Inductive Vs. Capacitive discharging

[vinodquilon]

What is the difference between Inductive & Capacitive discharging ?

I think Capacitor discharges in the opposite direction of its charging. Does it change its polarity ?

And Inductor discharges in the same direction of its charging. Does it change its polarity ?

 

[Gary B]

The energy in a capacitive discharge spark is CV². Since the company I used to work for only made CD units, I don’t have the inductive discharge formula memorized but suspect it is going to be something like LI². Polarity should not normally be an issue since the resulting spark is only used to ignite something and the coil secondary output is just two wires ending in a spark gap.

 

[crutschow]

You are correct. A capacitor is like a spring, so the charge will come out the terminal with the same polarity, but the current flow is in the opposite direction of the charge current.

A inductor is like a weight with inertia, so the current will stay flowing in the same direction, but the polarity will reverse.

The stored energy is ½LI² for an inductor and ½CV² for a capacitor.

 

[MikeMl]

What is the difference between Inductive & Capacitive discharging ?

I think Capacitor discharges in the opposite direction of its charging. Does it change its polarity ?

And Inductor discharges in the same direction of its charging. Does it change its polarity ?

Look at this. Should answer all your questions

 

[vinodquilon]

You are correct. A capacitor is like a spring, so the charge will come out the terminal with the same polarity, but the current flow is in the opposite direction of the charge current.

A inductor is like a weight with inertia, so the current will stay flowing in the same direction, but the polarity will reverse.

The stored energy is ½LI² for an inductor and ½CV² for a capacitor.

Thanks for clear explanation...