Can capacitor be increased in voltage with series diode and inductor.

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russwr

Joined Aug 29, 2017
123
Can electrolytic 1uf capacitor be greatly increased in voltage, to over 100v, (like a boost converter), by half wave pulsing DC 35v going in SERIES through diode, l inductor coil, diode, l inductor coil, and diode to capacitor, without using DC resonant pulse charging? The off time allows for back EMF of coils to add forward.
 

DickCappels

Joined Aug 21, 2008
10,661
Try it with the L as the input, the C from the output side of the L to ground. The waveform amplitude across the capacitor can become large when driven at the circuit's resonant circuit. A diode from the capacitor can rectify the AC to get you a DC output. You must use a non-polarized capacitor to resonate with the coil, a "normal" electrolytic will not work.

"...without using DC resonant pulse charging?" Not sure what you mean by this, but you must operate near or preferably at the LC resonant frequency to get the voltage multiplication effect.
 

BobaMosfet

Joined Jul 1, 2009
2,211
Can electrolytic 1uf capacitor be greatly increased in voltage, to over 100v, (like a boost converter), by half wave pulsing DC 35v going in SERIES through diode, l inductor coil, diode, l inductor coil, and diode to capacitor, without using DC resonant pulse charging? The off time allows for back EMF of coils to add forward.
You're not asking the right question. It's marked on your .1uF capacitor what it's voltage rating is. You cannot exceed that or you blow through the internals of the capacitor. You must get a .1uF cap that is rated for 100V.
 

crutschow

Joined Mar 14, 2008
38,316
Can electrolytic 1uf capacitor be greatly increased in voltage, to over 100v, (like a boost converter), by half wave pulsing DC 35v going in SERIES through diode, l inductor coil, diode, l inductor coil, and diode to capacitor, without using DC resonant pulse charging?
There is no advantage to using more than one inductor-diode to do that charging.
It will not increase the voltage above using one inductor equal in inductance to the sum of the multiple inductances.
 

MisterBill2

Joined Jan 23, 2018
27,159
The short answer to the original question is YES, while the best answer is "yes, BUT, there is more to it". Look up the circuit of a BOOST switching power supply and see that every part and every connection matters.
 
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