JPH045099U - - Google Patents
Info
- Publication number
- JPH045099U JPH045099U JP4647890U JP4647890U JPH045099U JP H045099 U JPH045099 U JP H045099U JP 4647890 U JP4647890 U JP 4647890U JP 4647890 U JP4647890 U JP 4647890U JP H045099 U JPH045099 U JP H045099U
- Authority
- JP
- Japan
- Prior art keywords
- signal line
- inverter circuit
- power
- discharge lamp
- 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.)
- Granted
Links
- 230000002265 prevention Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 7
Description
第１図はこの考案の第１の実施例の放電灯点灯
装置の構成を示すブロツク図、第２図ないし第５
図はそれぞれ信号線とインバータ回路との間の分
布容量を信号線と電源線との間の分布容量に比べ
て大きく設定するための具体構造を示す概略図、
第６図はこの考案の第２の実施例の放電灯点灯装
置の構成を示すブロツク図、第７図および第８図
はそれぞれ信号線の対地分布容量を信号線と電源
線との間の分布容量に比べて大きく設定するため
の具体構造を示す概略図、第９図は放電灯点灯装
置の従来例を示す回路図、第１０図は従来例の欠
点を示す概略図、第１１図は同じく従来例の欠点
を示すブロツク図である。
１……交流電源、４……高周波雑音防止用フイ
ルタ回路、５……インバータ回路、６……高周波
点灯装置本体、７……放電ランプ、８……電源線
、９……信号線、１０，１１……分布容量、１２
，１３……分布容量、１４，１５……ランプ配線
、１６……器具本体、１７……対地分布容量。
FIG. 1 is a block diagram showing the configuration of a discharge lamp lighting device according to the first embodiment of this invention, and FIGS.
The figures are a schematic diagram showing a specific structure for setting the distributed capacitance between the signal line and the inverter circuit to be larger than the distributed capacitance between the signal line and the power supply line, respectively.
FIG. 6 is a block diagram showing the configuration of a discharge lamp lighting device according to the second embodiment of this invention, and FIGS. 7 and 8 respectively show the distribution of the ground distribution capacitance of the signal line and the distribution between the signal line and the power supply line. A schematic diagram showing a specific structure for setting the capacity larger than the capacity, Figure 9 is a circuit diagram showing a conventional example of a discharge lamp lighting device, Figure 10 is a schematic diagram showing the drawbacks of the conventional example, and Figure 11 is the same. FIG. 2 is a block diagram showing the drawbacks of the conventional example. DESCRIPTION OF SYMBOLS 1...AC power supply, 4...High frequency noise prevention filter circuit, 5...Inverter circuit, 6...High frequency lighting device main body, 7...Discharge lamp, 8...Power line, 9...Signal line, 10, 11...Distributed capacity, 12
, 13... Distributed capacity, 14, 15... Lamp wiring, 16... Instrument body, 17... Ground distributed capacity.
Claims (1)
ータ回路の電源入力端に高周波雑音防止用フイル
タ回路を設けるとともに、前記インバータ回路か
ら動作制御用の信号線を引き出した放電灯点灯装
置において、 前記信号線と前記インバータ回路との間の分布
容量を、前記信号線と前記インバータ回路に前記
高周波雑音防止用フイルタ回路を介して給電する
電源線との間の分布容量に比べて大きく設定した
ことを特徴とする放電灯点灯装置。 (2) 放電ランプに高周波電力を供給するインバ
ータ回路の電源入力端に高周波雑音防止用フイル
タ回路を設けるとともに、前記インバータ回路か
ら動作制御用の信号線を引き出した放電灯点灯装
置において、 前記信号線の対地分布容量を、前記信号線と前
記インバータ回路に前記高周波雑音防止用フイル
タ回路を介して給電する電源線との間の分布容量
に比べて大きく設定したことを特徴とする放電灯
点灯装置。[Claims for Utility Model Registration] (1) A high-frequency noise prevention filter circuit is provided at the power input terminal of the inverter circuit that supplies high-frequency power to the discharge lamp, and a signal line for operation control is drawn out from the inverter circuit. In the lamp lighting device, the distributed capacitance between the signal line and the inverter circuit is compared with the distributed capacitance between the signal line and a power line that supplies power to the inverter circuit via the high frequency noise prevention filter circuit. A discharge lamp lighting device characterized by a large setting. (2) In a discharge lamp lighting device, a high-frequency noise prevention filter circuit is provided at the power input terminal of an inverter circuit that supplies high-frequency power to the discharge lamp, and a signal line for operation control is drawn out from the inverter circuit, the signal line A discharge lamp lighting device characterized in that a distributed capacitance to the ground is set to be larger than a distributed capacitance between the signal line and a power supply line that supplies power to the inverter circuit via the high-frequency noise prevention filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4647890U JPH0735357Y2 (en) | 1990-04-24 | 1990-04-24 | Discharge lamp lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4647890U JPH0735357Y2 (en) | 1990-04-24 | 1990-04-24 | Discharge lamp lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH045099U true JPH045099U (en) | 1992-01-17 |
| JPH0735357Y2 JPH0735357Y2 (en) | 1995-08-09 |
Family
ID=31561593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4647890U Expired - Lifetime JPH0735357Y2 (en) | 1990-04-24 | 1990-04-24 | Discharge lamp lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735357Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4933749A (en) * | 1972-07-31 | 1974-03-28 | ||
| JPS5492443A (en) * | 1977-09-14 | 1979-07-21 | Pignatti Eldima | Device for installing sewing machine for sewing finishing part to knit part |
-
1990
- 1990-04-24 JP JP4647890U patent/JPH0735357Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4933749A (en) * | 1972-07-31 | 1974-03-28 | ||
| JPS5492443A (en) * | 1977-09-14 | 1979-07-21 | Pignatti Eldima | Device for installing sewing machine for sewing finishing part to knit part |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0735357Y2 (en) | 1995-08-09 |
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