Element Selection for Voltage Doubler Design with Mathematical proof

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SUMMARY

The discussion focuses on designing a voltage doubler circuit that converts 115V-50Hz AC into 230V DC. Key mathematical considerations include determining the optimum capacitance value to minimize ripple and establishing the appropriate diode ratings. The user seeks guidance on the mathematical relationship between ripple and capacitance, as well as practical precautions such as heat management. Additional resources for understanding the underlying mathematics are also requested.

PREREQUISITES
  • Understanding of voltage doubler circuits
  • Knowledge of capacitance and its effect on ripple voltage
  • Familiarity with diode ratings and specifications
  • Basic principles of AC to DC conversion
NEXT STEPS
  • Research the mathematical relationship between ripple voltage and capacitance in voltage doubler circuits
  • Learn how to calculate diode ratings for voltage doubler applications
  • Explore heat management techniques in power electronics
  • Study resources on AC to DC conversion principles and practices
USEFUL FOR

Electrical engineers, hobbyists designing power supply circuits, and anyone involved in voltage doubler design and optimization.

sns
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I need to design a voltage doubler that takes in 115V-50Hz a.c. and produces a doubled voltage output of 230V dc.

I am using this circuit:

vd.GIF


I need help in the mathematics part:

i) How do I find the optimum value of capacitance? (Using high capacitance values reduces ripples; but can the mathematical relation between ripple and capacitance be found out? please help and if possible give source to study..)

ii) How can the diode rating req. be determined?

Any other suggestions kindly reply [regarding any precautions to be taken like heat issues etc. any practical issue I may be missing]. Also any text or website that can help on the underlying mathematics.. please help...
 
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sns said:
I need to design a voltage doubler that takes in 115V-50Hz a.c. and produces a doubled voltage output of 230V dc.

I am using this circuit:

vd.GIF


I need help in the mathematics part:

i) How do I find the optimum value of capacitance? (Using high capacitance values reduces ripples; but can the mathematical relation between ripple and capacitance be found out? please help and if possible give source to study..)

ii) How can the diode rating req. be determined?

Any other suggestions kindly reply [regarding any precautions to be taken like heat issues etc. any practical issue I may be missing]. Also any text or website that can help on the underlying mathematics.. please help...

What is the application? What are the output power requirements? What is your background in working with AC Mains voltages?
 

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