DE2632381B2 - Inverter circuit - Google Patents
Inverter circuitInfo
- Publication number
- DE2632381B2 DE2632381B2 DE2632381A DE2632381A DE2632381B2 DE 2632381 B2 DE2632381 B2 DE 2632381B2 DE 2632381 A DE2632381 A DE 2632381A DE 2632381 A DE2632381 A DE 2632381A DE 2632381 B2 DE2632381 B2 DE 2632381B2
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- transistors
- transistor
- series
- auxiliary
- 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.)
- Ceased
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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
-
- 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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal 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
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters in a bridge configuration
-
- 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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal 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
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
- H02M1/348—Passive dissipative snubbers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Mechanical Operated Clutches (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Description
durch die Diode überbrückt sein.be bridged by the diode.
Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert Sie zeigt ein schematisches Schaltbild für einen dreiphasigen Wechselrichter. Da es sich um einen dreiphasigen Wechselrichter handelt, sind drei Paare von Transistoren TrX, 7>2und Tr3, Tr4 und TrS, Tr6 jeweils mit den zugehörigen Hilfsschaltungen, .-. B. 7 und 8 vorgesehen. Allen drei Transistorpaaren ist eine Schutzschaltung 9 gemeinsam.The invention is explained in more detail below with reference to an exemplary embodiment shown in the drawing. It shows a schematic circuit diagram for a three-phase inverter. Since it is a three-phase inverter, there are three pairs of transistors TrX, 7> 2 and Tr 3, Tr 4 and TrS, Tr6 each with the associated auxiliary circuits. B. 7 and 8 provided. A protective circuit 9 is common to all three transistor pairs.
Bei dieser Schutzschaltung liegt mit der Drossel L ein Meßwiderstand R 6 in Reihe, an welchem ein Meßsignal j abgreifbar ist, das dem durch den WechselrichterIn this protective circuit, a measuring resistor R 6 is connected in series with the choke L , at which a measuring signal j can be tapped, which corresponds to that generated by the inverter
fließenden Gleichstrom entspricht Die Reihenschaltung L und R 6 wird durch die Diode D 3 überbrücktThe series connection L and R 6 is bridged by the diode D 3
Es sind drei Ausgänge SU, SVund SW vorgesehen, an welche ein dreiphasiger Verbraucher, z. B. ein Asynchronmotor, anschließbar ist. Des weiteren sind Freilaufdioden D4—D9 vorgesehen, die in üblicher Weise arbeiten. Die Freilaufdioden DA, D6 und D8 liegen direkt zwischen je einem Ausging und der positiven Versorgungsleitung 2, die Freilaufdioden D5, Dl und D 9 liegen zwischen den Ausgängen und einem Punkt 10 der negativen Versorgungsleitung 3, der zwischen der Spannungsversorgung und der Zusatzschaitung 9 sich befindet.There are three outputs SU, SV and S W to which a three-phase consumer, e.g. B. an asynchronous motor can be connected. Furthermore, free-wheeling diodes D4-D9 are provided, which work in the usual way. The free-wheeling diodes DA, D6 and D8 are each located directly between an output and the positive supply line 2, the free-wheeling diodes D5, Dl and D 9 are between the outputs and a point 10 of the negative supply line 3, which is between the voltage supply and the additional circuit 9 .
Claims (3)
Totzeit gesperrt sind, und denen je eine Hilfsschal- Diese Aufgabe wird erfindungsgemäß durch dieare controlled in the conductive state, but inverter circuit de »initially described while avoiding a conductive state overlap type in which the transistors used are protected during commutation at the same time during a ι ο with greater security against damage.
Dead time are locked, and each with an auxiliary switch This task is achieved according to the invention by the
mit einer Parallelschaltung aus einem Widerstand Dadurch daß die Steuersignale, mit denen die und einer gleichsinnig zur Durchlaßrichtung der Transistoren eines Paares abwechselnd in den leitenden Transistoren gepolten Diode aufweist, wobei zwei is Zustand gesteuert werden, einen zeitlichen Abstand oder mehr Transistorenpaare vorgesehen sind und voneinander haben, ergibt sich zwischen dem » Abschaldie Transistoren nebst zugehöriger Hilfsschaltung je ten« des ersten Transistors und dem »Einschalten« des durch eine entgegengesetzt gepolte Freilauf-diode zweiten Transistors eine wohldefinierte Totzeit, damit überbrückt sind, dadurch gekennzeichnet, unter gar keinen Umständen über beide Transistoren daß eine Zusatzschaltung (9) mit einer Drossel (L) in 20 ein Kurzschlußpfad zwischen den beiden Versorgungseiner den Paaren der Transistoren (Tr i, Tr 2; Tr3, leitungen entsteht Überraschenderweise hat sich TrA; Tr5, TrS) gemeinsamen Zuleitung liegt und gezeigt, daß auch dann, wenn die Totzeit aus daß die Freilauf-dioden (D5, Dl, D9), welche den Sicherheitsgründen eher größer als zu klein gewählt der Zusatzschaltung (9) benachbarten Transistoren wird und wenn die Hilfsschaltung sorgfältig bemessen (TR 2, Tr 4, Tr 6) zugeordnet sind, auch die 25 wird, Schäden an den Transistoren auftreten.
Zusatzschaltung überbrücken. Die Erfindung beruht auf der Erkenntnis, daß sichdevice is parallel, the features of the characterizing part of claim 1 solved a capacitor in series
with a parallel connection of a resistor Characterized by the fact that the control signals, with which the and one has the same direction to the forward direction of the transistors of a pair alternately polarized in the conductive transistors, two is state controlled, a time interval or more transistor pairs are provided and have from each other , there is a well-defined dead time between the "disconnection of the transistors and the associated auxiliary circuit each" of the first transistor and the "switching on" of the second transistor by means of an oppositely polarized free-wheeling diode, which means that both transistors are bridged under no circumstances that an additional circuit (9) with a choke (L) in 20 creates a short-circuit path between the two supply lines of one of the pairs of transistors (Tr i, Tr 2; Tr 3, lines. Surprisingly, TrA; Tr5, TrS) has a common supply line that even if the dead time from that the freewheeling diodes (D 5, Dl, D9), which for safety reasons rather larger than too small selected the additional circuit (9) adjacent transistors and if the auxiliary circuit carefully dimensioned (TR 2, Tr 4, Tr 6) are assigned , even the 25 will, damage to the transistors will occur.
Bridge additional circuit. The invention is based on the knowledge that
plötzlich, aber innerhalb einer endlichen Zeit von einem Ein weiterer Verteil der Erfindung liegt darin, daßArt (DE-AS 11 85 283, Fig. 2) is such an auxiliary switching bridge circuit consisting of four switching transistors between the device, which is also referred to as an RCD protection circuit DC voltage source and bridge is a choke coil, for the following reason: When one or a transistor with a parallel connected transistor without the auxiliary circuit to apply the control signal to 45 rectifiers, in order to protect the transistors when one of the base fails, the emitter current goes suddenly, but the overlap of the conduction states against overcurrents but falls back to zero within a finite time. However, such an overlap does not occur in the inverter, which is also of the generic type during the collector-emitter voltage.
suddenly, but within a finite time of one Another aspect of the invention is that
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU27062/77A AU511374B2 (en) | 1976-07-19 | 1976-07-15 | Inverter circuit |
DE2632381A DE2632381B2 (en) | 1976-07-19 | 1976-07-19 | Inverter circuit |
NO772362A NO146454C (en) | 1976-07-19 | 1977-07-04 | Inverters CLUTCH |
DK312077A DK312077A (en) | 1976-07-19 | 1977-07-11 | EXCHANGE CIRCUIT |
JP8493777A JPS5312028A (en) | 1976-07-19 | 1977-07-15 | Inverter circuit |
GB30060/77A GB1588135A (en) | 1976-07-19 | 1977-07-18 | Inverter circuits |
SE7708282A SE7708282L (en) | 1976-07-19 | 1977-07-18 | INVERTER COUPLING |
FR7722103A FR2359540A1 (en) | 1976-07-19 | 1977-07-19 | INVERTER |
US05/947,106 US4167776A (en) | 1976-07-19 | 1978-09-29 | Inverter circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2632381A DE2632381B2 (en) | 1976-07-19 | 1976-07-19 | Inverter circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2632381A1 DE2632381A1 (en) | 1978-01-26 |
DE2632381B2 true DE2632381B2 (en) | 1980-10-30 |
Family
ID=5983361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2632381A Ceased DE2632381B2 (en) | 1976-07-19 | 1976-07-19 | Inverter circuit |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5312028A (en) |
AU (1) | AU511374B2 (en) |
DE (1) | DE2632381B2 (en) |
DK (1) | DK312077A (en) |
FR (1) | FR2359540A1 (en) |
GB (1) | GB1588135A (en) |
NO (1) | NO146454C (en) |
SE (1) | SE7708282L (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3429488A1 (en) * | 1984-08-10 | 1986-02-20 | Danfoss A/S, Nordborg | ELECTRONIC SWITCHING DEVICE |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4310866A (en) * | 1979-09-28 | 1982-01-12 | Borg-Warner Corporation | Shootthrough fault protection system for bipolar transistors in a voltage source transistor inverter |
JPS5715693U (en) * | 1980-06-30 | 1982-01-27 | ||
JPS5992230U (en) * | 1982-12-14 | 1984-06-22 | 明立精機株式会社 | Air spring height control device |
US4594650A (en) * | 1983-04-19 | 1986-06-10 | Mitsubishi Denki Kabushiki Kaisha | Inverter device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737755A (en) * | 1972-03-22 | 1973-06-05 | Bell Telephone Labor Inc | Regulated dc to dc converter with regulated current source driving a nonregulated inverter |
-
1976
- 1976-07-15 AU AU27062/77A patent/AU511374B2/en not_active Expired
- 1976-07-19 DE DE2632381A patent/DE2632381B2/en not_active Ceased
-
1977
- 1977-07-04 NO NO772362A patent/NO146454C/en unknown
- 1977-07-11 DK DK312077A patent/DK312077A/en not_active Application Discontinuation
- 1977-07-15 JP JP8493777A patent/JPS5312028A/en active Granted
- 1977-07-18 GB GB30060/77A patent/GB1588135A/en not_active Expired
- 1977-07-18 SE SE7708282A patent/SE7708282L/en not_active Application Discontinuation
- 1977-07-19 FR FR7722103A patent/FR2359540A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3429488A1 (en) * | 1984-08-10 | 1986-02-20 | Danfoss A/S, Nordborg | ELECTRONIC SWITCHING DEVICE |
Also Published As
Publication number | Publication date |
---|---|
FR2359540A1 (en) | 1978-02-17 |
JPS5628104B2 (en) | 1981-06-29 |
DE2632381A1 (en) | 1978-01-26 |
AU2706277A (en) | 1979-01-18 |
GB1588135A (en) | 1981-04-15 |
NO146454B (en) | 1982-06-21 |
NO146454C (en) | 1982-09-29 |
AU511374B2 (en) | 1980-08-14 |
JPS5312028A (en) | 1978-02-03 |
SE7708282L (en) | 1978-01-20 |
DK312077A (en) | 1978-01-20 |
NO772362L (en) | 1978-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAP | Request for examination filed | ||
OD | Request for examination | ||
8263 | Opposition against grant of a patent | ||
8235 | Patent refused |