Abbott Analytical Products

NC Megalodon Shark

Floating Gate
Electron Reservoir
Power Source

Warning: Every complex problem, has at least one simple wrong answer.
This may be one of them. Unknown authorship.

Synthesized Using
Opensource Software:
FreeCAD
QUCS
fityk
LTSpice

2022 Shark

Copyright © 1988-2023 by Abbott Analytical Products. All Rights Reserved.

Contents of Page

1> The project presented here is a proposed Floating Gate Electron Reservoir Power Source. It is not a qualified component/device/module at any level. This projects as presented here is not qualifed for any electrical/electronic/power application. The project as presented should serve as a test platform and simulator supporting further development of a modular mobile power source. The usage of this power source need not be limited to ground mobile applicaitons.

2> No warranty is made regarding the servicability or fitness for use of this power. A user may employ, enjoy or engage in this project under the terms of he GNU General Public License (GNU GPL or GPL) as OpenSource software licenses that guarantee end users the freedom to run, study, share, and modify the software. All copyrights privildeges are reserved. 3> Currently, the project is maintained at https://github.com/trooker/Floating-Gate-Electron-Reservoir as a private project respository. Access can be request from the author using the email form at the bottom of this page.

Evolution of Project

The Holy Grail:

Click to view the Short Story.

Click to view the Long Story.

Working Assumptions:

The working assumptions are:

• Ability to read technical material and translate into specification/work-product.
• Experience creating CAD artifacts using FreeCAD IDE.
• Knowledge of electrical engineer and experiecne using QUCS models and simulation.
• A capability to adapt hardware as need to integrate with software to accomplish a specific task.
• The design implementation is limited to pre-SPICE device manufacture.
• Work will proceed as funding and resources accumulate.

Reference:

The references are split into a short list of "primary" references given directly below and into the Supporting Reference section table given at the bottom of the page. The reader may also come across images and spreadsheet references. A complete set of project notes provide a "grubbing trail" that was followed to reach a level of knowledge required to carry this project to its current status. That set of development notes is available upon request.

Primary References:
Note: ** Some browsers do not allow links to these sites from the URL anchor shown. If so, then Copyand Paste URL.

• FreeCAD URL:https://www.freecadweb.org/ devices.
• Quite Universal Circuit Simulator URL: http://qucs.sourceforge.net/.
• Fityk URL: https://fityk.nieto.pl/
• Charging Mode:
  1. First part of EDD Modelling of Floating Gate MOSFET M. Cullinan Thesis work product. URL: https://repository.londonmet.ac.uk/960/1/CullinanMichael_EquationDefinedDeviceModelling_01.pdf.
     Link to View Key Cullinan Content Part 1
  2. Second part of EDD Modelling of Floating Gate MOSFETM. Cullinan Thesis work product. URL: https://repository.londonmet.ac.uk/960/5/CullinanMichael_EquationDefinedDeviceModelling_05.pdf.
     Link to View Key Cullinan Content Part 5
• Discharging Mode:
  1. K. Rahimi team's foundational presentation "A SIMULATION MODEL FOR FLOATING-GATE MOS SYNAPSE TRANSISTORS" completes the charge-discahrge cycle of modes expected of a Floating Gate Electron Reservoir Power Source. URL: https://homes.cs.washington.edu/~diorio/Publications/CoAuthConfPapers/Other/Iscas2002.pdf
• Monitoring Mode:
  1. TBD
• The project's artifacts are available for download from GITHUB , URL**: https://github.com/trooker/Floating-Gate-Electron-Reservoir. The project is currently set to "private". To gain access use the email form at the bottom of the page to contact the author.

Status:

Given Assumption: At the moment the project is not concerned with many manufacturability or usability constraints such as weight, heat, cubic volume, controller compatability. reliability, cost, etc.

• Decomposed the engineering task into three major phases:
  1. Investigate the state of solid state devices (SSD) memories as possible electron reservoir.
  2. Develop a virtual 3D rendering the simplest Floating Gate Electron Reservoir Power Source.
  3. Generate a simulation platform to establish the feasible electical power charge/discharge capability.
• Matured the investigation of SSD memories as potential electron reservoirs to the point that it supported creation of a virtual rendring of a possible prototype as well as provided a simulation platform. Both the rendering of a prototype and the simulation platform allowing the projection of a massive electron reservior would be needed to serve as a power source f or a typical 250 mile range EV currently marketed to the driving public.
• Created a FreeCAD project 3D CAD rendering of a four cell string of Floating Gate Cells suiatble for trapping/charging/discharging/read Electrons to/from a Reservoir Power Source. Bitlines, wordlines, source lines, and drain lines connections are reflected in this rendering. The mapped connections suggest how the charge/discharge/read processing might occur.
  1. A decision was made to limit the VNAND model to a straight four cell string. Such a 'subassembly' representing the VNAND model is of a workable size, complexity to allow conceptualization and testing of a Floating Gate Electron Reservoir Power Source and behavior simulation.
  2. The string is composed of one set of FGMOSFET features and two coupled Bit Line Selction MOSFET features
  3. The set of FGMOSFET features composed of interlocking one Master link, one or more Source link were developed as interlocking objects exhibiting FGMOSFET architecture.
  4. The string's features is controlled by the various connections held or pulsed to specific voltage levels to achive the appropriate behavior: charge/discharge/return-voltage-level.
• Charging Mode: Replicated the models, simultations and diagrams from M. Cullinan's work product using QUCS to determine what might be expected from today's Floating Gate MOSFET technology. The objective was to determine the qunatity of charge a floating gate cell might he able trap/charge/discharge/read.
  1. Adapted the Floating Gate MOSFET equation defined device model and device circuit symbol as described in M. Cullinan's thesis.
  2. Confirmed Cullinan's figure 5.1.1.a simulation of the FGMOSFET characteristic curve. View schematic.
  3. Reproduced the Cullinan charge transfer curves using a rendering of figure 8.1.1. View schematic.
  4. Vfg behavior associated with external voltages using figure 7.5.1.a. View schematic.
  5. Generate a close-fit of short pulsed Vfg voltages employing Cullinan figure 7.6.1. View schematic.
• Discharging Mode: Leveraged the work of K. Rahmini's team seminal publication "A SIMULATION MODEL FOR FLOATING-GATE MOS SYNAPSE TRANSISTORS." This artifact provided additional confirmation of the Cullinan effort regarding charging and landmark discharging models, parameters, and emprical test results.
• Simulation results of the 'basic cell' of a Floating Gate Electron Reservoir Power Source conclude that under ideal conditions 2.79E+10 basic cells would be required to serve as an 80KWHr power source for an electric vehicle.
• Concluded inital testing and developed initial "global findings".
• Click to view details:
  

Global Findings:

The following points have been determined:

• The project provided a great springboard into further development along the Floating Gate Electron Reservoir Power Source pathway.
• A pausible primitive 'virtual' Floating Gate Electron Reservoir Power Source simulation model was produced employing Opensource "tools on-hand" in the project's inventory.
• As the project sits today, the primitive 'basic cell' Floating Gate Electron Reservoir Power Source model did function but only at the most minimal threshold of expecations.
• There is plenty of room to "grow" this project into a useful Floating Gate Electron Reservoir Power Source.
• Energy was expended to determine that a quantitfy 2.79E+10 basic cells are required to yield a feasible potential of the Floating Gate Electron Reservoir Power Source.
• With the tools available now, the brick by brick evolution of the architecture of the Floating Gate Electron Reservoir Power Source is being undertaken.

Supporting References