Electrical transmission or interconnection systems – Miscellaneous systems – Power packs
Patent
1998-06-01
2000-06-06
Gaffin, Jeffrey
Electrical transmission or interconnection systems
Miscellaneous systems
Power packs
H02J 700
Patent
active
060722509
ABSTRACT:
A battery pack (100) includes a battery cell (102), a power switch (104), a regulator circuit (106), control circuit (108), electronic drive switch (112), and a mechanical driver switch (116). The battery pack is placed in the hibernate mode by sending a hibernate message to the control circuit from an external device (134). The control circuit removes a control signal from the electronic driver switch, causing the power switch to open, removing power from the regulator circuit and all attached circuitry, including the control circuit. No current flows from the battery cell past the opened power switch, and the battery pack is then in the hibernate mode. To wake up the battery pack, the mechanical driver switch is actuated by a user, causing the power switch to close, allowing current and voltage from the battery cell to power up the regulator circuit, which in turn powers up the control circuit. The control circuit applies a control signal to the electronic driver switch to hold the power switch closed.
REFERENCES:
patent: 4202935 (1980-05-01), Malcolm
patent: 4893094 (1990-01-01), Herold et al.
patent: 5251179 (1993-10-01), Wittman
patent: 5594319 (1997-01-01), Thandiwe
patent: 5645949 (1997-07-01), Young
patent: 5762512 (1998-06-01), Trant et al.
Estes, Jr. James L.
Szeto Theresa P.
Thandiwe Iilonga P.
Burrus Philip
Farley Felipe J.
Gaffin Jeffrey
Motorola Inc.
Rios Roberto C.
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