US 6,605,923 B1 · Uninterrupted power supply

Abstract

An improved power source is provided incorporating a main battery pack and reserve battery pack. Both the main battery pack and reserve battery pack include rechargeable power sources and electrical power terminals. In addition, the power source includes a first mount for affixing the main battery pack to the reserve battery pack so that the respective power terminals engage and become electrically coupled. Moreover, the reserve battery pack includes an additional second set of power terminals for connection to an electrically powered device, such as a video camera. A second mount is provided for affixing the reserve battery pack to the electrically powered device so that the reserve battery pack's second set of power terminals engage electrical terminals of the electrically powered device. A controller is provided for controlling the electrical connection of the main battery pack and reserve battery pack to the electrically powered device. The controller further includes voltage and/or current detectors for detecting voltage and current values of the respective battery packs. Moreover, the controller includes a control processor for controllably providing an electrical connection between the main battery pack and/or reserve battery pack with the electrically powered device based upon predetermined voltage and current parameters. In a preferred embodiment, the main battery pack provides exclusive power the electrically powered device until detection of a current surge wherein the controller causes the battery packs to be connected in parallel to provide power to the electrically powered device. Also preferably, the controller causes power to be switched from the main battery pack to the reserve battery pack when the controller has determined that the main battery pack's charge level has dropped below a predetermined value.

Claims18

Dependent claims

A main battery pack and reserve battery pack combination for supplying power to an electrically powered device, the battery pack combination comprising:

a first battery pack including a first rechargeable power source and pair of electrical power terminals;
a second battery pack including a second rechargeable power source, a first set of power terminals and a second set of power terminals;
a mounting means for mounting said first battery pack and a second battery pack to an electrically powered device, said mounting means including;
a first mount for detachably mounting said first battery pack to said second battery pack such that said first battery pack's electrical power terminals are electrically connected to said second battery pack's first set of power terminals;
and
a second mount for mounting said second battery pack to an electrically powered device;
a control means for electrically connecting said first battery pack to an electrically powered device, for electrically connecting said second battery pack to an electrically powered device, or for electrically connecting said first battery pack and said second battery pack in parallel to an electrically powered device;
said control means including,
a detector for determining voltage parameters of said first battery pack and said second batter pack,
one or more switches for controlling the supply of power of said first battery pack with the electrically powered device and for controlling the supply of power of said second battery pack with the electrically powered device, and
a control processor controlling said switches for automatically connecting said first battery pack or said second battery pack or said first battery pack and said second battery pack to the electrically powered device based upon the predetermined voltage parameters.

8 more elements

A main battery pack and reserve battery pack combination for supplying power to an electrically powered device, the battery pack combination comprising:

a first battery pack including a first rechargeable power source and pair of electrical power terminals;
a second battery pack including a second rechargeable power source, a first set of power terminals and a second set of power terminals;
a mounting means for mounting said first battery pack and a second battery pack to an electrically powered device, said mounting means including;
first mount for detachably mounting said first battery pack to said second battery pack such that said first battery pack's electrical power terminals are electrically connected to said second battery pack's first set of power terminals;
and
a second mount for mounting said second battery pack to an electrically powered device;
and
a control means for electrically connecting said first battery pack to an electrically powered device, for electrically connecting said second battery pack to an electrically powered device, or for electrically connecting said first battery pack and said second battery pack in parallel to an electrically powered device;
said control means including;
a detector for determining current parameters of said first battery pack and said second batter pack,
one or more switches for controlling the supply of power of said first battery pack with the electrically powered device and for controlling the supply of power of said second battery pack with the electrically powered device, and
a control processor controlling said switches for automatically connecting said first battery pack or said second battery pack or said first and second battery packs in parallel to the electrically powered device based upon the predetermined current parameters.

9 more elements

Dependencies are inferred from the claim text.

Uninterrupted power supply

Life of this patent

Uninterrupted power supply

Life of this patent

Abstract

Claims18