JPH0272082U - - Google Patents
Info
- Publication number
- JPH0272082U JPH0272082U JP15120988U JP15120988U JPH0272082U JP H0272082 U JPH0272082 U JP H0272082U JP 15120988 U JP15120988 U JP 15120988U JP 15120988 U JP15120988 U JP 15120988U JP H0272082 U JPH0272082 U JP H0272082U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- television camera
- sync
- outputs
- 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
- 238000000926 separation method Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 2
- 239000000284 extract Substances 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Description
図面は本考案の実施例を示すブロツク図。
２……カメラ、４……電源回路、６……同期信
号発生器、８……ケーブル、１０……同期分離回
路、１２……位相比較回路、１４……ローパスフ
イルタ、１６……可変電圧源。
The drawing is a block diagram showing an embodiment of the present invention. 2... Camera, 4... Power supply circuit, 6... Synchronous signal generator, 8... Cable, 10... Synchronous separation circuit, 12... Phase comparison circuit, 14... Low pass filter, 16... Variable voltage source .
Claims (1)
の同期信号発生器からの同期信号を受けて映像信
号とこの同期信号のコンポジツト信号を電源線に
出力するテレビカメラと、このテレビカメラに電
源を供給する電源回路と、この電源回路、前記同
期信号発生器およびテレビカメラからの信号を重
畳する重畳回路と、この重畳回路と前記テレビカ
メラとを接続するケーブル線と、を有するテレビ
カメラの電源装置において、前記電源回路が、前
記テレビカメラからのコンポジツト信号から同期
信号のみ取り出す同期分離回路と、この同期分離
回路からの同期信号と前記同期信号発生器からの
同期信号とを比較し両信号の位相差に対応した信
号を出力する位相比較回路と、この位相比較回路
からの信号に対応した電圧コントロール信号を出
力する電圧コントロール回路と、この電圧コント
ロール信号に対応して前記テレビカメラに前記重
畳回路及びケーブル線を介して供給する出力電圧
値を可変する可変電圧源と、から成ることを特徴
とするテレビカメラの電源装置。 A synchronization signal generator that generates an external synchronization signal, a television camera that receives the synchronization signal from the synchronization signal generator and outputs a composite signal of the video signal and this synchronization signal to the power line, and supplies power to the television camera. a power supply circuit for a television camera, a superimposition circuit for superimposing signals from the power supply circuit, the synchronization signal generator and the television camera, and a cable line for connecting the superposition circuit and the television camera. , the power supply circuit includes a sync separation circuit that extracts only the sync signal from the composite signal from the television camera, compares the sync signal from the sync separation circuit with the sync signal from the sync signal generator, and determines the phase difference between the two signals. a phase comparison circuit that outputs a signal corresponding to the signal from the phase comparison circuit; a voltage control circuit that outputs a voltage control signal corresponding to the signal from the phase comparison circuit; and a voltage control circuit that outputs a voltage control signal corresponding to the signal from the phase comparison circuit; A power supply device for a television camera, comprising: a variable voltage source that varies the output voltage value supplied via a line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15120988U JPH067635Y2 (en) | 1988-11-18 | 1988-11-18 | TV camera power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15120988U JPH067635Y2 (en) | 1988-11-18 | 1988-11-18 | TV camera power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0272082U true JPH0272082U (en) | 1990-06-01 |
| JPH067635Y2 JPH067635Y2 (en) | 1994-02-23 |
Family
ID=31425052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15120988U Expired - Lifetime JPH067635Y2 (en) | 1988-11-18 | 1988-11-18 | TV camera power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067635Y2 (en) |
-
1988
- 1988-11-18 JP JP15120988U patent/JPH067635Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH067635Y2 (en) | 1994-02-23 |
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