EP1675441A1 - Electronic stabilizer for lamps - Google Patents

Electronic stabilizer for lamps Download PDF

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Publication number
EP1675441A1
EP1675441A1 EP04030653A EP04030653A EP1675441A1 EP 1675441 A1 EP1675441 A1 EP 1675441A1 EP 04030653 A EP04030653 A EP 04030653A EP 04030653 A EP04030653 A EP 04030653A EP 1675441 A1 EP1675441 A1 EP 1675441A1
Authority
EP
European Patent Office
Prior art keywords
high frequency
lamps
present
output transformer
capacitors
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.)
Ceased
Application number
EP04030653A
Other languages
German (de)
French (fr)
Inventor
Ching-Chung Lee
Original Assignee
Chou Han-Chi
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 Chou Han-Chi filed Critical Chou Han-Chi
Priority to EP04030653A priority Critical patent/EP1675441A1/en
Publication of EP1675441A1 publication Critical patent/EP1675441A1/en
Priority to US12/728,551 priority patent/US20100178265A1/en
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2825—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a bridge converter in the final stage

Definitions

  • the present invention relates to an electronic stabilizer comprising a high frequency output transformer, a frequency modulation/power amplifying circuit, a plurality of high frequency ballasts, and a plurality of capacitors.
  • the electronic stabilizer is adapted to a circuit of discharge lamps of various forms such that the temperature build-up of the circuit is minimized, and that the lighting of the discharge lamps is stabilized.
  • an electronic stabilizer of the prior art comprises a frequency modulation circuit which is serially connected with an electro induction L2 and a constant current lighting.
  • the lamp is regarded as one of the component parts of the circuit. In the event that the lamp is changed in one way or another, the circuit is bound to react poorly.
  • the circuit voltage being limited by the power source voltage, the circuit is limited in design in that it allows only a limited number of lamps to be connected thereto.
  • the primary objective of the present invention is to provide an electronic stabilizer which is free of the deficiencies of the prior art electronic stabilizer described above.
  • the electronic stabilizer comprising a high frequency output transformer, a frequency modulation/power amplifying circuit, a plurality of high frequency ballasts, and a plurality of capacitors.
  • the primary side of the high frequency output transformer is connected with the frequency modulation/power amplifying circuit, whereas the secondary side of the high frequency output transformer is connected with high frequency ballasts and the capacitors (IC and MOSFET).
  • the high frequency output transformer is a main load, with its oscillation frequency being determined by IC.
  • the present invention is characterized by the high frequency output transformer which is electrically matched with the lamps to be lighted.
  • the load matching of the high frequency output transformer is associated with the characteristics of the lamp voltage and the lamp current of the load lamps.
  • the present invention is different from the prior art electronic stabilizer in the output power lamp load, which is a high frequency transformer, and in the absence of direct current (DC).
  • the lamps and the high frequency ballasts may be either coupled or separated.
  • This high frequency output transformer of the present invention is merely a voltage transformer, by means of which a desired output voltage can be adjusted.
  • the present invention is therefore adapted to the lighting of a plurality of lamps of the same kind or different kinds by virtue of the high frequency output transformer.
  • an electronic stabilizer of the present invention comprises a high frequency output transformer 2, a frequency modulation/power amplifying circuit 1, and a plurality of high frequency ballasts 3 and capacitors 4.
  • the high frequency output transformer 2 is connected in a primary side with the frequency modulation/power amplifying circuit 1, and in a secondary side with the high frequency ballasts 3 and capacitors 4 (IC and MOSFET).
  • the high frequency output transformer 2 is a main load, with its oscillation frequency being determined by IC.
  • the only consideration of the high frequency output transformer 2 is the electricity matching of the lamps to be lighted.
  • the load matching is done with characteristics of voltage and current of the load lamps.
  • the present invention is different from the prior art electronic stabilizer in the output power lamp load, which is a high frequency transformer 2, and in the absence of direct current (DC).
  • the lamps and the high frequency ballasts 3 of the present invention may be either coupled or separated.
  • the high frequency output transformer 2 of the present invention is merely a voltage transformer, by which a desired output voltage is adjusted.
  • the present invention is thereof suitable for use in lighting up a plurality of lamps of the same kind or different kinds by virtue of the high frequency output transformer 2.
  • the high frequency ballasts L1 and the capacitors Cl are serially connected to effect a lighting voltage to light up the lamps, with the internal impedance of the capacitors C1 being much greater than that of the lamps.
  • the current of the lamps is controlled and stabilized by the high frequency ballasts L1.
  • the high frequency voltage and current can be adjusted at will to match the load of the lamps.
  • the circuit of the present invention is designed to work with a fixed frequency and a fixed voltage.
  • the output transistors of the power amplifying circuit of the present invention are serially connected.
  • the output transistors of the power amplifying circuit of the present invention are either MOSF transistors or bipolar transistors. Without making use of the transistors resistant to high voltage, the present invention can be easily designed to match freely a plurality of secondary discharge light-emitting bodies of various powers and types.
  • the high frequency ballasts and the capacitors can be serially connected, as shown in FIG. 2.
  • the power amplifying circuit of the present invention comprises a plurality of bipolar transistors, and two Schottky diodes D1 and D2. As a result, the bipolar transistors are prevented from being heated.
  • the present invention is further different from the prior art in design in that the latter makes use of a constant voltage lighting circuit, which calls for a voltage increment three times greater than the lamp voltage.
  • the output transformer remains in a high potential in the wake of the lighting of the lamp. As a result, the output transformer cannot be easily dealt with.
  • the capacitors provide the lamps with a sufficient electric current by which the filament of the lamps becomes incandescent.
  • the lamps are lighted up by a high frequency voltage which is brought about at the time when the high frequency ballasts 3 and the capacitors 4 are engaged in a harmonic oscillation. Upon being lighted up, the lamps have a low internal impedance, thereby allowing the passage of the electric current.
  • the high frequency ballast 3 serves as a high frequency current regulator enabling the lamp to be lighted normally. With cooperation of the high frequency output transformer 2, the high frequency ballasts 3, and the capacitors 4, any secondary discharge lamps, such as HID, HQI internal lamp, fluorescent lamp, etc., can be matched.
  • the power amplifying circuit of the primary side of the present invention is not affected in any way in a situation in which a plurality of lamps of various voltages and currents are lighted.
  • the output transformer of the present invention can be adjusted at will to output a desired voltage.
  • the prior art electronic stabilizer is incapable of attaining such a deed.

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  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

An electronic stabilizer is disclosed. The electronic stabilizer comprises a high frequency output transformer (2), a frequency modulation/power amplifying circuit (1), and a plurality of high frequency ballasts (3) and capacitors (4). The primary side of the high frequency output transformer (2) is connected to the frequency modulation/power amplifying circuit (1) and the secondary side of the high frequency output transformer (2) is connected to high frequency ballasts (3) and capacitors (4) such that high frequency ballasts (3) and capacitors (4)can be matched according to the voltage and current of a plurality of lamps without affecting the frequency modulation/power amplifying circuit (1). Thus, the high frequency output transformer (2) can be adapted for outputting desired voltage.

Description

    BACKGROUND OF THE INVENTION 1. Field of the invention
  • The present invention relates to an electronic stabilizer comprising a high frequency output transformer, a frequency modulation/power amplifying circuit, a plurality of high frequency ballasts, and a plurality of capacitors. The electronic stabilizer is adapted to a circuit of discharge lamps of various forms such that the temperature build-up of the circuit is minimized, and that the lighting of the discharge lamps is stabilized.
    • 2. Description of the Related Art
  • As shown in FIG. 5, an electronic stabilizer of the prior art comprises a frequency modulation circuit which is serially connected with an electro induction L2 and a constant current lighting. The lamp is regarded as one of the component parts of the circuit. In the event that the lamp is changed in one way or another, the circuit is bound to react poorly. In light of the circuit voltage being limited by the power source voltage, the circuit is limited in design in that it allows only a limited number of lamps to be connected thereto.
    • SUMMARY OF THE INVENTION
  • The primary objective of the present invention is to provide an electronic stabilizer which is free of the deficiencies of the prior art electronic stabilizer described above.
  • In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by the electronic stabilizer comprising a high frequency output transformer, a frequency modulation/power amplifying circuit, a plurality of high frequency ballasts, and a plurality of capacitors. The primary side of the high frequency output transformer is connected with the frequency modulation/power amplifying circuit, whereas the secondary side of the high frequency output transformer is connected with high frequency ballasts and the capacitors (IC and MOSFET). The high frequency output transformer is a main load, with its oscillation frequency being determined by IC. The present invention is characterized by the high frequency output transformer which is electrically matched with the lamps to be lighted. The load matching of the high frequency output transformer is associated with the characteristics of the lamp voltage and the lamp current of the load lamps. The present invention is different from the prior art electronic stabilizer in the output power lamp load, which is a high frequency transformer, and in the absence of direct current (DC). As a result, the lamps and the high frequency ballasts may be either coupled or separated. This high frequency output transformer of the present invention is merely a voltage transformer, by means of which a desired output voltage can be adjusted. The present invention is therefore adapted to the lighting of a plurality of lamps of the same kind or different kinds by virtue of the high frequency output transformer.
  • The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention in reference to the accompanying drawings.
    • BRIEF DESCRIPTION OF THE DRAWINGS
    • FIG.1
    shows a circuit diagram of the preferred embodiment of the present invention.
    FIG.2
    shows another circuit diagram of the preferred embodiment of the present invention.
    FIG.3
    shows still another circuit diagram of the preferred embodiment of the present invention.
    FIG.4
    shows a block diagram of the preferred embodiment of the present invention.
    FIG.5
    shows a circuit diagram of an electronic stabilizer of the prior art.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • As shown in FIG. 1 and 4, an electronic stabilizer of the present invention comprises a high frequency output transformer 2, a frequency modulation/power amplifying circuit 1, and a plurality of high frequency ballasts 3 and capacitors 4. The high frequency output transformer 2 is connected in a primary side with the frequency modulation/power amplifying circuit 1, and in a secondary side with the high frequency ballasts 3 and capacitors 4 (IC and MOSFET). The high frequency output transformer 2 is a main load, with its oscillation frequency being determined by IC. The only consideration of the high frequency output transformer 2 is the electricity matching of the lamps to be lighted. The load matching is done with characteristics of voltage and current of the load lamps. The present invention is different from the prior art electronic stabilizer in the output power lamp load, which is a high frequency transformer 2, and in the absence of direct current (DC). As a result, the lamps and the high frequency ballasts 3 of the present invention may be either coupled or separated. The high frequency output transformer 2 of the present invention is merely a voltage transformer, by which a desired output voltage is adjusted. The present invention is thereof suitable for use in lighting up a plurality of lamps of the same kind or different kinds by virtue of the high frequency output transformer 2.
  • As shown in FIG. 2, the high frequency ballasts L1 and the capacitors Cl are serially connected to effect a lighting voltage to light up the lamps, with the internal impedance of the capacitors C1 being much greater than that of the lamps. The current of the lamps is controlled and stabilized by the high frequency ballasts L1.
  • With the electronic stabilizer of the present invention, the high frequency voltage and current can be adjusted at will to match the load of the lamps. In addition, the circuit of the present invention is designed to work with a fixed frequency and a fixed voltage. The output transistors of the power amplifying circuit of the present invention are serially connected. The output transistors of the power amplifying circuit of the present invention are either MOSF transistors or bipolar transistors. Without making use of the transistors resistant to high voltage, the present invention can be easily designed to match freely a plurality of secondary discharge light-emitting bodies of various powers and types. Moreover, the high frequency ballasts and the capacitors can be serially connected, as shown in FIG. 2.
  • As shown in FIG. 3, the power amplifying circuit of the present invention comprises a plurality of bipolar transistors, and two Schottky diodes D1 and D2. As a result, the bipolar transistors are prevented from being heated.
  • The present invention is further different from the prior art in design in that the latter makes use of a constant voltage lighting circuit, which calls for a voltage increment three times greater than the lamp voltage. In addition, the output transformer remains in a high potential in the wake of the lighting of the lamp. As a result, the output transformer cannot be easily dealt with.
  • In light of the high frequency ballasts 3 and the capacitors 4 of the present invention being connected in series, the capacitors provide the lamps with a sufficient electric current by which the filament of the lamps becomes incandescent. The lamps are lighted up by a high frequency voltage which is brought about at the time when the high frequency ballasts 3 and the capacitors 4 are engaged in a harmonic oscillation. Upon being lighted up, the lamps have a low internal impedance, thereby allowing the passage of the electric current. The high frequency ballast 3 serves as a high frequency current regulator enabling the lamp to be lighted normally. With cooperation of the high frequency output transformer 2, the high frequency ballasts 3, and the capacitors 4, any secondary discharge lamps, such as HID, HQI internal lamp, fluorescent lamp, etc., can be matched.
  • The advantages of the present invention over the prior are therefore readily apparent. In the first place, the power amplifying circuit of the primary side of the present invention is not affected in any way in a situation in which a plurality of lamps of various voltages and currents are lighted. The output transformer of the present invention can be adjusted at will to output a desired voltage. The prior art electronic stabilizer is incapable of attaining such a deed.
  • The embodiment of the present invention described above is to be regarded in all respects as being illustrative and nonrestrictive. Accordingly, the present invention may be embodied in other specific forms without deviating form the Spirit thereof. The present invention is therefore to be limited only by the scope of the following claim.

Claims (1)

  1. An electronic stabilizer comprising a high frequency output transformer (2), a frequency modulation/power amplifying circuit (1), and a plurality of high frequency ballasts (3) and capacitors (4); wherein said high frequency output transformer (2) is connected in a primary side with said frequency modulation/power amplifying circuit (1), and in a secondary side with said high frequency ballasts (3) and said capacitors (4) whereby said high frequency ballasts (3) and said capacitors (4) are matched in accordance with voltage and current of a plurality of lamps, without affecting said frequency modulation/power amplifying circuit (1), thereby enabling said high frequency output transformer (2) to adjust to output a desired voltage.
EP04030653A 2004-12-23 2004-12-23 Electronic stabilizer for lamps Ceased EP1675441A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04030653A EP1675441A1 (en) 2004-12-23 2004-12-23 Electronic stabilizer for lamps
US12/728,551 US20100178265A1 (en) 2004-12-23 2010-03-22 Hair conditioning composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04030653A EP1675441A1 (en) 2004-12-23 2004-12-23 Electronic stabilizer for lamps

Publications (1)

Publication Number Publication Date
EP1675441A1 true EP1675441A1 (en) 2006-06-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04030653A Ceased EP1675441A1 (en) 2004-12-23 2004-12-23 Electronic stabilizer for lamps

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EP (1) EP1675441A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598232A (en) * 1983-08-25 1986-07-01 Nilssen Ole K High-frequency lighting system
US4972126A (en) * 1985-05-09 1990-11-20 Nilssen Ole K Ballasting system for fluorescent lamps
US5003227A (en) * 1988-08-15 1991-03-26 Nilssen Ole K Power distribution for lighting systems
US5053681A (en) * 1989-04-17 1991-10-01 Robert G. Lockwood Remote electrical converter
EP1115272A1 (en) * 2000-01-07 2001-07-11 Issei Yoshitake Method and system for lighting discharge lamps

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598232A (en) * 1983-08-25 1986-07-01 Nilssen Ole K High-frequency lighting system
US4972126A (en) * 1985-05-09 1990-11-20 Nilssen Ole K Ballasting system for fluorescent lamps
US5003227A (en) * 1988-08-15 1991-03-26 Nilssen Ole K Power distribution for lighting systems
US5053681A (en) * 1989-04-17 1991-10-01 Robert G. Lockwood Remote electrical converter
EP1115272A1 (en) * 2000-01-07 2001-07-11 Issei Yoshitake Method and system for lighting discharge lamps

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