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previous: Aron Jack,So the diode I... -- 12/21/1999 6:20 AM

Re: Mosfet Splatting

12/21/1999 3:52 PM
AMZ	Re: Mosfet Splatting >>So the diode I am using is the "normal diode"??? I am connecting gate to drain. I looked at the connection diagram on the Shaka 3 schematic. The way you have it connected, the 1N34a is blocking conduction through the normal channel and you only have the reverse diode of the mosfet capable of passing a signal. One thing to keep in mind is that the Vf of the reverse diode is similar to a silicon diode (0.65v) and the normal mosfet g/d to s is much higher (3.8v). Measurements are from an IRF510 @ 7.5 ma. regards, Jack

12/21/1999 3:52 PM

AMZ

Re: Mosfet Splatting

>>So the diode I am using is the "normal diode"??? I am connecting gate to drain.

I looked at the connection diagram on the Shaka 3 schematic. The way you have it connected, the 1N34a is blocking conduction through the normal channel and you only have the reverse diode of the mosfet capable of passing a signal.

One thing to keep in mind is that the Vf of the reverse diode is similar to a silicon diode (0.65v) and the normal mosfet g/d to s is much higher (3.8v). Measurements are from an IRF510 @ 7.5 ma.

regards, Jack

Replies:

Aron OK, so I am using the reverse diode... -- 12/21/1999 7:35 PM