Why Does Fullwave Bridge Rectification Raise Voltage by 1.41?

  • Thread starter Thread starter rytmenpinne
  • Start date Start date
  • Tags Tags
    Bridge Voltage
Click For Summary
SUMMARY

Fullwave bridge rectification raises voltage by a factor of 1.41 due to the relationship between RMS voltage and peak voltage, where the equation V_p = \sqrt{2}V_{rms} applies. This factor arises because transformer secondary ratings are specified in RMS voltage rather than peak voltage. Additionally, a bridge rectifier configuration results in a voltage drop of approximately 1.4 volts due to the current passing through two diodes. Understanding these principles clarifies the behavior of voltage in rectification circuits.

PREREQUISITES
  • Understanding of AC and DC voltage concepts
  • Familiarity with transformer secondary ratings
  • Knowledge of diode behavior in rectification
  • Basic grasp of electrical engineering principles
NEXT STEPS
  • Research the operation of fullwave bridge rectifiers
  • Study the differences between RMS and peak voltage
  • Learn about voltage drops across diodes in circuits
  • Explore transformer design and specifications
USEFUL FOR

Electrical engineers, students studying circuit design, and anyone interested in understanding rectification processes in power electronics.

rytmenpinne
Messages
5
Reaction score
0
..fullwave bridge rectification raise the voltage *1.41? I scanned the net but I can't find an explanation as to why, only that it does..
 
Engineering news on Phys.org
Remember, ac voltage is really regarding RMS voltage, and hence,
\sqrt{2}V_{rms}=V_p
where
\sqrt{2}=1.41...
 
Aah, so basically what's going on here is that the secondary ratings on transformers is given in RMS? and not peak?
 
rytmenpinne said:
Aah, so basically what's going on here is that the secondary ratings on transformers is given in RMS? and not peak?
That's correct. Also note that a bridge rectifier will have the current passing through two diodes, so the output voltage will be 1.4 volts less than the peak.
 
Good! thank you both! the world now makes sense again
 

Similar threads

Design of a CW multiplier circuit
  • · Replies 22 ·
Replies
22
Views
4K
Why does Piezoelectric output voltage dropped when load is added?
  • · Replies 12 ·
Replies
12
Views
3K
Resistive heating power AC vs rectified AC/DC
  • · Replies 10 ·
Replies
10
Views
4K
Why does the amperage go real high if there is a low voltage short?
  • · Replies 17 ·
Replies
17
Views
977
High ouput power voltage using half bridge resonant
  • · Replies 5 ·
Replies
5
Views
3K
Describing the voltage out of a rectifier
  • · Replies 20 ·
Replies
20
Views
5K
Follow-up question about my understanding on rectification
  • · Replies 4 ·
Replies
4
Views
1K
Understanding Dual Output Zener PSU
  • · Replies 7 ·
Replies
7
Views
4K
At the atomic level, why is voltage added when batteries are connected in series?
  • · Replies 2 ·
Replies
2
Views
2K
Electric field around a circuit
  • · Replies 14 ·
Replies
14
Views
3K