US6677730 — Device and method for Pulse Charging a Battery

US6677730 is one of three US patents abstracted in the source archive Bedini dossier. It is attributed to John C. Bedini and describes a two-phase solid-state pulse charger. Unlike the other two patents in the dossier, it is a battery-charger patent rather than a motor patent; the dossier treats it as part of the same family because the Bedini machines use it to deliver recovered pulse energy into a charge battery.

Abstract (verbatim, as reproduced in the dossier)

"A two-phase solid-state battery charger can receive input energy from a variety of sources including AC current, a battery, a DC generator, a DC-to-DC inverter, solar cells or any other compatible source of input energy. Phase I is the charge phase and phase II the discharge phase wherein a signal or current passes through a dual timing switch that controls independently two channels dividing the two phases. The dual timing switch is controlled by a logic chip or pulse width modulator. A potential charge is allowed to build up in a capacitor bank, the capacitor bank is then disconnected from the energy input source and then pulse charged at high voltage into the battery to receive the charge. The momentary disconnection of the capacitor from the input energy source allows for a free-floating potential charge in the capacitor. Once the capacitor has completed discharging the potential charge into the battery, the capacitor disconnects from the battery and re-connects to the energy source thus completing the two-phase cycle."

Key elements

• Two-phase cycle: charge phase (I) and discharge phase (II).
• Dual timing switch controlling two independent channels, driven by a logic chip or pulse-width modulator.
• Capacitor bank charged from the input source, then disconnected and pulse-charged at high voltage into the battery.
• The momentary disconnection is described as allowing a "free-floating potential charge" in the capacitor.

Related pages

• Pulse Charging with a Two-Phase Capacitor Cycle — the mechanism
• Battery Desulfation by Cycling — the claimed downstream effect
• Bedini Claims vs. Evidence: The Patents, the Inventor's Disclaimers and the Absence of an Energy Balance