发明名称 |
Improved state of charge indicator for a battery charger |
摘要 |
A power tool including a motor, an input unit such as a variable-speed trigger switch, and a controller is provided. The controller controls the speed of the motor as a function of the input level indicated by the electrical signal from the input unit. The function is a first expression within a first predetermined range of the input level and a second expression within a second predetermined range of the input level, where the second expression corresponds to a polynomial of a second degree or higher and is different from the first expression. |
申请公布号 |
EP2375540(A3) |
申请公布日期 |
2014.08.06 |
申请号 |
EP20110161555 |
申请日期 |
2011.04.07 |
申请人 |
BLACK & DECKER INC. |
发明人 |
CUNANAN, REGINA GRACIA C.;WOHLTMAN, BRIAN K. |
分类号 |
H02J7/00;G01R31/36;H01M10/48;H05B33/08 |
主分类号 |
H02J7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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