KR890003258A - Discharge lamp start circuit by switching frequency down - Google Patents

Discharge lamp start circuit by switching frequency down Download PDF

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Publication number
KR890003258A
KR890003258A KR1019870008207A KR870008207A KR890003258A KR 890003258 A KR890003258 A KR 890003258A KR 1019870008207 A KR1019870008207 A KR 1019870008207A KR 870008207 A KR870008207 A KR 870008207A KR 890003258 A KR890003258 A KR 890003258A
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KR
South Korea
Prior art keywords
discharge lamp
filament
switching frequency
frequency
voltage
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Application number
KR1019870008207A
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Korean (ko)
Inventor
권영석
Original Assignee
권영석
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Publication date
Application filed by 권영석 filed Critical 권영석
Priority to KR1019870008207A priority Critical patent/KR890003258A/en
Publication of KR890003258A publication Critical patent/KR890003258A/en

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Abstract

내용 없음No content

Description

스위칭 주파수 down에 의한 방전등 시동회로Discharge lamp start circuit by switching frequency down

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 기본 구성이 되는 RLC공진 회로도, 제2도는 제1도의 동작에 따른 Q와 F의 관계도(a)는 시동1단계로써 C0,L0,C1직렬 공진시의 Q-F관계도, (b)는 시동 2단계로써 점등 주파수를 down시켰을 경우의 C0,C0,C1공진시의 Q-F관계도, (c)는 3단계로써 램프가 아크방전 영역이 되고 C0,L0 공진시의 Q-F관계도, 제3도는 본 발명의 일 실시예를 하프 브릿지로 수성한 경우의 회로도.1 is an RLC resonant circuit diagram of the basic configuration of the present invention, FIG. 2 is a relationship diagram of Q and F according to the operation of FIG. 1 (a) is a QF relationship diagram of C0, L0, and C1 series resonances as a first stage of startup. (b) shows QF relationship when C0, C0, C1 resonates when the lighting frequency is turned down in two stages of start-up, and (c) shows QF relationship when the lamp becomes arc discharge region and C0, L0 resonates in three stages. 3 is a circuit diagram when an embodiment of the present invention is formed by half bridge.

Claims (3)

시동시에 정상방전(正常放電)의 관전압보다 높은 전압이 필요한 방전등을 필라멘트 가열방식으로 시동시키는 타려발진 인버터 회로에 있어서, 스위칭되는 전압에 직렬로 L0,C0램프를 연결하고 램프와병렬로 양필라멘트와는 직렬로 C1을 연결하도록 하여 전원이 투입되면 일정시간 C0,L0,C1의 직렬공진 주파수보다 높은 주파수로 필라멘트를 가열시키고, 그 다음 스위칭 주파수를 낮추어 Q가 높아짐으로써 램프 양단에 시동에 필요한 높은 전압이 발생도어 램프가 시동되도록 하는 것을 특징으로 하는 방전등 점등장치.In a start-up inverter circuit that starts a discharge lamp that requires a voltage higher than the normal discharge tube voltage at the start-up by a filament heating method, the L0 and C0 lamps are connected in series with the switching voltage, and the filament is in parallel with the lamp. Connect C1 in series so that when the power is turned on, the filament is heated to a frequency higher than the series resonance frequency of C0, L0, C1 for a certain time, and then the switching frequency is lowered so that Q is higher. Discharge lamp lighting device, characterized in that the voltage generated door lamp to be started. 제1항에 있어서, 일정시간이 지난후의 스위칭 주파수가 C0,L0,C1의 공진 주파수 보다 높은 주파수로 down되도록 설정하는 것을 특징으로 하는 방전등 점등 장치.The discharge lamp lighting apparatus according to claim 1, wherein the switching frequency after a predetermined time is set to be lowered to a frequency higher than the resonant frequencies of C0, L0, and C1. 제1항에 있어서 방전등은 필라멘트 예열-고압발생(시동)-정상방전의 3단계가 되어 점등되는 것을 특징으로 하는 방전등 점등장치.The discharge lamp lighting apparatus according to claim 1, wherein the discharge lamp is turned on in three stages of filament preheating, high pressure generation (starting) and normal discharge. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019870008207A 1987-07-29 1987-07-29 Discharge lamp start circuit by switching frequency down KR890003258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870008207A KR890003258A (en) 1987-07-29 1987-07-29 Discharge lamp start circuit by switching frequency down

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870008207A KR890003258A (en) 1987-07-29 1987-07-29 Discharge lamp start circuit by switching frequency down

Publications (1)

Publication Number Publication Date
KR890003258A true KR890003258A (en) 1989-04-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870008207A KR890003258A (en) 1987-07-29 1987-07-29 Discharge lamp start circuit by switching frequency down

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KR (1) KR890003258A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100826323B1 (en) * 2001-01-22 2008-05-02 파텐트-트로이한트-게젤샤프트 퓌어 엘렉트리쉐 글뤼람펜 엠베하 Ballast for gas discharge lamps with shutdown of the filament heating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100826323B1 (en) * 2001-01-22 2008-05-02 파텐트-트로이한트-게젤샤프트 퓌어 엘렉트리쉐 글뤼람펜 엠베하 Ballast for gas discharge lamps with shutdown of the filament heating

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