Heating circuits and methods based on battery discharging and charging using resonance components in series and freewheeling circuit components
First Claim
1. A circuit for heating a battery, the circuit comprising:
- the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery, the battery including a first battery terminal and a second battery terminal;
a switch unit;
a switching control component coupled to the switch unit;
a first charge storage component including a first storage terminal and a second storage terminal; and
a freewheeling circuit connected with the battery;
wherein;
the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected to form at least a part of a loop;
the switching control component is configured to turn on the switch unit so as to allow a first current flowing from the battery to the first charge storage component and a second current flowing from the first charge storage component to the battery when the switch unit is turned on, and to turn off the switch unit; and
the freewheeling circuit is configured to allow a freewheeling current to flow to the battery after the switch unit is turned off;
wherein the circuit for heating the battery is configured to heat the battery by at least discharging and charging the battery.
3 Assignments
0 Petitions
Accused Products
Abstract
A circuit for heating a battery includes the battery including parasitic damping and current storage components, a switch unit, a switching control component coupled to the switch unit, a charge storage component, and a freewheeling circuit. The charge storage component and current storage component are at least parts of an energy storage circuit. The damping component, the current storage component, the switch unit, and the charge storage component are connected. The switching control component is configured to turn on and off the switch unit so as to control a first current flowing from the battery to the charge storage component and a second current flowing from the charge storage component to the battery. The freewheeling circuit is configured to allow a freewheeling current to flow to the battery after the switch unit is turned off. The circuit for heating the battery is configured to heat the battery by at least discharging and charging the battery.
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Citations
33 Claims
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1. A circuit for heating a battery, the circuit comprising:
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the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery, the battery including a first battery terminal and a second battery terminal; a switch unit; a switching control component coupled to the switch unit; a first charge storage component including a first storage terminal and a second storage terminal; and a freewheeling circuit connected with the battery; wherein; the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected to form at least a part of a loop; the switching control component is configured to turn on the switch unit so as to allow a first current flowing from the battery to the first charge storage component and a second current flowing from the first charge storage component to the battery when the switch unit is turned on, and to turn off the switch unit; and the freewheeling circuit is configured to allow a freewheeling current to flow to the battery after the switch unit is turned off; wherein the circuit for heating the battery is configured to heat the battery by at least discharging and charging the battery. - View Dependent Claims (2, 3, 4, 5, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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6. A circuit for heating a battery, the circuit comprising:
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the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery, the battery including a first battery terminal and a second battery terminal; a switch unit; a switching control component coupled to the switch unit; a first charge storage component including a first storage terminal and a second storage terminal, the first charge storage component and the first current storage component being at least parts of an energy storage circuit; and a freewheeling circuit; wherein; the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected; the switching control component is configured to turn on and off the switch unit so as to control a first current flowing from the battery to the first charge storage component and a second current flowing from the first charge storage component to the battery; and the freewheeling circuit is configured to allow a freewheeling current to flow to the battery after the switch unit is turned off; wherein the circuit for heating the battery is configured to heat the battery by at least discharging and charging the battery, wherein the switch unit includes a first branch circuit for conduction in a first direction and a second branch circuit for conduction in a second direction, the first direction being from the battery to the first charge storage component, the second direction being from the first charge storage component to the battery, wherein; the first branch circuit includes a first switch and a first one-way semiconductor component connected in series with the first switch, the first switch being coupled to the switching control component; and the second branch circuit includes a second switch and a second one-way semiconductor component connected in series with the second switch, the second switch being coupled to the switching control component; wherein the switching control component is further configured to turn on and off the first branch circuit by turning on and off the first switch respectively and to turn on and off the second branch circuit by turning on and off the second switch respectively. - View Dependent Claims (7, 8)
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Specification