DE10002650C2 - Circuit arrangement for reducing the active power in a stabilized DC power supply by means of a ballast capacitor - Google Patents

Circuit arrangement for reducing the active power in a stabilized DC power supply by means of a ballast capacitor

Info

Publication number
DE10002650C2
DE10002650C2 DE10002650A DE10002650A DE10002650C2 DE 10002650 C2 DE10002650 C2 DE 10002650C2 DE 10002650 A DE10002650 A DE 10002650A DE 10002650 A DE10002650 A DE 10002650A DE 10002650 C2 DE10002650 C2 DE 10002650C2
Authority
DE
Germany
Prior art keywords
capacitor
voltage
power supply
stabilized
positive
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.)
Expired - Lifetime
Application number
DE10002650A
Other languages
German (de)
Other versions
DE10002650A1 (en
Inventor
Niels Dernedde
Thomas Lorenz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE10002650A priority Critical patent/DE10002650C2/en
Publication of DE10002650A1 publication Critical patent/DE10002650A1/en
Application granted granted Critical
Publication of DE10002650C2 publication Critical patent/DE10002650C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/05—Capacitor coupled rectifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Control Of Electrical Variables (AREA)

Description

Stand der Technik und ProblemstellungState of the art and problem definition

In der herkömmlichen Schaltungstechnik wird für eine Gleichspannungsversorgung aus Platz- und Kostengründen häufig ein komplexer Vorwiderstand (Hochspan­ nungskondensator) verwendet, der Speicherkapazitäten auf die benötigte Nieder­ spannung auflädt. Die Spannung der Speicherkapazitäten wird bei einer stabilisierten Gleichspannungsversorgung begrenzt, da sonst die Niederspannung auf Potential der Versorgungsspannung hoch läuft.In the conventional circuit technology is for a DC power supply due to space and cost reasons, often a complex series resistor (Hochspan Capacitor), the storage capacity to the required low charge voltage. The voltage of the storage capacities is stabilized at a DC voltage supply limited, otherwise the low voltage to potential the supply voltage is running high.

Diese Begrenzung wird i. d. R. durch Zenerdioden realisiert, welche den von der nachgeordneten Schaltung nicht benötigen Strom ableiten. Dabei entsteht insbeson­ dere bei größeren Niederspannungen (größer als ca. 10 V) und bei nachgeordneten Schaltungen mit größeren Lastwechseln erhebliche Wirkleistung in der Zenerdiode. Das ist ein erheblicher Nachteil von Schaltungen gemäß dem Stand der Technik, denn damit wird der Wirkungsgrad der Spannungsversorgung gesenkt und die ent­ stehende Wärme hat in den meisten Anwendungen negativen Einfluss auf die umge­ bende Schaltung.This limitation is i. d. R. realized by Zener diodes, which the of the downstream circuit does not need to derive power. This creates in particular dere for larger low voltages (greater than about 10 V) and downstream Circuits with larger load changes considerable active power in the zener diode. This is a significant disadvantage of prior art circuits, because with it the efficiency of the power supply is lowered and the ent standing heat has a negative impact on the environment in most applications bende circuit.

Ein Kondensatornetzteil, das diesem Nachteil Rechnung trägt, ist bereits aus der Wo 99/30408 bekannt. So wird dort die Verlustleistung des Netzteils reduziert, indem der an der Phase eines Wechselspannungsnetzes liegende Kondensator gegen den Nullleiter durch einen Thyristor kurzgeschlossen wird, wenn die Spannung am Aus­ gang des Netzteiles einen vorgegebenen Referenzwert überschreitet.A capacitor power supply, which takes this disadvantage into account, is already out of the Where known 99/30408. So there is the power loss of the power supply reduced by the lying at the phase of an alternating voltage network capacitor against the Neutral is shorted by a thyristor when the voltage is at the off transition of the power supply exceeds a predetermined reference value.

Ausgehend von dieser bekannten Lösung liegt der Anmeldung die Aufgabe zugrunde, mit möglichst geringem Schaltungsaufwand ein derartiges Kondensator­ netzteil so weiterzubilden, dass sowohl eine negative, wie auch eine positive Aus­ gangsspannung mit unabhängig vorgebbaren Pegeln bereitgestellt wird.Based on this known solution of the application is the task based, with the least possible circuit complexity such a capacitor so that both a negative, as well as a positive out output voltage is provided with independently definable levels.

Beschreibung der ErfindungDescription of the invention

Die Schaltungsanordung dient dazu, die Wirkleistung herkömmlicher, stabilisierter Gleichspannungsversorgungen zu reduzieren. Erreicht wird dies dadurch, dass der Ableitstrom, der über die Zenerdiode aus der Speicherkapazität abgeleitet wird, z. B. über einen Widerstand gemessen wird und bei Überschreiten einer wohldefinierten Schwelle der Vorschaltkondensator mittels eines Triacs gegen Masse kurzgeschlossen wird. Ein kurzgeschlossener Kondensator erzeugt bekanntlich nur Blindleistung (bis auf minimale Dielektrizitätsverluste) uns somit keine Wärme.The circuit arrangement serves the active power of conventional, stabilized Reduce DC supplies. This is achieved by the fact that the Leakage, which is derived via the Zener diode from the storage capacity, z. B. is measured via a resistor and when a well-defined Threshold of the ballast capacitor by means of a triac to ground shorted. A short-circuited capacitor is known to produce only Reactive power (except for minimal dielectric losses) thus no heat.

Der Nutzen der Erfindung liegt darin: Bei größeren Niederspannungen und bei nachgeordneten Schaltungen mit größeren Lastwechseln entsteht bekanntlich erhebliche Wirkleistung in der Zenerdiode mit den resultierenden Nachteilen.The benefit of the invention lies in: For larger low voltages and at Downstream circuits with larger load changes are known to occur considerable active power in the Zener diode with the resulting disadvantages.

Die Zeichnung 1 zeigt eine mögliche Ausführungsform mit Triac zur Erzeugung einer positiven und negativen Spannung. The drawing 1 shows a possible embodiment with triac to produce a positive and negative voltage.  

Alternativ kann der Triac selbstverständlich auch aus diskreten Bauteilen (Transistoren mit Beschaltung) realisiert werden.Of course, the triac can of course also be made of discrete components (Transistors with wiring) can be realized.

Erläuterungen zu Zeichnung 1 SpannungsbegrenzungExplanations to drawing 1 Voltage limitation

V2 = Netzspannungsquelle
C2 = Netzspannungs- bzw. Vorschaltkondensator
D5 = Gleichrichterdiode
D9 und D10 = Zenerdiode
U1 = positive Ausgangsgleichspannung
C5 = Speicherkapazität für die positive Spannung
C6 = Speicherkapazität für die negative Spannung
D6 = Gleichrichterdiode
D8 = Zenerdiode
U2 = negative Ausgangsspannung
R2 = Entstör-Element, vorzugsweise Widerstand, ggf. 0 Ohm
R5 = Strommess-Element, vorzugsweise Widerstand
D2 = TriacV2 = mains voltage source
C2 = mains voltage or ballast capacitor
D5 = rectifier diode
D9 and D10 = zener diode
U1 = positive DC output voltage
C5 = storage capacity for the positive voltage
C6 = storage capacity for the negative voltage
D6 = rectifier diode
D8 = Zener diode
U2 = negative output voltage
R2 = suppressor element, preferably resistor, possibly 0 ohms
R5 = current measuring element, preferably resistance
D2 = triac

Claims (1)

1. Netzteilschaltung zur Bereitstellung einer positiven und negativen Versorgungsspan­ nung mit einem in Reihe zum Wechselspannungseingang liegenden Vorschaltkon­ densator (C2), dessen ausgangsseitig anstehende Wechselspannung abhängig von der Polarität einem von zwei Einweggleichrichtern (D5, D6) zum Laden je eines Speicherkondensators (C5, C6) zugeführt wird, wobei die ausgangsseitig am Vorschaltkondensator (C2) anstehende Wechselspannung getrennt für die positive und negative Halbwelle mit jeweils einem konstant vorgege­ benen Spannungsschwellwert (D9, D10, R5) verglichen wird und der Kondensator (C2) ausgangsseitig über einen Triac (D2) gegen Masse kurzgeschlossen wird, wenn bei positiver Halbwelle der Spannungsschwellwert überschritten und bei negativer Halbwelle unterschritten wird.1. Power supply circuit for providing a positive and negative supply chip with a ballast connected in series with the AC input capacitor (C2) whose output alternating voltage depends on the polarity of one of two half-wave rectifiers (D5, D6) for charging one each Storage capacitor (C5, C6) is supplied, wherein the output side of the ballast capacitor (C2) pending AC voltage separated for the positive and negative half wave, each with a constant vorge voltage threshold (D9, D10, R5) is compared and the capacitor (C2) output side is shorted to ground via a triac (D2), if at positive half-wave the voltage threshold is exceeded and at negative Half wave is fallen below.
DE10002650A 2000-01-21 2000-01-21 Circuit arrangement for reducing the active power in a stabilized DC power supply by means of a ballast capacitor Expired - Lifetime DE10002650C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10002650A DE10002650C2 (en) 2000-01-21 2000-01-21 Circuit arrangement for reducing the active power in a stabilized DC power supply by means of a ballast capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10002650A DE10002650C2 (en) 2000-01-21 2000-01-21 Circuit arrangement for reducing the active power in a stabilized DC power supply by means of a ballast capacitor

Publications (2)

Publication Number Publication Date
DE10002650A1 DE10002650A1 (en) 2001-08-09
DE10002650C2 true DE10002650C2 (en) 2003-04-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009033385A1 (en) 2009-07-16 2011-02-03 Diehl Ako Stiftung & Co. Kg Power supply circuit arrangement and method for operating a power supply circuit arrangement
DE102016009769A1 (en) 2016-08-02 2018-02-08 Theben Ag circuitry

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040232896A1 (en) * 2003-05-21 2004-11-25 Chin-Wen Chou Power supply apparatus providing medium voltage direct current
JP4543718B2 (en) * 2003-11-27 2010-09-15 ダイキン工業株式会社 Power converter
US8537569B2 (en) * 2010-03-26 2013-09-17 Cree, Inc. Stored energy dissipating circuits and methods for switched mode power supplies
AU2012371618B2 (en) 2012-03-02 2016-11-17 Schneider Electric It Corporation Method for providing low voltage DC power from AC mains power
FR2991834B1 (en) * 2012-06-08 2017-04-07 Alexandre Crisnaire DEVICE FOR SUPPLYING AN ELECTRICAL APPARATUS

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309529A1 (en) * 1983-03-17 1984-09-20 Diehl GmbH & Co, 8500 Nürnberg TRANSFORMER POWER SUPPLY
EP0229950A1 (en) * 1985-12-20 1987-07-29 Braun Aktiengesellschaft Transformerless supply circuit
DD257339A1 (en) * 1985-02-08 1988-06-08 Ingenieurhochschule TRANSFORMERLESS SMALL POWER SUPPLY WITH HIGH EFFICIENCY
EP0324904A1 (en) * 1988-01-20 1989-07-26 Eaton GmbH Power supply producing a regulated DC voltage
WO1999030408A1 (en) * 1997-12-06 1999-06-17 Leopold Kostal Gmbh & Co. Kg Capacitor supply unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309529A1 (en) * 1983-03-17 1984-09-20 Diehl GmbH & Co, 8500 Nürnberg TRANSFORMER POWER SUPPLY
DD257339A1 (en) * 1985-02-08 1988-06-08 Ingenieurhochschule TRANSFORMERLESS SMALL POWER SUPPLY WITH HIGH EFFICIENCY
EP0229950A1 (en) * 1985-12-20 1987-07-29 Braun Aktiengesellschaft Transformerless supply circuit
EP0324904A1 (en) * 1988-01-20 1989-07-26 Eaton GmbH Power supply producing a regulated DC voltage
WO1999030408A1 (en) * 1997-12-06 1999-06-17 Leopold Kostal Gmbh & Co. Kg Capacitor supply unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009033385A1 (en) 2009-07-16 2011-02-03 Diehl Ako Stiftung & Co. Kg Power supply circuit arrangement and method for operating a power supply circuit arrangement
EP2284638A2 (en) 2009-07-16 2011-02-16 Diehl AKO Stiftung & Co. KG Power supply switching assembly and method for operating same
EP2284638A3 (en) * 2009-07-16 2012-10-10 Diehl AKO Stiftung & Co. KG Power supply switching assembly and method for operating same
DE102009033385B4 (en) 2009-07-16 2018-09-20 Diehl Ako Stiftung & Co. Kg Power supply circuit arrangement and method for operating a power supply circuit arrangement
DE102016009769A1 (en) 2016-08-02 2018-02-08 Theben Ag circuitry

Also Published As

Publication number Publication date
DE10002650A1 (en) 2001-08-09

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