hey all,
i am currently design power electronics protection circuitry for a robot that is to be attached to a transmission line (a power line inspection robot).
i have come up with a crowbar circuit consisting of a triac, zener TVS diodes, and snubber network which provide the protection. this is then followed by a bridge rectifier some filtering and finally a linear regulator. (see circuit attached)
the question i have, is, once the crowbar circuit activates, (assuming it is design properly) does the triac switch on and stay on?? that is to say, once the overcurrent/voltage transient is over does the circuit i have designed go back into normal operation or does the triac continue to short out the rest of the circuit???
also, i wud prefer the fuse to only blow of the additional inductance (L2`) cant handle to absorb the transients...this will be better since the technicians wont have to keep on bringing the robot down from the line to replace the fuse.
please, some advice would be highly appreciated.
Thank You
i am currently design power electronics protection circuitry for a robot that is to be attached to a transmission line (a power line inspection robot).
i have come up with a crowbar circuit consisting of a triac, zener TVS diodes, and snubber network which provide the protection. this is then followed by a bridge rectifier some filtering and finally a linear regulator. (see circuit attached)
the question i have, is, once the crowbar circuit activates, (assuming it is design properly) does the triac switch on and stay on?? that is to say, once the overcurrent/voltage transient is over does the circuit i have designed go back into normal operation or does the triac continue to short out the rest of the circuit???
also, i wud prefer the fuse to only blow of the additional inductance (L2`) cant handle to absorb the transients...this will be better since the technicians wont have to keep on bringing the robot down from the line to replace the fuse.
please, some advice would be highly appreciated.
Thank You
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