I want to transfer power via induction.
I have done this successfully multiple times with multiple designs. For various reasons I am steering clear from more traditional methods, for one, so that I could potentially have a lot more current flow through my induction coil (which is just a single hollow copper loop) reliably.
Using a crystal oscillator and a volt regulator a have gotten a Flip Flip to perfectly oscillate Q and notQ to switch on the gates of my fast switching Logic Level MOSFETs. I have confirmed the Flip Flop outputs with an oscilloscope. I smoothed the power supply (10V) with a 2200 uF electrolytic Cap and added a parallel tuning cap for the LC tank. My circuit is working and transfering power wirelessly.
However, I am not opperating at the efficiency I expected. Previous models of mine that only use one MOSFET and one output of the flip flop are even performing much better. This design however is "off" half of the time, when the volts over the gate are zero. The MOSFET has to block a lot of current, gets really hot and prevents current flow at the level I would like.
My logic tells me that my design belowe should be on almost 100% of the time. First allowing current to flow top to bottom on my schematic, then vice versa. The flip flop first puts on the two top MOSFETs with Q, and then the bottom two with notQ.
I have built this design and it does work, but not as well as I hoped. I believe there must be some noise or feedback in the system preventing it from smoothly oscillating. Any help how I could potentially fix this problem would be of great help. Many thanks.