Author Topic: The Best Full bridge control IC  (Read 3132 times)

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Offline FaringdonTopic starter

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The Best Full bridge control IC
« on: November 26, 2023, 05:28:08 pm »
We need to do Full Bridge, 120W, Vin = 90VDC, 24Vout, FSW 100-200kHz we'll see.
We need overload protection.
Its best to just use a cheap, simple , 8pin, single output, current mode controller (one that has inbuilt overload protection) and add D Type, Buffers, Dual Analog switch and FET drivers…as attached..
But nobody does this.

There is no offTheShelf Full Bridge driver IC with  inBuilt Overload protection….the extra components here are cheaper than having a Full Bridge control IC with the added components to do overload protection.
So why is it not done? (I take many apart...nobody do this.)
« Last Edit: November 26, 2023, 05:51:10 pm by Faringdon »
'Perfection' is the enemy of 'perfectly satisfactory'
 

Offline analityk

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Re: The Best Full bridge control IC
« Reply #1 on: November 26, 2023, 10:18:20 pm »
It is quite weird configuration. Why not use halfbridge or HB-LLC?
From the other side there are full bridge phase shift integrated controllers, it seems to be overdesigned but it will work.
UCC28950, LTC1922-1, HIP4081AIBZ-ND
 
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Offline youngda9

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Re: The Best Full bridge control IC
« Reply #2 on: January 17, 2024, 09:55:06 am »
I've used the LTC3722-1 quite successfully on several designs.
 
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Offline jbb

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Re: The Best Full bridge control IC
« Reply #3 on: January 17, 2024, 09:12:36 pm »
Well, the best I’ve used personally is the TMS320F28335 from Texas Instruments >:D
 

Offline pcprogrammer

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Re: The Best Full bridge control IC
« Reply #4 on: January 17, 2024, 09:20:09 pm »
Well, the best I’ve used personally is the TMS320F28335 from Texas Instruments >:D

Yes, that one is very good. No need for all these external components.  :clap:

Offline jonpaul

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Re: The Best Full bridge control IC
« Reply #5 on: January 20, 2024, 03:30:38 pm »
FTTS: FW br is nuts for such low W.

The simple engineers solution: Use a flyback or foward, ONE device, no floating drives.

j
Jean-Paul  the Internet Dinosaur
 


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