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Unread 18-10-2012, 07:42
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Al Skierkiewicz Al Skierkiewicz is offline
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AKA: Big Al WFFA 2005
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Re: New Talon Speed Controller

Camren,
The type of locked antiphase PWM modulation that is used in the Talon is simply the method that used to turn on the FETs that provide motor currents. The FETs in the Talon, Victor and Jaguar all have diodes that provide a path back to the power supply while the motors are coasting or being pushed. This diode is a result of manufacture as I understand.

Rickie and Jon, not to mislead, the conformal coatings on the Victors protect the circuit board components, but the leads of the FETs are still sometimes exposed. Metal swarf still can kill a Victor but they are far more immune to this than the current TI/Luminary production Jaguars. I am going to guess (highly recommend) that the IFI production runs will contain the same conformal coatings as current Victor products. The really difficult component in the Jag to coat is the current sense resistor since this can dissipate large amounts of power/heat. However, if metal falls across it, there isn't likely to be any catastrophic failure since the value is so small.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.