KR900009480Y1 - Control circuit for motor - Google Patents

Control circuit for motor Download PDF

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Publication number
KR900009480Y1
KR900009480Y1 KR2019860012980U KR860012980U KR900009480Y1 KR 900009480 Y1 KR900009480 Y1 KR 900009480Y1 KR 2019860012980 U KR2019860012980 U KR 2019860012980U KR 860012980 U KR860012980 U KR 860012980U KR 900009480 Y1 KR900009480 Y1 KR 900009480Y1
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KR
South Korea
Prior art keywords
motor
control circuit
leaf switch
base
resistor
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KR2019860012980U
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Korean (ko)
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KR880005368U (en
Inventor
김용구
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대우전자 주식회사
김용원
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Priority to KR2019860012980U priority Critical patent/KR900009480Y1/en
Publication of KR880005368U publication Critical patent/KR880005368U/en
Application granted granted Critical
Publication of KR900009480Y1 publication Critical patent/KR900009480Y1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/921—Timer or time delay means

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

내용 없음.No content.

Description

지연회로를 이용한 모터콘트롤 회로Motor Control Circuit Using Delay Circuit

제 1 도는 종래 모터콘트롤 회로도.1 is a conventional motor control circuit diagram.

제 2 도는 본 고안의 모터콘트롤 회로도.2 is a motor control circuit diagram of the present invention.

제 3 도는 종래 모터콘트롤시의 파형도.3 is a waveform diagram of a conventional motor control.

제 4 도는 본 고안 모터콘트롤 회로도의 파형도.4 is a waveform diagram of a circuit diagram of the present invention.

본 고안은 라디오 수신기능을 가진 모터가 붙은 음향기기(예 : 카셋트라디오)에서 사용할 수 있는 모터콘트롤회로에 관한 것으로서, 특히 모터를 구동시키는 리프스위치의 수명을 연장시키고, 리프스위치의 동작시 발생하는 스파크 현상이 AM안테나에 유기되는 것을 방지하기 위하여 연구한 지연회로를 이용한 모터콘트롤 회로에 관한깃이다.The present invention relates to a motor control circuit that can be used in an acoustic device (eg, cassette radio) with a motor having a radio reception function, and in particular, extends the life of a leaf switch for driving a motor, This is a motor control circuit using a delay circuit studied to prevent spark phenomenon from being induced in AM antenna.

통상적으로 모터가 장치된 각종 음향기기에서 모터콘트롤방식은 제 1 도와 같이 전원전압(B)을 리프스위치를 통하여 직접모터에 공급하므로서, 리프스위치에서 기계적인 마찰로 인하여 스파크 현상이 일어나 리프스위치의 수명이 길지 못하였으며, 또한 이 스파크 현상이 미약한 신호를 받아드리는 AM안테나에 유기되어 심한 잡음이 발생하는 단점이 있었다.In general, the motor control method in various acoustic devices equipped with a motor supplies the power voltage B directly to the motor through the leaf switch as shown in FIG. 1, so that spark phenomenon occurs due to mechanical friction in the leaf switch. This was not long, and there was a disadvantage in that the spark phenomenon was induced in the AM antenna that receives the weak signal, causing severe noise.

본 고안은 상기와 같은 단점을 개선하기 위하여 안출한 것으로서, 리프스위치를 온 하여도 즉시 전류가 모터에 인가되지 않고, 일정시간동안 지연이됨으로해서 리프스위치에서 스파크현상이 발생하지 않도록 하여, 상기의 종전 단점을 해결한 것으로서, 이하 첨부도면에 의하여 상세히 설명하면 다음과 같다.The present invention is devised to improve the above disadvantages, the current is not immediately applied to the motor even if the leaf switch is turned on, the delay occurs for a certain time so that the spark does not occur in the leaf switch, As a solution to the previous disadvantage, described in detail by the accompanying drawings as follows.

본 고안은 모터동작 전원인 B입력단에 PNP형 트랜지스터(TR1)의 에미터를 연결하고 콜렉터는 모터(M)에 연결하였으며, 베이스는 저항(R2)를 통해 리프스위치(S2)와 연결하였다.The present invention connects the emitter of the PNP transistor (TR 1 ) to the B input terminal, which is the motor operating power, the collector is connected to the motor (M), and the base is connected to the leaf switch (S 2 ) through the resistor (R 2 ). It was.

또한 (TR1)의 베이스와 에미터 사이에는 저항(R1)과 콘덴서(C1)를 병렬로 연결하였다.In addition, a resistor (R 1 ) and a capacitor (C 1 ) were connected in parallel between the base and the emitter of (TR 1 ).

이와같이 구성된 본 고안의 회로에서 작용효과는 다음과 같다.In the circuit of the present invention configured as described above, the effects are as follows.

즉, 모터를 구동시키기위하여 리프스위치(S2)를 온 시키면 트랜지스터 구동전압은 바로 베이스에 인가되지 못하고 순간적으로 콘덴서(C1)에 충전되므로(TR1)의 에미터와 베이스간에는 바이어스 전압(VBE)이 안걸리므로(TR1)은 동작을 하지 못하고, 모터(M)도 동작을 하지 못한다.That is, when the leaf switch S 2 is turned on to drive the motor, the transistor driving voltage is not immediately applied to the base and is instantaneously charged in the capacitor C 1 , so that the bias voltage VBE between the emitter and the base of TR 1 is increased. TR 1 does not work, and the motor M does not operate either.

이후 일정시간이 흘러 지연용 콘덴서(C1)가 충전이 끝나는 순간에는 (TR1)이 동작을 하여 에미터와 베이스간의 전압이 걸려 모터(M)는 정상동작을 한다.After a certain period of time, when the charge of the delay capacitor (C 1 ) is finished, (TR 1 ) is operated to apply a voltage between the emitter and the base, the motor (M) is operating normally.

이때 저항(R2)의 역할은 모터동작시 최대전류에서(TR1)의 전류 증폭율로 나눈만큼만 (TR1)의 베이스에 공급하기 위한 베이스전류 제한용 저항이다.At this time, the role of the resistor R 2 is a base current limiting resistor for supplying to the base of the TR 1 only by dividing by the current amplification ratio of the maximum current TR 1 at the motor operation.

저항(R1)은 리프스위치(S2)를 껐을 경우 콘덴서(C4)의 충전전압을 방전하기 위한 저항이다.The resistor R 1 is a resistor for discharging the charging voltage of the capacitor C 4 when the leaf switch S 2 is turned off.

이상과 같이 본 고안은 모터(M)을 동작시키기 위하여, 리프스위치(S2)를 연결하여도 전류가 즉시 모터(M)에 인가되지 못하고, 콘덴서(C1)의 충전시간만큼 지연되어있다가 공급되므로 리프스위치(S2)의 기계적인 접촉시에는 절대 스파크가 발생되지 않는다.As described above, in order to operate the motor M, even if the leaf switch S 2 is connected, the current is not immediately applied to the motor M, but is delayed by the charging time of the capacitor C 1 . As it is supplied, sparks are never generated during mechanical contact of the leaf switch S 2 .

따라서 리프스위치의 수명율 종전보다 수십-수백배 연장시킬수가 있으며, AM안테나로 유기되는 팝노이즈도 없어지는 효과가 있는 것이다.Therefore, the lifespan of the leaf switch can be extended by several tens to hundreds of times, and the pop noise induced by the AM antenna is also eliminated.

Claims (1)

모터동작 전원인 B입력단에 PNP형 트랜지스터(TR1)의 에미터를 연결하고, 콜렉터는 모터(M)에 연결하며, 베이스는 저항(R2)를 통해 리프스위치(S2)와 연결하였으며, (TR1)의 베이스와 콜렉터 사이에는 저항(R1)과 콘덴서(C4)를 병렬로 연결하여서된, 지연회로를 이용한 모터콘트롤 회로.The emitter of the PNP transistor (TR 1 ) is connected to the B input terminal, which is the motor operating power, the collector is connected to the motor (M), and the base is connected to the leaf switch (S 2 ) through the resistor (R 2 ), A motor control circuit using a delay circuit by connecting a resistor (R 1 ) and a capacitor (C 4 ) in parallel between the base and the collector of TR 1 .
KR2019860012980U 1986-08-26 1986-08-26 Control circuit for motor KR900009480Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860012980U KR900009480Y1 (en) 1986-08-26 1986-08-26 Control circuit for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860012980U KR900009480Y1 (en) 1986-08-26 1986-08-26 Control circuit for motor

Publications (2)

Publication Number Publication Date
KR880005368U KR880005368U (en) 1988-05-12
KR900009480Y1 true KR900009480Y1 (en) 1990-10-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019860012980U KR900009480Y1 (en) 1986-08-26 1986-08-26 Control circuit for motor

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KR880005368U (en) 1988-05-12

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