Battery charger and method therefor
OwnerIsao Hayashiinventor
Life of this patent
Estimating the term…
Abstract
To fully charge a battery by a multi-power-source battery charger either when a DC power having a voltage corresponding to the charging voltage of the battery is input or when a DC power having a voltage higher than the charging voltage of the battery is input, the supply destination of the input DC power is switched, in accordance with the voltage of the DC power input to the battery charger, between a controller which controls charging of the battery in accordance with the charging voltage of the battery and a DC/DC converter which controls the voltage and current of the DC power supplied to the battery through the controller.
Claims12
A battery charger for charging a battery, comprising:
- a controller which detects a charging voltage and charging current of the battery and controls charging of the battery in accordance with a detection result;
- a converter which controls a voltage and current of a DC power supplied to the battery;
- and
- a switch which sets a supply destination of the input DC power to one of said converter and said controller connected to an output of said converter in accordance with the voltage of the input DC power.
A battery charger for charging a battery, comprising:
- a controller which detects a charging voltage and charging current of the battery and controls charging of the battery in accordance with a detection result;
- a converter which controls a voltage and current of a DC power supplied to the battery;
- a first input connector which supplies the input DC power to said converter;
- and
- a second input connector which supplies the input DC power to said controller connected to an output of said converter.
A control method of a battery charger having a controller which detects a charging voltage and charging current of the battery and controls charging of the battery in accordance with a detection result, and a converter which controls a voltage and current of a DC power supplied to the battery, the method comprising the step of setting a supply destination of the input DC power to one of the converter and the controller connected to an output of the converter in accordance with the voltage of the input DC power.
A control method of a battery charger having a converter which controls a voltage and current of a DC power supplied to a battery through a switch, a first input connector which supplies the input DC power to the converter, a second input connector which supplies the input DC power to the switch, and a detector which detects whether a plug is connected to the second input connector, said method comprising steps of:
- setting a quick charging start voltage of the battery in accordance with a detection result of the detector;
- and
- detecting a charging voltage and charging current of the battery and controlling the switch in accordance with a detection result to control charging of the battery.
A computer program product storing a computer readable medium comprising a computer program code, for a control method of a battery charger having a converter which controls a voltage and current of a DC power supplied to a battery through a switch, a first input connector which supplies the input DC power to the converter, a second input connector which supplies the input DC power to the switch, and a detector which detects whether a plug is connected to the second input connector, said method comprising steps of:
- setting a quick charging start voltage of the battery in accordance with a detection result of the detector;
- and
- detecting a charging voltage and charging current of the battery and controlling the switch in accordance with a detection result to control charging of the battery.
A battery charger for charging a battery, comprising:
- a controller which detects a charging voltage and charging current of the battery and controls charging of the battery in accordance with a detection result;
- a connector which charges the battery from a detachable plug and receives supply of a DC power that operates said controller;
- and
- a reset unit which resets an operation of said controller when a voltage supplied to said controller decreases,
- wherein said controller executes intermittent charging when the charging current is not more than a first threshold value Ith1.
A control method of a controller of a battery charger having a connector which charges a battery from a detachable plug and receives supply of a DC power that operates the controller, and a reset unit which resets an operation of the controller when a voltage supplied to the controller decreases, said method comprising steps of:
- detecting a charging voltage and charging current of the battery and controlling charging of the battery in accordance with a detection result;
- and
- executing intermittent charging when the charging current is not more than a threshold value Ith1.
A computer program product storing a computer readable medium comprising a computer program code, for a control method of a controller of a battery charger having a connector which charges a battery from a detachable plug and receives supply of a DC power that operates the controller, and a reset unit which resets an operation of the controller when a voltage supplied to the controller decreases, said method comprising steps of:
- detecting a charging voltage and charging current of the battery and controlling charging of the battery in accordance with a detection result;
- and
- executing intermittent charging when the charging current is not more than a threshold value Ith1.
Dependencies are inferred from the claim text.