can someone explain how capacitor can store and output pulses?

Thread Starter

athena kiran

Joined Mar 28, 2018
9
am using capacitor which is charged and discharged by power MOSFET.sometimes the pulses are sustained, sometimes they become biphasic, sometimes they collapse.I have attached a data in which I gave 1millisecond 5 pulses and 5millisecond 5 pulses and recorded their peak to peak in y axis of graph .a,b,c,d,e are polyster capaciors in increasing order of capacitance from microfarad to millifarad in x axis of graph.The higher the capacitance the more pulse it can store ,but capacitor a shows max peak to peak voltage.can someone explain this
 

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dendad

Joined Feb 20, 2016
4,452
I don't really understand you question, and I don't think you really understand a capacitor.
One way you can think of a capacitor, if it is used as a filter across the signal, is like a water tank. A squirt of water (pulse) like from a hand water pump, goes into the tank. The flow of water out is not a squirt, it is more like a steady stream. The pulses are smoothed out to an average flow.
Just realize that this is a fairly poor illustration of one use of a capacitor, but this illistration does hold water ;)
 

Thread Starter

athena kiran

Joined Mar 28, 2018
9
I am using capacitor here as energy storage element .and thus i couldn't explain what i found in the graph.pk to pk values are from the oscilloscope.
 

dendad

Joined Feb 20, 2016
4,452
You really need to show a circuit, and the measuring points. I'm still unclear as to what you are actually doing and asking.
 
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