JPS5972893U - oscillation circuit - Google Patents

oscillation circuit

Info

Publication number
JPS5972893U
JPS5972893U JP1983088426U JP8842683U JPS5972893U JP S5972893 U JPS5972893 U JP S5972893U JP 1983088426 U JP1983088426 U JP 1983088426U JP 8842683 U JP8842683 U JP 8842683U JP S5972893 U JPS5972893 U JP S5972893U
Authority
JP
Japan
Prior art keywords
differential amplifier
oscillation circuit
current
voltage
current source
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
JP1983088426U
Other languages
Japanese (ja)
Inventor
深谷 弘一
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP1983088426U priority Critical patent/JPS5972893U/en
Publication of JPS5972893U publication Critical patent/JPS5972893U/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第1図は一般的なモーター駆動回路の一例を示す回路図
、第2図は従来方式及び本考案における波形図、第3図
は本考案を説明するためのブロック図、第4図は本考案
の一実施例を示す発振回路図である。 1・・・発振回路、2. 6. 6’、  6″、35
゜34.40・・・コンデンサ、7・・・増幅器、51
 5’ 15″・・・ダイオード、3. 4. 4’、
  4″・・・位置検出トランス、8.8’、8″・・
・励磁巻線、31゜32.37.39・・・トランジス
タ、36・・・位置検出トランス1次側巻線、41・・
・比較増幅器、42・・・基準電圧源。
Figure 1 is a circuit diagram showing an example of a general motor drive circuit, Figure 2 is a waveform diagram in the conventional method and the present invention, Figure 3 is a block diagram for explaining the present invention, and Figure 4 is the present invention. FIG. 2 is an oscillation circuit diagram showing one embodiment of the present invention. 1... oscillation circuit, 2. 6. 6', 6'', 35
゜34.40...Capacitor, 7...Amplifier, 51
5'15''...Diode, 3. 4. 4',
4″...Position detection transformer, 8.8', 8″...
・Excitation winding, 31° 32.37.39...Transistor, 36...Position detection transformer primary winding, 41...
- Comparison amplifier, 42... reference voltage source.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 差動増幅器、該差動増幅器へ動作電流を供給する電流源
および前記差動増幅器の入出力間に設けられた正帰還回
路を有する発振部と、該発振部の出力信号の振幅に応じ
た電圧を得る手段と、該電圧を基準電圧と比較して前記
電流源の電流を制御する比較器とを備えることを特徴と
する発振回路。
a differential amplifier, a current source that supplies an operating current to the differential amplifier, an oscillation section having a positive feedback circuit provided between the input and output of the differential amplifier, and a voltage according to the amplitude of an output signal of the oscillation section. and a comparator for comparing the voltage with a reference voltage to control the current of the current source.
JP1983088426U 1983-06-09 1983-06-09 oscillation circuit Pending JPS5972893U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1983088426U JPS5972893U (en) 1983-06-09 1983-06-09 oscillation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1983088426U JPS5972893U (en) 1983-06-09 1983-06-09 oscillation circuit

Publications (1)

Publication Number Publication Date
JPS5972893U true JPS5972893U (en) 1984-05-17

Family

ID=30218337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1983088426U Pending JPS5972893U (en) 1983-06-09 1983-06-09 oscillation circuit

Country Status (1)

Country Link
JP (1) JPS5972893U (en)

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