JPS592099U - Copier exposure power supply - Google Patents
Copier exposure power supplyInfo
- Publication number
- JPS592099U JPS592099U JP9661682U JP9661682U JPS592099U JP S592099 U JPS592099 U JP S592099U JP 9661682 U JP9661682 U JP 9661682U JP 9661682 U JP9661682 U JP 9661682U JP S592099 U JPS592099 U JP S592099U
- Authority
- JP
- Japan
- Prior art keywords
- lighting
- light source
- exposure light
- constant current
- winding
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考案の複写機の露光用電源装置の一実施例
の回路図、第２図はこめ考案の説明に供する制御状態を
示すための特性図である。
符号説明、１・・・・・・螢光灯、４・・・・・・定電
流駆動回路、６・・・・・・基準電圧設定回路、７・・
・・・・ＰＷＭ制御回路、Ｔ・・・・・・トランス、Ｃ
Ｔ・・・・・・電流検出トランス、ｆ□＋ Ｆ２・・・
・・・フィラメント巻線、Ｎ２・・・・・・ランプ点灯
巻線、ＲＬ・・・・・・リレー。FIG. 1 is a circuit diagram of an embodiment of an exposure power supply device for a copying machine according to this invention, and FIG. 2 is a characteristic diagram showing a control state to explain the invention. Explanation of symbols: 1...Fluorescent lamp, 4...Constant current drive circuit, 6...Reference voltage setting circuit, 7...
...PWM control circuit, T...transformer, C
T...Current detection transformer, f□+F2...
...Filament winding, N2...Lamp lighting winding, RL...Relay.
Claims (1)
動回路と、上記露光用光源の予熱電流及び点灯電流の基
準値を設定する手段を有する基準電圧設定回路と、上記
露光用光源を流れる電流を検出する検出手段と、この検
出した検出信号と上記基準電圧設定回路で設定された値
とを比較し、その差で上記定電流駆動回路を制御するＰ
ＷＭ制御回路と、上記トランスの２次側に設けたフィラ
メント巻線及び点灯巻線と、このフィラメント巻線と点
灯巻線を切換えることによりフィラメントの定電流駆動
と上記露光用光源の定電流駆動とを予熱時と点灯時とで
分けて行なうべく点灯用の信号により作動せしめられる
リレーとを備えることを特徴とする複写機の露光用電源
装置。a constant current drive circuit that supplies power to the exposure light source via a transformer; a reference voltage setting circuit having means for setting reference values for preheating current and lighting current of the exposure light source; and a current flowing through the exposure light source. a detection means for detecting P, which compares the detected detection signal with a value set by the reference voltage setting circuit, and controls the constant current drive circuit based on the difference.
A WM control circuit, a filament winding and a lighting winding provided on the secondary side of the transformer, and constant current driving of the filament and constant current driving of the exposure light source by switching between the filament winding and the lighting winding. 1. A power supply device for exposure of a copying machine, comprising a relay that is activated by a lighting signal so as to perform heating separately during preheating and during lighting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9661682U JPS592099U (en) | 1982-06-29 | 1982-06-29 | Copier exposure power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9661682U JPS592099U (en) | 1982-06-29 | 1982-06-29 | Copier exposure power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS592099U true JPS592099U (en) | 1984-01-07 |
Family
ID=30230177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9661682U Pending JPS592099U (en) | 1982-06-29 | 1982-06-29 | Copier exposure power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS592099U (en) |
-
1982
- 1982-06-29 JP JP9661682U patent/JPS592099U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| HU903166D0 (en) | Device for controlling fluorescent lamps provided with light reducing screen | |
| JPS592099U (en) | Copier exposure power supply | |
| JPH0773977A (en) | Lamp dimming circuit and exposure device employing the dimming circuit | |
| JPH0159831B2 (en) | ||
| JPS5816650U (en) | Copier exposure power supply | |
| JPS5814558Y2 (en) | discharge lamp lighting device | |
| JPS5811039Y2 (en) | emergency lighting system | |
| JPS6087499U (en) | Lighting device with dimming | |
| JPS61227395A (en) | Discharge lamp lighting apparatus | |
| JPS58147194U (en) | discharge lamp lighting device | |
| JPH076892A (en) | Discharge lamp lighting device for light dimming | |
| JPS58113300U (en) | discharge lamp lighting device | |
| JPS5854598A (en) | Dimming discharge lamp firing device | |
| JPS5844798U (en) | dimmer | |
| JPS5851600U (en) | Power supply device for fluorescent lamp with dimming function | |
| JPS61227396A (en) | Discharge lamp lighting apparatus | |
| JPS6251197A (en) | Discharge lamp dimmer | |
| JPS59187098U (en) | discharge lamp lighting device | |
| JPS61798U (en) | discharge lamp lighting device | |
| JPS6134896A (en) | Discharge lamp dimming device | |
| JPH01134991U (en) | ||
| JPS5946497U (en) | discharge lamp lighting device | |
| JPS58135599A (en) | Dimmer discharge lamp firing device | |
| JPH07122381A (en) | Electric power supply apparatus and discharge lamp lighting apparatus and lighting system using power supply apparatus | |
| JPS6051423A (en) | Ac/dc power source circuit |