DE2659636B1 - Circuit arrangement for controlling a transistor push-pull inverter - Google Patents
Circuit arrangement for controlling a transistor push-pull inverterInfo
- Publication number
- DE2659636B1 DE2659636B1 DE19762659636 DE2659636A DE2659636B1 DE 2659636 B1 DE2659636 B1 DE 2659636B1 DE 19762659636 DE19762659636 DE 19762659636 DE 2659636 A DE2659636 A DE 2659636A DE 2659636 B1 DE2659636 B1 DE 2659636B1
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- inverter
- control
- control pulse
- transistor
- 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.)
- Withdrawn
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
- H02M3/22—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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Description
Die Schaltung zur Symmetrieregelung der Ausgangshalbwellen des Wechselrichters besteht aus zwei Stromwandlern Stw 1 und Stw2 in Verbindung mit je einem Spannungsteiler R 5, R 6 und R 7, R 8, einer Spitzengleichrichterschaltung D1, C1 und D2, C2 sowie je einem Komparator K 1 und K2. Jeder der beiden Komparatoren ist mit einer Schaltung 11, 12 zur Steuerimpulsbildung verbunden, deren Ausgang an die Basis der Schalttransistoren T1 und T2 angeschlossen ist. The circuit for balancing the output half-waves of the inverter consists of two current transformers Stw 1 and Stw2 in connection with a voltage divider each R 5, R 6 and R 7, R 8, a peak rectifier circuit D1, C1 and D2, C2 as well one comparator each K 1 and K2. Each of the two comparators comes with a circuit 11, 12 connected to control pulse generation, the output of which to the Base the switching transistors T1 and T2 is connected.
Die beiden Stromwandler Stw1, Stw2 sind primärseitig in den Emitterkreis der Schalttransistoren T1, T2 eingeschaltet. Ihre Sekundärwicklungen, die eine dem Emitterstrom proportionale Meßgröße liefern, sind durch je einen Bürdenwiderstand R 1, R 2 abgeschlossen. Parallel zu den Bürdenwiderständen ist je ein Spannungsteiler R5, R 6 und R7, R 8 vorgesehen, an deren Abgriff jeweils die proportionalen Meßwerte der Momentanwerte der Emitterströme für die Komparatoren K 1, K 2 abgenommen werden. Außerdem ist jedem Bürdenwiderstand eine Scheitelwertgleichrichterschaltung mit den Gleichrichterdioden D1, D2, den Speicherkondensatoren C1, C2 und den Entladewiderständen R 3, R 4 parallelgeschaltet. Diese Widerstände sollen die Kondensatoren etwas entladen und damit aufnahmebereit für die Scheitelwerte der folgenden Periode machen. Die Speicherkondensatoren, die mit je einem weiteren Eingang der Komparatoren K1, K2 verbunden sind, liefern einen den Maximalströmen in den Schalttransistoren proportionalen Meßwert. Der Vergleich der so gewonnenen Meßwerte in den Komparatoren K 1, K 2 erfolgt derart, daß der Momentanwert des Stromes des jeweils leitenden Schalttransistors (z. B. T1) über den zugehörigen Spannungsteiler (R5, R6) und der Maximalwert des Stromes des in der vorhergehenden Schaltphase leitend gewesenen Schalttransistors (T2) vom zugehörigen Speicherkondensator (C2) an die beiden Eingänge des dem leitenden Transistor zugeordneten Komparators (K l ) geführt sind. Entsprechendes gilt für den Spannungsteiler R 7, R 8, den Speicherkondensator C1 und den Komparator K 2. Bei Gleichheit der beiden Meßwerte liefert der Ausgang des jeweils vergleichenden Komparators ein digitales Signal, das als Sperrsignal an die zugehörig Schaltung zur Impulsbildung gegeben wird und de 1 Leistungstransistor vorzeitig abschaltet, bevor ein Sperrsignal vom Regler Rganliegt. The two current transformers Stw1, Stw2 are on the primary side in the emitter circuit the switching transistors T1, T2 switched on. Your secondary windings, the one dem Supplying the emitter current proportional measured variable are each through a load resistor R 1, R 2 completed. A voltage divider is installed parallel to the load resistors R5, R 6 and R7, R 8 are provided, at their tapping the proportional measured values the instantaneous values of the emitter currents for the comparators K 1, K 2 can be taken. In addition, each load resistor has a peak value rectifier circuit the rectifier diodes D1, D2, the storage capacitors C1, C2 and the discharge resistors R 3, R 4 connected in parallel. These resistors are supposed to discharge the capacitors a little and thus make ready for the peak values of the following period. the Storage capacitors, each with a further input of the comparators K1, K2 are connected, deliver one of the maximum currents in the switching transistors proportional Measured value. The measured values obtained in this way are compared in the comparators K 1, K 2 such that the instantaneous value of the current of the respective conductive switching transistor (e.g. T1) via the associated voltage divider (R5, R6) and the maximum value of the Current of the switching transistor that was conductive in the previous switching phase (T2) from the associated storage capacitor (C2) to the two inputs of the conductive one Transistor associated comparator (K l) are performed. The same applies to the voltage divider R 7, R 8, the storage capacitor C1 and the comparator K 2. If the two measured values are equal, the output of the respective comparative Comparator a digital signal that acts as a blocking signal to the associated circuit is given for pulse generation and the 1 power transistor switches off prematurely, before there is a blocking signal from controller R.
Um eine gute Dynamik der Gesamtregelung des Wechselrichters zu ermöglichen, muß dabei eine kleine definierte Unsymmetrie zugelassen werden. Sie wird durch die Widerstände R3, R5, R6 bzw. R4, R7, R8 bestimmt. To enable good dynamics of the overall control of the inverter, a small, defined asymmetry must be allowed. She is through the Resistors R3, R5, R6 or R4, R7, R8 are determined.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762659636 DE2659636B1 (en) | 1976-12-30 | 1976-12-30 | Circuit arrangement for controlling a transistor push-pull inverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762659636 DE2659636B1 (en) | 1976-12-30 | 1976-12-30 | Circuit arrangement for controlling a transistor push-pull inverter |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2659636B1 true DE2659636B1 (en) | 1978-04-13 |
Family
ID=5997080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19762659636 Withdrawn DE2659636B1 (en) | 1976-12-30 | 1976-12-30 | Circuit arrangement for controlling a transistor push-pull inverter |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2659636B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2916833A1 (en) * | 1979-04-26 | 1980-11-06 | Reinhard Kalfhaus | Push=pull chopped voltage regulator - maintains steady output voltage by comparing voltage-time ratios of two conductive periods of switching transistors |
DE20303593U1 (en) * | 2002-12-23 | 2004-05-06 | Steca Batterieladesysteme und Präzisionselektronik GmbH | Switching transformer, especially for use as electronic ballast for a direct current discharge bulb, has a control unit with two field effect transistors |
-
1976
- 1976-12-30 DE DE19762659636 patent/DE2659636B1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2916833A1 (en) * | 1979-04-26 | 1980-11-06 | Reinhard Kalfhaus | Push=pull chopped voltage regulator - maintains steady output voltage by comparing voltage-time ratios of two conductive periods of switching transistors |
DE20303593U1 (en) * | 2002-12-23 | 2004-05-06 | Steca Batterieladesysteme und Präzisionselektronik GmbH | Switching transformer, especially for use as electronic ballast for a direct current discharge bulb, has a control unit with two field effect transistors |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
Q276 | The application caused the suspense of application no: |
Ref document number: 2751696 Country of ref document: DE |
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8239 | Disposal/non-payment of the annual fee |