GB1493302A - Arrangement for supplying a load from a dc voltage source - Google Patents
Arrangement for supplying a load from a dc voltage sourceInfo
- Publication number
- GB1493302A GB1493302A GB13470/75A GB1347075A GB1493302A GB 1493302 A GB1493302 A GB 1493302A GB 13470/75 A GB13470/75 A GB 13470/75A GB 1347075 A GB1347075 A GB 1347075A GB 1493302 A GB1493302 A GB 1493302A
- Authority
- GB
- United Kingdom
- Prior art keywords
- generator
- transistors
- flip
- transistor
- waveform
- Prior art date
- 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
Links
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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/52—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
1493302 Control of DC motors SEB-RAGONOT 2 April 1975 [5 April 1974] 13470/75 Heading H2J A load 2, for example a D.C. motor driving an electric vehicle, is supplied from a D.C. source 1 through a number of parallel switching assemblies, for example four, each comprising a seriesconnected transistor and inductance 3, 7; 4, 8; 5, 9; 6, 10, diodes 11-14 transferring energy from the inductances 3-6 to the motor during off-periods of the transistors, which are successively made conductive for the same time t during a common period T, the interval between successive conduction of the transistors being equal to T/n, where n is the number of switching assemblies. Transistors 7-10 are switched on and off by the control circuit shown in Fig. 2, the time of conduction t being determined by adjustment of a potentiometer 38 and the method of operation producing a resultant motor current waveform (M), Fig. 7 (not shown) whose peak-to-peak variation is reduced, compared with that of the waveform (D) Fig. 6 (not shown) of a single transistor, inductance and diode supply circuit, by a factor dependent on the number n. By adjusting the potentiometer 38 to make the time t equal to T/4, T/2 or 3T/4, the waveform (M) of the motor current becomes a direct current, Figs. 8 and 9 (not shown). A first signal generator 31 produces, at its output 32, master pulses of period T which are applied to a second signal generator 35 and a flip-flop 15 controlling the transistor 7, the other three transistors 8, 9, 10 being controlled by respective flip-flops 16, 17, 18. The output 33 of generator 31 produces a sawtooth waveform of amplitude V and period T, which is applied through threshold circuits 46, 47, 48 to flipflops 16, 17, 18 to cause successive closure of transistors 8, 9, 10 at equal intervals along the base of each sawtooth. Generator 35 produces pulses, delayed by a time t with respect to the master pulses and supplied to flip-flop 15 and a flip-flop 39, which controls a third signal generator 44 producing a sawtooth waveform of the same slope and period as that of generator 31, but delayed by time t with respect thereto and having an amplitude of 3V/4 and base of 3T/4. Generator 44 applies its waveform to flip-flops 16, 17, 18, through threshold circuits 49, 50, 51, to cause successive opening of the transistors 8, 9, 10 at equal intervals along the base of each sawtooth, the transistor 7 being respectively closed and opened by a master pulse from generator 31 and a delayed pulse from generator 35. Feedback from members 15, 51 resets members 35, 39 whereby, with generator 35 also being reset by master pulses at its input 34, the delayed pulses from generator 35 may be suppressed by adjusting potentiometer 38 to make the time t greater than the period T, all the transistors 7-10 then being permanently conductive. A typical cycle of operations is described with reference to the various waveforms of the sawtooth signals, the pulses, the flip-flop outputs and the currents conducted by the transistors, Figs. 3, 4 and 5 (not shown), and to the difference in threshold values between consecutive pairs of threshold circuits 46, 49; 47, 50 and 48, 51. The current of each transistor 7-10 is sensed by a respective resistor 68-71 controlling flip-flops 15-18 through threshold circuits 52-55, whereby a transistor is switched off when the current therethrough reaches a predetermined overload value, switch-on occurring when the next cycle of operations takes place.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7412136A FR2266978B1 (en) | 1974-04-05 | 1974-04-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1493302A true GB1493302A (en) | 1977-11-30 |
Family
ID=9137347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13470/75A Expired GB1493302A (en) | 1974-04-05 | 1975-04-02 | Arrangement for supplying a load from a dc voltage source |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2514843A1 (en) |
FR (1) | FR2266978B1 (en) |
GB (1) | GB1493302A (en) |
IT (1) | IT1034802B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3209070A1 (en) * | 1982-03-12 | 1983-09-22 | Siemens AG, 1000 Berlin und 8000 München | METHOD AND CIRCUIT ARRANGEMENT FOR SWITCHING ELECTRICAL LOADS |
FR2790616A1 (en) * | 1999-03-05 | 2000-09-08 | Sagem | Voltage step-up circuit and electrical distribution network, comprises a control network controlling the sequential opening and closing of switching units controlling current flow to self inducting coils |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2421504A1 (en) * | 1978-03-29 | 1979-10-26 | Inst Vagonostroenia | Digital controller for multiphase thyristor chopper - has clock pulse counter connected via decoder to thyristors and shifted pulse train decoders also receiving output from reverse counter |
US5081409A (en) * | 1989-11-13 | 1992-01-14 | Performance Controls, Inc. | Pulse-width modulated circuit for driving a load |
DE102005041825A1 (en) * | 2005-09-02 | 2007-03-15 | Siemens Ag | Regulating device for a three-phase three-phase machine |
-
1974
- 1974-04-05 FR FR7412136A patent/FR2266978B1/fr not_active Expired
-
1975
- 1975-04-02 GB GB13470/75A patent/GB1493302A/en not_active Expired
- 1975-04-03 IT IT21948/75A patent/IT1034802B/en active
- 1975-04-04 DE DE19752514843 patent/DE2514843A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3209070A1 (en) * | 1982-03-12 | 1983-09-22 | Siemens AG, 1000 Berlin und 8000 München | METHOD AND CIRCUIT ARRANGEMENT FOR SWITCHING ELECTRICAL LOADS |
FR2790616A1 (en) * | 1999-03-05 | 2000-09-08 | Sagem | Voltage step-up circuit and electrical distribution network, comprises a control network controlling the sequential opening and closing of switching units controlling current flow to self inducting coils |
Also Published As
Publication number | Publication date |
---|---|
DE2514843A1 (en) | 1975-10-16 |
FR2266978A1 (en) | 1975-10-31 |
IT1034802B (en) | 1979-10-10 |
FR2266978B1 (en) | 1976-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |