On Tue, 8 Sep 2009 12:18:23 -0600, "NOPE9" <yes@nope9.com> said:
> I am designing a high side driver to go with a low side driver to form  
> 1/2 of an H-bridge.
> I am using 1500V MOSFETs ( STW4N150 )
> http://www.st.com/stonline/products/literature/ds/11262/stp4n150.htm
> The spec says the turn on and turn off time for this MOSFET is about  
> 50 nsecs.
> 
> I have considered using an opto-isolator part.  Are there any that  
> have a speed around 50 nsec ?
> Or are there any other isolation techniques that would work ?

That's quite a radio transmitter you have planned :)

Cheerful regards,

Bob

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