JPS5597776A - Television camera unit - Google Patents
Television camera unitInfo
- Publication number
- JPS5597776A JPS5597776A JP499279A JP499279A JPS5597776A JP S5597776 A JPS5597776 A JP S5597776A JP 499279 A JP499279 A JP 499279A JP 499279 A JP499279 A JP 499279A JP S5597776 A JPS5597776 A JP S5597776A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- smoothed
- capacitor
- line
- 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 make it possible to alternate easily between a standby mode and pickup mode by changing a power supply, supplying power to a camera part, over between a voltage including an AC component and that with no component.
CONSTITUTION: With switch 8 OFF in standby mode, transistor element 11 is OFF without being biased and since capacitor 9 separates fron line (g) in consequence, an AC voltage decreased by a transformer is rectified 6, but not smoothed, so that a pulsating current will appear on line (g). Camera part 5 detects it as a DC voltage by diode element 17, capacitors 16 and 18, etc., and since element 19 conducts, constant-voltage circuit 13 neither generates an output nor supplies power to main circuit 15. However, a DC voltage smoothed by diode element 20 and capacitor 21 is regulated by constant-voltage circuit 12 and the heater of pickup tube 14 is pre- heated. With switch 8 ON, a smoothed DC voltage is developed at line (g) and the camera part detects no AC component passing through capacitor 16. Consequently, element 19 is OFF and the appearing output of circuit 13 is supplied as a rated voltage to the heater of the pickup tube and main circuit 15.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP499279A JPS5597776A (en) | 1979-01-20 | 1979-01-20 | Television camera unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP499279A JPS5597776A (en) | 1979-01-20 | 1979-01-20 | Television camera unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5597776A true JPS5597776A (en) | 1980-07-25 |
JPS6128270B2 JPS6128270B2 (en) | 1986-06-30 |
Family
ID=11599095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP499279A Granted JPS5597776A (en) | 1979-01-20 | 1979-01-20 | Television camera unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5597776A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01179371U (en) * | 1988-06-08 | 1989-12-22 |
-
1979
- 1979-01-20 JP JP499279A patent/JPS5597776A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6128270B2 (en) | 1986-06-30 |
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