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Questions tagged [tank]

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1
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2answers
36 views

In a points ignition system, should the condenser(capacitor) be attached to the coil terminal or to the breaker points

Is there any difference in the function of the circuit if the capacitor has a shorter wire path to the coil or to the points?
0
votes
1answer
70 views

LC ringing on synchronous buck converter

I am working on a board that uses LTC3891 as a buck converter to step down 24V to 12V. There is quite a significant oscillation at the switching node, upstream to the inductor which I am curious about....
3
votes
2answers
114 views

DIY water tank gauge using analogue ammeter

Our (old) boat has a fresh water tank whose level was reported by a now broken gauge. For cosmetic reasons I need to replace the broken gauge with a similar form factor (I do not wish to cut the panel ...
0
votes
1answer
42 views

Series or parallel tank circuit?

The secondary of a transformer with a cap connected across it - should it be considered as a parallel tank circuit or a series one? It looks like parallel, but in reality the voltage rises on it when ...
0
votes
2answers
130 views

two tanks control problem [closed]

I have been trying to solve this problem for months now. I work as an Electrical Engineer in a tunnel project, we will use TBM machine to drill the underground station. We have two tanks in TBM for ...
0
votes
3answers
97 views

Why is there a constant -1A current through the voltage source at resonance?

Below circuit is at resonance. Shouldn't the circuit offer infinite impedance to the voltage source ? I thought, then the current through the source would be 0A. But the simulation shows that the ...
1
vote
1answer
96 views

Close Oscillators Problem

I have 3 "Emitter-Coupled" Oscillator, the difference is that I don't use a resistor on the tank circuit and I do vary the Inductor inductance. They're close on the PCB and they got some disturbs, if ...
0
votes
1answer
142 views

Equivalent R for Bandwidth of non-ideal parallel RLC circuit

I'm tasked with calculating the bandwidth of a tank circuit shown below. I can see that it is essentially a parallel RLC, for which I know BW=1/RC However that ...
0
votes
1answer
646 views

Mosfet Switched capacitor in LC tank

I need to coarse control the frequency of oscillation on a parallel resonant tank. The frequency band is in the 500kHz-1Mhz range, so the small capacitance of varactors doesn't suit the task. ...
-4
votes
1answer
315 views

20 Mhz AM transmitter and receiver - Receiver does not receive [closed]

I am doing a circuit for an AM transmitter and receiver. I extracted it from http://www.pyroelectro.com/projects/pyro_rf_receiver_27mhz/index.html. Receiver: I have already done the transmitter, ...
0
votes
2answers
753 views

Induction heater design - Current transformer windings ratio

I am currently building an induction heater and would like to verify my approach to this as I'm uncertain if it is correct. Below is the topology of the resonant tank circuit I have constructed. The ...
0
votes
1answer
51 views

Lowest Q factor than expected for a LRC paralel circuit

I tried to improve the Q factor for a tank in a LRC parallel circuit by a factor of 30. To do that I used an inductance that is 30 times smaller. To keep the same resonant frequency, I replaced the ...
0
votes
1answer
374 views

Why in a voltage driven parallel RLC circuit (at resonance), the current of the inductor has a DC component?

I'm refreshing my knowledge on LC/RLC circuits, and an interesting thing came up that puzzled me. I'm doing simulation on parallel a RLC circuit (in LTSpice), which is driven with a sine voltage ...
0
votes
1answer
2k views

LC tank Q factor

I am working on parallel LC tank. It is Rp // Lp // C . Rp = Rs( 1 + Q^2 ) Since inductor dominates capacitor under high frequency, Rs is parasitic resistance of inductor. It seems to me Q factor ...
5
votes
2answers
1k views

How does this oscillator work under a constant DC voltage?

Consider: How does the oscillator in this circuit work? A tank circuit can't oscillate when there is a constant DC voltage, am I wrong? I simulated the circuit in NI Multisim and couldn't observe any ...
2
votes
2answers
9k views

How to determine capacitor and inductor values for parallel tank circuit?

There is the formula \$\frac{1}{2 \pi\sqrt{LC}}\$, which can help find the value of the capacitor or the inductor if one of them is known. But if them both unknown and i would like to make a parallel ...
0
votes
2answers
134 views

How do you block a signal with a tank circuit?

I have a signal generator outputting 60 hz AC. I've connected the output to a capacitor (922uf) and inductor (0.0076H) which are in parallel with each other creating a tank circuit. These two values ...
0
votes
1answer
480 views

LC Tank Tuner for Super Regenerative Radio

There seems to be very little literature to explain the practical construction of a radio and how a super regenerative circuit actually act as a selector, amplifier, how a antenna is actually to be ...
0
votes
4answers
2k views

AC Circuit + Parallel resonant band-stop filter

My EE book says about this circuit: "The parallel LC components present a high impedance at resonant frequency, thereby blocking the signal from the load at that frequency. Conversely, it passes ...
1
vote
4answers
721 views

Why is this LC filter where it is, and what function does it perform?

My customer has a motor controller that apparently only works with an LC filter in front of it. This configuration trips out on undervoltage: simulate this circuit – Schematic created using ...
0
votes
1answer
3k views

LC tank circuit feeding on op-amp, no oscillation?

Based on what I learned during this experiment I've built the following circuit using an op-amp configured as a buffer... simulate this circuit – Schematic created using CircuitLab The ...
0
votes
1answer
132 views

maximum voltage that a colpit oscillator can withstand

I am working on a wireless power transfer project using, I need to design an oscillator. I need a frequency of over 2MHz and I need it for a high power application. So my question is what is the ...
2
votes
2answers
1k views

LC Oscillator, Tank Circuit

How does a tank circuit work with a dc power supply? I understand that if you charge a capacitor that's in parallel with an inductor and then remove the power supply then the capacitor and inductor ...
1
vote
2answers
3k views

Can a tank circuit store energy for a simple AC system?

If you take the circuit below, with the switch closed, assuming the Tank circuit is tuned to resonate at the same frequency as the source, then I would expect the tank to become charged, and the ...
-3
votes
3answers
373 views

Ideal LC Tank Circuit

It is true that connecting an Inductor (L) and a capacitor (C) in parallel provides oscillation? If so, where do you take the output from? Theoretically it is explained that once we connect L and C ...
17
votes
3answers
4k views

What operation could cause the inductor or the capacitor to explode?

In really early days of electronic school, the teacher used to say something about not unplug power too quickly at an inductor or capacitor and we were used to slowly turn the voltage generator from a ...
2
votes
1answer
167 views

What is the conductance of this LC tank?

So, I start with total conductance: $$ G_{TK} = \frac{1}{\frac{1}{j\omega C}+ 2R_C} + \frac{1}{j\omega L + R_L} $$ Then, when I take only the real part of this expression in order to know the ...
2
votes
2answers
5k views

Theory behind the “Joule Ringer” circuit

The less-than-critical thinking free energy types are pointing to the "Super Joule Ringer" demonstrations online, where a quick touch with a 9 V battery illuminates an LED for hours. http://...
2
votes
3answers
3k views

Voltage output from a tank circuit

I have the following tank circuit. Now at resonance of about 50.054 MHz, the output voltage should be same as input, as the tank circuit would have a high resistance. I have calculated the impedance ...