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Clamp circuit to tame automotive voltage transients
Posted: Apr 1, 2008 8:46 PM

Here's a circuit that clamps input voltage to a desired maximum voltage, while still retaining a lar...[ View complete article ]


Message: Clamp circuit to tame automotive voltage transients Post time: Apr 1, 2008 8:46 PM
 

Author: kttrench

Level: Interns

Points: 120

Here's a circuit that clamps input voltage to a desired maximum voltage, while still retaining a large current-delivering capability and minimizing losses during non-transient operation.
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( 1 ) Reply:Clamp circuit to tame automotive voltage transients Post time: Apr 1, 2008 8:46 PM
 

Author: kttrench

Level: Interns

Points: 120

firstly its beatiful design expample

dear author i have little doubt that is

1>Q1 begins to conduct current for input voltages greater than about 3V, and is fully enhanced at 4.5V
###i felt this is wrong as gate is floating MOSFET Q1can not conduct till VOLTAGE ACROSS DIODE D1 REACHES 15 v ( OR input crosses 15 V) , please correct me if i am wrong.
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( 2 ) Reply:Clamp circuit to tame automotive voltage transients Post time: Apr 1, 2008 8:48 PM
 

Author: kttrench

Level: Interns

Points: 120

Dear author
please elaborate on loop filter stability and design , Q2 gain control is not transparent
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