driving full bridge using ir2110

prakash · 11th March 2011, 05:20 AM

hi i have looked into the datasheets , ir application notes and still have problems hooking up ir2110 .
based on what i have read i have drawn the circuit . is ther anything to add.
has the pin Vb to b connected to anywhere , and Vcc to the ground . do i need a isolator like opto coupler to isolate the pic inputs and inputs of ir2110 . is Vdd and Vss the logic level inputs .

hope i am clear about my doubts .....anticipating your reply

luka · 11th March 2011, 06:14 AM

You need to supply 12v to Vcc... this has to be 12v above gnd of a fet, if grounds are not the same as on primary side

You do not need to insulate inputs, unless you say have pic on secondary side of supply, IR's are on primary
Vdd campared to Vss can be 5v only, 3v min from datasheet

11th March 2011, 05:20 AM	#1
prakash diyAudio Member Join Date: Mar 2011	driving full bridge using ir2110 hi i have looked into the datasheets , ir application notes and still have problems hooking up ir2110 . based on what i have read i have drawn the circuit . is ther anything to add. has the pin Vb to b connected to anywhere , and Vcc to the ground . do i need a isolator like opto coupler to isolate the pic inputs and inputs of ir2110 . is Vdd and Vss the logic level inputs . hope i am clear about my doubts .....anticipating your reply

11th March 2011, 06:14 AM	#2
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	You need to supply 12v to Vcc... this has to be 12v above gnd of a fet, if grounds are not the same as on primary side You do not need to insulate inputs, unless you say have pic on secondary side of supply, IR's are on primary Vdd campared to Vss can be 5v only, 3v min from datasheet __________________ home page @ http://www.classdaudio.co.cc @ 24/7 all year long I FEEL SLOVENIA

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