JPH02113300U - - Google Patents
Info
- Publication number
- JPH02113300U JPH02113300U JP2031889U JP2031889U JPH02113300U JP H02113300 U JPH02113300 U JP H02113300U JP 2031889 U JP2031889 U JP 2031889U JP 2031889 U JP2031889 U JP 2031889U JP H02113300 U JPH02113300 U JP H02113300U
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- photocoupler
- frequency
- drive circuit
- circuit
- 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
Links
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims 2
- 239000004065 semiconductor Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図は従来の点灯装置における基本構成図で
あり、第２図は従来の点灯装置におけるドライブ
回路を示し、第３図は本考案及び従来の点灯装置
におけるインバーター回路を示す。さらに第４図
は本考案の点灯装置のドライブ回路を示し、第５
図は第４図のドライブ回路とフオトカプラーを介
して接続された周波数変換回路を示す。第６図は
本考案の点灯装置の基本構成図を示す。
図中、１０：放電ランプ、１３：出力電圧の極
性が一定である電源、１４：チヨツパー回路、１
６：インバーター回路、６０：ドライブ回路、６
１：周波数変換回路。
FIG. 1 is a basic configuration diagram of a conventional lighting device, FIG. 2 shows a drive circuit in the conventional lighting device, and FIG. 3 shows an inverter circuit in the lighting device of the present invention and the conventional lighting device. Furthermore, FIG. 4 shows the drive circuit of the lighting device of the present invention, and the fifth
The figure shows a frequency conversion circuit connected to the drive circuit of FIG. 4 via a photocoupler. FIG. 6 shows a basic configuration diagram of the lighting device of the present invention. In the figure, 10: discharge lamp, 13: power supply with constant output voltage polarity, 14: chopper circuit, 1
6: Inverter circuit, 60: Drive circuit, 6
1: Frequency conversion circuit.
Claims (1)
プと、前記電源の出力側に接続されて前記放電ラ
ンプへの供給電力を制御するチヨツパー回路と、
このチヨツパー回路と前記放電ランプの間に接続
されて複数の半導体スイツチング素子を有するイ
ンバーター回路と、このインバーター回路を駆動
するドライブ回路と、このドライブ回路とフオト
カプラーを介して接続された周波数変換回路を有
する装置において、 前記ドライブ回路は、高周波で発振する自励型
発振部と、この自励型発振部に接続され前記半導
体スイツチング素子の数に対応して、その内部に
前記フオトカプラーの受光部を有する複数のスイ
ツチング回路部を有し、 前記周波数変換回路は、前記放電ランプの点灯
周波数の周波数発生調整器と、その出力に応じて
導通・非導通状態を決める複数個の前記フオトカ
プラー発光部を有することを特徴とする交流式放
電ランプ点灯装置。[Claims for Utility Model Registration] A power supply whose output voltage has a constant polarity, a discharge lamp, and a chopper circuit connected to the output side of the power supply to control power supplied to the discharge lamp;
An inverter circuit connected between this chopper circuit and the discharge lamp and having a plurality of semiconductor switching elements, a drive circuit for driving this inverter circuit, and a frequency conversion circuit connected to this drive circuit via a photocoupler. In the device, the drive circuit includes a self-excited oscillation section that oscillates at a high frequency, and a light receiving section of the photocoupler therein corresponding to the number of semiconductor switching elements connected to the self-excited oscillation section. The frequency conversion circuit includes a frequency generation regulator for the lighting frequency of the discharge lamp, and a plurality of photocoupler light emitting units that determine conduction/non-conduction states according to the output thereof. An AC discharge lamp lighting device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2031889U JPH02113300U (en) | 1989-02-27 | 1989-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2031889U JPH02113300U (en) | 1989-02-27 | 1989-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02113300U true JPH02113300U (en) | 1990-09-11 |
Family
ID=31236587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2031889U Pending JPH02113300U (en) | 1989-02-27 | 1989-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02113300U (en) |
-
1989
- 1989-02-27 JP JP2031889U patent/JPH02113300U/ja active Pending
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