Charging Device
AssigneeHitachi Koki Co., Ltd.
InventorsTakao Aradachi, Kazuhiko Funabashi, Kenji Shimatsu
Life of this patent
Estimating the term…
Abstract
In a charging device, a terminal is configured to connect a rechargeable battery. A first power feeding unit is configured to charge the rechargeable battery connected to the terminal. A controller is configured to control the first power feeding unit. A second power feeding unit is configured to feed electrical power to the controller and a monitoring unit. The monitoring unit includes a monitoring portion and a switching element. The monitoring portion is configured to monitor at least one of the rechargeable battery, the first power feeding unit, and the controller. The switching element is configured to interrupt the second power feeding unit to feed the electrical power to the monitoring portion.
Claims19
A charging device comprising:
- a terminal configured to connect a rechargeable battery;
- a first power feeding unit configured to charge the rechargeable battery connected to the terminal;
- a controller configured to control the first power feeding unit;
- a monitoring unit;
- and
- a second power feeding unit configured to feed electrical power to the controller and the monitoring unit,
- wherein the monitoring unit includes;
- a monitoring portion configured to monitor at least one of the rechargeable battery, the first power feeding unit, and the controller;
- and
- a switching element configured to interrupt the second power feeding unit to feed the electrical power to the monitoring portion.
A charging device comprising:
- a terminal configured to connect a batter pack;
- an identifying unit configured to identify a rated voltage of the battery pack connected to the terminal from among a plurality of rated voltages;
- a charging unit configured to charge the battery pack connected to the terminal;
- a threshold selecting unit configured to select a threshold value of the battery pack connected to the terminal from among a plurality of threshold values based on the identified rated voltage;
- and
- a determining unit configured to determine whether a battery voltage of the battery pack is less than the selected threshold value.
Dependencies are inferred from the claim text.