JPH01174899U - - Google Patents
Info
- Publication number
- JPH01174899U JPH01174899U JP7211088U JP7211088U JPH01174899U JP H01174899 U JPH01174899 U JP H01174899U JP 7211088 U JP7211088 U JP 7211088U JP 7211088 U JP7211088 U JP 7211088U JP H01174899 U JPH01174899 U JP H01174899U
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent lamp
- series
- diodes
- heater
- 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
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は本考案の他の実施例を示す回路図、第３図は
従来例を示す回路図である。
１……交流発生源、２……電流制限コンデンサ
ー、３……蛍光灯、４……スイツチングトランジ
スタ、６，７……ヒーター、８，９，１０，１１
……ダイオード、１４……ヒーター予熱電源。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram showing another embodiment of the present invention, and FIG. 3 is a circuit diagram showing a conventional example. 1... AC source, 2... Current limiting capacitor, 3... Fluorescent lamp, 4... Switching transistor, 6, 7... Heater, 8, 9, 10, 11
...Diode, 14...Heater preheating power supply.
Claims (1)
て、前記蛍光灯の各電極のヒーター端子間にそれ
ぞれ逆方向のダイオードの直列接続体を接続し、
前記直列接続したダイオードの中間接続点間にヒ
ーター予熱電源と予熱動作時オンするスイツチン
グ素子の直列回路を接続してなることを特徴とす
る蛍光灯の点灯回路。 In a fluorescent lamp driven by an alternating current source, a series connection body of diodes in opposite directions is connected between the heater terminals of each electrode of the fluorescent lamp,
A lighting circuit for a fluorescent lamp, characterized in that a series circuit of a heater preheating power source and a switching element that is turned on during preheating operation is connected between intermediate connection points of the series-connected diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7211088U JPH01174899U (en) | 1988-05-30 | 1988-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7211088U JPH01174899U (en) | 1988-05-30 | 1988-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01174899U true JPH01174899U (en) | 1989-12-12 |
Family
ID=31297286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7211088U Pending JPH01174899U (en) | 1988-05-30 | 1988-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01174899U (en) |
-
1988
- 1988-05-30 JP JP7211088U patent/JPH01174899U/ja active Pending