EP0076599A2 - Netzgerät - Google Patents

Netzgerät Download PDF

Info

Publication number
EP0076599A2
EP0076599A2 EP82305003A EP82305003A EP0076599A2 EP 0076599 A2 EP0076599 A2 EP 0076599A2 EP 82305003 A EP82305003 A EP 82305003A EP 82305003 A EP82305003 A EP 82305003A EP 0076599 A2 EP0076599 A2 EP 0076599A2
Authority
EP
European Patent Office
Prior art keywords
power unit
zero potential
circuit
voltage
current
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
EP82305003A
Other languages
English (en)
French (fr)
Other versions
EP0076599A3 (en
EP0076599B1 (de
Inventor
Joerg Schmidt
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.)
Johnson Service Co
Original Assignee
Johnson Service Co
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 Johnson Service Co filed Critical Johnson Service Co
Publication of EP0076599A2 publication Critical patent/EP0076599A2/de
Publication of EP0076599A3 publication Critical patent/EP0076599A3/en
Application granted granted Critical
Publication of EP0076599B1 publication Critical patent/EP0076599B1/de
Expired legal-status Critical Current

Links

Images

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
    • G05F1/618—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series and in parallel 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
    • G05F1/577—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 for plural loads
    • G05F1/585—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 for plural loads providing voltages of opposite polarities

Definitions

  • the invention relates to power units having two output voltages of opposite polarity and common zero potential which, for connection to an input a.c. voltage, has a rectifier and a linear longitudinal regulator for each output voltage.
  • Such a power unit is known from the article "Integrated Voltage Regulator” in Elektroniktechnisch 6/1979,pp.24 to 46.
  • Installations which have a central mains supply connected via a transformer to a transmitter with an incorporated power unit and a plurality of remote electronic regulators each having an incorporated power unit.
  • a central mains supply connected via a transformer to a transmitter with an incorporated power unit and a plurality of remote electronic regulators each having an incorporated power unit.
  • one connection of the secondary winding of the transformer is chosen as the zero potential.
  • the secondary winding supplies a voltage serving as an input a.c. voltage U to the transmitter and the regulators.
  • the transmitter voltage at an output A of the transmitter is also related to this zero potential.
  • the transmitter voltage is applied to inputs E 1 to E 4 of the regulators 3a-d, respectively, and is used for the control thereof.
  • a power unit with two output voltages of opposite polarity and common zero potential which, for connection to an input a.c. voltage, has a rectifier and a linear longitudinal regulator for each output voltage, characterized in that a current balancing circuit (4, 5, 6) is arranged between the rectifiers (D1, D2) and the longitudinal regulators (IC1, IC2) and that the line carrying the zero potential (0) is connected to one of the two lines of the input a.c. voltage (iU.
  • Power units according to the invention have a balanced current on the zero potential line. As a result, it is possible to use a common neutral conductor which reduces expenditure in connection with the line. It is even possible to connect regulators with a switching behaviour and can be controlled with a d.c. voltage from the remote transmitter, without feedbacks occurring.
  • Fig 2 shows a power unit, to whose input terminals are applied the input a.c. voltage U .
  • the lower input terminal in Fig 2 has zero potential and is designated by 0.
  • the input a.c. voltage U is rectified by two rectifiers D1 and D2. As the rectifiers have opposite polarity, two voltages occur at the two following capacitors Cl and C2 with different polarities related to the common zero potential. These two voltages are applied by means of low-valued resistors R1 or R2 of a current measuring circuit 4 to in each case one linear longitudinal regulator IC1 or IC2.
  • the longitudinal regulators comprise known integrated voltage regulators. Longitudinal regulators IC1 and IC2 are wired to capacitors C3 to C6 in order to prevent undesired oscillations.
  • the two output voltages +U A and -U A related to the zero potential
  • a comparator circuit 5 To current measuring circuit 4 is connected a comparator circuit 5 and to the latter a current control circuit 6. Together all the three circuits 4, 5 and 6 form a current balancing circuit.
  • the current measuring circuit 4 comprises a bridge circuit formed from resistors R3 to R6 and which measures the voltage drop corresponding to the current J 1 or J 2 through resistor Rl or R2. These voltage values reach the comparator circuit 5, which comprises the operational amplifier IC3 and the resistors R7 and R8 at the inverting or non-inverting input, resistor R7 from the non-inverting input to the zero potential 0 and resistor R10 from the output to the inverting input of the operational amplifier IC3.
  • the comparison result at the output of the operational amplifier IC3 is a positive or negative voltage value, depending on whether current J 1 or current J 2 preponderates. This voltage value reaches the base of transistor Tl or T2 across a diode D3 or D4.
  • the collector of transistor Tl is connected to the input of longitudinal regulator IC1 and its emitter is connected across a resistor R13 to the zero potential.
  • a resistor R11 is connected from the base of transistor Tl to zero potential.
  • Transistor T2 is connected in the same way with resistors R12 and R14 between the input of longitudinal regulator IC 2 and zero potential.
  • the voltages corresponding to currents J 1 and J 2 are determined by the current measuring circuit 4 compared with one another in comparator circuit 5 acting as a proportional controller and a resulting voltage value is supplied to transistor Tl or T2 acting as the control element. Transistor Tl or T2 then carries such a current that, apart from the very small control deviation, currents J 1 and J 2 are the same.
  • Fig 3 shows a power unit in which one output voltage +U A is much more highly loaded than the other output voltage -U . Due to the lighter loading, a A circuit comprising a resistor R12 and a Zener diode D6 is used as the longitudinal regulator for this output voltage -U A .
  • the input and output connection is the same as the circuit according to Fig 2 and consequently the same references are used for the same parts.
  • Zener diode D5 Downstream of capacitor Cl a series connection of a resistor R13 and a Zener diode D5 is connected to zero potential.
  • Zener diode D5 has the same Zener voltage as Zener diode D6 and resistors R12 and R13 are identical.
  • This power unit also has a current measuring circuit 4', to which is connected a comparator circuit 5'.
  • the following current control circuit 6' has only one transistor T3 in series with a resistor Rll connected from the input of longitudinal regulator 7 to zero potential A.
  • the addition of the apostrophe means that in principle the circuit with the same reference - numeral is used.
  • Transistor 13 is adequate, provided that the output voltage -U A is more lightly loaded than output voltage +U , because then a balancing current A only has to flow in the lightly loaded branch.
  • Current J 6 is the same as current J 7 , it being assumed that current J 2 is lower than current J 6 .
  • Current J 1 is subject to greater fluctuations and greater loading and consequently so is current J 8 .
  • Current J 8 is determined by the current measuring circuit 4' and from this a control signal for transistor T3 is obtained in such a way that current J 5 is the same as current J8.

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)
  • Control Of Voltage And Current In General (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP82305003A 1981-10-01 1982-09-22 Netzgerät Expired EP0076599B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813139066 DE3139066A1 (de) 1981-10-01 1981-10-01 Netzgeraet
DE3139066 1981-10-01

Publications (3)

Publication Number Publication Date
EP0076599A2 true EP0076599A2 (de) 1983-04-13
EP0076599A3 EP0076599A3 (en) 1984-05-16
EP0076599B1 EP0076599B1 (de) 1987-05-27

Family

ID=6143156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82305003A Expired EP0076599B1 (de) 1981-10-01 1982-09-22 Netzgerät

Country Status (6)

Country Link
EP (1) EP0076599B1 (de)
JP (1) JPS5875223A (de)
AU (1) AU8868582A (de)
DE (1) DE3139066A1 (de)
NO (1) NO823287L (de)
ZA (1) ZA826852B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195822A4 (de) * 1984-09-20 1987-06-11 Mitsubishi Electric Corp Umwandler.
US4686448A (en) * 1986-08-01 1987-08-11 The United States Of America As Represented By The Secretary Of The Air Force Slewing power supply for programmable phase shifter drive
EP0448026A3 (en) * 1990-03-22 1992-11-19 Tokyo Electric Co., Ltd. Power supply for electrophotography apparatus
WO1999046611A3 (en) * 1998-03-10 1999-12-02 Indigo Manufacturing Inc Power supply circuit
WO2002019074A3 (en) * 2000-08-31 2002-06-20 Primarion Inc Transient suppression power regulation
EP1315276A3 (de) * 2001-11-27 2005-03-23 Power Integrations, Inc. Verfahren und Vorrichtung zur Symmetrierung der Leckströme von aktiven Kondensatoren
US6975494B2 (en) 2001-01-29 2005-12-13 Primarion, Inc. Method and apparatus for providing wideband power regulation to a microelectronic device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004038534A1 (de) * 2004-08-06 2006-03-16 Bosch Rexroth Ag Verlustarmer Spannungsteiler, insbesondere für Zwischenkreise

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646428A (en) * 1970-11-27 1972-02-29 Bell Telephone Labor Inc Symmetrical voltage regulator
US3704381A (en) * 1971-09-02 1972-11-28 Forbro Design Corp High stability current regulator controlling high current source with lesser stability
JPS5528167A (en) * 1978-08-18 1980-02-28 Sutatsukusu Kogyo Kk Parallel type constant voltage source unit by constant current feeding

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195822A4 (de) * 1984-09-20 1987-06-11 Mitsubishi Electric Corp Umwandler.
US4686448A (en) * 1986-08-01 1987-08-11 The United States Of America As Represented By The Secretary Of The Air Force Slewing power supply for programmable phase shifter drive
EP0448026A3 (en) * 1990-03-22 1992-11-19 Tokyo Electric Co., Ltd. Power supply for electrophotography apparatus
WO1999046611A3 (en) * 1998-03-10 1999-12-02 Indigo Manufacturing Inc Power supply circuit
WO2002019074A3 (en) * 2000-08-31 2002-06-20 Primarion Inc Transient suppression power regulation
US7391192B2 (en) 2000-08-31 2008-06-24 Primarion, Inc. Apparatus and system for providing transient suppression power regulation
US7616456B2 (en) 2000-08-31 2009-11-10 Primarion Corporation Apparatus and system for providing transient suppression power regulation
US6975494B2 (en) 2001-01-29 2005-12-13 Primarion, Inc. Method and apparatus for providing wideband power regulation to a microelectronic device
EP1315276A3 (de) * 2001-11-27 2005-03-23 Power Integrations, Inc. Verfahren und Vorrichtung zur Symmetrierung der Leckströme von aktiven Kondensatoren
US6980451B2 (en) 2001-11-27 2005-12-27 Power Integrations, Inc. Method and apparatus for balancing active capacitor leakage current
US7133301B2 (en) 2001-11-27 2006-11-07 Power Integrations, Inc. Method and apparatus for balancing active capacitor leakage current
US7397680B2 (en) 2001-11-27 2008-07-08 Power Integrations, Inc. Method and apparatus for balancing active capacitor leakage current

Also Published As

Publication number Publication date
EP0076599A3 (en) 1984-05-16
AU8868582A (en) 1983-04-14
EP0076599B1 (de) 1987-05-27
ZA826852B (en) 1983-10-26
NO823287L (no) 1983-04-05
DE3139066A1 (de) 1983-04-14
JPS5875223A (ja) 1983-05-06

Similar Documents

Publication Publication Date Title
EP0505499B1 (de) Stabilisierte gabelstromversorgung
US3303411A (en) Regulated power supply with constant voltage/current cross-over and mode indicator
EP0076599A2 (de) Netzgerät
US4156150A (en) Circuit for regulating a DC voltage on which a large AC voltage is superimposed
US3241035A (en) A.c.-d.c. regulated power supply
US3743949A (en) Rms sensing apparatus
SE8604821L (sv) Slutsteg med automatisk nivakontroll for netsignalering
US5726875A (en) AC-DC adapter
MY102944A (en) Electrical power source
EP0140418B1 (de) Aktive Doppelweg-Gleichrichterschaltung
US5568372A (en) Circuit for detecting negative output rails
RU2077111C1 (ru) Бестрансформаторный источник электропитания
EP0050963A1 (de) Sperrwandler
SU1013926A1 (ru) Стабилизатор напр жени посто нного тока
SU892429A1 (ru) Стабилизатор посто нного напр жени
SU913347A1 (ru) Стабилизатор переменного напряжения 1
SU748373A1 (ru) Компенсационный стабилизатор посто нного напр жени
SU765789A1 (ru) Стабилизатор посто нного напр жени
SU765793A1 (ru) Стабилизатор переменного тока
SU1753460A1 (ru) Линейно-импульсный стабилизатор посто нного напр жени
SU1118982A1 (ru) Ключевой стабилизатор посто нного напр жени на управл емом блокинг-генераторе
SU714589A1 (ru) Стабилизированный преобразователь посто нного напр жени
SU742901A1 (ru) Способ электропитани посто нного напр жени
RU2016412C1 (ru) Стабилизирующий источник электропитания
SU608138A1 (ru) Стабилизатор переменного тока

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE FR GB IT NL SE

17P Request for examination filed

Effective date: 19841105

17Q First examination report despatched

Effective date: 19860922

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE FR GB IT NL SE

ITF It: translation for a ep patent filed
ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19870930

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19880922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19880923

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19880930

BERE Be: lapsed

Owner name: JOHNSON SERVICE CY

Effective date: 19880930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19890401

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19890531

GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 82305003.4

Effective date: 19890712