How to connect IR2110 and H bridge

[Shakirel]

I want to use these drivers for an H bridge but havent figured how to properly connect them so that they work.
Here is the part of the schematic that includes them:
**broken link removed**
As this,when i put all of this on a test board it does not move a bit.
The upper mosfets should switch at 50Hz and the bottom ones at 8MHz.
The upper part of the H bridge ~350V
This is part of an inverter.
Thanks a lot for any advice.

 

[KRYCHEK]

Re: IR2110 and H bridge

i am wondering if anyone can help me.

Am building an high frequency switching inverter using the tl494,and using a H bridge,

can anyone assist me on how the H bridge converts dc back into ac, i mean how do i do this, and how do i get 50hz from this, many thanks

12vdc.....tl494...push-pull mosfets....transformer...bridge rectifier...h bridge...lc filter..

what i need to know is how to switch 2 on and 2 off at same time resulting in ac 220v ,

And how do i get 50hz, if u know
what i mean

If u have managed to got urs working shakirel pls do let us know

this is a mod-sine wave btw

many thanks

 

[dick_freebird]

IR2110 and H bridge

It seems to me that there must be app notes at mfrs such
as IR (http://www.irf.com) and Intersil (http://www.intersil.com) that cover
the basics such as this. But the basics only get you to the point
of blowing up your first board. Controlling leg shoot-through
and bridge cross-conduction are absolutely critical and often
cut-and-try. You would be well off to look for full bridge drivers
if you want more of this "handled" for you.

If it's 12V input then there will be a transformer somewhere,
to get your 220V.

While PCB design is also important, for your prototypes
you may want to mount the MOSFETs where, when they blow
up (and they likely will, several times, before you learn why),
they will not damage anything besides themselves.

 

[karesz]

IR2110 and H bridge

Hi,
The only first one and small problem: Q4 & 6 drains are shorted...
You must check IR appl.-notes, then you need lot of more in your circuit!
K.

 

[Tahmid]

IR2110 and H bridge

Hi,
1. As karesz mentioned, drains of Q4 and Q6 are shorted.
2. Place a 1k resistor from the gate to source of each MOSFET.
3. Reduce values of R4, R5, R7 and R8 from 100 ohms to about 10 to 22 ohms.
4. For D5 and D6, instead of 1N4007, use a fast-recovery diode like UF4007 or BYV26C.
Everything else seems somewhat okay.