DD275560A1 - CURRENT PROBE FOR SWITCHING CONTROL IN NACHRICHTENTECHNISCHE ZENNZEICHENUMSETZERN - Google Patents
CURRENT PROBE FOR SWITCHING CONTROL IN NACHRICHTENTECHNISCHE ZENNZEICHENUMSETZERN Download PDFInfo
- Publication number
- DD275560A1 DD275560A1 DD88319612A DD31961288A DD275560A1 DD 275560 A1 DD275560 A1 DD 275560A1 DD 88319612 A DD88319612 A DD 88319612A DD 31961288 A DD31961288 A DD 31961288A DD 275560 A1 DD275560 A1 DD 275560A1
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- switching
- current sensor
- transistor
- switching regulator
- current
- Prior art date
Links
Classifications
-
- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Dc-Dc Converters (AREA)
Abstract
Die erfindungsgemaesse Schaltungsanordnung bezieht sich auf einen Stromfuehler, der beim Einsatz in einem Schaltregler fuer die vermittlungstechnische c-Ader, insbesondere bei Kennzeichenumsetzern, eine guenstige Verlustleistungsbilanz aufweist und eine einstellbare Begrenzung von Laengsspannungen auf der c-Ader ermoeglicht. Die Transistoren des Last- und Messstromkreises des Stromfuehlers werden von einer Stromquelle gespeist, so dass im Normalbetrieb des Schaltreglers eine minimale Verlustleistung zum Messen des Sollstromes erforderlich ist. Beim Auftreten von Laengsspannungen auf der c-Ader und bei kleinen Leistungslaengen, regelt sich, je nach der Referenzspannung der Stromquelle, der Stromfuehler selbst in den aktiven Bereich. Fig. 1The inventive circuit arrangement relates to a Stromfuehler, which has a favorable power loss balance when used in a switching regulator for the switching c-wire, especially in license plate converters, and allows an adjustable limitation of Laengsspannungen on the c-wire. The transistors of the load and measurement circuit of the Stromfuehlers are powered by a power source, so that during normal operation of the switching regulator, a minimum power loss for measuring the target current is required. When line voltages occur on the c-wire and at low power levels, depending on the reference voltage of the power source, the current controller itself settles in the active area. Fig. 1
Description
elektronischen Kennzeichenumsetzern dar.electronic license plate converters.
vermittlungstechnischen Widerstand RV der c-Ader sowie aus dem Transistor T2 des Meßstromkreises mit demSwitching resistor RV of the c-wire and from the transistor T2 of the measuring circuit with the
gegen die negative Amtsbatteriespannung -U8 (-60V) arbeitet und mit der Regelschaltung RS in seinem Tastverhältnis auf denagainst the negative Amtsbatteriespannung -U 8 (-60V) works and with the control circuit RS in its duty cycle on the
strombestimmenden Widerstand REQ auf Massepotential. Die Basis des Transistors T3 ist mit einem Spannungsteiler zurcurrent-determining resistance REQ at ground potential. The base of the transistor T3 is connected to a voltage divider for
die beiden Transistoren T1 und T2 mit einem konstanten Strom in allen Spannungsbereichen, die der Schaltregler am Emitterdes Transistors T1 erzeugt, wenn sich der vermittlungstechnische Widerstand RV verändert (normale Betriebsart). Derthe two transistors T1 and T2 with a constant current in all voltage ranges, which generates the switching regulator at the emitter of the transistor T1 when the switching resistor RV changes (normal mode). The
kleinstmöglicher Leistungsverlust am Transistor T1 ergibt. Je nach Genauigkeitsforderung an die Konstanz des Stromes Ic kannder Emitterwiderstand RE1, der zur Kompensation der Parameterabweichungen beider Transistoren T1 und T2 erforderlich ist,hinreichend klein dimensioniert werden, so daß auch hier ein nur geringer Leistungsverlust auftritt.smallest possible power loss at the transistor T1 results. Depending on the accuracy requirement for the constancy of the current Ic, the emitter resistor RE1, which is required to compensate for the parameter deviations of both transistors T1 and T2, can be dimensioned sufficiently small, so that only a small power loss occurs here as well.
kleinen Werten hin, muß der Schaltregler SR sehr kleine Einschaltimpulse liefern, ohne Impulse auszulassen (nichtaussetzendersmall values, the switching regulator SR must supply very small switch-on impulses without omitting pulses (non-intermittent
gemeinsamen Verknüpfungspunkt der beiden Emitterwiderstände RE1 und RE 2 konstant bleibt.common connection point of the two emitter resistors RE1 and RE 2 remains constant.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD88319612A DD275560B5 (en) | 1988-09-08 | 1988-09-08 | CURRENT PROBE FOR SWITCHING CONTROL IN NACHRICHTENTECHNISCHE ZENNZEICHENUMSETZERN |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD88319612A DD275560B5 (en) | 1988-09-08 | 1988-09-08 | CURRENT PROBE FOR SWITCHING CONTROL IN NACHRICHTENTECHNISCHE ZENNZEICHENUMSETZERN |
Publications (2)
Publication Number | Publication Date |
---|---|
DD275560A1 true DD275560A1 (en) | 1990-01-24 |
DD275560B5 DD275560B5 (en) | 1994-01-13 |
Family
ID=5602289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD88319612A DD275560B5 (en) | 1988-09-08 | 1988-09-08 | CURRENT PROBE FOR SWITCHING CONTROL IN NACHRICHTENTECHNISCHE ZENNZEICHENUMSETZERN |
Country Status (1)
Country | Link |
---|---|
DD (1) | DD275560B5 (en) |
-
1988
- 1988-09-08 DD DD88319612A patent/DD275560B5/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DD275560B5 (en) | 1994-01-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2821465A1 (en) | ULTRASOUND GENERATOR | |
AT408494B (en) | PROTECTIVE CIRCUIT FOR AN ELECTRONIC DEVICE | |
DE68922210T2 (en) | Signal processing circuits. | |
DE1513420B2 (en) | VOLTAGE REGULATING DEVICE FOR GENERATING A REGULATED DC VOLTAGE WITH A SWITCHING TRANSISTOR AND A CONTINUOUSLY CONTROLLED CONTROL TRANSISTOR | |
DE3633792A1 (en) | CIRCUIT ARRANGEMENT FOR CAPACITY OR ADMITTANCE MEASUREMENT | |
DE3225157C2 (en) | ||
DE3545323A1 (en) | TRANSFORMER-FREE POWER SUPPLY | |
DD275560A1 (en) | CURRENT PROBE FOR SWITCHING CONTROL IN NACHRICHTENTECHNISCHE ZENNZEICHENUMSETZERN | |
DE10145520A1 (en) | Circuit arrangement for the voltage supply of a two-wire sensor | |
DE3303618C2 (en) | ||
DE2422536B2 (en) | Circuit arrangement for current regulation for a DC power controller | |
DE2233930C3 (en) | Circuit arrangement for speed control of a DC motor | |
DE3804074A1 (en) | ACTIVE FILTER | |
DE2100929A1 (en) | Control circuit for supplying an inductive consumer | |
DE3826765C2 (en) | ||
DE1812759B2 (en) | ELECTRONIC REGULATOR FOR ADJUSTING THE OUTPUT VOLTAGE OF A DC GENERATOR | |
EP0552471A1 (en) | Protection circuit for electronic circuits | |
DE2327308C3 (en) | Circuit arrangement for generating a stabilized DC voltage | |
DE2838171C2 (en) | Constant current switch | |
DE3502195A1 (en) | Limiting circuit for alternating current | |
DE1788007C (en) | Circuit arrangement for limiting high DC voltages | |
DE1925688C3 (en) | Device for the uniform current load of rectifiers connected in parallel | |
DE1463150C3 (en) | DC control arrangement with a control transistor | |
DE3023056C2 (en) | Regulated power supply | |
DE2418767C3 (en) | Circuit for regulating the grid 2 voltage for traveling wave tubes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NPI | Change in the person, name or address of the patentee (addendum to changes before extension act) | ||
B5 | Patent specification, 2nd publ. accord. to extension act | ||
RPV | Change in the person, the name or the address of the representative (searches according to art. 11 and 12 extension act) | ||
ENJ | Ceased due to non-payment of renewal fee |