JPS5652735A - Charging circuit for flash capacitor - Google Patents
Charging circuit for flash capacitorInfo
- Publication number
- JPS5652735A JPS5652735A JP12964879A JP12964879A JPS5652735A JP S5652735 A JPS5652735 A JP S5652735A JP 12964879 A JP12964879 A JP 12964879A JP 12964879 A JP12964879 A JP 12964879A JP S5652735 A JPS5652735 A JP S5652735A
- Authority
- JP
- Japan
- Prior art keywords
- current
- base
- negative pole
- capacitor
- flash capacitor
- 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
Landscapes
- Stroboscope Apparatuses (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Dc-Dc Converters (AREA)
Abstract
PURPOSE:To enable the negative pole of a flash capacitor and the negative pole of a primary electric source to be connected by supplying the current equivalent to the charging current of a flash capacitor to the base of an oscillating transistor. CONSTITUTION:The collector of a transistor TRQ2' of which the base is connected to the base of TRQ3' connected to the winding S of an oscillating transformer T. Because of this, the charging current of a flash capacitor C1, that is, the current equivalent to the collector current of the TRQ3' is formed as the collector current of the TRQ2' and this current is supplied as the base current of the TRQ1. Hence, even if the negative pole of the capacitor C1 is not connected to the base of the TRQ1, oscillation operatiom may be stably maintained and the negative pole of the capacitor C1 and the negative pole of a primary electric power source E may be connected. If this charging circuit is used, the charging voltage of the flash capacitor may be accurately detected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12964879A JPS5919636B2 (en) | 1979-10-08 | 1979-10-08 | Charging circuit for flash capacitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12964879A JPS5919636B2 (en) | 1979-10-08 | 1979-10-08 | Charging circuit for flash capacitor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5652735A true JPS5652735A (en) | 1981-05-12 |
JPS5919636B2 JPS5919636B2 (en) | 1984-05-08 |
Family
ID=15014706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12964879A Expired JPS5919636B2 (en) | 1979-10-08 | 1979-10-08 | Charging circuit for flash capacitor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5919636B2 (en) |
-
1979
- 1979-10-08 JP JP12964879A patent/JPS5919636B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5919636B2 (en) | 1984-05-08 |
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