Can a Series LC Circuit Effectively Drive MOSFET Gates?

AI Thread Summary
A series LC circuit can potentially drive MOSFET gates effectively when powered from a rectified voltage rail, using a resistor and transorb for stability. The circuit aims to utilize the 180-degree phase difference between the sine wave in the capacitor and coil to switch MOSFETs sequentially, enhancing efficiency. The design includes a diode that activates at a specific voltage level to provide deadtime between switching, reducing heat buildup. There is interest in finding suitable diodes that conduct at high frequencies and above a certain voltage threshold. Overall, the proposed circuit could work with additional safety and voltage control features.
Crazymechanic
Messages
831
Reaction score
12
Hi, I have built some stuff before mainly amplifiers and some power supply modules, tell me what you think of this.
I want to ask is it possible to have a series lc circuit that is powered from the rectified + rail through a resistor that gives me the correct voltage and transorb that would make the voltage even more stable then the voltage is fed to the series lc and from the series lc the voltage is extracted to drive the gates of the switch mosfets. Being that the sine wave in the capacitor and the coil is 180 degrees out of phase it should be good as I could switch one mosfet at a time , well ok I'll attach the picture because otherwise my speaking is hard to get I guess.

So what do you think can such a circuit (with additional features ofcourse like safety and voltage control) work?
Share your insight please.
 

Attachments

  • shema (2).jpg
    shema (2).jpg
    23 KB · Views: 608
Engineering news on Phys.org
Hi I'm sorry the image attache din the first post isn't the final one this is the better I saw some mistakes in that one, so could you please tell me if the principle I made in this schematic could work well enough.
By the way the place where the sine wave goes to the mosfet gates I would like to use a diode there that would turn on when the sine wave half period reaches certain value , that would give the "fets" some deadtime between switching and also less heat buildup in the devices as the switching would be sharper.

So I'm looking for diodes that let's say starts conduct forward above a certain voltage level and in high frequency.
A thyristor I imagine is one such device but it has gate that needs to be controlled.That complicates the schematic.
 

Attachments

  • schematic 1.jpg
    schematic 1.jpg
    36.8 KB · Views: 596
Hi all I have some confusion about piezoelectrical sensors combination. If i have three acoustic piezoelectrical sensors (with same receive sensitivity in dB ref V/1uPa) placed at specific distance, these sensors receive acoustic signal from a sound source placed at far field distance (Plane Wave) and from broadside. I receive output of these sensors through individual preamplifiers, add them through hardware like summer circuit adder or in software after digitization and in this way got an...
I have recently moved into a new (rather ancient) house and had a few trips of my Residual Current breaker. I dug out my old Socket tester which tell me the three pins are correct. But then the Red warning light tells me my socket(s) fail the loop test. I never had this before but my last house had an overhead supply with no Earth from the company. The tester said "get this checked" and the man said the (high but not ridiculous) earth resistance was acceptable. I stuck a new copper earth...
I am not an electrical engineering student, but a lowly apprentice electrician. I learn both on the job and also take classes for my apprenticeship. I recently wired my first transformer and I understand that the neutral and ground are bonded together in the transformer or in the service. What I don't understand is, if the neutral is a current carrying conductor, which is then bonded to the ground conductor, why does current only flow back to its source and not on the ground path...
Back
Top