GB1286354A – A d.c. voltage converter with stabilised output voltage
– Google Patents
GB1286354A – A d.c. voltage converter with stabilised output voltage
– Google Patents
A d.c. voltage converter with stabilised output voltage
Info
Publication number
GB1286354A
GB1286354A
GB41130/70A
GB4113070A
GB1286354A
GB 1286354 A
GB1286354 A
GB 1286354A
GB 41130/70 A
GB41130/70 A
GB 41130/70A
GB 4113070 A
GB4113070 A
GB 4113070A
GB 1286354 A
GB1286354 A
GB 1286354A
Authority
GB
United Kingdom
Prior art keywords
transistor
voltage
output
signal
multivibrator
Prior art date
1969-10-20
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
GB41130/70A
Inventor
Auguste Sautel
Eugene Tinture
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.)
Individual
Original Assignee
Individual
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.)
1969-10-20
Filing date
1970-08-26
Publication date
1972-08-23
1970-08-26
Application filed by Individual
filed
Critical
Individual
1972-08-23
Publication of GB1286354A
publication
Critical
patent/GB1286354A/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
H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback converters
H02M3/33523—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 with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
Abstract
1286354 Automatic voltage control A SAUTEL and E TINTURE 26 Aug 1970 [20 Oct 1969] 41130/70 Heading G3R [Also in Division H2] A D.C. to D.C. converter having a stabilized output voltage comprises a transistor 12 which chops the current from an earthed D.C. source 10 and filter 11 to produce, via members 13—16, a reduced D.C. voltage at output terminals 103, 104 floating relative to earth, a decoupling circuit 4 which senses the stabilized output voltage and provides, with D.C. isolation therefrom, a voltage for application to a comparator 3 also supplied with a reference voltage derived from the source 10, and a pulse duration modulator 6 which is supplied by a multivibrator 5 and controlled by the comparator 6 to produce an output for varying the ratio of on to off time of the transistor 12 to maintain the output voltage at a desired value. As shown in Fig.3, the circuit 4 comprises a transistor 405 controlled by an output 416 of the multivibrator so that transistors 406, 409 are alternately made conductive to produce in the primary winding of a transformer 410 a rectangular waveform signal of the same frequency as the multivibrator, which signal is applied through the secondary winding to make transistors 407, 408 alternately conductive. These transistors control the primary winding of a transformer 411 to which is applied the voltage from terminals 103, 104, the secondary winding thus producing an alternating voltage of the same frequency as the multivibrator and having an amplitude dependent on the converter output voltage. This alternating voltage is passed to members 421-424 to produce a D.C. voltage at terminals 403, 404 for application to the base of one transistor of a differential amplifier of comparator 3, Fig.2 (not shown), the base of the other transistor of this amplifier being supplied with a reference voltage derived from a resistor and Zener diode series connected across the output of the filter 11. The modulator 6 is shown in Fig.4 and comprises a resistorcapacitor circuit 611, 612 which converts the square pulses from the multivibrator 5 into sawtooth signals for application to the base of transistor 607, subsequent amplification in transistor 608 and application to circuit members 613, 614, 609 causing pulses to be produced at the collector of the latter transistor, the width of which pulses are reversed by the transistor 610, Fig.5 (not shown). The output signal from the comparator 3 at terminal 604 varies the level of the sawtooth signals and hence the width of the pulses produced at output terminals 605, 606, which pulses are applied to the transistor 12 through a twostage transistor amplifier 7, Fig.6 (not shown). The filter 11 provides a signal to protection circuit 8, Fig.7 (not shown) which applies a signal to transistor 607 of the modulator 6 when the current through the inductance of the filter exceeds a predetermined value, this signal terminating pulse emission to the transistor 12 and operation of the converter. Circuit 8 includes a thyristor fired by a transistor, conduction of the latter and firing of the former being delayed by respective capacitor circuits.
GB41130/70A
1969-10-20
1970-08-26
A d.c. voltage converter with stabilised output voltage
Expired
GB1286354A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR6935909A
FR2063511A5
(en)
1969-10-20
1969-10-20
Publications (1)
Publication Number
Publication Date
GB1286354A
true
GB1286354A
(en)
1972-08-23
Family
ID=9041778
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB41130/70A
Expired
GB1286354A
(en)
1969-10-20
1970-08-26
A d.c. voltage converter with stabilised output voltage
Country Status (4)
Country
Link
US
(1)
US3611105A
(en)
DE
(1)
DE2043594A1
(en)
FR
(1)
FR2063511A5
(en)
GB
(1)
GB1286354A
(en)
Families Citing this family (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS52203B2
(en)
*
1972-07-20
1977-01-06
IT1076507B
(en)
*
1976-01-14
1985-04-27
Plessey Handel Investment Ag
DC / DC CONVERTER
FR2360204A1
(en)
*
1976-07-29
1978-02-24
Int Standard Electric Corp
Low loss DC converter for emergency equipment – has separate transformer based control circuit for each power transistor
US4124884A
(en)
*
1977-03-07
1978-11-07
Bell Telephone Laboratories, Incorporated
DC to DC converter with regulated input impedance
US4160288A
(en)
*
1978-05-17
1979-07-03
Communications Satellite Corp.
Active filter circuit for regulated dc to dc power supplies
US4301497A
(en)
*
1980-06-16
1981-11-17
International Business Machines Corporation
Flyback converter control with feed forward
DE3109612A1
(en)
*
1981-03-13
1982-09-23
Robert Bosch Gmbh, 7000 Stuttgart
VOLTAGE CONVERTER
DE19800105A1
(en)
*
1998-01-05
1999-07-15
Reinhard Kalfhaus
Current-voltage converter and associated control loop
JPH11252930A
(en)
*
1998-02-27
1999-09-17
Aisin Seiki Co Ltd
Device for energizing control by chopping
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3375428A
(en)
*
1964-02-04
1968-03-26
Lorain Prod Corp
Regulated rectifier circuit
US3373334A
(en)
*
1965-06-01
1968-03-12
Sperry Rand Corp
Regulated d.c. to d.c. power supply
US3376489A
(en)
*
1966-02-21
1968-04-02
Caterpillar Tractor Co
Regulated power supply
US3522509A
(en)
*
1968-10-30
1970-08-04
Scient Data Systems Inc
Floating power supply
US3564393A
(en)
*
1969-03-12
1971-02-16
North American Rockwell
Circuit using capacitor and switch on primary winding of transformer for regulating voltage on secondary winding of transformer
1969
1969-10-20
FR
FR6935909A
patent/FR2063511A5/fr
not_active
Expired
1970
1970-08-24
US
US66184A
patent/US3611105A/en
not_active
Expired – Lifetime
1970-08-26
GB
GB41130/70A
patent/GB1286354A/en
not_active
Expired
1970-09-03
DE
DE19702043594
patent/DE2043594A1/en
active
Pending
Also Published As
Publication number
Publication date
DE2043594A1
(en)
1971-05-06
FR2063511A5
(en)
1971-07-09
US3611105A
(en)
1971-10-05
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Legal Events
Date
Code
Title
Description
1973-01-04
PS
Patent sealed [section 19, patents act 1949]
1978-03-30
PLNP
Patent lapsed through nonpayment of renewal fees
