JPH0193808U - - Google Patents

Info

Publication number
JPH0193808U
JPH0193808U JP18906687U JP18906687U JPH0193808U JP H0193808 U JPH0193808 U JP H0193808U JP 18906687 U JP18906687 U JP 18906687U JP 18906687 U JP18906687 U JP 18906687U JP H0193808 U JPH0193808 U JP H0193808U
Authority
JP
Japan
Prior art keywords
oscillation
resonant circuit
circuit
capacitor
coil
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
JP18906687U
Other languages
Japanese (ja)
Other versions
JPH0648971Y2 (en
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 JP1987189066U priority Critical patent/JPH0648971Y2/en
Priority to EP88120656A priority patent/EP0320015B1/en
Priority to DE3850753T priority patent/DE3850753T2/en
Priority to AT88120656T priority patent/ATE108965T1/en
Publication of JPH0193808U publication Critical patent/JPH0193808U/ja
Priority to US08/068,263 priority patent/US5313198A/en
Application granted granted Critical
Publication of JPH0648971Y2 publication Critical patent/JPH0648971Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Machine Tool Sensing Apparatuses (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

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による発振回路の回
路図、第２図は発振開始時の各部の波形を示す波
形図、第３図ａ〜ｄは発振回路の電流方向を示す
図、第４図は発振制御信号に対する発振状態を示
す図、第５図は本実施例による発振回路を適用し
たデータ通信装置の一例を示すブロツク図、第６
図は従来の発振回路の一例を示す回路図、第７図
はその制御信号に対する発振出力を示す波形図で
ある。 １……共振回路、１０……発振回路、Ｌ１……
コイル、Ｃ１，Ｃ２……コンデンサ、Ｔｒ１……
トランジスタ。 Fig. 1 is a circuit diagram of an oscillation circuit according to an embodiment of the present invention, Fig. 2 is a waveform diagram showing waveforms of various parts at the start of oscillation, Figs. FIG. 4 is a diagram showing an oscillation state in response to an oscillation control signal, FIG. 5 is a block diagram showing an example of a data communication device to which the oscillation circuit according to the present embodiment is applied, and FIG.
The figure is a circuit diagram showing an example of a conventional oscillation circuit, and FIG. 7 is a waveform diagram showing the oscillation output in response to the control signal. 1...Resonance circuit, 10...Oscillation circuit, L1...
Coil, C1, C2... Capacitor, Tr1...
transistor.

Claims (1)

【実用新案登録請求の範囲】 コイル及びコンデンサから成る並列の共振回路
と、 前記並列共振回路の一端にコレクタが接続され
共振回路の共振用素子に設けられる中点からベー
スにフイードバツクされたトランジスタと、を有
し、発振の断続によつて信号を伝送するデータ通
信装置に用いられる発振回路において、 前記共振回路のコイル及びコンデンサの間に該
共振回路を開閉するスイツチング素子を有し、 前記スイツチング素子によつて発振を断続させ
るようにしたことを特徴とするデータ通信装置の
発振回路。[Claims for Utility Model Registration] A parallel resonant circuit consisting of a coil and a capacitor; a transistor whose collector is connected to one end of the parallel resonant circuit and which is provided as a resonant element of the resonant circuit and is fed back from a midpoint to a base; an oscillation circuit used in a data communication device that transmits signals by intermittent oscillation, comprising a switching element between a coil and a capacitor of the resonant circuit for opening and closing the resonant circuit; An oscillation circuit for a data communication device, characterized in that the oscillation is intermittent.
JP1987189066U 1987-12-09 1987-12-11 Oscillation circuit of data communication device Expired - Lifetime JPH0648971Y2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1987189066U JPH0648971Y2 (en) 1987-12-11 1987-12-11 Oscillation circuit of data communication device
EP88120656A EP0320015B1 (en) 1987-12-09 1988-12-09 Inductive data communicating apparatus
DE3850753T DE3850753T2 (en) 1987-12-09 1988-12-09 Inductive data transmission system.
AT88120656T ATE108965T1 (en) 1987-12-09 1988-12-09 INDUCTIVE DATA TRANSMISSION SYSTEM.
US08/068,263 US5313198A (en) 1987-12-09 1993-05-28 Data communication apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987189066U JPH0648971Y2 (en) 1987-12-11 1987-12-11 Oscillation circuit of data communication device

Publications (2)

Publication Number Publication Date
JPH0193808U true JPH0193808U (en) 1989-06-20
JPH0648971Y2 JPH0648971Y2 (en) 1994-12-12

Family

ID=31480123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987189066U Expired - Lifetime JPH0648971Y2 (en) 1987-12-09 1987-12-11 Oscillation circuit of data communication device

Country Status (1)

Country Link
JP (1) JPH0648971Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002064334A (en) * 2000-06-24 2002-02-28 Atmel Germany Gmbh Apparatus and method for oscillation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50110754A (en) * 1974-02-09 1975-09-01
JPS5531311U (en) * 1978-08-18 1980-02-29

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50110754A (en) * 1974-02-09 1975-09-01
JPS5531311U (en) * 1978-08-18 1980-02-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002064334A (en) * 2000-06-24 2002-02-28 Atmel Germany Gmbh Apparatus and method for oscillation

Also Published As

Publication number Publication date
JPH0648971Y2 (en) 1994-12-12

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