Invention Grant
- Patent Title: Discharge state indicator
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Application No.: US13417443Application Date: 2012-03-12
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Publication No.: US09989596B2Publication Date: 2018-06-05
- Inventor: Torsten Klemm , Gerrit Rönneberg
- Applicant: Torsten Klemm , Gerrit Rönneberg
- Applicant Address: US MA Boston
- Assignee: The Gillette Company LLC
- Current Assignee: The Gillette Company LLC
- Current Assignee Address: US MA Boston
- Agent John M. Lipchitz; Kevin C. Johnson; Steven W. Miller
- Priority: DE102005063045 20051229
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H02K7/00 ; G01N27/416 ; G01R31/36 ; B26B19/38

Abstract:
A circuit for displaying the state of a battery that is almost discharged features a battery, an inductive load, and a controllable switch connected in series. The circuit also includes a display element connected in series with the inductive load and the battery. The controllable switch is opened when a voltage of the battery is lower than a first threshold level and is only closed again when the voltage of the battery is greater than a second threshold level. The circuit may also include a control circuit having a comparator which compares the voltage of the battery with the first threshold level and the second threshold level and triggers the controllable switch accordingly.
Public/Granted literature
- US20120169258A1 DISCHARGE STATE INDICATOR Public/Granted day:2012-07-05
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