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Unread 15-07-2007, 01:03
sciguy125 sciguy125 is offline
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Re: HomeMade Motor Controllers

Quote:
Originally Posted by Adam Y. View Post
Also Power MOSFETs are different from regular MOSFETs because there is a diode included . If you look at a circuit symbol for a power MOSFET you will see that diode include.
I'm sure that power MOSFETs do have some differences in construction, but that diode is in all MOSFETs; it's part of the way they're built. This diode is called a parasitic because it exists, but isn't there intentionally. Attached is a drawing of a MOSFET with the parasitic diode in red. Note that the diode only exists when the source and body are connected (as it usually is).
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