ba221@FreeNet.Carleton.CA (Gaetan Mailloux) wrote:
>
>
>I have a sine wave inverter circuit , it's a mosfet output , it's work at
>24 volts, they don't give any particular mosfet number, but they just say
>that it need a 40 amp. mosfet, I have some MTP60N06HD it's mosfet with a
>Vdss of 60 volts max and 60 amp max.
>
>Since it's an inverter who work at 24 volts, is a 60 volt mosfet are
>quite OK for that 24 volts inverter ??
>
>Any potential problems ?
>
>Thank
>
>Gaetan
>
By the way the mosfet version of the circuit shown below can be
used to protect a switching element such as a power FET. Don't
try it with a bipolar. You may see secondary break down failure
demonstrated. This circuit makes it darn near imposible to destroy a FET
from low energy power line spikes or inductive kickback. The 45 volt
zener is selected to be VDS(max) minus 15 volts. Thus, in the case of the
60 volt parts above use a zener of less that 45 volts.
|
|___________
| |
__|___/ __|__
/ / \ 15v | L |
/---\ | O |
| | A |
_|_ | D |
45v \ / |_____|
----/ |
/ | ___| Drain
| |
| |
|_______|Gate (note the FET is N-Channel in this case.)
_|_ |
15v \ / |
-----/ |___ Source
/ | |
| |
| |
| |
| |
| |
| |
|___________|
|
|
Date: 22 Mar 1996 03:22:19 GMT
Original Subject: Re: About Mosfet voltage.