JPH0348899U - - Google Patents
Info
- Publication number
- JPH0348899U JPH0348899U JP10886389U JP10886389U JPH0348899U JP H0348899 U JPH0348899 U JP H0348899U JP 10886389 U JP10886389 U JP 10886389U JP 10886389 U JP10886389 U JP 10886389U JP H0348899 U JPH0348899 U JP H0348899U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- capacitor
- discharge lamp
- switch element
- negative side
- 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 9
- 238000009499 grossing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第1図、第2図…それぞれ本考案の実施例を示
す回路図。第3図aおよびb…第1図、第2図回
路の放電電流波形図。第4図…従来回路の回路図
。第5図aおよびb…従来回路の放電電流波形図
。
1…電源、2…全波整流器、3…平滑用コンデ
ンサ、4…共振用コンデンサ、5…共振用インダ
クタンス、6…トランジスタ、7…ダイオード、
8…電流帰還用トランス、9…バラスト用インダ
クタンス、10,11…コンデンサ、12…予熱
用コンデンサ、13…放電灯、14…抵抗。
FIGS. 1 and 2 are circuit diagrams each showing an embodiment of the present invention. FIGS. 3a and 3b: Discharge current waveform diagrams of the circuits of FIGS. 1 and 2. FIG. 4...Circuit diagram of a conventional circuit. FIGS. 5a and 5b are discharge current waveform diagrams of a conventional circuit. 1... Power supply, 2... Full wave rectifier, 3... Smoothing capacitor, 4... Resonant capacitor, 5... Resonant inductance, 6... Transistor, 7... Diode,
8... Current feedback transformer, 9... Ballast inductance, 10, 11... Capacitor, 12... Preheating capacitor, 13... Discharge lamp, 14... Resistor.
補正 平1.12.11
図面の簡単な説明を次のように補正する。
明細書の第7頁11行目の「第5図aおよびb
」を「第5図a,bおよびc」に訂正する。Amendment 1.12.11. The brief description of the drawing is amended as follows. "Figure 5 a and b" on page 7, line 11 of the specification
" should be corrected to "Figure 5 a, b and c".
Claims (1)
らなる回路、平滑用コンデンサ3の正側から共振
用コンデンサ4と共振用インダクタンス5の並列
回路とスイツチ素子6を介して負側に至る回路、
同じく正側から放電灯13のフイラメント、予熱
用コンデンサ12及びもう一方のフイラメント、
バラスト用インダクタンス9、電流帰還用トラン
ス8を介してスイツチ素子6、負側に至る回路、
電流帰還用トランス8の2次側の一端とスイツチ
素子6の入力及び他端とコンデンサ10を介して
負側に至る回路、スイツチ素子6の入力とダイオ
ード7のカソード、そのアノードと抵抗14を介
して負側に至る回路を備えたものにおいて、放電
灯の放電電流の流れる経路に直流分をしや断する
素子を挿入したことを特徴とした放電灯点灯回路
。 A circuit consisting of a power supply 1, a full-wave rectifier 2, and a smoothing capacitor 3, a circuit from the positive side of the smoothing capacitor 3 to the negative side via a parallel circuit of a resonance capacitor 4 and a resonance inductance 5, and a switch element 6,
Similarly, from the positive side, the filament of the discharge lamp 13, the preheating capacitor 12, and the other filament,
A circuit leading to the switch element 6 and the negative side via the ballast inductance 9 and the current feedback transformer 8,
A circuit connected to the negative side via one end of the secondary side of the current feedback transformer 8, the input and other end of the switch element 6, and the capacitor 10, the input of the switch element 6, the cathode of the diode 7, its anode, and the resistor 14. What is claimed is: 1. A discharge lamp lighting circuit comprising a circuit leading to a negative side of the discharge lamp, characterized in that an element for cutting off a direct current component is inserted in a path through which a discharge current of the discharge lamp flows.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10886389U JPH0348899U (en) | 1989-09-18 | 1989-09-18 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10886389U JPH0348899U (en) | 1989-09-18 | 1989-09-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0348899U true JPH0348899U (en) | 1991-05-10 |
Family
ID=31657478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10886389U Pending JPH0348899U (en) | 1989-09-18 | 1989-09-18 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0348899U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101035973B1 (en) * | 2010-10-25 | 2011-05-23 | 현대엠코 주식회사 | Exterior insulation panel unit and exterior insulation system using the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5778797A (en) * | 1980-10-31 | 1982-05-17 | Nippon Electric Co | Device for firing discharge lamp |
-
1989
- 1989-09-18 JP JP10886389U patent/JPH0348899U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5778797A (en) * | 1980-10-31 | 1982-05-17 | Nippon Electric Co | Device for firing discharge lamp |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101035973B1 (en) * | 2010-10-25 | 2011-05-23 | 현대엠코 주식회사 | Exterior insulation panel unit and exterior insulation system using the same |
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