JPH09171897A - Discharge lamp lighting device with delayed extinguishing function - Google Patents

Discharge lamp lighting device with delayed extinguishing function

Info

Publication number
JPH09171897A
JPH09171897A JP7354551A JP35455195A JPH09171897A JP H09171897 A JPH09171897 A JP H09171897A JP 7354551 A JP7354551 A JP 7354551A JP 35455195 A JP35455195 A JP 35455195A JP H09171897 A JPH09171897 A JP H09171897A
Authority
JP
Japan
Prior art keywords
power source
discharge lamp
high frequency
power supply
lighting device
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.)
Pending
Application number
JP7354551A
Other languages
Japanese (ja)
Inventor
Takashi Furuta
隆 古田
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.)
Hitachi Lighting Ltd
Original Assignee
Hitachi Lighting Ltd
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 Hitachi Lighting Ltd filed Critical Hitachi Lighting Ltd
Priority to JP7354551A priority Critical patent/JPH09171897A/en
Publication of JPH09171897A publication Critical patent/JPH09171897A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized and inexpensive device having advantages such that a part for making a standard frequency such as oscillator is not required, a frequency correction as in a commercial power source synchronous type timer is not required. SOLUTION: This device a DC power source 2 in which an AC power source 1 is rectified and smoothed, a high frequency power source 3 in which the DC power source 2 is converted into an AC power source of high frequency, and a discharge lamp 4 lighted by the high frequency power source 3. It also has a detecting circuit 5 for detecting the oscillating frequency of the high frequency power source 3, and a stopping circuit 7 which counts the signal of the detecting circuit 5 and operates after counting a fixed number to extinguish the discharge lamp 4.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は放電灯を一定時間後
に消灯させる機能を付加した遅消灯機能付放電灯点灯装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp lighting device with a delayed light-off function, which has a function of turning off the discharge lamp after a certain period of time.

【０００２】[0002]

【従来の技術】従来のこの種装置は図２の様に、交流電
源１を整流・平滑した直流電源２を備え、直流電源２を
高周波に変換して放電灯４を点灯させる高周波電源３を
備える。また、固定周波数を持った発振子８の周波数を
カウントするカウンター６と、このカウンター６の信号
を受けて、高周波電源３の動作を停止させ消灯させる停
止回路７を備える。図３の従来例は図２のカウンター６
に代えて、交流電源１の周波数をカウントするカウンタ
ー９を採用したものである。2. Description of the Related Art As shown in FIG. 2, a conventional device of this type is provided with a direct current power source 2 which rectifies and smoothes an alternating current power source 1, and which converts a direct current power source 2 into a high frequency power to turn on a discharge lamp 4. Prepare Further, the counter 6 for counting the frequency of the oscillator 8 having a fixed frequency and the stop circuit 7 for receiving the signal of the counter 6 and stopping the operation of the high frequency power supply 3 to turn off the light are provided. The conventional example of FIG. 3 is the counter 6 of FIG.
Instead of this, a counter 9 for counting the frequency of the AC power supply 1 is adopted.

【０００３】[0003]

【発明が解決しようとする課題】図２の従来技術は固定
周波数を持った発振子８が必要となり、部品点数が多
い。また、図３は電源周波数における５０Ｈｚ・６０Ｈ
ｚの違いにより、タイマー９に外の切替スイッチ等が必
要となり部品点数が多くなる。The prior art of FIG. 2 requires an oscillator 8 having a fixed frequency, and has a large number of parts. In addition, Figure 3 shows 50Hz and 60H at the power supply frequency.
Due to the difference in z, an external changeover switch or the like is required for the timer 9 and the number of parts increases.

【０００４】[0004]

【課題を解決するための手段】上記目的を達成するため
に、高周波電源の発振周波数を検知する検知回路と、そ
の信号をカウントするカウンターと、そのカウンターの
信号により、例えば高周波電源の動作を停止させる停止
回路を設ける。In order to achieve the above object, a detection circuit for detecting the oscillation frequency of a high frequency power supply, a counter for counting the signal, and a signal of the counter, for example, stop the operation of the high frequency power supply. A stop circuit is provided.

【０００５】例示的に補足する。高周波電源３は通常５
０ＫＨｚ程度の高周波で発振し、放電灯を点灯してい
る。この５０ＫＨｚの周波数のアナログ信号を検知し、
ディジタル信号に変換する検知回路と、ディジタル信号
をカウントするカウンターを設け、交流電源が投入され
てから一定時間に、カウンターが動作する。そして、カ
ウンターは高周波電源の動作を停止させる停止回路に信
号を送る。これにより停止回路は例えば高周波電源の発
振回路用電源を遮断する等の手段により動作を停止させ
る。A supplementary example will be given. High frequency power source 3 is usually 5
It oscillates at a high frequency of about 0 KHz and lights the discharge lamp. This analog signal with a frequency of 50 KHz is detected,
A detection circuit for converting into a digital signal and a counter for counting the digital signal are provided, and the counter operates within a fixed time after the AC power is turned on. The counter then sends a signal to a stop circuit that stops the operation of the high frequency power supply. As a result, the stop circuit stops its operation by, for example, cutting off the power supply for the oscillation circuit of the high frequency power supply.

【０００６】[0006]

【発明の実施の態様】本発明の実施態様を図１によって
説明する。交流電源１を整流・平滑する直流電源２を備
える。直流電源１を高周波に変換する高周波電源３を備
える。高周波電源３で放電灯４を点灯させる。高周波電
源３の発振周波数を検知する検知回路５を備える。検知
回路５の信号をカウントするカウンター６を備える。カ
ウンター６の信号によって高周波電源３の動作を停止さ
せる停止回路７を備える。図１装置の動作について説明
する。交流電源１を投入すると高周波電源３が動作し、
放電灯４は点灯する。そして、高周波電源３の発振周波
数を例えばスイッチング素子の両端に発生する電圧又は
放電灯４に流れる電流等を検知し、このアナログ信号を
ディジタル信号に変換する検知回路５を設ける。このデ
ィジタル信号をカウントしてカウント数がある一定値に
なった所で停止回路７に信号を送るカウンター６を設け
る。このカウンター６からの信号を受けると、停止回路
７は高周波電源３の例えばスイッチング素子のドライブ
回路を遮断する等の方法により高周波電源３の動作を停
止させる。なお、カウンター６は直流電源２の電源立ち
上がりにより、リセットされる。本実施態様によれば、
前記従来の内部発振子８の様な部品を必要とせず、また
商用電源同期型のタイマーの様に電源周波数の違いを補
正する切替スイッチ等も必要としないため、小型・安価
となる。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIG. A DC power supply 2 for rectifying and smoothing the AC power supply 1 is provided. A high frequency power source 3 for converting the DC power source 1 into a high frequency is provided. The high-frequency power supply 3 turns on the discharge lamp 4. A detection circuit 5 for detecting the oscillation frequency of the high frequency power supply 3 is provided. A counter 6 for counting the signals of the detection circuit 5 is provided. A stop circuit 7 that stops the operation of the high frequency power supply 3 in response to a signal from the counter 6 is provided. The operation of the apparatus shown in FIG. 1 will be described. When the AC power supply 1 is turned on, the high frequency power supply 3 operates,
The discharge lamp 4 is turned on. A detection circuit 5 for detecting the oscillation frequency of the high frequency power supply 3 for example, a voltage generated at both ends of the switching element or a current flowing through the discharge lamp 4 and converting the analog signal into a digital signal is provided. A counter 6 is provided which counts this digital signal and sends a signal to the stop circuit 7 when the count reaches a certain value. Upon receiving the signal from the counter 6, the stop circuit 7 stops the operation of the high frequency power supply 3 by a method of cutting off the drive circuit of the switching element of the high frequency power supply 3, for example. The counter 6 is reset when the DC power supply 2 rises. According to this embodiment,
It does not require parts such as the conventional internal oscillator 8 and does not require a changeover switch or the like for correcting the difference in power supply frequency unlike a timer of a commercial power supply synchronous type, so that it is small and inexpensive.

【０００７】[0007]

【発明の効果】本発明は、高周波電源の発振周波数を検
知する方式としたので、発振子等の基準周波数をつくる
部品を必要としない、商用電源同期型タイマーの様な周
波数補正の必要がない、等の利点があり、小型・安価な
装置を提供できる。Since the present invention employs a method of detecting the oscillation frequency of a high frequency power source, there is no need for a component such as an oscillator for producing a reference frequency, and there is no need for frequency correction like a commercial power source synchronous timer. , And the like, and a small-sized and inexpensive device can be provided.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明装置の回路図である。FIG. 1 is a circuit diagram of the device of the present invention.

【図２】従来装置の回路図である。FIG. 2 is a circuit diagram of a conventional device.

【図３】別な従来装置の回路図である。FIG. 3 is a circuit diagram of another conventional device.

【符号の説明】[Explanation of symbols]

１：交流電源、２：直流電源、３：高周波電源、４：放
電灯、５：検知回路、６：カウンター、７：切替回路、
８：発振子、９：タイマー1: AC power supply, 2: DC power supply, 3: high frequency power supply, 4: discharge lamp, 5: detection circuit, 6: counter, 7: switching circuit,
8: oscillator, 9: timer

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】交流電源（１）を平滑・整流した直流電源
（２）と、前記直流電源（２）を高周波の交流電源に変
換した高周波電源（３）と、前記この高周波電源（３）
により点灯する放電灯（４）とを備えた放電灯点灯装置
において、 前記高周波電源（３）の発振周波数を検知する検知回路
（５）と、この検知回路（５）の信号をカウントして一
定数カウント後に作動して放電灯（４）を消灯させるす
る停止回路（７）を備えたことを特徴とする遅消灯機能
付放電灯点灯装置。1. A direct current power source (2) obtained by smoothing and rectifying an alternating current power source (1), a high frequency power source (3) obtained by converting the direct current power source (2) into a high frequency alternating current power source, and the high frequency power source (3).
In a discharge lamp lighting device provided with a discharge lamp (4) that is lit by means of a detection circuit (5) for detecting the oscillation frequency of the high-frequency power supply (3) and the signal of this detection circuit (5) is counted and fixed. A discharge lamp lighting device with a slow-light-off function, comprising a stop circuit (7) which operates after a few counts to turn off the discharge lamp (4).
JP7354551A 1995-12-20 1995-12-20 Discharge lamp lighting device with delayed extinguishing function Pending JPH09171897A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7354551A JPH09171897A (en) 1995-12-20 1995-12-20 Discharge lamp lighting device with delayed extinguishing function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7354551A JPH09171897A (en) 1995-12-20 1995-12-20 Discharge lamp lighting device with delayed extinguishing function

Publications (1)

Publication Number Publication Date
JPH09171897A true JPH09171897A (en) 1997-06-30

Family

ID=18438318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7354551A Pending JPH09171897A (en) 1995-12-20 1995-12-20 Discharge lamp lighting device with delayed extinguishing function

Country Status (1)

Country Link
JP (1) JPH09171897A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009238755A (en) * 2009-06-09 2009-10-15 Avix Inc Led lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009238755A (en) * 2009-06-09 2009-10-15 Avix Inc Led lamp

Similar Documents

Publication Publication Date Title
CA1089923A (en) Energy-conserving illumination system
CA2192506A1 (en) Method and circuit arrangement for operating a discharge lamp
WO1999014991A3 (en) A ballast for a high intensity discharge lamp
ES8101832A1 (en) Lighting unit and circuit
JPH02501966A (en) Circuit device for lamp brightness control
JPH09171897A (en) Discharge lamp lighting device with delayed extinguishing function
ES2170867T3 (en) CIRCUIT PROVISION.
WO2001060130A1 (en) Switched dimming ballast
JPH06111978A (en) Electric discharge lamp lighting device
JP2005135619A (en) Electrode-less discharge lamp lighting device and lighting system
JPH0722878Y2 (en) Lighting equipment
JPS6020320Y2 (en) discharge lamp lighting device
JPS6115598Y2 (en)
JPH06283287A (en) Discharge lamp lighting device
JPH0139437Y2 (en)
JPH0676974A (en) Electrodeless discharge lamp lighting device
JPH03233894A (en) Device for lighting up discharge lamp
JPH10223381A (en) Power supply unit, lighting device and lighting system
JPH01135698U (en)
JPH05184159A (en) Power supply, discharge lamp lighting unit and lighting fixture
JPS63195990A (en) Radio frequency heater
JPH06267677A (en) Lighting device for discharge lamp used for photo analyzer
JPH1049086A (en) Power unit for sign lamp
JPH0485698U (en)
JPH02301997A (en) Electric discharge lamp lighting device

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20051216

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060104

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20060427