JPS62103369U - - Google Patents

Info

Publication number
JPS62103369U
JPS62103369U JP19561485U JP19561485U JPS62103369U JP S62103369 U JPS62103369 U JP S62103369U JP 19561485 U JP19561485 U JP 19561485U JP 19561485 U JP19561485 U JP 19561485U JP S62103369 U JPS62103369 U JP S62103369U
Authority
JP
Japan
Prior art keywords
voltage
pass filter
generates
low
sawtooth
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.)
Pending
Application number
JP19561485U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP19561485U priority Critical patent/JPS62103369U/ja
Publication of JPS62103369U publication Critical patent/JPS62103369U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案の一実施例を示す回路図、第
２乃至第４図は第１図の説明に供するための波形
図、第５図は従来の同期検出回路を示す回路図、
第６乃至第８図は第５図の説明に供するための波
形図である。 ７……トランジスタ、８……定電流源、９……
コンデンサ、１０……ローパスフイルタ、１１…
…比較回路、１２……基準電源。 FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIGS. 2 to 4 are waveform diagrams for explaining FIG. 1, and FIG. 5 is a circuit diagram showing a conventional synchronization detection circuit.
6 to 8 are waveform diagrams for explaining FIG. 5. 7...transistor, 8...constant current source, 9...
Capacitor, 10 ...Low pass filter, 11...
...Comparison circuit, 12...Reference power supply.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 同期信号に応じてノコギリ波電圧を発生する電
圧発生回路と、該電圧発生回路からのノコギリ波
電圧が供給されるローパスフイルタと、該ローパ
スフイルタの出力電圧と基準電圧とを比較し、そ
の差に応じた出力電圧を発生する比較回路とから
成る同期検出回路。 A voltage generation circuit that generates a sawtooth wave voltage in response to a synchronization signal, a low-pass filter to which the sawtooth-wave voltage from the voltage generation circuit is supplied, and the output voltage of the low-pass filter and a reference voltage are compared, and the difference is calculated. A synchronization detection circuit consisting of a comparison circuit that generates a corresponding output voltage.
JP19561485U 1985-12-19 1985-12-19 Pending JPS62103369U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19561485U JPS62103369U (en) 1985-12-19 1985-12-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19561485U JPS62103369U (en) 1985-12-19 1985-12-19

Publications (1)

Publication Number Publication Date
JPS62103369U true JPS62103369U (en) 1987-07-01

Family

ID=31153659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19561485U Pending JPS62103369U (en) 1985-12-19 1985-12-19

Country Status (1)

Country Link
JP (1) JPS62103369U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56168477A (en) * 1980-05-29 1981-12-24 Toshiba Corp Broadcast signal detecting circuit
JPS57207489A (en) * 1981-06-16 1982-12-20 Matsushita Electric Ind Co Ltd Discriminator for vertical synchronizing frequency

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56168477A (en) * 1980-05-29 1981-12-24 Toshiba Corp Broadcast signal detecting circuit
JPS57207489A (en) * 1981-06-16 1982-12-20 Matsushita Electric Ind Co Ltd Discriminator for vertical synchronizing frequency

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