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US 2020/0028370 A1Published application
Battery protection circuit
OwnerOrest Fedaninventor
Life of this patent
Estimating the term…
Abstract
A battery protection system with a voltage sensing circuit for sensing the voltage of a battery and disconnecting all loads from the battery, including the voltage sensing circuit itself, when the voltage of the battery drops below a preset limit or when a battery charger is connected to the battery. The battery protection system reconnects the voltage sensing circuit upon disconnection of the battery charger.
Claims13
A battery protection system including:
- an input terminal,
- a sense terminal,
- a ground terminal,
- an output terminal configured to provide an output voltage,
- a pulse generator connected to said sense terminal and configured to provide a transitory discharge current upon receiving a connection signal on said sense terminal, and
- an electronic switch configured to make an electrical connection between said input terminal and said output terminal, and responsive to said output voltage and said discharge current,
- wherein said electronic switch is configured to break said electrical connection when said discharge current is present or when said output voltage drops below a preset limit.
4 more elements
A battery protection system including:
- a battery charger having a positive terminal, a negative terminal and a control terminal,
- a cable connected to said battery charger positive terminal, said battery charger negative terminal and said battery charger control terminal,
- a jack having a power terminal, a ground terminal and a control terminal and connected to said cable,
- a rechargeable battery connected to said jack power terminal,
- a pulse generator connected to said jack control terminal and providing a transitory discharge current upon receiving a connection signal on said jack control terminal and providing a transitory charge current upon loss of said connection signal on said jack control terminal,
- an output terminal configured to provide an output voltage,
- a voltage comparator connected to said output terminal and responsive to said output voltage, and
- an electronic switch responsive to said discharge current, said charge current and said voltage comparator, and configured to make an electrical connection between said jack power terminal and said output terminal,
- wherein said electronic switch is configured to connect said jack power terminal to said output terminal when said charge current is present, and to disconnect said jack power terminal from said output terminal when said discharge current is present or when said output voltage drops below a preset limit.
6 more elements
Dependencies are inferred from the claim text.