KR900009077Y1 - Electronic table clock having operating circuit both alarm and lamp - Google Patents

Electronic table clock having operating circuit both alarm and lamp Download PDF

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Publication number
KR900009077Y1
KR900009077Y1 KR2019870017805U KR870017805U KR900009077Y1 KR 900009077 Y1 KR900009077 Y1 KR 900009077Y1 KR 2019870017805 U KR2019870017805 U KR 2019870017805U KR 870017805 U KR870017805 U KR 870017805U KR 900009077 Y1 KR900009077 Y1 KR 900009077Y1
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KR
South Korea
Prior art keywords
alarm
transistor
clock
buzzer
circuit
Prior art date
Application number
KR2019870017805U
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Korean (ko)
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KR890009307U (en
Inventor
정필훈
Original Assignee
삼성시계 주식회사
김정상
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Priority to KR2019870017805U priority Critical patent/KR900009077Y1/en
Publication of KR890009307U publication Critical patent/KR890009307U/en
Application granted granted Critical
Publication of KR900009077Y1 publication Critical patent/KR900009077Y1/en

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/08—Housings
    • G04G17/086—Desktop clocks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G11/00—Producing optical signals at preselected times
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/021—Details
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/10—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes

Abstract

내용 없음.No content.

Description

알람발신과 램프점등이 동시에 작동되는 회로를 갖는 전자 탁상시계Electronic table clock with circuit for alarm and lamp lighting

제 1 도는 본 고안의 회로도.1 is a circuit diagram of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 램프점등회로 VA: 전원1: Lamp lighting circuit V A : Power

V, C : 가변콘덴서 BZ(BUZZER) : 부저V, C: Variable Capacitor BZ (BUZZER): Buzzer

X-TAL : 수정발진자 LED : 발광다이오드X-TAL: Crystal Oscillator LED: Light Emitting Diode

D : 다이오드 TR : 트랜지스터D: Diode TR: Transistor

SW : 알람 스위치 IC : 집적회로SW: Alarm Switch IC: Integrated Circuit

본 고안은 전자탁상시계에 관한 것으로, 특히 알람발신과 램프점등이 동시에 작동되는 회로를 갖는 전자 탁상시계에 관한 것이다.The present invention relates to an electronic desk clock, and more particularly, to an electronic desk clock having a circuit in which alarm transmission and lamp lighting are operated at the same time.

종래의 전자탁상시계는 기조정된 시간에 알람신호만 발신하게 되어 있어 청각장애자는 알람발신음을 듣지못하여 기조정된 시간을 확인할 수 없었으며, 특히 야간에는 설정된 시간에 알람이 발신되면 발신음을 중지 시키고자 할 때 시계의 위치를 파악하지 못하고 또한 시계의 알람발신 정지버튼을 감지할 수 없는 등의 불편한 점이 있었다.Conventional electronic clock is to send only the alarm signal at the preset time, the hearing impaired person can not check the preset time because they do not hear the alarm tone, especially when the alarm is sent at the set time at night stops the dial tone There was an inconvenience, such as not knowing the location of the clock and also can not detect the alarm stop button of the clock.

본 고안은 상기와 같은 불편한 점을 해소하기 위하여 안출된 것으로 첨부된 도면에 의해 상세히 설명하면 다음과 같다.The present invention is devised to solve the inconvenience as described above in detail by the accompanying drawings as follows.

전원(VA)에 연결된 수정발진자(X-TAL)의 시정수에 따라 주기적으로 신호를 발신하는 집적회로(IC)와 여기서 알람 신호후 전달받아 외부로 출력하는 부저(BZ)를 접속한 통상의 알람발신회로에 트랜지스터(TR)의 콜렉터측을 부저(BZ)를 통하여 전원(VA)의 "+"측에 연결하고 트랜지스터(TR)의 베이스측엔 압력신호부인 집적회로(IC)를 연결하며 트랜지스터(TR)의 콜렉터에는 전류의 역류를 방지하는 다이오드(D)와 알람이 발신될 때마다 발광다이오드(LED)를 집적회로(IC)에 접속한 램프점등회로(1)를 연결하여서된 전자 탁상시계이다.In general, an integrated circuit (IC) that periodically transmits a signal according to the time constant of the crystal oscillator (X-TAL) connected to the power supply (V A ) and a buzzer (BZ) that receives and outputs an alarm signal afterwards are output. Connect the collector side of the transistor TR to the "+" side of the power supply V A through the buzzer BZ and the integrated circuit IC, which is the pressure signal part, to the base side of the transistor TR. The collector of the transistor TR has an electronic tabletop connected by connecting a diode D which prevents the reverse flow of current and a lamp lighting circuit 1 connecting the light emitting diode LED to the integrated circuit IC each time an alarm is issued. It is a watch.

상기와 같이 구성된 본 고안의 작용 및 효과를 설명하면 다음과 같다. 집적회로(IC)에 전원이 인가되면 수정 발진자(X-TAL)에 의한 발진이 시작된다. 이때 알람스위치(SW)를 작동하면 알람출력단에서는 부저(BZ)를 통하여 출력이 발생하여 이 출력이 트랜지스터(TR) 베이스에 공급된다.Referring to the operation and effects of the present invention configured as described above are as follows. When power is applied to the integrated circuit IC, oscillation by the crystal oscillator X-TAL is started. At this time, when the alarm switch SW is operated, an output is generated at the alarm output terminal through the buzzer BZ, and this output is supplied to the transistor TR base.

또한 트랜지스터(TR)의 콜렉터에 전원과 연결된 부저는 알람신호를 발신하게 되며 이때 부저(BZ)에 역기전력이 발생하여 콜렉터에 접속된 발광다이오드(LED)에 전류가 흐르게 되어 알람발신과 동시에 점등되어 진다.In addition, the buzzer connected to the power supply of the collector of the transistor TR transmits an alarm signal. At this time, back electromotive force is generated in the buzzer BZ, and a current flows through the light emitting diode LED connected to the collector. .

발광다이오드(LED)와 트랜지스터 콜렉터 사이에 접속된 다이오드(D)는 전류의 역류를 방지하는 역할을 하게된다.The diode D connected between the light emitting diode LED and the transistor collector serves to prevent the reverse flow of the current.

상기와 같은 작용을 함으로서, 본 고안은 알람발신과 동시에 발광다이오드(LED)가 점등되어 청각장애자가 설정된 시간을 램프의 점등으로 시각적으로 확인할 수 있고 또한 야간에도 시계의 위치를 쉽게 파악할 수 있을 뿐만 아니라 시계의 알람신호를 중지시키고자 할 경우에는 시계의 알람신호 정지버튼을 감지하여 누를 수 있어 알람신호를 용이하게 중지시킬 수 있는 유용한 고안인 것이다.By acting as described above, the present invention can visually confirm the time set by the hearing impaired by the light-emitting diode (LED) is turned on at the same time as the alarm, and also can easily determine the position of the clock at night. If you want to stop the alarm signal of the clock is a useful design that can easily stop the alarm signal can be detected by pressing the alarm signal stop button of the clock.

Claims (1)

전원(VA) 및 집적회로(IC), 부저(BZ) 및 수정발진자(X-TAL)로 이루어진 통상의 알람 발신 회로를 갖는 탁상시계에 있어서, 트랜지스터(TR)의 에미터측을 전원(VA)의 "-"측에 연결하고, 트랜지스터(TR)의 베이스 측엔 입력신호부를 연결하고, 상기 트랜지스터(TR)의 콜렉터에는 전류의 역류를 방지하는 다이오드(D)와 알람이 발신될 때마다 부저(BZ)의 역기전력을 이용하여 점등되는 발광다이오드(LED)를 집적 회로(IC)에 접속한 회로를 구성함으로서 알람발신과 램프점등이 동시에 작동되도록 이루어진 것을 특징으로하는 전자탁상시계.In a table clock having a conventional alarm originating circuit consisting of a power supply (V A ) and an integrated circuit (IC), a buzzer (BZ), and a crystal oscillator (X-TAL), the emitter side of the transistor TR is connected to a power supply (V A). ) Is connected to the "-" side of the transistor TR, and an input signal portion is connected to the base side of the transistor TR, and the collector of the transistor TR prevents a reverse flow of current and a buzzer ( An electronic desk clock comprising alarm and lamp lighting operated simultaneously by constructing a circuit in which a light emitting diode (LED), which is turned on by using a counter electromotive force of BZ, is connected to an integrated circuit (IC).
KR2019870017805U 1987-10-20 1987-10-20 Electronic table clock having operating circuit both alarm and lamp KR900009077Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870017805U KR900009077Y1 (en) 1987-10-20 1987-10-20 Electronic table clock having operating circuit both alarm and lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870017805U KR900009077Y1 (en) 1987-10-20 1987-10-20 Electronic table clock having operating circuit both alarm and lamp

Publications (2)

Publication Number Publication Date
KR890009307U KR890009307U (en) 1989-05-30
KR900009077Y1 true KR900009077Y1 (en) 1990-09-29

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Application Number Title Priority Date Filing Date
KR2019870017805U KR900009077Y1 (en) 1987-10-20 1987-10-20 Electronic table clock having operating circuit both alarm and lamp

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KR890009307U (en) 1989-05-30

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