KR960013136A - Electronic ballast circuit for neon lamp - Google Patents

Electronic ballast circuit for neon lamp Download PDF

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Publication number
KR960013136A
KR960013136A KR1019940024329A KR19940024329A KR960013136A KR 960013136 A KR960013136 A KR 960013136A KR 1019940024329 A KR1019940024329 A KR 1019940024329A KR 19940024329 A KR19940024329 A KR 19940024329A KR 960013136 A KR960013136 A KR 960013136A
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KR
South Korea
Prior art keywords
coil
high voltage
voltage transformer
pulse width
power supply
Prior art date
Application number
KR1019940024329A
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Korean (ko)
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KR0139757B1 (en
Inventor
강복연
Original Assignee
이종수
엘지산전 주식회사
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Priority to KR1019940024329A priority Critical patent/KR0139757B1/en
Publication of KR960013136A publication Critical patent/KR960013136A/en
Application granted granted Critical
Publication of KR0139757B1 publication Critical patent/KR0139757B1/en

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Classifications

    • 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
    • H05B41/288—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 and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

본 발명은 네온 램프에 적용되는 전자식 안정기회로에 관한 것으로, 일반적인 안정기 회로에 있어서는 스위칭 트랜지스터가 교번되게 턴온,오프하는 과정에서 필연적으로 스위칭 손실이 발생되어 효율이 저하되고, 그 손실에 의해 발생되는 열에 의해 안정기 회로가 파손되는 것을 방지하기 위하여 별도의 방열판을 설치해야 되는 결함이 있었는 바, 본 발명은 이를 해결하기 위하여 한 주기(t1) 동안에는 평활회로부(11)에서 출력되는 직류전원이 코일(L12), 고전압트랜스(T12)의 1차코일을 통해 콘덴서(C19)에 충전되게 하고, 다음 주기(t2)에서는 상기 콘덴서(C19)에 충전된 전압이 상기 충전될때의 반대방향으로 즉, 고전압트랜스(T12)의 1차코일,코일(L12),모스트랜지스터(Q12)를 통해 출력되도록 함으로써 모스트랜지스터(Q11),(Q12)의 스위칭 손실을 줄일 수 있도록 하였다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic ballast circuit applied to neon lamps. In general ballast circuits, switching losses are inevitably generated in the course of alternately turning on and off switching transistors, and thus efficiency is lowered. In order to prevent the ballast circuit from being damaged by a separate heat sink, the present invention has a defect. In order to solve the problem, the DC power output from the smoothing circuit unit 11 during one period t1 is coil L12. The capacitor C19 is charged through the primary coil of the high voltage transformer T12, and in the next period t2, the voltage charged in the capacitor C19 is opposite to that of the charge, that is, the high voltage transformer T12. It is possible to reduce the switching losses of the MOS transistors Q11 and Q12 by outputting them through the primary coil, coil L12, and MOS transistor Q12. It was.

Description

네온램프용 전자식 안정기회로Electronic ballast circuit for neon lamp

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명의 네온램프용 전자식 안정기회로도.2 is an electronic ballast circuit diagram for the neon lamp of the present invention.

제3도는 (a) 내지 (d)는 제2도 각부의 파형도로서,3 is a waveform diagram of each part of FIG.

(a)는 모스트랜지스터(Q11),(Q12)의 구동주기를 보인 파형도.(a) is a waveform diagram showing the driving period of the MOS transistors Q11 and Q12.

(b)는 모스트랜지스터(Q11),(Q12)의 드레인전류 파형도.(b) is a drain current waveform diagram of the MOS transistors Q11 and Q12.

(c)는 콘덴서(C19)의 전압파형도.(c) is a voltage waveform diagram of a capacitor C19.

(d)는 램프의 전류 파형도.(d) is a current waveform diagram of the lamp.

Claims (2)

회로 보호부(10)를 통해 입력되는 교류전원을 전파정류 및 평활하여 직류전압으로 출력하는 평활회로부(11)와, 상기 회로 보호부(10)를 통해 입력되는 교류전원을 전파정류 및 평활하여 펄스폭변조전원 공급부(12)의 구동전원(Vcc)으로 출력하는 펄스폭변조전원 공급부(12)와, 상기 펄스폭변조전원 공급부(12)로 부터 구동전원을 공급받아 소정 주기의 게이트 구동신호를 출력하는 펄스폭변조부(13)와, 상기 펄스폭변조부(13)의 제어를 받아 스위칭 구동되면서 한 주기에서는 상기 평활회로부(11)의 출력전류를 LC공진부(15)측으로 출력하고, 다음 주기에서는 그 LC공진부(15)에 충전된 전원의 방전 루프를 제공하는 인버터부(14)와, 한 주기에서는 상기 인버터부(14)로 부터 공급되는 전원을 코일 및 고전압트랜스(T12)의 1차측 코일을 통해 콘덴서에 충전하고, 다음 주기에서는 그 충전된 전원을 그 코일 및 고전압트랜스(T12)의 1차측 코일을 통해 상기 인버터부(14)측으로 방전시켜 LC공진기능을 수행하는 LC공진부(15)와, 상기 LC공진부(15)의 구동에 의해 상기 고전압트랜스(T12)를 통해 램프축으로 공급되는 전류를 제어하는 램프전류 제어부(16)로 구성한 것을 특징으로 하는 네온램프용 전자식 안정기회로.Smoothing circuit part 11 for full-wave rectifying and smoothing the AC power input through the circuit protection part 10 and outputting the DC voltage, and full-wave rectifying and smoothing the AC power input through the circuit protection part 10 and pulsed. The pulse width modulated power supply 12 outputs to the driving power supply Vcc of the width modulated power supply 12, and the drive power is supplied from the pulse width modulated power supply 12, and outputs a gate drive signal of a predetermined period. The pulse width modulator 13 and the pulse width modulator 13 are controlled by switching the pulse width modulator 13 to output the output current of the smoothing circuit 11 to the LC resonator 15 in one cycle. The inverter section 14 provides a discharge loop of the power charged to the LC resonance section 15, and in one cycle, the power supplied from the inverter section 14 is supplied to the primary side of the coil and the high voltage transformer T12. Charge the capacitor through the coil, and next week The LC resonator 15 performs an LC resonant function by discharging the charged power to the inverter unit 14 through the coil and the primary coil of the high voltage transformer T12, and the LC resonator unit 15. The electronic ballast circuit for neon lamps, characterized in that configured as a lamp current control unit 16 for controlling the current supplied to the lamp shaft through the high voltage transformer (T12) by driving of. 제1항에 있어서, LC공진부(15)는 인버터부(14)의 모스트랜지스터 드레인 접속점을 코일(L12) 및 고전압트랜스(T12)의 1차 코일을 통해 콘덴서(C19)에 접속하고, 상기 인버터부(14)의 일측 전원출력단자를 병렬접속된 클램핑용 다이오드(D23),(D24)를 역방향으로 통해 상기 콘덴서(C19)에 접속함과 아울러 그 접속점을 클램핑용 다이오드(D25),(D26)의 캐소우드에 공통 접속하여 구성한 것을 특징으로 하는 네온램프용 전자식 안정기회로.The LC resonator unit 15 connects the MOS transistor drain connection point of the inverter unit 14 to the capacitor C19 through the primary coil of the coil L12 and the high voltage transformer T12. One side of the power supply output terminal 14 is connected to the capacitor C19 through the clamping diodes D23 and D24 connected in parallel in the reverse direction, and the connection point is connected to the clamping diodes D25 and D26. An electronic ballast circuit for neon lamps comprising a common connection to a cathode of the lamp. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940024329A 1994-09-27 1994-09-27 Electronic ballast circuit for neon lamp KR0139757B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940024329A KR0139757B1 (en) 1994-09-27 1994-09-27 Electronic ballast circuit for neon lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940024329A KR0139757B1 (en) 1994-09-27 1994-09-27 Electronic ballast circuit for neon lamp

Publications (2)

Publication Number Publication Date
KR960013136A true KR960013136A (en) 1996-04-20
KR0139757B1 KR0139757B1 (en) 1998-08-17

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KR1019940024329A KR0139757B1 (en) 1994-09-27 1994-09-27 Electronic ballast circuit for neon lamp

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100625176B1 (en) * 2004-07-05 2006-09-20 제너럴테크널리지(주) Electornic Ballast

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100625176B1 (en) * 2004-07-05 2006-09-20 제너럴테크널리지(주) Electornic Ballast

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Publication number Publication date
KR0139757B1 (en) 1998-08-17

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