How to convert a 100V SMPS to a 240V one?

zBuff · 18th July 2008, 10:18 PM

I don't know anything about SMPS design, but is there anyway I can learn a rudimentary amount of knowledge to learn how to do the different voltage conversions?

luka · 19th July 2008, 07:15 AM

Hi

If it is ready made, it could be simple as removing one bridge wire between input rectifier and main caps, that bridge enables 110v operation, without it 220v.

zBuff · 20th July 2008, 08:10 PM

Thanks for the help, I will have to take a closer look at the circuit to see if it is possible on it.

jtkraj · 21st July 2008, 11:00 AM

If the SMPS is built for 110V operation without and option for upgrading, its difficult to change the input voltage range.

you will have to change the MOSFET, Input filter components.

Even change the transformer windings for better efficiency.

golam · 21st July 2008, 02:31 PM

jtkraj is absolutely right. In SMPS, all the parameters are tightly calculated and applied and hence changing any parameter may not give optimum result if upgrading modalities are not included. Even it may hamper proper functioning.
Thanks.

18th July 2008, 10:18 PM	#1
zBuff diyAudio Member Join Date: Nov 2004 Location: NZ	How to convert a 100V SMPS to a 240V one? I don't know anything about SMPS design, but is there anyway I can learn a rudimentary amount of knowledge to learn how to do the different voltage conversions?

19th July 2008, 07:15 AM	#2
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	Hi If it is ready made, it could be simple as removing one bridge wire between input rectifier and main caps, that bridge enables 110v operation, without it 220v. __________________ home page @ http://www.classdaudio.co.cc @ 24/7 all year long I FEEL SLOVENIA

21st July 2008, 02:31 PM	#5
golam diyAudio Member Join Date: Jun 2008	jtkraj is absolutely right. In SMPS, all the parameters are tightly calculated and applied and hence changing any parameter may not give optimum result if upgrading modalities are not included. Even it may hamper proper functioning. Thanks. __________________ Microcontroller is the future in Electronics. মাইক্রোকন্ট্রলারই ইলেক্ট্রনিক্সের ভবিষ্যৎ।

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Commercial smps with 240v out	poynton	Power Supplies	2	8th September 2008 03:07 AM
How easy is it to convert from 110V AC to 240V AC?	spikeyfaz	Analog Line Level	19	26th December 2007 07:14 PM
Toroid or EE Ferrite core, which is Best for 240V mains SMPS	Workhorse	Power Supplies	49	6th February 2007 06:44 PM
Esoteric DV-50S convert from 100V to 240V????	young_pup	Digital Source	3	15th December 2005 03:29 PM
SMPS Power supply 350W 100v CT Regulated	Bent	Swap Meet	0	25th August 2005 07:57 AM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

20th July 2008, 08:10 PM	#3
zBuff diyAudio Member Join Date: Nov 2004 Location: NZ	Thanks for the help, I will have to take a closer look at the circuit to see if it is possible on it.

21st July 2008, 11:00 AM	#4
jtkraj diyAudio Member Join Date: Jun 2008	If the SMPS is built for 110V operation without and option for upgrading, its difficult to change the input voltage range. you will have to change the MOSFET, Input filter components. Even change the transformer windings for better efficiency.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read