Voltage Dropped with Mysterious Reason!

Thread Starter

SUNGYONGWOO

Joined Jun 19, 2020
3
I've tried to turn on small calculator (Rated Voltage : 1.5V) with charged capacitor C.

Anyway when I connected fully charged cap to load. Then voltages dropped down with mysterious reason.


In detail, I used TENG to voltage source, (TENG is a pretty similar source to PIEZO .)

To turn on rated voltage 1.5V calculator, I charged enough 2V to cap.
Next step, I connected 2V charged cap to calculator.
It doesn't work.

How can I make this situation better?



Here is the circuit diagram what I designed.
1592552589515.png
And this is voltage curve measured by voltmeter.

You can see voltage drop after connecting to load
1592552680156.png
 

DarthVolta

Joined Jan 27, 2015
476
With the inductor and switch, are you trying to make a boost converter ? If the switch was a BJT or MOSFET and turned on/off rapidly, like 10,000's of times a second, in order for the current to keep flowing in the same direction in the inductor, when the switch open's it should make a voltage higher on the cap side, and lower on the diode side...and create a higher voltage that u started with. But you have a transformer/FWR, that should be over 1.5V with any size thransformer, and tank cap. ......or have 3 beers gotton to me
 
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