FIGUERA'S AETHER MAGNETIC FIELDS LINEAR PUMP, REVIVED

[kampen]

Hello, my dear friend Ufopolitics,

Thank you for taking the time to redraw the diagram. 
I really appreciate your effort to align everything.
 
It helps a lot to be on the same page.
Yes, your interpretation is mostly correct.

The selectors can indeed be seen as normally open switches, 
where each one connects a specific node of the coil chain either to +V (left side) or to GND (right side) when activated. 
In the real Solid-State implementation, these are, of course, MOSFET-based switches, but functionally, your representation as switches is perfectly valid.

There is just one important clarification:
The selectors are not simply independent switches; 
they must be operated in paired coordination (SLx with SRx) to define the active window of coils. 
Also, timing is critical (make-before-break), but conceptually, your drawing captures the idea well.

Regarding your question about the 15 nodes (N0–N15):
These nodes are actually very important.
They are:

• The tap points between each coil
• The connection points where the selectors interface
• The way we define which section of the chain becomes the active magnetic window

So even if they are not all externally wired in your diagram, they are internally essential as:

• Electrical access points
• Switching reference points for the SSD system

In other words, every selector is effectively selecting one of these nodes.

Your diagram shows a very good understanding of the system. 
The only refinement I would suggest is to keep in mind that:

• The nodes are not unused; they are the backbone of the switching topology
• Each selector connects to a node, not just "to a coil"

Again, excellent work. You are very close to a perfect representation.

Warm regards, Alex

[kampen]

Subject Ref.: Annotated Diagram –
Current Paths & Switching Behavior (Based on Ufopolitics' Version)

Hello everyone,
I took the excellent redraw by Ufopolitics and added annotations to help visualize
What is actually happening electrically, especially during operation and transitions?

What is Shown in this Annotated Version
1. Example Active Path (G3)

• Highlighted path: SL2 → SR10
• This energizes the coil window Q3 through Q10
• You can clearly see:
  
  • Entry from +V through SL2
  • Current flowing across the coil chain
  • Exit through SR10 to return

This illustrates how only a section of the chain is active at any time.
 
2. Floating Node Behavior (N0–N15)

• The bottom nodes are now explicitly marked:
  
  • They are NOT connected together
  • They are not externally driven
• These nodes:
  
  • Float according to the active current path
  • Represent the voltage gradient across the active coil segment

They can be used for:

• Measurement
• Debugging
• Future sensing (optional)

3. Make-Before-Break Transition (Critical)

• The diagram shows the transition from:
  
  • SL2 + SR10 → SL3 + SR11
• Key rule:
   👉 Turn ON the next pair before turning OFF the previous pair

This ensures:

• Continuous current flow
• No inductive kick
• No field collapse

4. Overlap Behavior (Subtle but Important)

• During switching overlap:
  
  • The active path briefly shifts/extends
  • The system may momentarily energize a slightly larger section

This is expected — but:

• Overlap timing must be controlled
• Control logic must enforce valid selector pairs only

Key Reminders

• No shared return bus — ever
• Each SR path must remain isolated
• Selectors behave like switches, but are implemented as back-to-back MOSFETs
• Gate driving must be floating/isolated
• Current-controlled supply is strongly recommended

Credit
Special thanks to Ufopolitics for the clean redraw this made it much easier to illustrate the current flow and clarify the behavior.
If anyone wants, I can go in detail into:

• Transition timing design
• Gate driver implementation
• Or fault scenarios and protection strategies

Regards, Alex

[kampen]

Hi everyone,

I wanted to share my latest set of clamp brackets for a laminated core build.
I have a few versions using HDPE (black) and Nylon (white) to compare performance and durability.
The design is split into two halves with a stepped profile so it can clamp securely around the core.

The design is split into two halves with a stepped profile so it can clamp securely around the core.

I have also tried two internal cutout styles:

• Square opening for tighter alignment on rectangular sections
• Circular opening for more even pressure distribution around round core

Both versions use four mounting holes for bolting the halves together and applying consistent clamping force.
So far:

• HDPE is easy to machine and forgiving, but slightly softer under load
• Nylon feels much stiffer and more durable, especially for repeated clamping

In the assembled setup (see last photo), the HDPE brackets hold the square laminated core firmly while keeping everything aligned.

Regards, Alex

[kampen]

NEW: Visual 3-Frame Transition Diagram (Make-Before-Break in Action)

Hello everyone,
I have updated the transition explanation with a proper visual 3-frame diagram set showing exactly how the system behaves during switching.

This version now clearly illustrates:

• Active current paths
• Coil segments being energized
• Selector states during transition

What the 3 Frames Show, see above:
Frame 1 — Initial State (G3)

• Active: SL2 + SR10
• Energized coils: Q3 → Q10
• Clean, stable current path from +V to GND

Frame 2 — Transition (Make-Before-Break)

• Active: SL2 + SL3 + SR10 + SR11
• This is the overlap phase
• Current path briefly expands (Q3 → Q11)

✔ No interruption
 ✔ No voltage spike
 ✔ Magnetic field remains continuous

Frame 3 — Final State (G4)

• Active: SL3 + SR11
• Energized coils shift forward: Q4 → Q11

✔ Window successfully advanced by one coil

Key Takeaways

• Make-before-break is mandatory — never open the path before the next is established
• Overlap is intentional and controlled, not a fault
• Nodes remain floating — no shared return bus
• Only valid selector pairs must be enforced by control logic

Why This Matters
This visual breakdown makes it easier to see:

• How current actually flows through the chain
• Why the earlier "common return" approach failed
• How smooth transitions are achieved without inductive collapse

Regards, Alex

[kampen]

@ All,

I created a clean timing diagram 
showing the gate signals (SL2, SL3, SR10, SR11) and the resulting continuous current:

How to Read It

• SL2 / SR10 (old pair)
  
  • Start ON
  • Turn OFF after overlap
• SL3 / SR11 (new pair)
  
  • Turn ON before old pair turns OFF
• Overlap Region (center)
  
  • All four signals briefly ON
  • This is your make-before-break window
• Current (flat line)
  
  • Never drops → no interruption
  • This is the key goal ✔️
  •  

Key Technical Insight
The timing relationship should always be:

Code Select Expand

Turn ON (new pair) → wait → Turn OFF (old pair)
NOT:

Code Select Expand

Turn OFF → then Turn ON 

Code Select Expand

❌ (this causes inductive spike)

What This Implies for Your System

• You need precise timing control (FPGA ideal)
• Overlap must be:
  
  • Long enough → avoid current drop
  • Short enough → avoid excessive parallel conduction

Typical:

• Overlap in µs range (depends on coil L/R)

 
Regards, Alex