Dimmer with PNP channel mosfet

[aqustic206]

I want to do dimmer(10amper bulb) with ne 555.
But IRF9540 p channel mosfet is not enough for 10amper and the mosfet is warming
I want do use another p channel mosfet.Which do you think can I use p channel mosfet mosfet?

 

[Genovator]

You can use two or more IRF9540 transistors in parallel. refer to this link to see how 3n3055 is configured to supply 30amp.
each transistors shares current equally.

 

[dick_freebird]

Is it necessary that you chop the high side rather than the
low side? NMOSFETs are always cheaper than PMOSFETs
for the same voltage and current rating, within a family.

The 555 timer is way too weak to be a decent gate driver.
This may be part of your problem, too much time spent in
the linear region.