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Design Current Over Protection Circuit for NMOS driver

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coolstuff07

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Hi All,

Can any one help me what architecture of CMOS over current protection circuit suits for NMOS driver.

Bye.
 

varunkant2k

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You need to sense the current by some means, ( copy the part of NMOS current by current mirror, or add the resistor sense at the source of NMOS) . This current then you can convert to voltage and using feed back path to control the gate voltage of NMOS.
 
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