JPH0322398U - - Google Patents
Info
- Publication number
- JPH0322398U JPH0322398U JP8286289U JP8286289U JPH0322398U JP H0322398 U JPH0322398 U JP H0322398U JP 8286289 U JP8286289 U JP 8286289U JP 8286289 U JP8286289 U JP 8286289U JP H0322398 U JPH0322398 U JP H0322398U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- discharge lamp
- capacitors
- lighting device
- lamp lighting
- 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
- 239000003990 capacitor Substances 0.000 claims description 13
- 239000011888 foil Substances 0.000 claims 2
- 238000005476 soldering Methods 0.000 claims 2
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図Ａは本考案の実施例を概略的に示した構
成図、第１図Ｂは同実施例の構成を示す分解斜視
図、第２図は同実施例で用いる点灯回路の構成例
を示す回路図である。
１……商用電源、１ａ，１ｂ……交流電源ライ
ン、２……整流回路、３……インバータ回路、４
……放電灯、５……フイルタ回路、ｔ１，ｔ２…
…電源端子、Ｌ１……第１のチヨークコイル、Ｌ
２……第２のチヨークコイル、Ｃ１……第１のコ
ンデンサ、Ｃ２……第２のコンデンサ、Ｃ３……
第３のコンデンサ、ｅ……アース点、１０……プ
リント基板、１１……電子部品、１２……絶縁板
、１３……導電板。
FIG. 1A is a block diagram schematically showing an embodiment of the present invention, FIG. 1B is an exploded perspective view showing the structure of the same embodiment, and FIG. 2 is a configuration example of a lighting circuit used in the same embodiment. FIG. 1... Commercial power supply, 1a, 1b... AC power line, 2... Rectifier circuit, 3... Inverter circuit, 4
...Discharge lamp, 5...Filter circuit, t1, t2...
...Power terminal, L1...First chiyoke coil, L
2... Second chiyoke coil, C1... First capacitor, C2... Second capacitor, C3...
Third capacitor, e... Earth point, 10... Printed circuit board, 11... Electronic component, 12... Insulating plate, 13... Conductive plate.
Claims (1)
の出力を入力とするインバータ回路と前記インバ
ータ回路から生じるノイズが交流電源ライン側に
侵入するのを阻止するフイルタ回路とを構成する
電子部品を片面が半田付け面となつているプリン
ト基板に実装し、前記インバータ回路の出力によ
り放電灯を点灯する放電灯点灯装置において、 前記プリント基板の半田付け面に絶縁板を介し
て導電板を対向させ、 前記フイルタ回路のアース点を前記導電板に接
続したことを特徴とする放電灯点灯装置。 (2) 片面に導電箔を有する印刷配線用基板の導
電箔及び絶縁基板をそれぞれ前記導電板及び絶縁
板として用いたことを特徴とする請求項１に記載
の放電灯点灯装置。 (3) 前記フイルタ回路は前記整流回路の交流入
力端子間に接続された２個のコンデンサの直列回
路を備え、該２個のコンデンサの接続点が前記ア
ース点となつている請求項１または２に記載の放
電灯点灯装置。 (4) 前記フイルタ回路は、前記交流電源ライン
に接続される端子間に接続された第１のコンデン
サと、前記整流回路の交流入力端子間に接続され
た第２及び第３のコンデンサの直列回路と、前記
第１のコンデンサの一端と前記第２及び第３のコ
ンデンサの直列回路の一端との間及び前記第１の
コンデンサの他端と前記第２及び第３のコンデン
サの直列回路の他端との間にそれぞれ接続されて
互いに磁気結合された第１及び第２のチヨークコ
イルとを備え、前記第２及び第３のコンデンサの
接続点が前記アース点となつている請求項１また
は２に記載の放電灯点灯装置。[Claims for Utility Model Registration] (1) A rectifier circuit that rectifies AC power, an inverter circuit that receives the output of the rectifier circuit, and a filter that prevents noise generated from the inverter circuit from entering the AC power line side. In a discharge lamp lighting device in which electronic components constituting a circuit are mounted on a printed circuit board whose one side is a soldering surface, and a discharge lamp is lit by the output of the inverter circuit, an insulating plate is provided on the soldering surface of the printed circuit board. A discharge lamp lighting device characterized in that conductive plates are opposed to each other via the conductive plates, and a ground point of the filter circuit is connected to the conductive plates. (2) The discharge lamp lighting device according to claim 1, wherein a conductive foil and an insulating substrate of a printed wiring board having a conductive foil on one side are used as the conductive plate and the insulating plate, respectively. (3) The filter circuit includes a series circuit of two capacitors connected between the AC input terminals of the rectifier circuit, and a connection point between the two capacitors is the ground point. The discharge lamp lighting device described in . (4) The filter circuit is a series circuit of a first capacitor connected between terminals connected to the AC power line, and second and third capacitors connected between AC input terminals of the rectifier circuit. and between one end of the first capacitor and one end of the series circuit of the second and third capacitors, and between the other end of the first capacitor and the other end of the series circuit of the second and third capacitors. 3. The capacitor according to claim 1, further comprising first and second choke coils that are connected between and magnetically coupled to each other, and a connection point of the second and third capacitors is the ground point. discharge lamp lighting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8286289U JPH0322398U (en) | 1989-07-14 | 1989-07-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8286289U JPH0322398U (en) | 1989-07-14 | 1989-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0322398U true JPH0322398U (en) | 1991-03-07 |
Family
ID=31630045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8286289U Pending JPH0322398U (en) | 1989-07-14 | 1989-07-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0322398U (en) |
-
1989
- 1989-07-14 JP JP8286289U patent/JPH0322398U/ja active Pending
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