GB1252063A – Dc-dc converter for a photoflash
– Google Patents
GB1252063A – Dc-dc converter for a photoflash
– Google Patents
Dc-dc converter for a photoflash
Info
Publication number
GB1252063A
GB1252063A
GB1436269A
GB1436269A
GB1252063A
GB 1252063 A
GB1252063 A
GB 1252063A
GB 1436269 A
GB1436269 A
GB 1436269A
GB 1436269 A
GB1436269 A
GB 1436269A
GB 1252063 A
GB1252063 A
GB 1252063A
Authority
GB
United Kingdom
Prior art keywords
transistors
transformer
converter
blocking oscillator
photoflash
Prior art date
1968-04-05
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1436269A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics SRL
Original Assignee
ATES Componenti Elettronici SpA
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.)
1968-04-05
Filing date
1969-03-19
Publication date
1971-11-03
1969-03-19
Application filed by ATES Componenti Elettronici SpA
filed
Critical
ATES Componenti Elettronici SpA
1971-11-03
Publication of GB1252063A
publication
Critical
patent/GB1252063A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
H02M3/00—Conversion of dc power input into dc power output
H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
H02M3/3381—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement using a single commutation path
H—ELECTRICITY
H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
H05B41/14—Circuit arrangements
H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
H—ELECTRICITY
H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
H05B41/14—Circuit arrangements
H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Abstract
1,252,063. Transistor blocking oscillator circuits. ATES COMPONENTI ELETTRONICI S.p.A. 19 March, 1969 [5 April, 1968], No. 14362/69. Heading H3T. [Also in Division H2] A D.C.-D.C. converter, for a photoflash tube, comprises a blocking oscillator utilizing a Darlington pair of transistors T1, T2 having feedback viawindings N1, N2 of a transformer and a diode D poled to rectify the output from winding N3 when the transistors are non-conductive. Capacitors C1, C2 reduce the transistor switching time. Inductor L prevents saturation of T2 when T1 is saturated. Resistor R prevents spurious oscillation due to stray L and C in the transformer.
GB1436269A
1968-04-05
1969-03-19
Dc-dc converter for a photoflash
Expired
GB1252063A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
IT1486268
1968-04-05
Publications (1)
Publication Number
Publication Date
GB1252063A
true
GB1252063A
(en)
1971-11-03
Family
ID=32922981
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1436269A
Expired
GB1252063A
(en)
1968-04-05
1969-03-19
Dc-dc converter for a photoflash
Country Status (6)
Country
Link
US
(1)
US3582826A
(en)
CH
(1)
CH489177A
(en)
DE
(1)
DE1916905B2
(en)
FR
(1)
FR2005580A1
(en)
GB
(1)
GB1252063A
(en)
NL
(1)
NL6904173A
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3671773A
(en)
*
1971-05-18
1972-06-20
Us Air Force
D.c. converter having control transistor in blocking oscillator feedback
US4394719A
(en)
*
1981-12-11
1983-07-19
Eastman Kodak Company
Current control apparatus for a flyback capacitor charger
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3161836A
(en)
*
1960-11-03
1964-12-15
Ledex Inc
Pulsing circuit
US3435320A
(en)
*
1967-02-10
1969-03-25
Robert H Lee
Dc to dc converter
1969
1969-02-18
FR
FR6904040A
patent/FR2005580A1/fr
not_active
Withdrawn
1969-03-18
NL
NL6904173A
patent/NL6904173A/xx
unknown
1969-03-19
GB
GB1436269A
patent/GB1252063A/en
not_active
Expired
1969-04-01
CH
CH495469A
patent/CH489177A/en
not_active
IP Right Cessation
1969-04-02
DE
DE19691916905
patent/DE1916905B2/en
not_active
Withdrawn
1969-04-07
US
US814119A
patent/US3582826A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
DE1916905B2
(en)
1971-03-18
FR2005580A1
(en)
1969-12-12
NL6904173A
(en)
1969-10-07
US3582826A
(en)
1971-06-01
CH489177A
(en)
1970-04-15
DE1916905A1
(en)
1970-01-02
Similar Documents
Publication
Publication Date
Title
GB1290304A
(en)
1972-09-27
GB948474A
(en)
1964-02-05
Improvements relating to d.c. to a.c. inverter circuits
GB994178A
(en)
1965-06-02
Inverters
GB1100082A
(en)
1968-01-24
Oscillator converter apparatus
GB1452764A
(en)
1976-10-13
Blocking oscillators
GB1252063A
(en)
1971-11-03
Dc-dc converter for a photoflash
GB1100751A
(en)
1968-01-24
Improvements in or relating to tuning arrangements
GB1168963A
(en)
1969-10-29
Frequency Converter Circuit
GB1472495A
(en)
1977-05-04
Compound transistor circuitry
SE332207B
(en)
1971-02-01
GB1406840A
(en)
1975-09-17
Transistor inverter
GB1100619A
(en)
1968-01-24
Improvements in frequency discriminators
GB1392439A
(en)
1975-04-30
Converter circuits
GB1341327A
(en)
1973-12-19
Voltage convertor
GB842547A
(en)
1960-07-27
Improvements in or relating to amplifiier devices including at least one transistor
GB1077877A
(en)
1967-08-02
Improvements in crystal oscillators
GB1043100A
(en)
1966-09-21
Phase modulator
GB1223077A
(en)
1971-02-17
Frequency modulator
GB1107489A
(en)
1968-03-27
Improvements in or relating to frequency conversion circuits
GB1243590A
(en)
1971-08-18
Frequency divider
GB1070842A
(en)
1967-06-07
Improvements in or relating to high frequency circuit arrangements for capacity transducers
GB1059606A
(en)
1967-02-22
A ringer
GB1104928A
(en)
1968-03-06
Improvements in electronic mixer and frequency changer circuits
GB1102494A
(en)
1968-02-07
Improvements in or relating to voltage stabilising means for dc to dc converters
GB1117092A
(en)
1968-06-12
Improvements in oscillator circuits
Legal Events
Date
Code
Title
Description
1972-03-15
PS
Patent sealed [section 19, patents act 1949]
1973-10-10
PLNP
Patent lapsed through nonpayment of renewal fees
