JPH0292700U - - Google Patents
Info
- Publication number
- JPH0292700U JPH0292700U JP52889U JP52889U JPH0292700U JP H0292700 U JPH0292700 U JP H0292700U JP 52889 U JP52889 U JP 52889U JP 52889 U JP52889 U JP 52889U JP H0292700 U JPH0292700 U JP H0292700U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- discharge lamp
- inverter circuit
- current detection
- current
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000009499 grossing Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims 2
- 230000001052 transient effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図は、本考案の放電ランプ点灯装置の一実
施例を示す回路図である。
図中：１：放電ランプ、２：交流電源、４：イ
ンバーター回路、６：平滑回路、７：電流検出用
抵抗、９：制御回路。
FIG. 1 is a circuit diagram showing an embodiment of the discharge lamp lighting device of the present invention. In the figure: 1: discharge lamp, 2: AC power supply, 4: inverter circuit, 6: smoothing circuit, 7: current detection resistor, 9: control circuit.
Claims (1)
れた放電ランプと、前記インバーター回路と前記
放電ランプの間に接続された平滑用コンデンサー
と電流検出用抵抗と、この電流検出用抵抗からの
検出信号に基づいて前記インバーター回路を駆動
する制御回路を有する装置において、 前記電流検出用抵抗は、その一方が前記放電ラ
ンプの陰極と接続され他方がアースされた第一の
抵抗と、その一方がアースされて他方が前記イン
バーター回路の二次側出力に接続された第二の抵
抗を有し、前記第二の抵抗の一方に前記平滑用コ
ンデンサーの一端が接続され、前記第一の抵抗に
より前記放電ランプの定常点灯電流を制御する手
段と、前記第二の抵抗により前記インバーター回
路より供給される電流の過渡的な変動を制御する
手段を有することを特徴とする放電ランプ点灯装
置。[Claims for Utility Model Registration] An AC power source, a discharge lamp connected via an inverter circuit, a smoothing capacitor and a current detection resistor connected between the inverter circuit and the discharge lamp, and the current detection In the device having a control circuit that drives the inverter circuit based on a detection signal from a current detection resistor, the current detection resistor is a first resistor, one of which is connected to the cathode of the discharge lamp, and the other is grounded. a second resistor, one of which is grounded and the other of which is connected to the secondary output of the inverter circuit; one end of the smoothing capacitor is connected to one of the second resistors; A discharge lamp lighting device comprising means for controlling the steady-state lighting current of the discharge lamp using a resistor, and means for controlling transient fluctuations in the current supplied from the inverter circuit using the second resistor. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52889U JPH0292700U (en) | 1989-01-09 | 1989-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52889U JPH0292700U (en) | 1989-01-09 | 1989-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0292700U true JPH0292700U (en) | 1990-07-23 |
Family
ID=31199638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52889U Pending JPH0292700U (en) | 1989-01-09 | 1989-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0292700U (en) |
-
1989
- 1989-01-09 JP JP52889U patent/JPH0292700U/ja active Pending
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