Re: High side driving N-channel Mosfet with PWM

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#1885

From: Phil Allison
Date: Mon, 05 May 2008 13:53

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"Phil in Melbourne"

> I want to PWM a whole lot of LEDs. The current consumption of the bank of 
> LEDs is in the order of 15 Amps, at 12V.
>
> For reasons I won't go into, my only option is to use a high side mosfet.


**  How very dubious ....


> I have chosen an N-channel MOSFET (IRL3803) mainly because of its huge 
> current capability and very low on resistance of 7 milli ohms.
>
> I am hoping to use PWM at a reasonably high frequency, say 20khz or 
> higher,


** What the bloody hell for ?????

That is just as idiotic and dubious as your first requirement.


> and I want to use an efficient MOSFET driver IC that is designed for the 
> job.


**  YOU  want  FAR  too many weird sounding things YOU  cannot  JUSTIFY !!

 So  THAT  makes  YOU another fuckwit,  time wasting,  PITA fucking TROLL.


 Try proving me wrong, anytime -   pal.



.....  Phil

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From: "Phil Allison" <philallison@tpg.com.au>
Newsgroups: sci.electronics.design,aus.electronics
Subject: Re: High side driving N-channel Mosfet with PWM
Date: Mon, 5 May 2008 23:53:50 +1000
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