JPH0226392U - - Google Patents

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Publication number
JPH0226392U
JPH0226392U JP1988102971U JP10297188U JPH0226392U JP H0226392 U JPH0226392 U JP H0226392U JP 1988102971 U JP1988102971 U JP 1988102971U JP 10297188 U JP10297188 U JP 10297188U JP H0226392 U JPH0226392 U JP H0226392U
Authority
JP
Japan
Prior art keywords
circuit
motor
voltage
current value
power supply
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
JP1988102971U
Other languages
Japanese (ja)
Other versions
JP2523725Y2 (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 JP1988102971U priority Critical patent/JP2523725Y2/en
Publication of JPH0226392U publication Critical patent/JPH0226392U/ja
Application granted granted Critical
Publication of JP2523725Y2 publication Critical patent/JP2523725Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Control Of Direct Current Motors (AREA)

Description

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

第１図は、この考案を適用した直流電動機の駆
動回路の一実施例のブロツク図である。 １……可変定電圧電源回路、２，３……オペア
ンプ、４……電流値設定トランジスタ回路、５…
…定電流回路、６……抵抗分圧回路、７ａ……電
源端子、７ｂ……接地端子、７ｃ，７ｄ……外部
接続端子、Ｑ，ＱＣ，ＱＤ……トランジスタ、Ｍ
……直流電動機、Ｒ１，Ｒ２，Ｒ３，Ｒ４，Ｒ５
，Ｒｔ……抵抗。 FIG. 1 is a block diagram of an embodiment of a DC motor drive circuit to which this invention is applied. 1... Variable constant voltage power supply circuit, 2, 3... Operational amplifier, 4... Current value setting transistor circuit, 5...
... Constant current circuit, 6 ... Resistance voltage divider circuit, 7a ... Power supply terminal, 7b ... Ground terminal, 7c, 7d ... External connection terminal, Q, QC, QD ... Transistor, M
...DC motor, R 1 , R 2 , R 3 , R 4 , R 5
 , Rt...resistance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 直流電動機に直列に接続され、この直流電動機
に流れる電流を制御信号に応じて設定する電流値
設定回路と、この電流値設定回路と前記直流電動
機との接続点に接続され、この接続点の電圧値を
設定する、演算増幅回路を有する可変定電圧電源
回路とを備え、前記可変定電圧電源回路は、前記
演算増幅回路の一方の入力端子に設定される電圧
値により発生電圧値が制御され、かつ前記入力端
子が抵抗による分圧回路によつてバイアスされて
いて、前記電流値設定回路と前記可変定電圧電源
回路と前記分圧回路とが集積回路とされ、前記制
御信号の値を設定する第１の抵抗が前記集積回路
に対して外付けされ、前記発生電圧値を微調整す
るために前記入力端子に直接又は間接的に第２の
抵抗が外付けされることを特徴とする直流電動機
の駆動回路。 A current value setting circuit is connected in series with the DC motor and sets the current flowing through the DC motor according to a control signal, and the current value setting circuit is connected to a connection point between the current value setting circuit and the DC motor, and the voltage at this connection point is set. a variable constant voltage power supply circuit having an operational amplifier circuit for setting a value, the variable constant voltage power supply circuit having a generated voltage value controlled by a voltage value set to one input terminal of the operational amplifier circuit; and the input terminal is biased by a voltage dividing circuit including a resistor, the current value setting circuit, the variable constant voltage power supply circuit, and the voltage dividing circuit are integrated circuits, and the value of the control signal is set. A DC motor characterized in that a first resistor is externally attached to the integrated circuit, and a second resistor is externally attached directly or indirectly to the input terminal for finely adjusting the generated voltage value. drive circuit.
JP1988102971U 1988-08-03 1988-08-03 Drive circuit of DC motor Expired - Lifetime JP2523725Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988102971U JP2523725Y2 (en) 1988-08-03 1988-08-03 Drive circuit of DC motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988102971U JP2523725Y2 (en) 1988-08-03 1988-08-03 Drive circuit of DC motor

Publications (2)

Publication Number Publication Date
JPH0226392U true JPH0226392U (en) 1990-02-21
JP2523725Y2 JP2523725Y2 (en) 1997-01-29

Family

ID=31333366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988102971U Expired - Lifetime JP2523725Y2 (en) 1988-08-03 1988-08-03 Drive circuit of DC motor

Country Status (1)

Country Link
JP (1) JP2523725Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165681A (en) * 1982-03-26 1983-09-30 Sanyo Electric Co Ltd Speed control circuit for dc motor
JPS58207890A (en) * 1982-05-26 1983-12-03 Matsushita Electric Ind Co Ltd Speed controller for dc motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165681A (en) * 1982-03-26 1983-09-30 Sanyo Electric Co Ltd Speed control circuit for dc motor
JPS58207890A (en) * 1982-05-26 1983-12-03 Matsushita Electric Ind Co Ltd Speed controller for dc motor

Also Published As

Publication number Publication date
JP2523725Y2 (en) 1997-01-29

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