ELECTRONIC CIRCUIT FOR CHARGING AND HEATING A BATTERY
First Claim
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1. An electronic circuit coupled between two batteries, the electronic circuit comprising:
- a plurality of mode control switches configured to set the electronic circuit to operate in one of a plurality of charging and heating modes;
a plurality of switch and diode pairs, each switch and diode pair including a diode connected across an output of an electronic switch, the electronic switch having a trigger connected to a control signal; and
an inductor connected to the plurality of switch and diode pairs;
the electronic circuit configured to operate in the plurality of charging and heating modes according to the states of the mode control switches and the control signals applied to the switch and diode pairs, where the switch and diode pairs are triggered on and off to either charge the inductor or operate the inductor as a current source for charging and heating the batteries in accordance with the charging and heating modes.
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Abstract
An electronic circuit configured to operate in any of a plurality of charging and heating modes for two batteries, a primary battery and a secondary battery. The electronic circuit includes a plurality of switch and diode pairs in a stacked configuration. The stacks of switch and diode pairs are connected to an inductor, to a plurality of mode control switches, and the two batteries. The mode control switches are used to set the modes, which include a charging mode, a self-heating, a power exchange-heating mode, and a direct power transfer mode.
92 Citations
19 Claims
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1. An electronic circuit coupled between two batteries, the electronic circuit comprising:
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a plurality of mode control switches configured to set the electronic circuit to operate in one of a plurality of charging and heating modes; a plurality of switch and diode pairs, each switch and diode pair including a diode connected across an output of an electronic switch, the electronic switch having a trigger connected to a control signal; and an inductor connected to the plurality of switch and diode pairs; the electronic circuit configured to operate in the plurality of charging and heating modes according to the states of the mode control switches and the control signals applied to the switch and diode pairs, where the switch and diode pairs are triggered on and off to either charge the inductor or operate the inductor as a current source for charging and heating the batteries in accordance with the charging and heating modes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A battery-operated sub-system configured to operate in a battery-operated system, the battery-operated system powered by a primary battery and the battery-operated sub-system powered by a secondary battery, the battery-operated sub-system comprising:
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a controller configured to generate a plurality of control signals; and an electronic circuit connected to the primary battery and to the secondary battery, the electronic circuit having; a plurality of mode control switches configured to set the electronic circuit to operate in one of a plurality of charging and heating modes; a plurality of switch and diode pairs, each switch and diode pair including a diode connected across an output of an electronic switch, the electronic switch in the plurality of switch and diode pairs having a trigger connected to one of the plurality of control signals; and an inductor connected to the plurality of switch and diode pairs; the electronic circuit configured to operate in the plurality of charging and heating modes according to the states of the mode control switches and the control signals applied to the switch and diode pairs, where the switch and diode pairs are triggered on and off to either charge the inductor or operate the inductor as a current source for charging and heating the batteries in accordance with the charging and heating modes. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for charging and heating at least one battery in a system having two batteries, the method comprising:
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switching an electronic circuit to one of a plurality of charging and heating modes; configuring a plurality of switch and diode pairs to alternately charge and discharge an inductor to provide charge to one or both of the batteries to either charge or heat the batteries in accordance with the selected charging and heating mode; and coupling a plurality of control signals to the plurality of switch and diode pairs to cycle the charging and discharging of the inductor in accordance with the selected charging and heating mode. - View Dependent Claims (16, 17, 18, 19)
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Specification