Recent content by Esquilo

Hi Mr. T, my problem came from the fact that according to the theory a capacitor accumulates only electrostatic (electrical) energy and in an rlc circuit, it discharges in an inductor, but if the inductor must transfer energy according to electromagnetic induction, how can the voltage of the...

yes thanks for the answer, ok I understand, so in an RLC circuit, in order for the inductor loaded by the capacitor to generate an electromagnetic induction which generates a variable voltage in the nearby conductors, the capacitor must have a lot of charge (Q) therefore a lot of voltage and...

hi berkemann thanks for your answer, I'm not creating a project, it's all theory, the circuit under consideration is an RLC, in which the capacitor charges an inductor. but as you confirmed to me, you need a lot of current (amps) for there to be a high magnetic field density. therefore I believe...

Hi berkerman i have the same question for you too I don't speak English and I'm just helping with the translator, yes the inductance depends on the physical characteristics of the coil, that's what I meant, and describes the ability of an inductor to oppose variations in current. but I still...

yes, sorry, I don't speak English and I'm just helping with the translator, yes the inductance depends on the physical characteristics of the coil, that's what I meant, and describes the ability of an inductor to oppose variations in current. but I still can't get my answers and that is, for...

thanks for your answer, I am taking into consideration an RLC circuit in parallel, what I don't understand is, in the capacitor which accumulates electric charge, after discharge in the inductor which accumulates in the form of magnetic energy, here, this inductor which has accumulated...

thanks for your answer, I am taking into consideration an RLC circuit in parallel, what I don't understand is, in the capacitor which accumulates electric charge, after discharge in the inductor which accumulates in the form of magnetic energy, here, this inductor which has accumulated...

Good morning, I can't understand a concept of electromagnetic induction. Then according to Biot Savart's law, at high and alternating currents (amperes) electromagnetic induction occurs in nearby conductors, if instead we have a capacitor (which accumulates a lot of voltage and a few amperes)...

hi, I tried to buy the item but I had problems paying in dollars. However, I have seen many academic articles about dipoles and coils with sparse windings, and only the various tests are listed, with the various data, but I want to know the formulas and understand, also because in the end they...

@berkeman I can't use the dish because I'm not using microwaves, but inductive coupling, and therefore energy transfer through magnetic fields, perhaps the dish can serve as a backiron to convey the rear magnetic field of the DCRS

good morning berkemann yes, the powers are very low, I only want to transfer a few mW, my aim is to study which of the two systems is the best, so my aim is educational. the dimensions I take into consideration are: solenoid length 40 cm, current intensity 10 mA, frequency from 20 to 200 khz...

unfortunately I don't have access to IEEE explore, there is the only study on DCRS, the performance of DCRS is 36% at a distance equal to the length of the solenoid, while for Halbach with the same frequency and length it should double.

Ok then berkerman, I would like to study wpt technology. The biggest problem is the decrease in efficiency as distance increases. Now I have two technologies, the DCRS and the halbach. The DCRS uses the presence of the ferrite core to increase the intensity of the magnetic field but it is not...

@berkeman What you think about this?

as @Baluncore said, the halbach array needs many precautions, for example we cannot use AC for the arrangement, but pulsed DC with low levels of phase shifts and with the addition of high-speed diodes at the ends. so both solutions have strengths and weaknesses but I would like to understand...