EP0374400A2 - Dispositif pour réguler le courant à travers une charge et procédé - Google Patents

Dispositif pour réguler le courant à travers une charge et procédé Download PDF

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Publication number
EP0374400A2
EP0374400A2 EP89119039A EP89119039A EP0374400A2 EP 0374400 A2 EP0374400 A2 EP 0374400A2 EP 89119039 A EP89119039 A EP 89119039A EP 89119039 A EP89119039 A EP 89119039A EP 0374400 A2 EP0374400 A2 EP 0374400A2
Authority
EP
European Patent Office
Prior art keywords
current
actuator
consumer
voltage
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.)
Granted
Application number
EP89119039A
Other languages
German (de)
English (en)
Other versions
EP0374400B1 (fr
EP0374400A3 (fr
Inventor
Hanspeter Dipl.-Ing. Katz
Franz Dipl.-Ing. Ohms
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Telecom GmbH
Original Assignee
ANT Nachrichtentechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ANT Nachrichtentechnik GmbH filed Critical ANT Nachrichtentechnik GmbH
Publication of EP0374400A2 publication Critical patent/EP0374400A2/fr
Publication of EP0374400A3 publication Critical patent/EP0374400A3/fr
Application granted granted Critical
Publication of EP0374400B1 publication Critical patent/EP0374400B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/59—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices including plural semiconductor devices as final control devices for a single load

Definitions

  • the invention is based on an arrangement according to the preamble of claim 1 and an application therefor.
  • the US PS 46 88 162 shows an arrangement for regulating the current through a consumer, in which the voltage emitted by an AC voltage source supplies a consumer with current via a rectifier and via a switching regulator regulated as a function of the source and consumer-side current.
  • the source-side (alternating) current is detected with a current sensor and, after being converted accordingly, compared with the consumer current.
  • the control deviation derived from this serves to control the actuator of the switching regulator with the aim of improving the power factor of the arrangement and the course of the source-side current, cf. in particular the summary and column 2, line 59 - column 3, line 43 with FIG. 1.
  • DE 31 30 571 C2 shows an arrangement in the form of a flow converter for regulating the current through a consumer R, in which a current sensor Dr releases a voltage proportional to the consumer current, which after rectification serves as supply voltage for the control and regulating part of the flow converter , see. in particular the claim and the figure.
  • the object of the invention is to develop the arrangement based on the preamble of claim 1 so that rapid current control is possible, the control circuit itself being to be potential-free from the consumer circuit.
  • an advantageous application should be specified. This object is achieved with respect to the arrangement by the characterizing features of claim 1 and with respect to the application by the features of claim 4.
  • Claims 2 and 3 show configurations of the arrangement.
  • the arrangement according to the invention makes it possible to detect the current to be controlled in a potential-free manner, to provide the control circuit - at any potential - with the necessary supply voltage and a fast control behavior, in particular by using an emitter or source potential controller To achieve with the help of an integrated voltage regulator and a current measuring resistor as a current source.
  • the invention is suitable for use in high-voltage power supplies, in particular for cathode current control for traveling wave tubes.
  • the simple structure and the reliability of the arrangement make it suitable for use in satellites.
  • the consumer RV shown in FIG. 1 is fed via the current control arrangement from a power supply source Q.
  • the power supply source Q is designed here as an AC voltage source. It is given, for example, by the voltage on the secondary winding of the transformer of a push-pull converter.
  • the voltage UE supplied by the AC voltage source Q is rectified via a diode bridge circuit D1-D4 and smoothed by means of the capacitor C1.
  • the actuator RV is fed from the rectified and smoothed supply voltage via the actuator TS1, here designed as a MOS field-effect transistor.
  • the consumer current IV is detected with a current sensor TR1 arranged in the return line for the consumer current IV between the AC voltage source Q and the rectifier D2.
  • the current sensor TR1 consists of one Current transformer with electrical isolation, on the secondary winding w2 a variable proportional to the consumer current IV appears.
  • the supply and control voltages required for regulation are obtained from the proportional variable and the control of the actuator TS1 is also carried out.
  • the voltage appearing on the secondary winding w2 of the current transformer TR1 is rectified by means of the rectifier circuit designed as a diode bridge circuit D5-D8.
  • the series circuit consisting of the resistors R3, R4, R2 and the diode D9 is located between the terminal of the rectifier circuit D5-D8 and the gate connection of the MOS field-effect transistor TS1.
  • the diode D9 is polarized in such a way that the MOS field-effect transistor TS1 can be turned on when the plus potential is supplied by the rectifier circuit.
  • Resistor R2 represents the gate resistance of the MOS field-effect transistor.
  • Resistor R3 forms a smoothing filter together with capacitor C6.
  • the resistor R3, together with the Zener diode ZD2 and the capacitor C5, generates a constant gate potential, that is to say independent of the consumer current.
  • the anode of the Zener diode ZD2 is connected to the connection point of an integrated voltage regulator IC1 and current measuring resistor R1.
  • the source electrode of the MOS field-effect transistor is connected via a source negative feedback resistor R5 both to the consumer RV and also via the current source consisting of the series circuit of the integrated voltage regulator IC1 and the current measuring resistor R1 to the negative potential terminal of the rectifier circuit D5-D8.
  • the rectified current detected by the current transformer TR1 flows via the current path formed by a Zener diode ZD1 - between the terminal of the rectifier circuit D5-D8 and which leads to plus potential Source negative feedback resistor R5 - and back to the current transformer TR1 via the series circuit consisting of voltage regulator IC1 and current measuring resistor R1.
  • the voltage regulator IC1 regulates the voltage drop across the control transistor - MOS field-effect transistor TS1 - until the current specified by the current measuring resistor R1 is established, ie the consumer current IV becomes proportional to the current through the current measuring resistor R1.
  • consumer current IV üUref / R1, in which ü the ratio of the current transformer TR1 and Uref denotes the reference voltage of the voltage regulator IC1.
  • the drain-source path of the control transistor TS1 is bridged by one or more Zener diodes ZD3 (ZD4) in order to protect them from reverse voltages that are too high.
  • the Zener diode ZD5 protects the integrated voltage regulator IC1 against overvoltages.
  • the capacitors C2, C3, C4 and C7 allow the desired amount and phase profile of the controller to be set.
  • a bipolar transistor can also be used as an actuator. 2
  • the actuator is designed as a transistor cascade consisting of the two bipolar transistors TS1 and TS2, the collector-emitter paths of which are connected in series. The control works as in the embodiment of FIG.
  • the Zener diodes ZD3 and ZD4 are de-energized.
  • the consumer current IV then flows through the Zener diodes ZD6, ZD7 and the collector-emitter path of the transistor TS1.
  • the control stroke is then between UCE and 2UCE. If the emitter potential of transistor TS1 is further reduced, transistor TS2 also becomes conductive and the Zener diodes ZD3 and ZD4 become currentless. In this case, the control stroke is between 0 and U CE .
  • Fig. 3 shows an arrangement for the cathode current control of a traveling wave tube with serial voltage generation; i.e. the supply voltages for cathode Ka, anode An, collector Co and Helix Hx, which are obtained by rectification from the pulse voltages UE1, UE2 and UE3, are serially increased.
  • the primary winding w1 of the current sensor TR1 now detects the total current IG flowing in the common current return of the traveling wave tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Rectifiers (AREA)
  • Amplifiers (AREA)
  • Controls For Constant Speed Travelling (AREA)
EP89119039A 1988-12-22 1989-10-13 Dispositif pour réguler le courant à travers une charge et procédé Expired - Lifetime EP0374400B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3843260A DE3843260C1 (fr) 1988-12-22 1988-12-22
DE3843260 1988-12-22

Publications (3)

Publication Number Publication Date
EP0374400A2 true EP0374400A2 (fr) 1990-06-27
EP0374400A3 EP0374400A3 (fr) 1991-11-21
EP0374400B1 EP0374400B1 (fr) 1994-06-29

Family

ID=6369873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119039A Expired - Lifetime EP0374400B1 (fr) 1988-12-22 1989-10-13 Dispositif pour réguler le courant à travers une charge et procédé

Country Status (4)

Country Link
US (1) US4994954A (fr)
EP (1) EP0374400B1 (fr)
CA (1) CA2006426C (fr)
DE (2) DE3843260C1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5284242A (en) * 1992-06-22 1994-02-08 Queens Group, Inc. Folding paperboard package
DE4227890A1 (de) * 1992-08-22 1994-03-03 Ant Nachrichtentech Übertrager mit Schirmung sowie Verwendung
US5345376A (en) * 1993-02-19 1994-09-06 Tescom Corporation Switching power supply with electronic isolation
DE9416084U1 (de) * 1993-10-25 1995-02-23 Papst-Motoren GmbH & Co. KG, 78112 St Georgen Netzgerät
DE4425841A1 (de) 1994-07-21 1996-02-01 Ant Nachrichtentech Kathodenstromregler, insbesondere für einen Wanderfeldröhrenverstärker
DE4425842A1 (de) * 1994-07-21 1996-02-01 Ant Nachrichtentech Kathodenstromregler, insbesondere für einen Wanderfeldröhrenverstärker
DE59708621D1 (de) * 1996-12-17 2002-12-05 Papst Motoren Gmbh & Co Kg Schaltnetzteil
DE19801711A1 (de) * 1998-01-17 1999-07-22 Aixcon Elektrotechnik Gmbh Magnetronstromversorgung
US6044001A (en) * 1999-01-19 2000-03-28 Hughes Electronics Corporation Anode controller circuit for a traveling wave tube
SE514120C2 (sv) * 1999-03-09 2001-01-08 Ericsson Telefon Ab L M Anordning i strömförsörjningsenhet för gallerputsat mikrovågsrör av O-typ
US6392355B1 (en) 2000-04-25 2002-05-21 Mcnc Closed-loop cold cathode current regulator
US6653789B2 (en) * 2001-03-26 2003-11-25 Truck-Lite Co., Inc. Multiregulator circuit and lamp
CN101523711A (zh) * 2006-11-09 2009-09-02 奥斯兰姆有限公司 自振荡直流-直流转换器及其方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726361B2 (fr) * 1974-04-25 1982-06-04
US4302717A (en) * 1980-02-04 1981-11-24 Fairchild Camera And Instrument Corp. Power supply with increased dynamic range
US4488162A (en) * 1980-07-08 1984-12-11 International Business Machines Corporation Self-aligned metal field effect transistor integrated circuits using polycrystalline silicon gate electrodes
DE3130571C2 (de) * 1981-08-01 1983-07-21 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Stromversorgungseinrichtung
DE3236379C2 (de) * 1982-10-01 1986-08-14 Philips Kommunikations Industrie AG, 8500 Nürnberg Schaltungsanordnung zur Erzeugung einer Hilfsspannung
DE3341345C2 (de) * 1983-11-15 1987-01-02 SGS-ATES Deutschland Halbleiter-Bauelemente GmbH, 8018 Grafing Längsspannungsregler
JPS61224857A (ja) * 1985-03-29 1986-10-06 Hitachi Ltd 整流回路の制御装置
DE3741222C1 (en) * 1987-12-05 1988-12-15 Ant Nachrichtentech Switched-mode regulator having a current limiting device

Also Published As

Publication number Publication date
EP0374400B1 (fr) 1994-06-29
DE58907983D1 (de) 1994-08-04
EP0374400A3 (fr) 1991-11-21
CA2006426A1 (fr) 1990-06-22
CA2006426C (fr) 2001-06-12
DE3843260C1 (fr) 1990-05-03
US4994954A (en) 1991-02-19

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