JPS6421423A - Charge stopping device in flash light generation device - Google Patents
Charge stopping device in flash light generation deviceInfo
- Publication number
- JPS6421423A JPS6421423A JP17703787A JP17703787A JPS6421423A JP S6421423 A JPS6421423 A JP S6421423A JP 17703787 A JP17703787 A JP 17703787A JP 17703787 A JP17703787 A JP 17703787A JP S6421423 A JPS6421423 A JP S6421423A
- Authority
- JP
- Japan
- Prior art keywords
- charged voltage
- transistor
- voltage
- time
- stopped
- 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
PURPOSE:To prevent the wasteful consumption of electric power by stopping the oscillating action of a transistor according to the detected voltage at the time when the charged voltage of a main capacitor reaches a specified value. CONSTITUTION:When charging is advanced and the charged voltage of the main capacitor 28 reaches the charged voltage Vo, a transistor 30 receives the voltage of a tap (a) in its base and is turned on so as to stop the on and off oscillation of a switching transistor 20. When an output current i2 is stopped by the stopping of oscillation, fly-back voltages are generated in the respective coils of a booster transformer 21 and the transistors 20 and 30 remain off. Thus, the charging action is stopped according as the main capacitor 28 obtains the charged voltage Vo, but the charged voltage actually becomes Vo+DELTAVo because there is a slight time difference from the time when a base current is applied to the transistor 30 to the time when the output current i2 is stopped. Then divided resistances and the transistors for amplification, etc., are not needed, so that the power consumption can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62177037A JP2632517B2 (en) | 1987-07-17 | 1987-07-17 | Charge stop device in flash discharge light emitter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62177037A JP2632517B2 (en) | 1987-07-17 | 1987-07-17 | Charge stop device in flash discharge light emitter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6421423A true JPS6421423A (en) | 1989-01-24 |
JP2632517B2 JP2632517B2 (en) | 1997-07-23 |
Family
ID=16024041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62177037A Expired - Fee Related JP2632517B2 (en) | 1987-07-17 | 1987-07-17 | Charge stop device in flash discharge light emitter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2632517B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2298717A (en) * | 1993-12-07 | 1996-09-11 | Komatsu Mfg Co Ltd | Electric lever device |
EP0934683A1 (en) * | 1996-10-16 | 1999-08-11 | Tapeswitch Corporation | Inductive-resistive fluorescent apparatus and method |
US6109742A (en) * | 1993-05-13 | 2000-08-29 | Canon Kabushiki Kaisha | Ink tank, head cartridge and ink jet printing apparatus |
US6286945B1 (en) | 1992-07-24 | 2001-09-11 | Canon Kabushiki Kaisha | Ink jet cartridge, ink jet head and printer |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6044399U (en) * | 1983-09-02 | 1985-03-28 | 不二交易株式会社 | Charging stop circuit in flash discharge light emitter |
-
1987
- 1987-07-17 JP JP62177037A patent/JP2632517B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6044399U (en) * | 1983-09-02 | 1985-03-28 | 不二交易株式会社 | Charging stop circuit in flash discharge light emitter |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6286945B1 (en) | 1992-07-24 | 2001-09-11 | Canon Kabushiki Kaisha | Ink jet cartridge, ink jet head and printer |
US6109742A (en) * | 1993-05-13 | 2000-08-29 | Canon Kabushiki Kaisha | Ink tank, head cartridge and ink jet printing apparatus |
GB2298717A (en) * | 1993-12-07 | 1996-09-11 | Komatsu Mfg Co Ltd | Electric lever device |
GB2298717B (en) * | 1993-12-07 | 1997-12-03 | Komatsu Mfg Co Ltd | Electrical lever assembly |
US5755138A (en) * | 1993-12-07 | 1998-05-26 | Komatsu Ltd. | Electrical lever assembly |
EP0934683A1 (en) * | 1996-10-16 | 1999-08-11 | Tapeswitch Corporation | Inductive-resistive fluorescent apparatus and method |
EP0934683A4 (en) * | 1996-10-16 | 2002-01-09 | Tapeswitch Corp | Inductive-resistive fluorescent apparatus and method |
Also Published As
Publication number | Publication date |
---|---|
JP2632517B2 (en) | 1997-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |