Detecting a battery within a battery charger
OwnerWon-Woo Leeinventor
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Abstract
A device for detecting a battery within a charger includes a battery detector and a regulation voltage controller that limits a battery charging terminal voltage to a battery regulation voltage. The battery detector generates a battery existence signal if a battery charging terminal voltage is not greater than a battery detection reference voltage at an end of a predetermined time period. The battery charging terminal voltage is limited to a normal mode value of the battery regulation voltage if the battery existence signal is generated. The battery detector also detects for removal of the battery after the battery regulation voltage is set to the normal mode value during charging.
Claims21
A method for detecting a battery within a charger, the method comprising:
- A. charging a battery charging terminal limited to a battery regulation voltage that is initially set to a test mode value;
- B. generating a battery existence signal if a battery charging terminal voltage is not greater than a battery detection reference voltage at an end of a predetermined time period from a power-on of the charger;
- and
- C. charging the battery charging terminal limited to the battery regulation voltage set to a normal mode value if the battery existence signal is generated.
A device for detecting a battery within a charger, the device comprising:
- a regulation voltage controller for limiting a battery charging terminal voltage to a battery regulation voltage that is initially set to a test mode value;
- and
- a battery detector for generating a battery existence signal if a battery charging terminal voltage is not greater than a battery detection reference voltage at an end of a predetermined time period from a power-on of the charger,
- wherein the regulation voltage controller limits the battery charging terminal voltage to the battery regulation voltage set to a normal mode value if the battery existence signal is generated.
A battery charger comprising:
- a current feed-back loop for controlling a level of a current flowing to the battery charging terminal;
- a regulation voltage controller for limiting a battery charging terminal voltage to a battery regulation voltage that is initially set to a test mode value;
- and
- a battery detector for generating a battery existence signal if a battery charging terminal voltage is not greater than a battery detection reference voltage at an end of a predetermined time period from a power-on of the charger,
- wherein the regulation voltage controller limits the battery charging terminal voltage to the battery regulation voltage set to a normal mode value if the battery existence signal is generated.
Dependencies are inferred from the claim text.