Why Does Full Wave Rectification Create Opposite Polarity in V1 and V2 Plates?

  • Thread starter Pranav Jha
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In summary, the two plates of V1 and V2 are driven by opposite ends of a centre-tapped transformer secondary winding, causing them to have opposite AC potentials. This results in the plate of V1 being positive while the plate of V2 is negative, as explained in the datasheet for the 5U4 full wave rectifier tube. The dc voltage is developed between the filament and the transformer center tap, as shown in the provided link.
  • #1
Pranav Jha
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http://www.tpub.com/neets/book6/22b.htm

"Throughout the period of time during which the plate of V2 is negative, the plate of V1 is positive". Can anyone please explain why this is the case?
 
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Pranav Jha said:
http://www.tpub.com/neets/book6/22b.htm

"Throughout the period of time during which the plate of V2 is negative, the plate of V1 is positive". Can anyone please explain why this is the case?

The two plates (anodes) are driven by the opposite ends of a centre-tapped transformer secondary winding. The AC potentials at the ends of such a winding with respect to the centre tap are in anti-phase to each other. That is to say, when one goes positive, the other goes negative.
 
  • #3
See datasheet for 5U4 full wave rectifier tube at

http://www.r-type.org/pdfs/5u4gb.pdf

The 5U4 filament is attached to the transformer CT

Bob S
 
  • #4

What is full wave rectification?

Full wave rectification is a process in which alternating current (AC) is converted into direct current (DC) by using a bridge rectifier. This allows for the flow of current in only one direction, resulting in a smoother and more consistent output.

How does full wave rectification differ from half wave rectification?

Full wave rectification uses a bridge rectifier to convert both the positive and negative halves of an AC signal into positive DC. Half wave rectification only converts one half of the AC signal, resulting in a less efficient conversion and a less steady output.

What are the benefits of full wave rectification?

Full wave rectification has a higher efficiency and produces a more stable output compared to half wave rectification. It also allows for the use of smaller and less expensive components, making it a more cost-effective solution.

What are the applications of full wave rectification?

Full wave rectification is commonly used in power supplies, battery chargers, and AC-DC converters. It is also used in various electronic devices and appliances, such as televisions, radios, and computers.

Are there any disadvantages to full wave rectification?

One potential disadvantage of full wave rectification is the production of higher harmonics, which can cause interference and distortion in the output signal. This can be mitigated by using filters or other techniques to reduce the harmonics.

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