Questions tagged [resonant]
The resonant tag has no usage guidance.
15
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Understanding the discrepancy between Input and Output power in ZVS Induction heater
I am using a ZVS induction heater like this:
Image Source
The schematic looks akin to this (schematic has not been tested)
Schematic Source
I modified it with IRF3205 N-Channel MOSFETs for better ...
1
vote
0
answers
28
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Best optotriac/phototriac for switching an inductor out of a circuit [closed]
I have the circuit below where I'm using a full bridge driver to drive an LC circuit (L1 and C1). I want to switch another inductor (L2) in and out of this circuit to alter the resonant frequency, on ...
0
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0
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Regarding the equation derivations of the resonant state of an asynchronous buck converter observing zero voltage switching
I'm currently reading this article of Bill Andreycak to understand the mathematics behind zero voltage switching: https://www.ti.com/lit/an/slua159/slua159.pdf?ts=1710666811170&ref_url=https%253A%...
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Piezoelectric disks gives higher output at a particular low frequency far from the resonant frequency?
I have a PZT disk attached to a shaker/vibration generator. The resonant frequency is 3.9kHz.
The following is the output of the PZT disk on the shaker, being shook at different frequencies.
One ...
0
votes
2
answers
109
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Asymmetric LC tank with diodes
Is there a circuit that can produce an asymmetric wave, where some parameters of positive and negative half waves are different, such as voltage amplitude or time?
Intuition says that we need a ...
0
votes
1
answer
60
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Make a tune-able resonant frequency
Using a long cable to a LC circuit reduced the resonant frequency, I reduced the inductance in order to increase the frequency; it worked. However the voltage amplitude decreased significantly. How ...
0
votes
3
answers
753
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Finding resonant frequency in a circuit with no inductor
I have a parallel circuit and I need to find its resonant frequency. However, there is only a capacitor paralleled with a resistor and there is no inductor included. So is it correct that in using the ...
2
votes
3
answers
308
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Building a capacitor, and the ESR is high. What can I do to reduce it?
I have an LC circuit, with an inductor of 1 mH, and a capacitor of around 1 nF. I built a capacitor using two aluminum plates and a dielectric material that I got from Amazon. When at resonance 144Khz ...
1
vote
2
answers
88
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Is Petersen coil in resonant network tuned also for capacitor banks?
Petersen coil is tuned every 2-3 minutes to compensate for a certain percentage of capacitive current in resonant grids during earth faults. But, if capacitor banks with ground connection are switched ...
0
votes
1
answer
152
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Finding ESR of LCR circuit?
I have an LCR circuit, and I am trying to find the ESR of a capacitor.
I bought a 820uH inductor , and an ultra-low 1000pF capacitor, and a 46.6ohm 1% tolerance resistor.
Below is my circuit with ...
0
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1
answer
274
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LC Driver burned Mosfet
I am using this circuit to drive my LC tank for my metal detector,
PWM is from esp8266, 3V3 max, operating frequency 6.1kHz, inducatance and capacitance are for reference (but are close enough)
It ...
0
votes
1
answer
182
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Resonant RF transformer using a piece of wire (no capacitors)
I'm curious if it is possible to build a spark-gap Tesla coil without using capacitors at all.
Basically, treating the primary and secondary as TX/RX antennas and cutting them to proper length so that ...
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3
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134
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Resonant LC filters on a spherical capacitor [closed]
In the setup below, the circles are plates of a capacitor, and there are two LC filters mounted on it.
Would the current prefer to pass via the filters if they are tuned to resonate at the frequency ...
2
votes
1
answer
515
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Skim excess power from a resonant circuit without draining it?
If you have a resonant circuit, oscillating at its self-resonant frequency, how would you extract the excess power without draining it fully? A high Q resonant transformer impedance matched to the ...
0
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1
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379
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What LC tank circuit is needed for a 318 MHz remote control 9 DIP switch for a garage door controller transmitter opener using the PT2262 IC?
I want to use the PT2262 remote control encoder to create a garage door remote. This is just for fun. (I realize I can get a universal controller 318 MHz 9-DIP switch remote for about $16.)
I was ...