LTSPICE simulation of AC/DC converter

[raviks1999]

Need help in identifying a LTSPICE model for implementing AC-DC converter (230v,AC to 28v DC ,147 A)

 

[ChrisP58]

Most parts from Analog Devices are modeled in LT Spice.
So, go to www.Analog.com >Products > Power management.
From there, find a part that meets your needs.

 

[srilatha]

Most parts from Analog Devices are modeled in LT Spice.
So, go to www.Analog.com >Products > Power management.
From there, find a part that meets your needs.

all the converters which are available is max 5A rating ,I require 150A

 

[rjenkinsgb]

You would need a switched-mode controller IC plus separate power devices and drivers for those.

Or use a conventional switch-mode PSU system; control at the 230V AC side of a transformer, and feedback from the lower voltage side after rectification.

That means controlling much lower currents.

 

[raviks1999]

can you further elaborate on this ..it would e very helpfulas i am new to design .....especialy this statement :You would need a switched-mode controller IC plus separate power devices and drivers for those.

 

[raviks1999]

where are the switched mode controller ICs available ..can we get a model of it in LTSPICE etc? and what are the power devices and drivers you are talking about? can you give me some example IC numbers for these ??

 

[srilatha]

AC-DC converter (230v,AC to 28v DC ,147 A) - it can be readily available IC or design

 

[rjenkinsgb]

AC-DC converter (230v,AC to 28v DC ,147 A) - it can be readily available IC or design

There is no "single IC" solution, the power rating is orders of magnitude too high.

That system will be handling power input in excess of 4000 Watts - into the range of industrial welding machines and too great a power for normal domestic outlets.

It is a very complex and specialised design, which in a DIY version is very likely to destroy many expensive parts during its development and testing!

This is a commercial PSU with similar ratings, around 170A @ 28V:

https://www.farnell.com/datasheets/2724912.pdf

(Many "24V" PSUs are adjustable up to 28V).

They are almost 500mm long and weigh around 10Kg!


This the an interior view of a similar but slightly lower power one:

I've been designing electronics as a profession for over 40 years, and I would not consider trying to design anything comparable - it's a very specialised field, and you could well get through many thousands of pounds worth of parts before ending up with a workable product.

It's worthwhile for companies that will be mass-producing them, but not otherwise!

 

[srilatha]

There is no "single IC" solution, the power rating is orders of magnitude too high.

That system will be handling power input in excess of 4000 Watts - into the range of industrial welding machines and too great a power for normal domestic outlets.

It is a very complex and specialised design, which in a DIY version is very likely to destroy many expensive parts during its development and testing!

This is a commercial PSU with similar ratings, around 170A @ 28V:

https://www.farnell.com/datasheets/2724912.pdf

(Many "24V" PSUs are adjustable up to 28V).

They are almost 500mm long and weigh around 10Kg!


This the an interior view of a similar but slightly lower power one:

I've been designing electronics as a profession for over 40 years, and I would not consider trying to design anything comparable - it's a very specialised field, and you could well get through many thousands of pounds worth of parts before ending up with a workable product.

It's worthwhile for companies that will be mass-producing them, but not otherwise!

could u pls guide ,how to proceed designing the circuit AC-DC (230v AC ,28v,147A DC)

 

[alec_t]

could u pls guide ,how to proceed designing the circuit AC-DC (230v AC ,28v,147A DC)

Re-read post #8. You would need to consult a specialist in this field. Expect to pay serious money for the necessary advice. What is your budget for this project?

 

[rjenkinsgb]

could u pls guide ,how to proceed designing the circuit AC-DC (230v AC ,28v,147A DC)

Simply, NO! The costs and dangers involved are major - and far worse for someone who has little understanding of electronics.

You just do not appear to appreciate the scale of such a task - it's like comparing the work designing a small remote control model car (eg. typical small electronics power supply) to a full size road legal car!


Study these:

ST make some development kits for a 3000W design; there are two parts; these are the data sheets with schematics for each:

First half: The AC input and power factor correction stage:

https://www.st.com/resource/en/data_brief/steval-ipfc01v1.pdf

Second half: voltage conversion - it's for 48V but the only difference would be the transformer windings and feedback components:

https://www.st.com/resource/en/data_brief/steval-dpsllck1.pdf

Work through each schematic diagram and look up the data for every single part.

 

[srilatha]

Simply, NO! The costs and dangers involved are major - and far worse for someone who has little understanding of electronics.

You just do not appear to appreciate the scale of such a task - it's like comparing the work designing a small remote control model car (eg. typical small electronics power supply) to a full size road legal car!


Study these:

ST make some development kits for a 3000W design; there are two parts; these are the data sheets with schematics for each:

First half: The AC input and power factor correction stage:

https://www.st.com/resource/en/data_brief/steval-ipfc01v1.pdf

Second half: voltage conversion - it's for 48V but the only difference would be the transformer windings and feedback components:

https://www.st.com/resource/en/data_brief/steval-dpsllck1.pdf

Work through each schematic diagram and look up the data for every single part.

thanks for the information