GB1525416A – Dc-dc converter
– Google Patents
GB1525416A – Dc-dc converter
– Google Patents
Dc-dc converter
Info
Publication number
GB1525416A
GB1525416A
GB16106/76A
GB1610676A
GB1525416A
GB 1525416 A
GB1525416 A
GB 1525416A
GB 16106/76 A
GB16106/76 A
GB 16106/76A
GB 1610676 A
GB1610676 A
GB 1610676A
GB 1525416 A
GB1525416 A
GB 1525416A
Authority
GB
United Kingdom
Prior art keywords
current
transistor
circuit
transistors
control circuit
Prior art date
1976-04-21
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
GB16106/76A
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.)
Philips Components Ltd
Original Assignee
Mullard Ltd
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.)
1976-04-21
Filing date
1976-04-21
Publication date
1978-09-20
1976-04-21
Application filed by Mullard Ltd
filed
Critical
Mullard Ltd
1976-04-21
Priority to GB16106/76A
priority
Critical
patent/GB1525416A/en
1977-04-19
Priority to US05/788,799
priority
patent/US4162524A/en
1977-04-20
Priority to DE19772717378
priority
patent/DE2717378A1/en
1977-04-21
Priority to FR7712051A
priority
patent/FR2349230A1/en
1977-04-21
Priority to JP4522577A
priority
patent/JPS52149316A/en
1978-09-20
Publication of GB1525416A
publication
Critical
patent/GB1525416A/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
H02M3/337—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 push-pull configuration
H02M3/3376—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 push-pull configuration with automatic control of output voltage or current
H02M3/3378—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 push-pull configuration with automatic control of output voltage or current in a push-pull configuration of the parallel type
Abstract
1525416 Protecting DC-DC converters MULLARD Ltd 21 April 1976 16106/76 Heading H2F In a DC-DC converter comprising a switching transistor 1a arranged to switch current from a DC source 31 into an inductance, such as the primary 5a of a transformer 6, coupled via rectifier 10a to output terminals 8, 9, overcurrent protection is provided by monitoring the current of transistor 1a and feeding the resulting signal to a circuit 22a arranged to prevent excessive current in transistor 1a except during the start of each conductive period of the transistor 1a. As described, a control circuit 2 drives the main transistors 1a, 1b in push-pull via driver transistors 3a, 3b. The transistors 1a 1b are protected against over-current due to saturation of transformer 6 or smoothing inductor 11 by means of respective current transformers 17a, 17b the outputs of which are rectified at 19a, differentiated at 21a and, during over-current conditions, turn on transistor 22a which inhibits the control circuit 2. A clamping transistor 29a is turned on by means of a monostable multivibrator (not shown) in control circuit 2 at the beginning of each current pulse so as to prevent spurious operation of the protection circuit by the capacitance discharge surge. Diodes 25a, 26a clamp any negativegoing signals. Items 20a-29a may be made common to both protection circuits for the two transistors 1a, 1b. A conventional current limit circuit and a current balance circuit may be incorporated. A volatage regulator 15 may be included to control the mark/space ratio..
GB16106/76A
1976-04-21
1976-04-21
Dc-dc converter
Expired
GB1525416A
(en)
Priority Applications (5)
Application Number
Priority Date
Filing Date
Title
GB16106/76A
GB1525416A
(en)
1976-04-21
1976-04-21
Dc-dc converter
US05/788,799
US4162524A
(en)
1976-04-21
1977-04-19
DC-DC converter
DE19772717378
DE2717378A1
(en)
1976-04-21
1977-04-20
DC / DC CONVERTER
FR7712051A
FR2349230A1
(en)
1976-04-21
1977-04-21
CONTINUOUS-DIRECT CURRENT CONVERTER
JP4522577A
JPS52149316A
(en)
1976-04-21
1977-04-21
Dccdc converter
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB16106/76A
GB1525416A
(en)
1976-04-21
1976-04-21
Dc-dc converter
Publications (1)
Publication Number
Publication Date
GB1525416A
true
GB1525416A
(en)
1978-09-20
Family
ID=10071302
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB16106/76A
Expired
GB1525416A
(en)
1976-04-21
1976-04-21
Dc-dc converter
Country Status (5)
Country
Link
US
(1)
US4162524A
(en)
JP
(1)
JPS52149316A
(en)
DE
(1)
DE2717378A1
(en)
FR
(1)
FR2349230A1
(en)
GB
(1)
GB1525416A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2319907A
(en)
*
1996-12-02
1998-06-03
Thomson Multimedia Sa
Dc-dc converter with protection circuit
Families Citing this family (17)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5928152B2
(en)
*
1978-11-04
1984-07-11
ファナック株式会社
Protection device for motor drive inverter circuit
DE2916775A1
(en)
*
1979-04-25
1980-10-30
Nixdorf Computer Ag
CIRCUIT ARRANGEMENT FOR PROTECTING A COMPONENT AGAINST OVERCURRENT BY MAGNETIC SATURATION OF AN INDUCTIVITY
US4356543A
(en)
*
1979-12-14
1982-10-26
Reynolds William R
Overcurrent-protected inverter
IT8020996D0
(en)
*
1980-03-28
1980-03-28
Sits Soc It Telecom Siemens
CIRCUIT DEVICE TO MAKE THE HYSTERESIS CYCLE SYMMETRICAL IN A «PUSHPULL» TYPE POWER SUPPLY.
US4307441A
(en)
*
1980-07-28
1981-12-22
United Technologies Corporation
Current balanced DC-to-DC converter
DE3132642A1
(en)
*
1980-08-20
1982-09-16
Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka
«DC VOLTAGE CONVERTER»
US4344125A
(en)
*
1981-05-14
1982-08-10
Reinhard Kalfhaus
System for precise regulation of the output voltage or current of a push-pull inverter having large variations of input voltage
US4576135A
(en)
*
1984-04-24
1986-03-18
Trw Inc.
Fuel injection apparatus employing electric power converter
US4642749A
(en)
*
1986-08-19
1987-02-10
Honeywell, Inc.
Replica driver transformer for inverter circuit
US5111380A
(en)
*
1986-10-10
1992-05-05
Nilssen Ole K
Controlled series-resonance-loaded inverter
DE3929236A1
(en)
*
1989-08-24
1991-02-28
Walter Becker Elekronik Transp
Protection circuit for AC user current connection units – has measurement input connected at line to be monitored and comparator
US5068776A
(en)
*
1990-11-29
1991-11-26
International Business Machines Corporation
Switched-mode DC-DC power converter for reducing effects of magnetization current
US6351073B1
(en)
1999-11-10
2002-02-26
Thomas & Betts International, Inc.
Self-supplied DC/DC switching power supply
US6563721B1
(en)
1999-11-10
2003-05-13
Thomas & Betts International, Inc.
Power supply with multiple AC input voltages
JP2007162800A
(en)
*
2005-12-13
2007-06-28
Kunitekku:Kk
Pipe with flange and its manufacturing method
JP4958691B2
(en)
*
2007-08-31
2012-06-20
株式会社タブチ
Ball valve fixing structure
CN101828329B
(en)
*
2007-10-19
2012-11-21
株式会社村田制作所
Switching power supply
Family Cites Families (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3596165A
(en)
*
1969-07-24
1971-07-27
Tektronix Inc
Converter circuit having a controlled output
NL6919147A
(en)
*
1969-12-19
1971-06-22
US3697851A
(en)
*
1970-12-14
1972-10-10
Hewlett Packard Co
Regulating converter circuit
DE2111222A1
(en)
*
1971-03-09
1972-09-21
Siemens Ag
Balancing circuit for externally controlled transistor direct current converters
US3742371A
(en)
*
1971-12-16
1973-06-26
Tektronix Inc
Wide range regulated power supply utilizing optimized energy storage
US3859586A
(en)
*
1973-09-26
1975-01-07
Bell Telephone Labor Inc
Overcurrent protection circuit utilizing peak detection circuit with variable dynamic response
GB1508423A
(en)
*
1974-06-27
1978-04-26
Standard Telephones Cables Ltd
Control circuit for power supply
1976
1976-04-21
GB
GB16106/76A
patent/GB1525416A/en
not_active
Expired
1977
1977-04-19
US
US05/788,799
patent/US4162524A/en
not_active
Expired – Lifetime
1977-04-20
DE
DE19772717378
patent/DE2717378A1/en
not_active
Withdrawn
1977-04-21
FR
FR7712051A
patent/FR2349230A1/en
not_active
Withdrawn
1977-04-21
JP
JP4522577A
patent/JPS52149316A/en
active
Pending
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2319907A
(en)
*
1996-12-02
1998-06-03
Thomson Multimedia Sa
Dc-dc converter with protection circuit
US5898580A
(en)
*
1996-12-02
1999-04-27
Thomson Multimedia S.A.
Dc/dc converter with a protection circuit
Also Published As
Publication number
Publication date
DE2717378A1
(en)
1977-11-03
US4162524A
(en)
1979-07-24
FR2349230A1
(en)
1977-11-18
JPS52149316A
(en)
1977-12-12
Similar Documents
Publication
Publication Date
Title
GB1525416A
(en)
1978-09-20
Dc-dc converter
GB1325031A
(en)
1973-08-01
Converter circuit
US6061254A
(en)
2000-05-09
Forward converter with active clamp circuit
US4065713A
(en)
1977-12-27
Voltage stabilizer
JPH0615298Y2
(en)
1994-04-20
Continuously variable power supply circuit without switching
ATE28379T1
(en)
1987-08-15
Flyback Switching Power Supply.
GB1040759A
(en)
1966-09-01
Improvements in or relating to electric low-pass filter circuits for smoothing direct current
GB1053581A
(en)
GB1422596A
(en)
1976-01-28
Oscillator circuit and protection arrangement therefor
GB1485553A
(en)
1977-09-14
Voltage supply system for a television receiver
JPS5687115A
(en)
1981-07-15
Switching power source
US4669023A
(en)
1987-05-26
Apparatus for freeing electronic one-way switches from high power dissipation stresses
FR2353991A1
(en)
1977-12-30
Voltage converter for portable equipment – has inductor in series with pulsed transformer primary to act as load for control loop (NL 5.12.77)
JPS5566278A
(en)
1980-05-19
Automatic commutation-type dc-dc converter
JPS57174715A
(en)
1982-10-27
Switching power supply
GB1456383A
(en)
1976-11-24
Dc power supply circuits
JPH0421358A
(en)
1992-01-24
Switching regulator
JPS6318962A
(en)
1988-01-26
Switching power source
JPH03273862A
(en)
1991-12-05
Switching regulator
JPS5992589U
(en)
1984-06-23
power supply
MCLYMAN
1981
Elimination of current spikes in buck power converters[Patent]
JPS55127883A
(en)
1980-10-03
Dc-dc converter
JPS5827215A
(en)
1983-02-17
Overload protecting device for multi-output switching power source
SU1190276A1
(en)
1985-11-07
Direct current converter
KR920000346Y1
(en)
1992-01-15
110v/220v automatic free voltage circuit
Legal Events
Date
Code
Title
Description
1979-01-10
PS
Patent sealed [section 19, patents act 1949]
1983-12-07
PCNP
Patent ceased through non-payment of renewal fee
