Patent application number | Description | Published |
20130285476 | POWER SUPPLY DEVICE, INVERTER DEVICE, POWER TOOL - A power supply device includes: a battery pack; a transforming unit configured to transform a DC voltage supplied from the battery pack; and a control unit configured to determine, based on a characteristic of the battery pack, whether or not the converting unit performs an outputting operation. | 10-31-2013 |
20140001853 | CHARGER AND POWER SUPPLY SYSTEM | 01-02-2014 |
20140015451 | POWER TOOL SYSTEM AND POWER SUPPLY DEVICE - A power tool system includes: a power tool including an AC motor; a portable battery pack; and a power supply device that converts a DC power supplied from the portable battery pack into an AC power to supply the AC power to the AC motor. | 01-16-2014 |
20140153171 | Power Supply Device - A power supply device includes a main body, a cover member, a rechargeable battery, and an inverter device. The main body is configured of box-shape formed with an opening. The cover member is configured to open and close the opening. The rechargeable battery is accommodated in the main body. The inverter device is configured to be accommodated in the main body. The inverter device converts a direct voltage from the battery to an alternating voltage and outputs the alternating voltage. | 06-05-2014 |
20150188332 | Backpack-Type Power Supply - A rechargeable system includes: a charger ( | 07-02-2015 |
20150194646 | Backpack-Type Power Supply - A backpack-type power supply includes a rechargeable battery, a case, and a harness. The case accommodates the rechargeable battery. The case has a surface. By the harness, a user wears the case on a back of the user with the surface facing the back. The surface is formed with a recession and a protrusion. | 07-09-2015 |
20150194647 | Backpack-Type Power Supply - In a backpack-type power supply, a case accommodates the rechargeable battery. An output terminal is electrically connected to the rechargeable battery. A switching element is electrically connected between the rechargeable battery and the output terminal. A main power switch is electrically connected between the rechargeable battery and the switching element. The processing unit is electrically connected between the switching element and the main power switch to be powered by the rechargeable battery when the main power switch is ON. | 07-09-2015 |