KR940007122Y1 - Telephone transceiver - Google Patents

Telephone transceiver Download PDF

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Publication number
KR940007122Y1
KR940007122Y1 KR2019890015685U KR890015685U KR940007122Y1 KR 940007122 Y1 KR940007122 Y1 KR 940007122Y1 KR 2019890015685 U KR2019890015685 U KR 2019890015685U KR 890015685 U KR890015685 U KR 890015685U KR 940007122 Y1 KR940007122 Y1 KR 940007122Y1
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South Korea
Prior art keywords
resistor
capacitor
transistor
handset
collector
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KR2019890015685U
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Korean (ko)
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KR910008193U (en
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박기진
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금성통신 주식회사
임종염
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H04M1/585—Anti-side-tone circuits implemented without inductive element

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)

Abstract

내용 없음.No content.

Description

송수화회로Handset circuit

제1도는 종래의 송수화 회로도.1 is a conventional handset circuit diagram.

제2도는 본 고안의 송수화 회로도.2 is a handset circuit diagram of the present invention.

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

TX : 송화기 RX : 수화기TX: Handset RX: Handset

L1, L2 : 전화라인 TR1-TR3 : 트랜지스터L1, L2: Telephone line TR1-TR3: Transistor

D1-D3 : 다이오드배열 C1-C8 : 콘덴서D1-D3: Diode Array C1-C8: Capacitor

R1-R12 : 저항R1-R12: Resistance

본 고안은 전화기의 송수화회로에 관한 것으로 특히, 음성집적소자를 사용하지 않고 간단하며 경제적인 회로로 어떤 송수화회로에도 응용이 가능하도록 한 송수화회로에 관한 것이다.The present invention relates to a handset circuit of a telephone, and more particularly, to a handset circuit that can be applied to any handset circuit with a simple and economical circuit without using a voice integrated device.

일반적으로 종래에 사용되는 송수화회로는 음성집적소자를 사용하여 회로를 구성하였는데, 이를 첨부된 도면을 참조해 설명하면 다음과 같다.In general, the handset circuit used in the prior art has a circuit using a voice integrated device, which will be described below with reference to the accompanying drawings.

제1도는 종래의 송수화회로도로써 이에 도시된 바와같이 송화기(TX)가 콘덴서(C1)를 통해 음성집적소자(IC1)의 핀(P10)에 연결됨과 아울러 저항(R13)을 통해서는 상기 음성집적소자(IC1)의 핀(P16) 및 전화라인(L1)과 접속된 저항(R1)에 접속되고, 그 음성집적소자(IC1)의 핀(P3)이 저항(R6)을 통한 뒤 저항(R2-R5, R9), 콘덴서(C6) 및 제너다이오드(Z.D)로 구성된 측음방지부(1)를 통해서 음성집적소자(IC1)의 핀(P2)에 연결된 전화라인(L1)에 연결됨과 아을러 콘덴서(C7-C9), 저항(R8),(R10)으로 구성된 수화이득 조절부(2)를 통해서는 핀(P13)에 연결되며, 그의 핀(P15)이 콘덴서(C10)를 통해 수화기(RX)에 연결됨과 아울러 저항(R11)을 통한후 콘덴서(C3-C5) 및 저항(R14),(R15)으로 구성된 송화이득조절부(3)를 통해서 음성집적소자(IC1)에 연결된 전화라인(L2)에 연결되어 구성되었으며, 여기서 미설명 저항(R12) 및 콘덴서(C2)는 송화입력 이득조절용이다.FIG. 1 is a conventional handset circuit diagram, in which the transmitter TX is connected to the pin P10 of the voice integrated device IC1 through the capacitor C1 and the voice integrated through the resistor R13 as shown therein. It is connected to the pin P16 of the element IC1 and the resistor R1 connected to the telephone line L1, and the pin P3 of the voice integrated element IC1 passes through the resistor R6 and then the resistor R2-. Through the side noise prevention part 1 consisting of R5, R9, a condenser C6 and a zener diode ZD, it is connected to a telephone line L1 connected to the pin P2 of the voice integrated device IC1 and an aller capacitor ( It is connected to the pin P13 through the hydration gain control unit 2 composed of C7-C9, resistors R8, and R10, and its pin P15 is connected to the receiver RX through the condenser C10. Connected to the telephone line (L2) connected to the voice integrated device (IC1) through the sound gain control unit (3) consisting of a capacitor (C3-C5) and a resistor (R14), (R15) through the resistor (R11). Connected and configured, where US Description The resistor R12 and the condenser C2 are for controlling the talk input gain.

이와같이 구성된 종래 송수화회로의 작용동작을 설명하면 다음과 같다.Referring to the operation of the conventional handset circuit configured as described above are as follows.

먼저 사용자가 말을하여 송화시에는 송화기(TX)에서 음성집적소자(IC1)에 입력되고, 그 음성집적소자(IC1)에서 이득조절이 되어 증폭된 신호가 저항(R6)을 통한후 측음방지부(1)를 통해서 전화라인(L1)으로 전송이 된다. 또 수화시에는 전화라인(L1)을 통해 입력되는 신호가 측음방지부(1)를 통한후 수화이득조절부(2)를 다시통해 음성집적소자(IC1)에 입력되어 적당한 크기로 조정된후 콘덴서(C10)를 통해 수화기(RX)에서 음성신호로 변환되어 사용자가 들을 수 있게 된다.First, when the user speaks and talks, the signal is inputted from the transmitter TX to the voice integrated device IC1, and the gain amplified by the voice integrated device IC1 is amplified through the resistor R6. It is transmitted to the telephone line L1 through (1). In addition, during sign language, the signal input through the telephone line L1 is input to the voice integrated device IC1 through the sign language gain control unit 2 and then adjusted to an appropriate size through the side sound prevention unit 1 and then condensed. Through the C10, the handset RX is converted into a voice signal so that the user can hear it.

그러나 이상에서 설명한 바와같은 종래 송수화회로는 음성집적소자를 사용하는 복잡한 회로로 인해 가격이 비싸고 송수화 특성을 조정하기가 어려운 문제점이 있다.However, the conventional handset circuit as described above has a problem that it is expensive and difficult to adjust the handset characteristics due to the complicated circuit using the voice integrated device.

본 고안은 이와같은 종래 송수화회로의 문제점을 감안하여 음성집적소자를 사용하지 않아 가격면에서 유리하고 간단한 구성의 송수화회로를 안출한 것으로, 이를 첨부한 도면을 참조해 상세히 설명하면 다음과 같다.The present invention devised a handset circuit having an advantageous and simple structure in terms of price without using a voice integrated device in view of the problems of the conventional handset circuit, which will be described in detail with reference to the accompanying drawings. .

제2도는 본 고안 송수화 회로도로써 이에 도시한 바와같이 송화기(TX)가 콘덴서(C8) 및 저항(R9)을 통해서 콜렉터와 베이스가 콘덴서(C4) 및 저항(R8)의 병렬접속으로 연결된 트랜지스터(TR2)의 베이스에 연결하고, 저항(R10)을 통해서는 콘덴서(C6) 및 다이오드 배열(D1-D3)을 접속한뒤 수화기(RX)에 연결하며, 상기 트랜지스터(TR2)의 콜렉터를 저항(R6)을 통해 상기 다이오드 배열(D1-D3)과 수화기(RX)의 접속점에 접속함과 아울러 콘덴서(C3)를 통해서는 콘덴서(C1) 및 저항(R1),(R2)을 콜렉터와 베이스 사이에 접속한 트랜지스터(TR1)의 베이스에 연결한 뒤 그 트랜지스터(TR1)의 콜렉터를 전화라인(L1)에 연결함과 아울러 저항(R3)을 통해 콘덴서(C2)에 접속하고, 그 접속점을 저항(R4)을 통해 상기 트랜지스터(TR1)의 에미터 및 저항(R5)을 다시 통해서 상기 수화기(RX)와 다이오드 배열(D1-D3)의 접속점에 접속한 후 상기 콘덴서(C2)를 콘덴서(C5) 및 저항(R11)을 베이스와 콜렉터 사이에 병렬접속한 트랜지스터(TR3)의 베이스에 접속하여 그의 콜렉터는 상기 수화기(RX)에 연결하고, 그의 에미터는 저항(R12)을 통해 전화라인(L2)에 연결하여 구성하였다.2 is a schematic diagram of a handset circuit of the present invention. As shown in FIG. 2, a transistor in which a collector and a base are connected by a parallel connection of a capacitor C4 and a resistor R8 through a capacitor C8 and a resistor R9 ( Connect to the base of TR2, connect capacitor C6 and diode array D1-D3 through resistor R10, connect to handset RX, and connect the collector of transistor TR2 to resistor R6. Is connected to the connection point of the diode array (D1-D3) and the receiver (RX), and the capacitor (C1) and resistors (R1) and (R2) are connected between the collector and the base through the capacitor (C3). After connecting to the base of one transistor TR1, the collector of the transistor TR1 is connected to the telephone line L1, connected to the capacitor C2 through the resistor R3, and the connection point is connected to the resistor R4. Through the emitter and resistor R5 of the transistor TR1 through the receiver RX and diode The capacitor C2 is connected to the base of the transistor TR3 in which the capacitor C2 is connected to the capacitor C5 and the resistor R11 in parallel between the base and the collector, and the collector thereof is connected to the receiver. (RX), and its emitter was configured by connecting to the telephone line (L2) through a resistor (R12).

이와같이 구성한 본 고안 송수화회로의 작용 및 효과를 설명하면 다음과 같다.Referring to the operation and effect of the invention handset circuit configured as described above are as follows.

먼저 송화시에는 송화기(TX)에서 음성이 전기적신호로 변환되어 콘덴서(C8) 및 저항(R9)을 통한 후 트랜지스터(TR2)에서 1차 증폭된 뒤 콘덴서(C3)를 통해 트랜지스터(TR1)에서 2차 증폭되어 전화라인(L1)에 송신한다. 여기서 콘덴서(C4) 및 저항(R8)은 고주파 제거작용을 하며, 콘덴서(C7),(C1) 및 저항(R1).(R2),(R6),(R7)은 각 트랜지스터(TR1),(TR2)의 바이어스조절과 증폭이득을 조절하는 작용을 한다.At the time of transmission, the voice is converted into an electrical signal in the transmitter TX, and is first amplified in the transistor TR2 through the capacitor C8 and the resistor R9, and then in the transistor TR1 through the capacitor C3. It is amplified and transmitted to telephone line L1. Here, the capacitor C4 and the resistor R8 perform a high frequency elimination action, and the capacitors C7, C1 and resistor R1. R2, R6, and R7 correspond to each transistor TR1, ( TR2) controls the bias and amplification gain.

또한, 수화시에는 전화라인(L1)을 통해 수신되는 신호가 저항(R3) 및 콘덴서(C2)를 통한후 트랜지스티(TR3)에서 증폭된 후 수화기(RX)에서 전기적신호가 음성신호로 변환되어 사용자가 듣게 된다.In addition, during sign language, the signal received through the telephone line L1 is amplified by the transistor R3 after the resistor R3 and the capacitor C2, and then the electrical signal is converted into a voice signal by the receiver RX. The user will hear.

이때 저항(R11),(R12) 및 콘덴서(C5)는 수화신호의 증폭이득을 조절하는 작용을 한다.At this time, the resistors R11, R12 and the condenser C5 adjust the gain of the reception signal.

그리고 송화시 송화신호일부가 수화기(RX)로 귀환되어 들리게 되는 측음이 발생하는데 이 측음은 상기 트랜지스터(TR1)의 에미터에서 저항(R4)을 통한 신호와 그의 콜렉터에서 저항(R3)을 통한 신호가 위상적으로 합산되므로 저항(R3),(R4)치를 조정하여 상쇄시키게 되어 측음방지효과가 있다. 또한 저항(R5),(R10) 다이오드배열(D1-D3) 및 콘덴서(C6)는 송화시 바이어스값과 이득조절 및 측음방지작용을 하게 된다.In addition, a side tone is generated in which a part of the talk signal is returned to the receiver RX, which is a signal through the resistor R4 at the emitter of the transistor TR1 and a signal through the resistor R3 at the collector thereof. Since the phase sums up and cancels by adjusting the resistance (R3), (R4) value there is a side effect prevention effect. In addition, the resistors (R5), (R10) diode array (D1-D3) and the capacitor (C6) is to control the bias value, gain control and side noise prevention during transmission.

이상에서 설명한 바와같이 본 고안 송수화회로는 음성집적소자를 사용하지 않는 간단한 회로구성이므로 경제적으로 유리함과 아울러 어떤 송수화기의 회로에도 응용이 용이한 효과가 있다.As described above, the inventive handset circuit has a simple circuit configuration that does not use a voice integrated device, so it is economically advantageous and easy to apply to any handset circuit.

Claims (1)

송화기(TX)를 콘덴서(C8) 및 저항(R9)을 통해서 바이어스 및 이득조절용 저항(R7),(R8) 및 콘덴서(C4)를 접속한 트랜지스터(TR2)의 베이스에 연결하고, 그 트랜지스터(TR2)의 콜렉터를 콘덴서(C를 통해 바이어스 및 이득조절용 저항(R1),(R2) 및 콘덴서(C1)를 접속한 트랜지스터(TR1)의 베이스에 연결한 뒤 그 트랜지스터(TR1)의 콜렉터를 전화라인(L1)에 연결함과 아울러 저항(R3)을 통해 그의 에미터에 접속한 저항(R4)과 접속하여 그 접속점을 콘덴서(C2)를 통해 바이어스 및 이득조절용 저항(R11), 콘덴서(C5)를 연결하고 에미터를 저항(R12)을 통해 전화라인(L2)에 접속한 트랜지스터(TR3)의 베이스에 연결한뒤 그의 콜렉터를 수화기(RX)에 연결하며, 상기 송화기(TX)에서 저항(R10)을 통한 후 콘덴서(C6), 다이오드배열(D1-D3) 및 상기 수화기(RX)에 공통 연결함과 아울러 저항(R6)을 통해서는 상기 트랜지스터(TR2)의 콜렉터에, 저항(R5)을 통해서는 상기 트랜지스터(TR1)의 에미터에 각기 연결하여 구성된 것을 특징으로 하는 송수화 회로.The transmitter TX is connected to the base of the transistor TR2 to which the bias and gain control resistors R7, R8, and C4 are connected via a capacitor C8 and a resistor R9, and the transistor TR2. ) Is connected to the base of transistor TR1 through which capacitor (C1) biases and gain control resistors (R1), (R2) and capacitor (C1) are connected, and then the collector of transistor (TR1) is connected to a telephone line ( L1) and via the resistor R3 to the resistor R4 connected to its emitter, and the connection point is connected via the capacitor C2 to the bias and gain control resistors R11 and C5. The emitter is connected to the base of the transistor TR3 connected to the telephone line L2 through the resistor R12, and then the collector thereof is connected to the receiver RX. The resistor R10 is connected to the transmitter TX. After connecting to the capacitor (C6), diode array (D1-D3) and the receiver (RX) in common, and through the resistor (R6) Standing in the transmitter and receiver circuit as is characterized in that each configured to connect to the emitter of said transistor (TR1) through, a resistance (R5) to the collector of said transistor (TR2).
KR2019890015685U 1989-10-27 1989-10-27 Telephone transceiver KR940007122Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019890015685U KR940007122Y1 (en) 1989-10-27 1989-10-27 Telephone transceiver

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Application Number Priority Date Filing Date Title
KR2019890015685U KR940007122Y1 (en) 1989-10-27 1989-10-27 Telephone transceiver

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KR910008193U KR910008193U (en) 1991-05-31
KR940007122Y1 true KR940007122Y1 (en) 1994-10-13

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