complementary transistors needed

sss · 25th October 2003, 12:12 AM

hello

i need power mosfets to make an H bridge for switching pupose
specs needed
Vds>14V
Ids>30A
P>50W
i found only N channel types ,no complementary p channel.
does someone know any complementary pair with those specs?
thanx

Jocko Homo · 25th October 2003, 01:23 AM

Why do you want P-channel devices to make an H-bridge, for a "switcher"? There must be areason why all the commercial H-bridges out there all N-channel.

Jocko

JensRasmussen · 25th October 2003, 01:20 PM

I think the reason is that the on resistance (often) is lower for N-Channel types than for P's.

For a bridge I think you really only need on type.

\Jens

25th October 2003, 12:12 AM	#1
sss diyAudio Member Join Date: Jul 2003 Location: Israel , haifa	complementary transistors needed hello i need power mosfets to make an H bridge for switching pupose specs needed Vds>14V Ids>30A P>50W i found only N channel types ,no complementary p channel. does someone know any complementary pair with those specs? thanx

25th October 2003, 01:20 PM	#3
JensRasmussen diyAudio Member Join Date: Jul 2002 Location: Denmark - Jutland	Reason for N-channel I think the reason is that the on resistance (often) is lower for N-Channel types than for P's. For a bridge I think you really only need on type. \Jens

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25th October 2003, 01:23 AM	#2
Jocko Homo Banned Join Date: Feb 2002 Location: As far from the NOSsers as possible	Why do you want P-channel devices to make an H-bridge, for a "switcher"? There must be areason why all the commercial H-bridges out there all N-channel. Jocko

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