plan-a

The cognitive process starts bearing fruit!

Intermediary step in cognitive process...

Just a few hours later, having it put in communicable form helps further with the cognitive process apparently. Which is a benefit of getting prepared vs not...

PCBoard layout matters in consideration. Like inclusion of close-loop control via measuring voltage of both the workcoil's electrical AND magnetic fields... Etc.

Removal of an extra-bending operation made sense and even resulted in many more possibilities... Not just a Royer secondary, but also as AC sensor measuring the magnetic field + susceptor response, while voltage across a power resistor conveniently provides an electric-field voltage (Prot., PLL)...

Multi-Phase/Multi-Poles modular design for PCBoard accomodating many "stuffing" options.

About getting polarities right (which is which?!)... Please help pass the word: https:// i.postimg.cc/cC0WGXbP/Egzoset-s-2-Sides-6-5-sq-cm-Transparent-View-on-LAVAWand-compat-2-5-D-IH-Work-Coil-s-Assy-640x6.png

A versatile Flat Magnetics/Multi-Level Switched-Capacitor(s) Class-D solution creating/enhancing fault-tolerance, by elimination of potential compounded risk factor from typical power contacts MUTIPLICATION around AMOVIBLE series-connected Battery cells (4 contacts if 2 cells, or 6 for 3!)...

Alt. source: https://i.postimg.cc/Px8sxcbm/Egzoset-s-Concept-of-a-Flat-2-5-D-composite-U-Core-s-Work-Coil-Assembly-2021-Jan-20-420x440.png

Alt. source: https://i.postimg.cc/fLVVHGPS/Egzoset-s-U-Core-Alt-Windings-for-Flat-9-5-mm-Magnetics-with-5-mm-dia-Core-2021-Jan-19-480x26.png

An idea to help make it slim, eventually, by bringing the 2 poles on same side while the other is bridged using some "U" shaped core... Paving the way to a reasonably thin 2.5-D WorkCoil Assembly (e.g. with pseudo "Z" axis, by allowing multiple convenient workcoil juxtapositions - in principle).

A smart chip normally used in auto-radio/domestic "Digital-Audio" (Class-D) applications.

2 separate Flux Concentration Paths & their associated Multilevel Class-D power chips...

That's essentially a Linux-compatible quad-core 64-bits 1.8 GHz computer in a keyboard with WiFi/BT5, GigaBit EtherNet, USB2 + USB3, USB-C PSUnit, micro-HDMi (2x), 16 GB micro-SD Flash drive for preinstalled Raspberry Pi OS, externally-accessible 40-pins General Purpose i/o (GPiO) extension port...

There's 2 ways to connect toroïd coils (so the final circuit will pass D.C. while attenuating A.C.) depending on how its windings were performed, plus 2 more if only a simple inductor will do; a 3rd type of setup removes the whole notion of magnetic poles and hence a need to pair them: go bifilar!

Schematized principle to communicate some basics.

Importing my RF Choke idea to a simplified 1-Phase 2 Poles version, in order to help reduce the parts count... N.B.: Such thin space between the poles would strongly suggests some tape-shaped susceptor.

A loaded concept implementing double-functions...

Egzoset's Universal 2-Phase 4-Poles IH WorkCoils Assembly - 16 mm Aperture - PCBoard Placement of Ti TPA3255 (up to 4 chips) Or... How much is too much??! ...

Power density ain't a pressing concern anymore, obviously. Each of the 2 chips is rated 300 + 300 Watts if hard-wired for "mono" audio, e.g. possibly the 20 Hz to 48 KHz range since Hi-Fi "Digital Audio" is also covered... Mono only requires 1 "RF Choke" per twin-coils duo (or phase)...