This is why series RLC tuned circuits are dangerous

113

02:16:37

RLC

published 9 years ago

hurz

9 years ago

Unrealistic high capacitance. I dont have such a cap. And before your are able to get in conntect with high voltage, the coil will burn. Because, 31A at 1.6Ohm DC resistance cause more then 700Watt heat!!

AlexWang

9 years ago

Too much current? Easyyyy, let's step up the current!!! Like a tesla coil, would be interesting to analyze the frequency response of that

AlexWang

9 years ago

*voltage

ggundap

9 years ago

Nothing will happen to the coil if it is rated for that current , but yes if the cap is not rated to this voltage it will blow. HV caps are available and 1 to 2 ohm 500w and above are available. Your power calculation is based on peak values, use rms value. It is implicit that the circuit components used are rated well above the required values.

hurz

9 years ago

(31.1A/SQRT(2))^2 * 1.6Ohm = 774W!!

ggundap

9 years ago

Yep you did use rms value

ggundap

9 years ago

Component values changed for low current and for bread board demonstration. The previous one for bulky circuit

Matus

9 years ago

Guys the thing that is really going to blow is my brain...

ggundap

9 years ago

Matus, Hope the components blow off and not your brain. In tuned RLC circuits, the series LC components introduced zero impedance at the tuned frequency, due to this the resulting current is only due to the resistor and in this situation the individual impedances at this current drop a dangerously high voltage ⚡ across them.

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