atmega 8 to drive mosfet help

[e.t_1]

hey.. i am kinda new to this embedded buisness. so i am building this h bridge dc motor controller with pwm. i have used atmega 8. the program is working like its should be. i have tested my ckt with led and i can increase.decrease the brightness of the led and change pulse coming from one port to another.. now my question is here...

i need to drive the hbridge... i got IRF630N ... i know the microcontroller gate pulse isnt enough to to drive the mosfet switches. i want to use uln2003. but i dont understand if this will be enough.. or if i need to use two uln2003 in cascade.. furthermore.. what do i do with the common gnd port.. and why doesnt uln2003 need any biasing?

thanks .. plz help me my project is due on the 20th

 

[nandhu015]

According to the datasheet one uln2003 is enough.

Read the datasheet before proceeding.

Nandhu

 

[e.t_1]

thanks bro.. u have no idea how much i appreciate your help thank you once again