JPS5597776A - Television camera unit - Google Patents

Television camera unit

Info

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
Application number
JP499279A
Other languages
Japanese (ja)
Other versions
JPS6128270B2 (en
Inventor
Shigemitsu Yamade
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP499279A priority Critical patent/JPS5597776A/en
Publication of JPS5597776A publication Critical patent/JPS5597776A/en
Publication of JPS6128270B2 publication Critical patent/JPS6128270B2/ja
Granted legal-status Critical Current

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
JP499279A 1979-01-20 1979-01-20 Television camera unit Granted JPS5597776A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01179371U (en) * 1988-06-08 1989-12-22

Also Published As

Publication number Publication date
JPS6128270B2 (en) 1986-06-30

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