC Half Wave Diode Reflector - ANSWER ️️ AC to DC (VDC=VPeak of secondary x .318) Full Wave Diode Rectifier - ANSWER ️️ AC to DC VAVG= [VPP/2] x .636 If center tapped: VAVG= [VPP/4] x .636 Diodes preform reflection 180° out of phase Bridge Diode Rectifier - ANSWER ️️ Only conducts if forward biased (VAVG= VPEAK x .636) Output: pulsating DC Half Wave rectifier freq - ANSWER ️️ Ripple req: same as input freq Full wave rectifier freq - ANSWER ️️ Ripple freq: twice input freq With half VPEAK output