DAVID JUSTIN SIMMONS
Pilots at Candlewood Dr, Waltham, MA
License number
Massachusetts C0001112
Issued Date
Mar 2012
Expiration Date
Mar 2013
Category
Airmen
Address
Address
65 Candlewood Dr, Waltham, MA 02451
Professional information
Method And System For Minimum Output-Voltage Battery Charger
US Patent:
8405362, Mar 26, 2013
Filed:
Dec 4, 2009
Appl. No.:
12/631564
Inventors:
Steven Leo Martin - Chelmsford MA, US
David Justin Simmons - Waltham MA, US
David Justin Simmons - Waltham MA, US
Assignee:
Linear Technology Corporation - CA
International Classification:
H02J 7/04, H02J 7/16, H02J 7/24
US Classification:
320145, 320132, 320137, 320152, 320157, 320159
Abstract:
An apparatus and method for a portable device incorporating a battery and a battery charger. In the portable device, there are a plurality of system components configured to facilitate a plurality of functions that the portable device is designed to perform. The battery in the portable device is configured for providing an internal power supply to the plurality of system components in the absence of an external input power supply. The battery charger is configured for charging the battery when the external input power supply is available. The battery charger disclosed herein is capable of supplying system power to the system components when voltage of the battery that is being charged is below a limit, thereby allowing the portable device to operate when voltage of the battery drops below the limit.