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### Course: Class 12 Physics (India)>Unit 14

Lesson 5: Rectifiers

# Full wave rectifiers

Half-wave rectifiers only keep the circuit on for half the time. To get more output we need a full wave rectifier In this video, let's see how we can build a full wave rectifier with just 2 diodes. Created by Mahesh Shenoy.

## Want to join the conversation?

• Why is the current not branching to the upper circuit after it passed through the phone battery . Isn't that junction a node?
Are they not connected?
• The upper circuit will become open
(1 vote)
• By adding the wire to the middle of the transformer aren't we also doubling the effective voltage as the number of coils in that circuit go down?
• Firstly, as he mentioned, the real problem was the alternating nature, not the voltage. Secondly, if you do add another wire in the middle, the number of turns do get halved and so does the voltage. The secondary voltage is directly proportional to the secondary turns.
(1 vote)
• In a centre taped rectifier, one diode conducts. That's what my teacher said. But in this video we can see both are conducting one at a time
(1 vote)
• Does it matter if the diodes are placed with P on right and N on left? Would this same setup work if they both were flipped?
(1 vote)
• How do Mobile companies like Xiaomi produce fast charging devices? Do their new battery chargers have more such circuits as shown in the video? Just curious
(1 vote)
• Couldn't we just add another diode parallel to the one in Half wave rectifier in opposite sense to make a Full wave rectifier? That way too we could have 2 circuits.