JPS6125104Y2 - - Google Patents

Info

Publication number
JPS6125104Y2
JPS6125104Y2 JP16224080U JP16224080U JPS6125104Y2 JP S6125104 Y2 JPS6125104 Y2 JP S6125104Y2 JP 16224080 U JP16224080 U JP 16224080U JP 16224080 U JP16224080 U JP 16224080U JP S6125104 Y2 JPS6125104 Y2 JP S6125104Y2
Authority
JP
Japan
Prior art keywords
motor
switch
control circuit
voltage
diode
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.)
Expired
Application number
JP16224080U
Other languages
Japanese (ja)
Other versions
JPS5787386U (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 JP16224080U priority Critical patent/JPS6125104Y2/ja
Publication of JPS5787386U publication Critical patent/JPS5787386U/ja
Application granted granted Critical
Publication of JPS6125104Y2 publication Critical patent/JPS6125104Y2/ja
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 本考案はテープレコーダにおける電子カウンタ
ーの起動パルス発生装置に関し、その目的とする
ところは簡単な回路構成による安価な装置を提供
することにある。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a starting pulse generating device for an electronic counter in a tape recorder, and its purpose is to provide an inexpensive device with a simple circuit configuration.

以下、本考案の1実施例について図面を用いて
詳細に説明する。
Hereinafter, one embodiment of the present invention will be described in detail using the drawings.

1は端子,,,,′を備えた直流モ
ータ制御回路、2は前記端子,間に接続され
た直流モータ、3は抵抗、4はダイオードでアノ
ードを直流モータ2のマイナス側に接続し、カソ
ードはスイツチ5のb接点を介して接地されてい
る。6は切換スイツチで、a側に接続されている
ときは録音・再生操作がなされており、b側に接
続されているときは、早送り・巻戻し操作が行な
われている。また、a接点は前記端子′に接続
されており、b接点は前記端子に接続されてい
る。
1 is a DC motor control circuit equipped with terminals, ,,,', 2 is a DC motor connected between the terminals, 3 is a resistor, 4 is a diode whose anode is connected to the negative side of the DC motor 2, and the cathode is connected to the negative side of the DC motor 2. is grounded via the b contact of switch 5. Reference numeral 6 denotes a changeover switch. When connected to the a side, recording and playback operations are performed, and when connected to the b side, fast forwarding and rewinding operations are performed. Further, the a contact is connected to the terminal', and the b contact is connected to the terminal.

上述のような構成の電子カウンターの起動パル
ス発生装置において、まず早送り・巻戻し動作に
ついて述べると、切換スイツチ6はb側に接続さ
れており、モータ駆動電源(図示せず)からの+
B電圧が直流モータ制御回路1に供給されるが、
早送り・巻戻し動作時は、+B電圧が図中破線で
示すように制御回路1中をバイパスして、直接直
流モータ2に加わるように構成されており、この
ため+B電圧は制御回路1によつて制御されるこ
となく、直流モータ2を駆動するために直流モー
タ2の回転数が高くなり、早送り・巻戻し動作の
状態となる。また、このときスイツチ5がたとえ
ばa側に接続されていると、点で電圧は入力端
子7から入力されると所定の電圧によつて所望の
電圧値Voを有している。また、b側に接続され
ていると、点での電圧は接地電圧(電圧ゼロ)
となる。このようにスイツチ5をaまたはb側に
接続したときの、第2図に示すように点の電圧
Voまたは電圧ゼロという電圧差を有するパルス
が検出され、このパルスを電子カウンター(図示
せず)の起動パルスとして用い、電子カウンター
を起動せしめるように成したものである。
In the starting pulse generator for an electronic counter configured as described above, first of all, the fast forward/rewind operation will be described.The changeover switch 6 is connected to the b side, and the +
B voltage is supplied to the DC motor control circuit 1,
During fast forwarding and rewinding operations, the +B voltage bypasses the control circuit 1 and is directly applied to the DC motor 2, as shown by the broken line in the figure. In order to drive the DC motor 2 without being controlled, the rotational speed of the DC motor 2 increases, resulting in a state of fast forwarding/rewinding operation. Further, at this time, if the switch 5 is connected to the a side, for example, the voltage at the point when inputted from the input terminal 7 has a desired voltage value Vo due to a predetermined voltage. Also, if it is connected to the b side, the voltage at the point is the ground voltage (voltage zero)
becomes. When switch 5 is connected to side a or b in this way, the voltage at the point is as shown in Figure 2.
A pulse having a voltage difference of Vo or voltage zero is detected and this pulse is used as a starting pulse for an electronic counter (not shown) to start the electronic counter.

上述のような本考案の起動パルス発生装置で
は、直流モータのマイナス側に直列にダイオード
とスイツチとを配設するだけで、電子カウンター
の起動パルスを発生することができ、簡単な回路
構成によつて確実な動作をする起動パルス発生装
置を提供するという実用的効果は大である。
The starting pulse generator of the present invention as described above can generate a starting pulse for an electronic counter by simply arranging a diode and a switch in series on the negative side of a DC motor, and the simple circuit configuration The practical effect of providing a starting pulse generator that operates reliably is great.

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

図面はいずれも本考案の1実施例を示し、第1
図はブロツク図、第2図は動作を説明するための
図である。 1……直流モータ制御回路、2……直流モー
タ、3……抵抗、4……ダイオード、5……スイ
ツチ、6……切換スイツチ、7……入力端子、
……接続点。
Each of the drawings shows one embodiment of the present invention.
The figure is a block diagram, and FIG. 2 is a diagram for explaining the operation. 1... DC motor control circuit, 2... DC motor, 3... Resistor, 4... Diode, 5... Switch, 6... Changeover switch, 7... Input terminal,
...connection point.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 直流モータ制御回路と、該直流モータ制御回路
によつて制御される直流モータと、該直流モータ
の一端子とアースとの間にダイオードと早送り・
巻戻しを切換えるためのスイツチとを直列に配置
し、該スイツチの一接点と前記ダイオードとの接
続点に所定の電圧が入力される入力端子が抵抗を
介して接続されていることを特徴とするテープレ
コーダにおける電子カウンターの起動パルス発生
装置。
A DC motor control circuit, a DC motor controlled by the DC motor control circuit, and a diode and a fast-forwarding circuit between one terminal of the DC motor and ground.
A switch for switching rewinding is arranged in series, and an input terminal to which a predetermined voltage is input is connected to one contact of the switch and a connection point of the diode through a resistor. A starting pulse generator for an electronic counter in a tape recorder.
JP16224080U 1980-11-13 1980-11-13 Expired JPS6125104Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16224080U JPS6125104Y2 (en) 1980-11-13 1980-11-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16224080U JPS6125104Y2 (en) 1980-11-13 1980-11-13

Publications (2)

Publication Number Publication Date
JPS5787386U JPS5787386U (en) 1982-05-29
JPS6125104Y2 true JPS6125104Y2 (en) 1986-07-28

Family

ID=29521121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16224080U Expired JPS6125104Y2 (en) 1980-11-13 1980-11-13

Country Status (1)

Country Link
JP (1) JPS6125104Y2 (en)

Also Published As

Publication number Publication date
JPS5787386U (en) 1982-05-29

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