EP 3053260 A4 20170510 - BATTERY COMPENSATION SYSTEM USING PWM
Title (en)
BATTERY COMPENSATION SYSTEM USING PWM
Title (de)
BATTERIEKOMPENSATIONSSYSTEM MIT PWM
Title (fr)
SYSTÈME DE COMPENSATION DE BATTERIE PAR PWM
Publication
Application
Priority
- US 201314046969 A 20131006
- US 2014059040 W 20141003
Abstract (en)
[origin: WO2015051248A1] Compensation system adapted for use with a battery-powered, PWM-driven portable electronic device to enable consistent power to the device load despite battery voltage drop resulting from battery depletion, comprising: a voltage divider circuit for proportionally adjusting the voltage to a measurable range; an analog-to-digital converter for receiving the output from the voltage divider and converting it into a digital voltage value; and a microprocessing unit for running software code steps for receiving digital voltage input and user-determined power setting input for determining a compensating duty cycle for application by the software to the PWM to drive the load consistently at the user-determined power setting despite decrease in battery voltage resulting from battery depletion.
IPC 8 full level
G02B 1/116 (2015.01); G02C 11/08 (2006.01); H02M 1/00 (2006.01); H02M 3/156 (2006.01); H03K 7/08 (2006.01); H05B 3/86 (2006.01)
CPC (source: EP KR US)
G02B 27/0006 (2013.01 - EP KR); G02C 11/08 (2013.01 - EP KR); G06F 13/385 (2013.01 - EP KR); G06F 13/4081 (2013.01 - EP KR); H02J 7/0063 (2013.01 - EP KR US); H02J 7/007192 (2020.01 - EP KR US); H02M 3/156 (2013.01 - EP KR US); H02M 3/1563 (2013.01 - EP); H05B 1/023 (2013.01 - EP KR); H05B 3/84 (2013.01 - EP KR); H02M 1/0022 (2021.05 - EP); H05B 2203/011 (2013.01 - EP KR); H05B 2203/013 (2013.01 - EP KR)
Citation (search report)
- [XY] US 2011169409 A1 20110714 - STASKY GLENN A [US], et al
- [Y] US 2013113388 A1 20130509 - REAMS WILLIAM R [US]
- [Y] US 2008144862 A1 20080619 - XU BIN [US]
- [Y] JP H04359688 A 19921211 - ASAHI OPTICAL CO LTD
- [Y] US 2006033459 A1 20060216 - PETER CORNELIUS [DE], et al
- [Y] US 2012187762 A1 20120726 - KIM WAN-JUNG [KR]
- [Y] CN 202160302 U 20120307 - YANFENG VISTEON AUTOMOTIVE ELECTRONICS CO LTD
- [Y] US 2008190912 A1 20080814 - YEUNG WING YIU [CN], et al
- [Y] DE 1951643 A1 19710422 - KINDERMANN ERIK, et al
- See references of WO 2015051248A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2015051248 A1 20150409; AU 2014329396 A1 20160505; AU 2014329396 B2 20190516; CA 2925348 A1 20150409; CN 105684284 A 20160615; EP 3053260 A1 20160810; EP 3053260 A4 20170510; JP 2016536957 A 20161124; JP 6563387 B2 20190821; KR 20160066042 A 20160609
DOCDB simple family (application)
US 2014059040 W 20141003; AU 2014329396 A 20141003; CA 2925348 A 20141003; CN 201480055014 A 20141003; EP 14850350 A 20141003; JP 2016520014 A 20141003; KR 20167011997 A 20141003