JPS60181973U - High voltage circuit for cathode ray tubes - Google Patents
High voltage circuit for cathode ray tubesInfo
- Publication number
- JPS60181973U JPS60181973U JP1984070544U JP7054484U JPS60181973U JP S60181973 U JPS60181973 U JP S60181973U JP 1984070544 U JP1984070544 U JP 1984070544U JP 7054484 U JP7054484 U JP 7054484U JP S60181973 U JPS60181973 U JP S60181973U
- Authority
- JP
- Japan
- Prior art keywords
- rectifier circuit
- anode
- diode
- cathode ray
- 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
Landscapes
- Details Of Television Scanning (AREA)
- Transforming Electric Information Into Light Information (AREA)
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は電子式ファインダの構成の一例を示す模式図、
第２図Ａおよび第２図Ｂはアノード電流の変化に伴うア
ノード電圧の変化およびフォーカス電圧の変化をそれぞ
れ示すグラフである。第３図は本考案に係る陰極線管用
高圧回路の一実施例を示す回路図である。
１１・・・フライバックトランス、１３，１４．３２・
・・ダイオード、１５，１７，３４・・・抵抗、１６゛
・・・可変抵抗、１８．３３・・・コンデンサ、１９・
・・フォーカス電圧出力端子、２０・・・６倍圧整流回
路、２１・・・アノード電圧出力端子、３０・・・フォ
ーカス電圧補償回路、３１・・・電流源。FIG. 1 is a schematic diagram showing an example of the configuration of an electronic finder.
FIGS. 2A and 2B are graphs showing changes in anode voltage and focus voltage, respectively, with changes in anode current. FIG. 3 is a circuit diagram showing an embodiment of a high voltage circuit for a cathode ray tube according to the present invention. 11...Flyback transformer, 13,14.32.
...Diode, 15,17,34...Resistor, 16゛...Variable resistor, 18.33...Capacitor, 19.
... Focus voltage output terminal, 20... Six-fold voltage rectifier circuit, 21... Anode voltage output terminal, 30... Focus voltage compensation circuit, 31... Current source.
Claims (1)
するフライバックトランスと、このフライバックトラン
スにより昇圧されたフライバックパルスを整流して陰極
線管の陽極に陽極電圧を供給する第１の整流回路と、こ
の整流回路と入力端が共通接続され上記昇圧されたフラ
イバックパルスを整流して上記陰極線管のフォーカス端
子にフォーカス電圧を供給する第２の整流回路と、アノ
ードが電流源に接続されカソードが接地された第１のダ
イオードとこのダイオードに並列接続されたコンデンサ
および抵抗とからなるフォーカス電圧補償回路と、この
フォーカス電圧補償回路の第１のダイオードのアノード
、コンデンサ、および抵抗の接続点と上記第１および第
２の整流回路の共通接続された入力端との間に接続され
た第２のダイオードとを備えた陰極線管用高圧回路。a flyback transformer that boosts the flyback pulse output from the horizontal deflection circuit; a first rectifier circuit that rectifies the flyback pulse boosted by the flyback transformer and supplies anode voltage to the anode of the cathode ray tube; A second rectifier circuit whose input terminal is commonly connected to this rectifier circuit rectifies the boosted flyback pulse and supplies a focus voltage to the focus terminal of the cathode ray tube, and a second rectifier circuit whose anode is connected to the current source and whose cathode is grounded. a focus voltage compensation circuit consisting of a first diode, a capacitor and a resistor connected in parallel to the diode; a connection point between the anode, the capacitor and the resistor of the first diode of the focus voltage compensation circuit; and a second diode connected between the commonly connected input terminals of the second rectifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984070544U JPS60181973U (en) | 1984-05-15 | 1984-05-15 | High voltage circuit for cathode ray tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984070544U JPS60181973U (en) | 1984-05-15 | 1984-05-15 | High voltage circuit for cathode ray tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60181973U true JPS60181973U (en) | 1985-12-03 |
Family
ID=30607214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984070544U Pending JPS60181973U (en) | 1984-05-15 | 1984-05-15 | High voltage circuit for cathode ray tubes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60181973U (en) |
-
1984
- 1984-05-15 JP JP1984070544U patent/JPS60181973U/en active Pending
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