JPS6092235U - Direct current power supply for projection - Google Patents
Direct current power supply for projectionInfo
- Publication number
- JPS6092235U JPS6092235U JP18401683U JP18401683U JPS6092235U JP S6092235 U JPS6092235 U JP S6092235U JP 18401683 U JP18401683 U JP 18401683U JP 18401683 U JP18401683 U JP 18401683U JP S6092235 U JPS6092235 U JP S6092235U
- Authority
- JP
- Japan
- Prior art keywords
- output current
- current
- projection
- power supply
- direct 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.)
- Granted
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図は一般的な映写用直流電源装置のブロック図、第
２図は第１図に使用される従来の電流設定調整器の１実
施例の接続図、第３図は従来の電流設定調整器を使用し
た場合の、光源に流れる電流および電磁接触器の通電の
状態を示す図、第４図は本考案の電流設定調整器の１実
施例の接続図、第５図は本考案の電流設定調整器を使用
した場合の、光源に流れる電流および電磁接触器の通電
の状態を示す図である。
２２・・・・・・コンデンサ、２３・・・抵抗。Figure 1 is a block diagram of a general DC power supply for projection, Figure 2 is a connection diagram of one embodiment of the conventional current setting regulator used in Figure 1, and Figure 3 is a conventional current setting adjustment. Figure 4 is a connection diagram of one embodiment of the current setting regulator of the present invention, and Figure 5 is the current flow of the present invention. FIG. 6 is a diagram showing the current flowing through the light source and the energization state of the electromagnetic contactor when a setting adjuster is used. 22... Capacitor, 23... Resistor.
Claims (1)
を負荷に供給し、該出力電流を電流検出器により検出し
、前記検出した信号を、基準電源、全出力電流と半出力
電流とを切換える信号を送る手段、前記全出力電流を設
定する全出力電流設定器、前記半出力電流を設定する半
出力電流設定器、および演算増幅器から構成される公知
の電流設定調整器に入力し、該電流設定調整器の信号を
点弧回路に入力し、該点弧回路の出力によって前記半導
体整流素子を出力側御し、前記出力電流を定電流特性、
にする映写用直流電源装置において、前記全出力電流設
定器と前記演算増幅器との間に直列に接続された常時閉
接点に、並列に、コンデン辱と抵抗の直列回路を設けた
ことを特徴とする映写用直流電源装置。An AC input is controlled and rectified by a semiconductor rectifier, an output current is supplied to a load, the output current is detected by a current detector, and the detected signal is used as a reference power source, a signal for switching between a full output current and a half output current. a full output current setter for setting the full output current, a half output current setter for setting the half output current, and an operational amplifier; The signal from the regulator is input to an ignition circuit, the output of the ignition circuit controls the semiconductor rectifying element to the output side, and the output current has constant current characteristics.
A direct current power supply device for projection, characterized in that a series circuit of a capacitor and a resistor is provided in parallel with a normally closed contact connected in series between the total output current setting device and the operational amplifier. Direct current power supply for projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18401683U JPS6092235U (en) | 1983-11-29 | 1983-11-29 | Direct current power supply for projection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18401683U JPS6092235U (en) | 1983-11-29 | 1983-11-29 | Direct current power supply for projection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6092235U true JPS6092235U (en) | 1985-06-24 |
| JPS6226747Y2 JPS6226747Y2 (en) | 1987-07-09 |
Family
ID=30398112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18401683U Granted JPS6092235U (en) | 1983-11-29 | 1983-11-29 | Direct current power supply for projection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6092235U (en) |
-
1983
- 1983-11-29 JP JP18401683U patent/JPS6092235U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6226747Y2 (en) | 1987-07-09 |
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