gatedriver
Junior Member level 1
Hi everyone,
I am doing simulation gate driver by Orcad - pspice. But i met so many problem with this device.
- gate driver model: IR2106 (downloaded from IR website)
- PWM input are square waves (1kHz) from 0-3.3V
- It also included delay time 0.4us for dead time
- the type of diode is fast reverse recovery
When I simulated this gate drive sepearate, The ouput signals on HO, LO pins are ok.
But when I applied power circuit (half bridge), the convergence problem always happen.
The problem report usually mention the errors relate to some diodes of of IR2106 and switches.
My silmulation settling:
TSTOP 2.5ms
Maximum step 0.1u (some time I increase to 12u, but the same result)
RELTOL 0.1; VNTOL 0.1; ABSTOL 1u; CHGTOL 0.01N; ITL4 150; ITL1 500;
I do this simulation during two weeks, but the result is always convergence problem.
Could anyone please help me to solve this problem?![gatedrive2.gif gatedrive2.gif](https://www.edaboard.com/data/attachments/8/8139-0cecd5bfe704b3c5c8bfae9a56a73605.jpg)
![gatedrive1.gif gatedrive1.gif](https://www.edaboard.com/data/attachments/8/8140-cf320287c9a81fd82b1936f684e16bc8.jpg)
Thank you very much!
I am doing simulation gate driver by Orcad - pspice. But i met so many problem with this device.
- gate driver model: IR2106 (downloaded from IR website)
- PWM input are square waves (1kHz) from 0-3.3V
- It also included delay time 0.4us for dead time
- the type of diode is fast reverse recovery
When I simulated this gate drive sepearate, The ouput signals on HO, LO pins are ok.
But when I applied power circuit (half bridge), the convergence problem always happen.
The problem report usually mention the errors relate to some diodes of of IR2106 and switches.
My silmulation settling:
TSTOP 2.5ms
Maximum step 0.1u (some time I increase to 12u, but the same result)
RELTOL 0.1; VNTOL 0.1; ABSTOL 1u; CHGTOL 0.01N; ITL4 150; ITL1 500;
I do this simulation during two weeks, but the result is always convergence problem.
Could anyone please help me to solve this problem?
![gatedrive2.gif gatedrive2.gif](https://www.edaboard.com/data/attachments/8/8139-0cecd5bfe704b3c5c8bfae9a56a73605.jpg)
![gatedrive1.gif gatedrive1.gif](https://www.edaboard.com/data/attachments/8/8140-cf320287c9a81fd82b1936f684e16bc8.jpg)
Thank you very much!
Attachments
Last edited: