DE1438211B2 - Regulated DC voltage converter - Google Patents
Regulated DC voltage converterInfo
- Publication number
- DE1438211B2 DE1438211B2 DE19611438211 DE1438211A DE1438211B2 DE 1438211 B2 DE1438211 B2 DE 1438211B2 DE 19611438211 DE19611438211 DE 19611438211 DE 1438211 A DE1438211 A DE 1438211A DE 1438211 B2 DE1438211 B2 DE 1438211B2
- Authority
- DE
- Germany
- Prior art keywords
- converter
- voltage
- switching transistor
- transistor
- output
- 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.)
- Pending
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
-
- 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
- H02M3/125—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 thyratron or thyristor type requiring extinguishing means
- H02M3/135—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M3/137—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
-
- 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
-
- 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
-
- 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
- H02M3/3385—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 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
- 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
- H02M7/505—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 thyratron or thyristor type requiring extinguishing means
- H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/525—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Description
Die Erfindung bezieht sich auf einen geregelten Glei'Chspannungsumsetzer, bei dem ein im Strompfad liegender Schalttransistor durch einen durch eine Regelgröße beeinflußbarer Taktgeber periodisch geöffnet und gesperrt wird.The invention relates to a regulated DC voltage converter, in which one in the current path The lying switching transistor is periodically opened by a clock generator that can be influenced by a controlled variable and is blocked.
Es ist bereits eine derartige Anordnung bekannt, bei der als Taktgeber ein astabiler Multivibrator dient. Dem aus zwei Transistoren, einem Kondensator und mehreren Widerständen bestehenden Multivibrator wird als Regelgröße eine von der Ausgangsspannung des Umsetzers abgeleitete, der Differenz aus Ist- und Sollspannung proportionale Spannung an den Basen seiner beiden Transistoren zugeführt, wodurch die Dauer der einen Halbwelle der Multivibratorausgangsspannung veränderbar ist. Über einen an den Kollektoren der beiden Transistoren angeschlossenen Übertrager wird ein Hilfstransistor gesteuert, der mit dem im Strompfad liegenden Schalttransistor zu einer bistabilen Kippanordnung zusammengeschaltet ist.Such an arrangement is already known in which an astable multivibrator is used as the clock generator serves. The one consisting of two transistors, a capacitor and several resistors The multivibrator is a control variable derived from the output voltage of the converter, the difference A voltage proportional to the actual and nominal voltage is supplied to the bases of its two transistors, whereby the duration of one half-wave of the multivibrator output voltage can be changed. Above a transformer connected to the collectors of the two transistors becomes an auxiliary transistor controlled, which with the switching transistor lying in the current path to a bistable flip-flop arrangement is interconnected.
Bei einem weiteren bekannten Gleichspannungsumsetzer wird die Regelspannung im Querzweig einer an den Ausgang des Umsetzers angeschlossenen Brückenschaltung gewonnen und einem npn-Transistor zugeführt, der das Tastverhältnis eines astabilen Multivibrators beeinflußt. Der Multivibrator weist zwei pnp-Transistoren in Emitterschaltung auf und steuert über eine Zenerdiode im Emitterzweig seines einen Transistors eine Transistorverstärkerstufe, die ihrerseits einen im positiven Strompfad liegenden pnp-Schalttransistor periodisch ein- und ausschaltet. In Abhängigkeit von der Regelspannung wird dabei nur die Sperrzeit des Schalttransistors geändert.In a further known DC voltage converter, the control voltage in the shunt branch is a obtained at the output of the converter connected bridge circuit and an npn transistor fed, which affects the duty cycle of an astable multivibrator. The multivibrator has two pnp transistors in emitter circuit and controls his via a zener diode in the emitter branch a transistor a transistor amplifier stage, which in turn has a positive current path pnp switching transistor switches on and off periodically. Depending on the control voltage, only the blocking time of the switching transistor is changed.
Die Multivibratoren der bekannten Anordnungen haben den Nachteil, daß sie nur einen verhältnismäßig kleinen Regelbereich zulassen, wenn zu den Eingangsspannungsschwankungen gleichzeitig Lastschwankungen dazukommen. Die in den Multivibratoren verwendeten i?C-Glieder können nämlich nicht beliebig groß gemacht werden. Der Größe der Kapazität setzen oft die räumlichen Ausmaße und die von der Alterung abhängigen Kapazitätsschwankungen eine Grenze. Andererseits muß der Widerstand des Zeitgliedes hinreichend klein sein, um über ihn noch den Transistor durchsteuern zu können. Technisch möglich ist daher mit den bekannten multivibratorgesteuerten Anordnungen nur ein Verhältnis der Durchschaltzeit zur Periodenzeit von etwa 1:10. Ein kleineres Verhältnis ist auch für die Begrenzung der Kurzschlußleistung sehr wichtig.The multivibrators of the known arrangements have the disadvantage that they only have a relatively Allow a small control range if the input voltage fluctuations are accompanied by load fluctuations join in. The i? C elements used in the multivibrators can namely cannot be made arbitrarily large. The size of the capacity is often set by the spatial dimensions and the aging-dependent capacity fluctuations are a limit. On the other hand, the resistance must of the timing element must be sufficiently small to be able to control the transistor through it. Only one ratio is therefore technically possible with the known multivibrator-controlled arrangements the switching time to the period time of about 1:10. A smaller ratio is also for that Limiting the short-circuit power is very important.
Die Erfindung hat sich zur Aufgabe gestellt, einen geregelten Gleichspannungsumsetzer mit großem Regelbereich zu schaffen. Dies wird gemäß der Erfindung dadurch erreicht, daß als Taktgeber ein induktiv rückgekoppelter Impulsgenerator angeordnet ist und daß mindestens eine, aus der Reihenschaltung einer gesonderten Wicklung des Impulsgeneratorübertragers, eines Gleichrichters und der Emitter-Kollektor-Strecke eines durch die Regelgröße steuerbaren Transistors bestehende Anordnung vorgesehen ist. Mit einem solchen Umsetzer ist ein Durchschaltzeit-Periodenzeit-Verhältnis von 1:40 erzielt worden; ein Verhältnis von etwa 1:100 ist technisch möglich und ist nur mit sehr geringem Aufwand verbunden. Der Umsetzer gemäß der Erfindung hat den weiteren Vorteil, daß durch die galvanische Trennung von Eingang und Ausgang des Reglers eine beliebige Ankopplung der Meßeinrichtung im Ausgangskreis des Umsetzers ermöglicht wird. Gemäß einer weiteren Ausbildung der Erfindung können daher auch von der genannten Anordnung mehrere, z. B. zwei, vorgesehen sein, von denen die eine in Abhängigkeit vom Aussgangsstrom und die andere in Abhängigkeit von der Ausgangsspannung des Umsetzers gesteuert wird.The invention has set itself the task of providing a regulated DC voltage converter with a large To create control range. This is achieved according to the invention in that a clock generator inductively fed back pulse generator is arranged and that at least one from the series circuit a separate winding of the pulse generator transformer, a rectifier and the Emitter-collector path of an existing arrangement that can be controlled by the controlled variable is provided is. With such a converter, a switch-on time-to-period ratio of 1:40 is achieved has been achieved; a ratio of about 1: 100 is technically possible and is only very low Effort involved. The converter according to the invention has the further advantage that by the galvanic Separation of input and output of the controller any coupling of the measuring device is made possible in the output circuit of the converter. According to a further embodiment of the invention can therefore also several, z. B. two, be provided, of which one depending on the output current and the other depending on the output voltage of the converter is controlled.
An Hand eines Ausführungsbeispieles wird die Erfindung näher erläutert. In der Zeichnung gemäß F i g. 1 ist die Anordnung für einen Gleichspannungsumsetzer wiedergegeben, der die beispielsweise aus dem Wechselstromnetz bezogene und gleichgerichtete oder von einer Batterie stammende Spannung Ue auf die erforderliche Betriebsspannung Ua herabsetzt. Im Strompfad des Umsetzers liegt die Kollektor-Emitter-Strecke eines Schalttransistors TS, der durch einen im wesentlichen aus einem Transistor TG und einem Übertrager Ü bestehenden, induktiv rückgekoppelten Impulsgenerator periodisch geöffnet und gesperrt wird. Zu diesem Zweck ist die Steuerstrecke des Schalttransistors TS mit einer Wicklung 1 des Übertragers Ü verbunden. Eine andere Wicklung 4 ist f über einen Gleichrichter D1 an die Kollektor-Emitter-Strecke eines Transistors TJ, eine weitere Wicklung 5 über einen Gleichrichter D 2 an die Kollektor-Emitter-Strecke eines Transistors TU angeschlossen. Zwischen Basis und Kollektor dieser Transistoren liegt jeweils ein Widerstand R2 bzw. i?3. Beide Transistoren TJ, TU werden über je ein einstellbares Brückenglied gesteuert. Dabei wird die Steuerspannung für den Transistor TJ durch den vom Laststrom abhängigen Spannungsabfall an einem im Laststromkreis angeordneten Widerstand R1 bestimmt, während die Steuerspannung für den Transistor TU von der Ausgangsspannung Ua des Umsetzers abgeleitet wird. Zur Glättung der Betriebsspannung ist außerdem dem im Strompfad liegenden Schalttransistor TS eine aus dem Gleichrichter G, der Drossel'Dr und dem Kondensator C bestehende bekannte Siebkette nachgeschaltet.The invention is explained in more detail using an exemplary embodiment. In the drawing according to FIG. 1 shows the arrangement for a DC voltage converter, which reduces the voltage Ue, drawn for example from the AC network and rectified or derived from a battery, to the required operating voltage Ua. In the current path of the converter is the collector-emitter path of a switching transistor TS, which is periodically opened and blocked by an inductively fed back pulse generator consisting essentially of a transistor TG and a transformer U. For this purpose, the control path of the switching transistor TS is connected to a winding 1 of the transformer U. Another winding 4 is f a transistor TJ, a further winding 5 is connected via a rectifier D1, the collector-emitter path of a rectifier D2 to the collector-emitter path of a transistor TU. A resistor R2 or i? 3 is located between the base and collector of these transistors. Both transistors TJ, TU are each controlled via an adjustable bridge element. The control voltage for the transistor TJ is determined by the load current-dependent voltage drop across a resistor R 1 arranged in the load circuit, while the control voltage for the transistor TU is derived from the output voltage Ua of the converter. In order to smooth the operating voltage, the switching transistor TS located in the current path is also followed by a known filter chain consisting of the rectifier G, the Drossel'Dr and the capacitor C.
Aus der Fig. 2 geht die Kurvenform der dem Schalttransistor TS zugeführten Steuerspannung Us hervor. Während der konstanten Durchschaltzeit te ist die Steuerspannung Us rechteckförmig und springt an deren Ende auf einen hohen Wert entgegengesetzter Polarität, wobei der Schalttransistor TS gesperrt wird. Die Steuerspannung Us sinkt annähernd nach einer e-Funktion ab, worauf der Impulsgenerator den nächsten Durchschaltimpuls erzeugt. Die Form der Steuerspannung Us rührt von der unterschiedlichen Belastung des Übertragers V her. Während der Durchschaltzeit te ist die Belastung durch den niederohmigen Basis-Emitter-Widerstand des Transistors TS gegeben; die Gleichrichter D1, D 2 sind in dieser Zeit gesperrt. Während der Sperrzeit T-te sind diese Gleichrichter jedoch durchlässig und liegen mit dem Transistor TJ bzw. TU in Reihe an der Spannung der Wicklung 4 bzw. 5. Die Kollektor-Emitter-Widerstände der Transistoren TJ, TU bilden damit während der Sperrzeit die Belastung für den Übertrager Ü. Zur Begrenzung der an den Wicklungen 4,5 auftretenden Spannungsspitzen dienen die Widerstände R 2, R 3, denen zur wirksameren Begrenzung auch noch jeweils ein nicht dargestellter Kondensator parallel geschaltet sein kann. Die Sperrzeit T-te kann durch die den Steuerstrecken der Transistoren 77, TU über die Brückenglieder zugeführten Steuerspannungen verändert werden. Wenn sich die Spannung Ue The curve shape of the control voltage Us supplied to the switching transistor TS emerges from FIG. 2. During the constant switch-on time te , the control voltage Us is square-wave and at its end jumps to a high value of opposite polarity, the switching transistor TS being blocked. The control voltage Us decreases approximately according to an exponential function, whereupon the pulse generator generates the next switching pulse. The shape of the control voltage Us is due to the different loads on the transformer V. During the turn-on time te , the load is given by the low-ohm base-emitter resistance of the transistor TS ; the rectifiers D1, D 2 are blocked during this time. During the blocking time T-te , however, these rectifiers are permeable and are connected in series with the transistor TJ or TU to the voltage of the winding 4 or 5. The collector-emitter resistors of the transistors TJ, TU thus form the load during the blocking time for the transformer Ü. The resistors R 2, R 3 are used to limit the voltage peaks occurring at the windings 4, 5, and a capacitor (not shown) can also be connected in parallel to each of them for more effective limitation. The blocking time T-te can be changed by the control voltages supplied to the control paths of the transistors 77, TU via the bridge elements. When the voltage Ue
am Umsetzereingang oder der Laststrom ändern, wird die Sperrzeit T-te verlängert oder verkürzt, so daß die Betriebsspannung Ua bis auf die statische Regelabweichung konstant bleibt. Bei Überschreiten des Nennstromes vergrößert sich die Sperrzeit. Demzufolge sinkt die Betriebsspannung Ua ab, im Falle eines Kurzschlusses sogar bis auf Null. Der Kurzschlußstrom übersteigt den Nennstrom nur um ein geringes zulässiges Maß.at the converter input or the load current change, the blocking time T-te is extended or shortened so that the operating voltage Ua remains constant except for the static control deviation. If the nominal current is exceeded, the blocking time increases. As a result, the operating voltage Ua drops, in the event of a short circuit even to zero. The short-circuit current only exceeds the nominal current by a small permissible amount.
Es ist möglich, die Anordnung auch dann zu verwenden, wenn die Betriebsspannung Ua höher als die Spannung Ue sein soll oder eine galvanische Trennung dieser Spannungen erforderlich ist. Zwischen den Punkten Al, Bl und A2, B2 ist zu diesem Zweck ein Übertrager ÜT (F i g. 3) einzufügen, wobei mit dessen Sekundärwicklung noch ein Gleichrichter G' in Reihe zu schalten ist. Gleichrichtung und Siebung könneni dabei auch in anderer Weise erfolgen, wie auch grundsätzlich an Stelle des Schalttransistors TS andere elektronische Schaltelemente, z. B. steuerbare Gleichrichter, einsetzbar sind.It is possible to use the arrangement even if the operating voltage Ua is to be higher than the voltage Ue or a galvanic separation of these voltages is necessary. Between the points Al, Bl and A2, B2 is for this purpose a transfer unit UT (F i g. 3) insert, eluting with a secondary winding even a rectifier G is connected in series'. Rectification and filtering can also take place in other ways, as well as in principle, instead of the switching transistor TS, other electronic switching elements, e.g. B. controllable rectifiers can be used.
Claims (3)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST016152 | 1960-02-24 | ||
| DEST018203 | 1961-08-12 | ||
| AU10724/61A AU249358B2 (en) | 1961-10-27 | Improvements in regulated d. c. toa. c. static inverters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE1438211A1 DE1438211A1 (en) | 1968-12-19 |
| DE1438211B2 true DE1438211B2 (en) | 1970-09-10 |
Family
ID=31720795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19611438211 Pending DE1438211B2 (en) | 1960-02-24 | 1961-08-12 | Regulated DC voltage converter |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE621277A (en) |
| DE (1) | DE1438211B2 (en) |
| DK (1) | DK109151C (en) |
| FR (2) | FR1311122A (en) |
| GB (2) | GB949628A (en) |
| NL (1) | NL261610A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2408381A1 (en) * | 1974-02-21 | 1975-09-04 | Siemens Ag | Control circuitry for power semiconductors - used for transistors in voltage and current controllers |
| EP0035599A2 (en) * | 1980-03-07 | 1981-09-16 | ANT Nachrichtentechnik GmbH | Method for transformer coupled drive of a switching transistor working as final control element of a direct voltage converter |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1613445B1 (en) * | 1967-07-26 | 1972-03-09 | Standard Elek K Lorenz Ag | CIRCUIT ARRANGEMENT FOR OVERLOAD AND SHORT-CIRCUIT PROTECTION OF A DC VOLTAGE CONVERTER |
| US3504263A (en) * | 1967-12-04 | 1970-03-31 | Technipower Inc | Self-oscillating switching type power supply |
| US3958168A (en) * | 1973-01-10 | 1976-05-18 | Kenneth Grundberg | Electronic control circuit |
| US4056734A (en) * | 1976-07-02 | 1977-11-01 | Bell Telephone Laboratories, Incorporated | Compensated base drive circuit to regulate saturated transistor current gain |
-
0
- BE BE621277D patent/BE621277A/xx unknown
- NL NL261610D patent/NL261610A/xx unknown
-
1961
- 1961-02-17 GB GB5948/61A patent/GB949628A/en not_active Expired
- 1961-02-23 FR FR853647A patent/FR1311122A/en not_active Expired
- 1961-02-24 DK DK80361AA patent/DK109151C/en active
- 1961-08-12 DE DE19611438211 patent/DE1438211B2/en active Pending
-
1962
- 1962-08-10 FR FR906731A patent/FR82462E/en not_active Expired
- 1962-10-26 GB GB40617/62A patent/GB943770A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2408381A1 (en) * | 1974-02-21 | 1975-09-04 | Siemens Ag | Control circuitry for power semiconductors - used for transistors in voltage and current controllers |
| EP0035599A2 (en) * | 1980-03-07 | 1981-09-16 | ANT Nachrichtentechnik GmbH | Method for transformer coupled drive of a switching transistor working as final control element of a direct voltage converter |
| EP0035599A3 (en) * | 1980-03-07 | 1982-05-26 | Ant Nachrichtentechnik Gmbh | Method for transformer coupled drive of a switching transistor working as final control element of a direct voltage converter |
Also Published As
| Publication number | Publication date |
|---|---|
| BE621277A (en) | |
| FR1311122A (en) | 1962-12-07 |
| DE1438211A1 (en) | 1968-12-19 |
| GB943770A (en) | 1963-12-04 |
| DK109151C (en) | 1968-03-25 |
| FR82462E (en) | 1964-02-21 |
| GB949628A (en) | 1964-02-12 |
| NL261610A (en) |
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