Current Mode Control And Voltage Mode Control

jegandren · 25th February 2008, 06:49 AM

HI ALL,

Can anyone suggest me a PWM IC for current mode control and voltage mode control...that is used in a half bridge SMPS.

luka · 25th February 2008, 03:16 PM

Hi

Check Uc 3848, it is current cont.... some of the are both voltage and current, but you must know what you want, is that peak control, average,...Use google....

megajocke · 25th February 2008, 05:15 PM

Peak current mode and standard half bridge are not compatible without modification. Look at this for a solution:
http://www.fairchildsemi.com/an/AN/AN-7531.pdf

Voltage mode chips: TL494, SG3525

jegandren · 26th February 2008, 02:35 AM

Quote:

Originally posted by luka
Hi

Check Uc 3848, it is current cont.... some of the are both voltage and current, but you must know what you want, is that peak control, average,...Use google....

thank you . actually what i want is a peak current mode control.

megajocke · 26th February 2008, 08:26 AM

Then you will need a balancing winding, check out that application note from Fairchild for an example how it can be done.

25th February 2008, 06:49 AM	#1
jegandren diyAudio Member Join Date: Feb 2008	Current Mode Control And Voltage Mode Control HI ALL, Can anyone suggest me a PWM IC for current mode control and voltage mode control...that is used in a half bridge SMPS.

25th February 2008, 03:16 PM	#2
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	Hi Check Uc 3848, it is current cont.... some of the are both voltage and current, but you must know what you want, is that peak control, average,...Use google.... __________________ home page @ http://www.classdaudio.co.cc @ 24/7 all year long I FEEL SLOVENIA

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25th February 2008, 05:15 PM	#3
megajocke diyAudio Member Join Date: Jan 2003 Location: Solna	Peak current mode and standard half bridge are not compatible without modification. Look at this for a solution: http://www.fairchildsemi.com/an/AN/AN-7531.pdf Voltage mode chips: TL494, SG3525

26th February 2008, 08:26 AM	#5
megajocke diyAudio Member Join Date: Jan 2003 Location: Solna	Then you will need a balancing winding, check out that application note from Fairchild for an example how it can be done.

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