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The method and system manage power supplied from a charging circuit to a power source in an implantable medical device utilizing measurements of current drain; measurements of elapsed time since the last full charge; calculations of operating time based on the variable of current drain and the varia

The method and system manage power supplied from a charging circuit to a power source in an implantable medical device utilizing measurements of current drain; measurements of elapsed time since the last full charge; calculations of operating time based on the variable of current drain and the variable of the actual capacity of the power source; sensing of voltage level above a certain value; and monitoring of the temperature of the power source during charging and discharging.

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The method and system manage power supplied from a charging circuit to a power source in an implantable medical device utilizing measurements of current drain; measurements of elapsed time since the last full charge; calculations of operating time based on the variable of current drain and the varia

The method and system manage power supplied from a charging circuit to a power source in an implantable medical device utilizing measurements of current drain; measurements of elapsed time since the last full charge; calculations of operating time based on the variable of current drain and the variable of the actual capacity of the power source; sensing of voltage level above a certain value; and monitoring of the temperature of the power source during charging and discharging. ond the applied magnetic field's magnitude causing field reversal internal to the rotating plasma beam and formation of a combined magnetic field having a field reverse configuration (FRC). 11. The method of claim 10 wherein the step of applying a magnetic field includes energizing a plurality of field coils extending about the chamber. 12. The method of claim 10 wherein the ion beams are injected substantially transverse to the applied magnetic field. 13. The method of claim 12 wherein the step of injecting the ion beams further comprises the steps of neutrilizing the ion beams, draining the neutralized ion beams' electric polarization, and exerting a Lorentz force due to the first magnetic field on the neutralized ion beams to bend the ion beams into betatron orbits. 14. The method of claim 10 further comprising the step of increasing the applied magnetic field's magnitude to maintain the rotating beam plasma at a predetermined radial size. 15. The method of claim 10 wherein step of increasing the rotating plasma beam's rotational velocity includes the step of energizing a betatron flux coil within the chamber inducing an azimuthal electric field within the chamber. 16. The method of claim 15 further comprising the step increasing the current through the flux coil to accelerate the rotating plasma beam to a fusion relevant rotational energy. 17. The method of claim 16 further comprising the steps of injecting high energy ion beams into the FRC and trapping the beams in betatron orbits within the FRC. bility of Fusion Power Generation by Accelerated Ion Beams," ICENES, pp. 305-309, Jun. 30-Jul. 4, 1986. Dawson, John M., "Advanced Fules fo CTR," Four Workshops in Alternate Concepts in Controlled Fusion, EPRI ER-429-SR Special Report, Part B: Extended Summaries, pp. 143-147, May 1977. Dawson, John M., "Alternate Concepts in Controlled Fuison," EPRI ER-429-SR Special Report, Part C: CTR Using the p-11B Reaction, pp. iii-30, May 1977. "Letters," ISSN 0036-8075, Science, vol. 278, pp. 2024, 2032-2034, No. 5346, Dec. 19, 1997. Finn et al., "Field-Reversed Configurations with a Component of Energetic Particles," Nuclear Fusion, vol. 22, pp. 1443-1458, No. 11, (1982). Tamdem Energy Corporation Presentation, Dec. 12, 1997. Post, Richard F., "Nuclear Fusion," McGraw-Hill Encyclopedia of Science & Tehcnology, 6thEd., pp. 142-153, 12 NIO-OZO. Rider, Todd H., "A general critique of inertial-electrostatic confinement fusion systems," Phys. Plasmas, vol. 2, No. 6, Pt. 1, pp. 1853-1870, Jun. 1995. Dobrott, D., "Alternate Fuels in Fusion Reactors," Nuclear Technology/Fusion, pp. 339-347, vol. 4, Sep. 1983. Miley et al., "A Possible Route to Small, Flexible Fusion Units," Energy, vol. 4, pp. 163-170, Special Issue: 1978 Midwest Energy Conference. Heidbrink et al., "The diffusion of fast ions in Ohmic TFTR discharges," Phys. Fluids B, vol. 3, No. 11, pp. 3167-3170, Nov. 1991. Heidbrink et al., "comparison of Experimental and Theoretical Fast Ion Slowing-Down Times in DIII-D," Nuclear Fusion, vol. 28, No. 10, pp. 1897-1900, plus letters page, (1988). Becker et al., "Low-Energy Cross Sections for 11B(p,2α)*," Atomic Nuclei 327, pp. 341-355, (1987). Rosenbluth et al., "Fokker-Planck Equation for an Inverse-Square Force," The Physical Review, vol. 107, No. 1, pp. 1-6, Jul. 1957. Feldbacher et al., "Basic Cross Section Data for Aneutronc Reactor," Nucl. Inst. and Methods in Phys. Res., A271, pp. 55-64, (1988). Naitou et al., "Kinetic Effects on the Connective Plasma Diffusion and the Heat Transport," J. of the Phys. Soc. of Jap., vol. 46, No. 1, pp. 258-264, (1979). Zweben et al., "Radial Diffusion Coefficient for Counter-Passing MeV Ions in the TFTR Tokamak," Nuclear Fusion, vol. 13, No. 12, pp. 2219-2245, (1991). Song et al., "Electron trapping and acceleration in a modified elongated betatron," Phys. Fluids B, vol. 4, No. 11, pp. 3771-3780, Nov. 1992. Wong et al., "Stability of annular equilibrium of energetic large orbit ion beam," Phys. Fluids B., vol. 3, No. 11, pp. 2973-2966, Nov. 1991. Davis et al., "Generation of Field-Reversing E Layers with Millisecond Lifetimes," Phys. Review Let., vol. 37, No. 9, pp. 542-545, Aug. 30, 1976. Phelps, et al., "Observations of the stable equilibrium and classical diffusion of field reversing relativistic electron coils," The Phys. of Fluids, vol. 17, No. 12, pp. 2226-2235, Dec. 1974. Weaver et al., "Exotic CTR Fuels: Non-Thermal Effects and Laser Fusion Applications," Paper presented at 1973 Annual Meeting of the Amer. Phys. Soc. Div. of Plasma Physics, Philadelphia, PA, Oct. 30, 1973. Weaver et al., "Fusion Microexplosions, Exotic Fusion Fuels, Direct conversion: Advanced Techology Options for CTR," UCID-16309, Apr. 27, 1973. Weaver et al., "Exotic CTR Fuels for Direct Conversion-Utilizing Fusion Reactors," UCID-16230, Mar. 16, 1973. Heidbrink, W.W., "Measurements of classical deceleration of beam ions in the DIII-D tokamak," Phys. Fluids B, vol. 2, No. 1, pp. 4-5, Jan. 1990. Cox, et al., Fusion Technology, vol. 18, pp. 325-339. Rostoker et al., "Colliding Beam Fusion Reactor," vol. 278, pp. 1419-1422, Nov. 1997. Rostoker et al., "Large Orbit Confinement for Aneutronic Systems," Non-Linear and Relativistic Effects in Plasmids, Ed. V. Stefan, Am. Inst. of Phys., New York, pp. 116-135, (1992). Rostoker et al., "Magnetic Fusion with High Energy Self-Colliding