WO2008064008A3 - Voltage clamp to allow low-temperature recharging of nickel-cadmium batteries in emergency lighting fixtures and method of using - Google Patents

Voltage clamp to allow low-temperature recharging of nickel-cadmium batteries in emergency lighting fixtures and method of using Download PDF

Info

Publication number
WO2008064008A3
WO2008064008A3 PCT/US2007/084553 US2007084553W WO2008064008A3 WO 2008064008 A3 WO2008064008 A3 WO 2008064008A3 US 2007084553 W US2007084553 W US 2007084553W WO 2008064008 A3 WO2008064008 A3 WO 2008064008A3
Authority
WO
WIPO (PCT)
Prior art keywords
battery
nickel
emergency lighting
recharging
temperature
Prior art date
Application number
PCT/US2007/084553
Other languages
French (fr)
Other versions
WO2008064008A2 (en
Inventor
David B Crenshaw
Original Assignee
David B Crenshaw
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by David B Crenshaw filed Critical David B Crenshaw
Priority to BRPI0718845-5A priority Critical patent/BRPI0718845A2/en
Priority to MX2009005116A priority patent/MX2009005116A/en
Priority to AU2007323912A priority patent/AU2007323912A1/en
Priority to CA002669713A priority patent/CA2669713A1/en
Priority to EP07854621.5A priority patent/EP2082477A4/en
Publication of WO2008064008A2 publication Critical patent/WO2008064008A2/en
Publication of WO2008064008A3 publication Critical patent/WO2008064008A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/05—Capacitor coupled rectifiers

Abstract

The present invention relates to emergency lighting ballasts having rechargeable batteries, usually of the nickel-cadmium type and more specifically to an apparatus to facilitate the charging of the battery pack at temperatures generally below normal operating ranges of the batteries (such as below 0° C) without damaging the battery. The apparatus includes such as a reverse-biased zener diode which has a breakdown voltage in the reverse mode which is at or below the maximum allowable charging voltage for the battery. Accordingly, when ambient conditions would otherwise allow the charging current of the battery to exceed the allowable level, the clamping zener diode breaks down shunting the excess current away from the battery.
PCT/US2007/084553 2006-11-13 2007-11-13 Voltage clamp to allow low-temperature recharging of nickel-cadmium batteries in emergency lighting fixtures and method of using WO2008064008A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BRPI0718845-5A BRPI0718845A2 (en) 2006-11-13 2007-11-13 VOLTAGE LOCKING TO ALLOW LOW TEMPERATURE RECOVERY OF NICKEL - CADMIUM IN EMERGENCY LIGHTING APPLIANCES AND METHOD OF USE
MX2009005116A MX2009005116A (en) 2006-11-13 2007-11-13 Voltage clamp to allow low-temperature recharging of nickel-cadmium batteries in emergency lighting fixtures and method of using.
AU2007323912A AU2007323912A1 (en) 2006-11-13 2007-11-13 Voltage clamp to allow low-temperature recharging of nickel-cadmium batteries in emergency lighting fixtures and method of using
CA002669713A CA2669713A1 (en) 2006-11-13 2007-11-13 Voltage clamp to allow low-temperature recharging of nickel-cadmium batteries in emergency lighting fixtures and method of using
EP07854621.5A EP2082477A4 (en) 2006-11-13 2007-11-13 Voltage clamp to allow low-temperature recharging of nickel-cadmium batteries in emergency lighting fixtures and method of using

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55895506A 2006-11-13 2006-11-13
US11/558,955 2006-11-13

Publications (2)

Publication Number Publication Date
WO2008064008A2 WO2008064008A2 (en) 2008-05-29
WO2008064008A3 true WO2008064008A3 (en) 2008-07-31

Family

ID=39430482

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/084553 WO2008064008A2 (en) 2006-11-13 2007-11-13 Voltage clamp to allow low-temperature recharging of nickel-cadmium batteries in emergency lighting fixtures and method of using

Country Status (6)

Country Link
EP (1) EP2082477A4 (en)
AU (1) AU2007323912A1 (en)
BR (1) BRPI0718845A2 (en)
CA (1) CA2669713A1 (en)
MX (1) MX2009005116A (en)
WO (1) WO2008064008A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015166386A1 (en) 2014-04-29 2015-11-05 Koninklijke Philips N.V. Emergency lighting system and method for automatic heating power equalization

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376263A (en) * 1980-11-06 1983-03-08 Braun Aktiengesellschaft Battery charging circuit
US5646502A (en) * 1995-08-28 1997-07-08 Nsi Enterprises, Inc. Emergency lighting circuit for shunt-regulated battery charging and lamp operation
US5767657A (en) * 1996-03-26 1998-06-16 Motorola, Inc. Battery charger having a battery discharge prevention circuit
US5808421A (en) * 1994-03-28 1998-09-15 Buonocunto; Nicholas Ballast circuit having dual voltage source and emergency battery
US6518732B2 (en) * 2000-03-27 2003-02-11 Honeywell International Inc. System and method for optimal battery usage in electric and hybrid vehicles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4719401A (en) * 1985-12-04 1988-01-12 Powerplex Technologies, Inc. Zener diode looping element for protecting a battery cell
US6331763B1 (en) * 1998-04-15 2001-12-18 Tyco Electronics Corporation Devices and methods for protection of rechargeable elements
US6828733B1 (en) * 1998-10-30 2004-12-07 David B. Crenshaw Remote lamp control apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376263A (en) * 1980-11-06 1983-03-08 Braun Aktiengesellschaft Battery charging circuit
US5808421A (en) * 1994-03-28 1998-09-15 Buonocunto; Nicholas Ballast circuit having dual voltage source and emergency battery
US5646502A (en) * 1995-08-28 1997-07-08 Nsi Enterprises, Inc. Emergency lighting circuit for shunt-regulated battery charging and lamp operation
US5767657A (en) * 1996-03-26 1998-06-16 Motorola, Inc. Battery charger having a battery discharge prevention circuit
US6518732B2 (en) * 2000-03-27 2003-02-11 Honeywell International Inc. System and method for optimal battery usage in electric and hybrid vehicles

Also Published As

Publication number Publication date
MX2009005116A (en) 2009-08-18
CA2669713A1 (en) 2008-05-29
EP2082477A2 (en) 2009-07-29
AU2007323912A1 (en) 2008-05-29
EP2082477A4 (en) 2013-07-24
WO2008064008A2 (en) 2008-05-29
BRPI0718845A2 (en) 2014-02-04

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