IR2112 please help needed urgently

Status
Not open for further replies.
N

nup

Junior Member level 2
Joined
Sep 17, 2012
Messages
23
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Activity points
1,435
i got the attached circuit dig. from another thread in this forum. i just ned to know wat is the input given to the hin and lin pin of the ir2112.
please i have no idea wat should be the input and i need to know about it fast.
 

Attachments

  • fig 2.jpg
    27.8 KB · Views: 86

HIN Logic input for high side gate driver output (HO), in phase
LIN Logic input for low side gate driver output (LO), in phase
Logic inputs are compatible with standard CMOS or LSTTL outputs, down to 3.3V logic.
 

A high signal to the HIN pin drives the high-side MOSFET on. A low signal drives it off.

A high signal to the LIN pin drives the low-side MOSFET on. A low signal drives it off.

You can not keep the high-side MOSFET on for more than a specified amount of time, dictated by the size of the bootstrap capacitor.

You would want to generate pulses to alternately drive the high-side and low-side MOSFETs. Make sure you have a small "dead-time" to avoid cross-conduction between high and low side MOSFETs (which would just create a short-circuit).

Hope this helps.
Tahmid.
 

i need to ask one more question..
i have to simulate this circuit in Pspice so should i use Vpulse to give pulses to HIN and make LIN grounded or should i do something else??

thanks a lot.. i have very less idea about IR2112..

- - - Updated - - -

i have made the attached circuit in pspice but not getting the output can u please tell wat is the mistake..
 

Attachments

  • ir2110.jpg
    60 KB · Views: 70

This is another circuit with flip flop and i am getting the following error
Model IO_AC used by X-U5A, Uff11 is undefined0.
what does this error means?
and how to solve it.

please tell..
thanks..
 

Attachments

  • ffir2110.jpg
    66.2 KB · Views: 70

This my solution og full H-bridge with delay circuit...
 

Attachments

  • Mosfet drive.pdf
    47.7 KB · Views: 66

thanks a lot electronicsbasecom
i just want a simple driver circuit using IR2110/2/3.

but thank you very much for uploading....

- - - Updated - - -

nup said:
This is another circuit with flip flop and i am getting the following error
Model IO_AC used by X-U5A, Uff11 is undefined0.
what does this error means?
and how to solve it.

please tell..
thanks..
Click to expand...

hey that error cleared but now i am getting error of floating nodes for (resistance diode parallel pair)..... wat to do??

and if i put a ground bteween the diode and resistor that error goes but the output becomes 0..

i am so fed up of these errors...please help me solve them..
 
Last edited:

 

salam;
in ic(u2) the hin (pin10) of ic is the controll of q2 and similarly lin (pin12)is the controll pin of q3
you can switch on the q2 by applying 8v to 15v on pin hin and switch of q2 by applying 0v on this pin
similarly lin is the controll of q3
same theory apply on ic1
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…