Electricity: motive power systems – Battery-fed motor systems
Patent
1997-02-12
1998-04-28
Sircus, Brian
Electricity: motive power systems
Battery-fed motor systems
388804, 320 21, H02P 100
Patent
active
057449201
ABSTRACT:
A method for reducing the amount of power dissipated in the internal resistance of a battery supplying current to a load through a circuit that switches the battery on and off at a known switching rate and duty ratio to result in ON periods during which the battery is coupled to the load and OFF periods during which the battery is not coupled to the load, includes the step of providing a bank of capacitors connected across the battery. The bank of capacitors has at least one capacitor, a combined equivalent series resistance less than the internal resistance of the battery, and a combined capacitance such that the product of the combined capacitance expressed in microfarads and the switching rate expressed in Hertz is at least 4.times.10.sup.6. The method proceeds by storing energy from the battery in the bank of capacitors during the OFF periods for contribution to the load during the ON periods. In line with the above method, a control system for a radio controlled (R/C) model includes a speed controller with the bank of capacitors having the attributes described above connected across the battery terminals.
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Article in the Nov. 1996 issue of Xtreme magazine (a publication of Team Action Publishing, Rowland Heights, California) by Mike Velez (publisher/editor) entitled "Tekin's G-9 Supersonic Hype or Horsepower?" pp. 36-39.
Hanson Loyal McKinley
Sircus Brian
LandOfFree
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