Invention Grant
US08482209B2 Circuitry for portable lighting devices and portable rechargeable electronic devices
有权
便携式照明设备和便携式可充电电子设备的电路
- Patent Title: Circuitry for portable lighting devices and portable rechargeable electronic devices
- Patent Title (中): 便携式照明设备和便携式可充电电子设备的电路
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Application No.: US13373802Application Date: 2010-01-20
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Publication No.: US08482209B2Publication Date: 2013-07-09
- Inventor: Stacey West
- Applicant: Stacey West
- Applicant Address: US CA Ontario
- Assignee: Mag Instrument, Inc.
- Current Assignee: Mag Instrument, Inc.
- Current Assignee Address: US CA Ontario
- Agency: Maceiko IP
- Main IPC: H05B37/00
- IPC: H05B37/00
Abstract:
A portable electronic device, such as a flashlight, with a circuit for reducing the initial surge of current that is sent through the lamp filament when a flashlight is turned on is provided. The circuit reduces the stresses placed on the lamp bulb when it is turned on, thereby extending the life expectancy of the lamp bulb. A flashlight with beacon mode that produces light according to a duty cycle of less than 11% is also disclosed.
Public/Granted literature
- US20120133296A1 Circuitry for portable lighting devices and portable rechargeable electronic devices Public/Granted day:2012-05-31
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