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KR920007483B1 - Tone ringing circuit - Google Patents

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KR920007483B1
KR920007483B1 KR1019890020217A KR890020217A KR920007483B1 KR 920007483 B1 KR920007483 B1 KR 920007483B1 KR 1019890020217 A KR1019890020217 A KR 1019890020217A KR 890020217 A KR890020217 A KR 890020217A KR 920007483 B1 KR920007483 B1 KR 920007483B1
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output
constant
integrated circuit
voltage
frequency oscillator
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KR910013803A (en
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정종덕
김원영
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삼성전자 주식회사
김광호
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers

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Abstract

내용 없음.No content.

Description

가변 히스테리시스 특성을 가지는 톤링어 집적회로Tone Ringer Integrated Circuit with Variable Hysteresis

제1도는 종래의 히스테리시스 특성을 갖는 톤링어 직접회로도.1 is a tone ringer integrated circuit diagram having a conventional hysteresis characteristic.

제2도는 본 발명에 따른 가변 히스테리시스 특성을 가지는 톤링어 집적회로도.2 is a tone ringer integrated circuit diagram having a variable hysteresis characteristic according to the present invention.

제3도는 제2도에 따른 가변 히스테리시스 특성을 가지는 정전압원의 상세 회로도이고.3 is a detailed circuit diagram of a constant voltage source having a variable hysteresis characteristic according to FIG.

제4a, b도는 종래의 톤링어 직접회로의 특성 상태도, 제4c,d도는 본 발명의 톤링어 집적회로의 특성 상태도이다.4A and 4B are characteristic state diagrams of a conventional tone ringer integrated circuit, and 4C and d are characteristic state diagrams of a tone ringer integrated circuit of the present invention.

제4e, f도는 히스테리시스 특성을 갖는 정전압을 나타낸 도.4e, f are diagrams showing a constant voltage having hysteresis characteristics.

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

1 : 히스테리시스특성을 갖는 정전압원 2 : 저주파 발진기1: constant voltage source with hysteresis characteristics 2: low frequency oscillator

3 : 고주파 발진기 4 : 출력앰프3: high frequency oscillator 4: output amplifier

5 : 가변 히스테리시스특성을 갖는 정전압원 6 : 기준전압,5: constant voltage source with variable hysteresis characteristics 6: reference voltage,

7 : 차동증폭기 8 : 정전압원7 differential amplifier 8 constant voltage source

9 : 궤환 임피던스 10 : 전원전압9: feedback impedance 10: power supply voltage

11 : 입력임피던스11: input impedance

이 발명은 히스테리시스 특성을 갖는 톤링어의 집적회로에 관한 것으로, 직류전압원에서 직류전압이 인가되면 피에죠에서 발생된 구형파의 출력에 따라 스피커를 구동시켜 전화기등의 링단자에서 호출신호가 발생되도록 한 가변 히스테리시스 특성을 갖는 톤링어 집적회로에 관한 것이다. 일반적으로 전화기등에서 호출신호가 발생되게 하는 톤링어 집적회로는 일정한 범위의 전원전압이 공급되는 경우에 호출신호를 발생시키고, 설정된 범위내에서는 호출신호가 차단되어야만 스피치네트워크(도시생략됨)와 오동작되는 것을 방지할 수 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated circuit of a tone ringer having a hysteresis characteristic. When a DC voltage is applied from a DC voltage source, a speaker is driven according to the output of a square wave generated in a piezo so that a call signal is generated at a ring terminal such as a telephone. A tone ringer integrated circuit having a variable hysteresis characteristic is provided. In general, a tone ringer integrated circuit that generates a call signal in a telephone or the like generates a call signal when a certain range of power voltages are supplied, and malfunctions with a speech network (not shown) only when the call signal is cut off within a set range. Can be prevented.

그러나 교환기와 교환기 사이의 임피던스 및 교환기와 가정용 전화기의 임피던스 및 기타 여러가지 원인등에 의하여 톤링어가 정상적으로 동작되는데 있어서, 이 임피던스 영향으로 인하여 여러가지 제한을 받게 된다. 따라서 종래의 톤링어 집적회로는 히스테리시스 특성을 가지고 있어 일정한 레벨의 입력전압이 공급되는 경우에 호출신호가 발생되도록 하고 있으나, 전원전압의 오프전압은 항상 고정되어 있고, 온전압만을 변화시킬 수 있는 히스테리시스 특성을 갖고 있기때문에 여러가지 지역 및 제반여건에 따라 가변적으로 히스테리시스 특성을 변경시킬 수가 없는 것이었다.However, in the normal operation of the tone ringer due to the impedance between the exchanger and the exchanger, the impedance of the exchanger and the home telephone, and various other causes, various effects are imposed due to the impedance effect. Therefore, the conventional tone ringer integrated circuit has a hysteresis characteristic so that a call signal is generated when a constant level input voltage is supplied, but the off voltage of the power supply voltage is always fixed and only the on voltage can be changed. Because of its characteristics, the hysteresis characteristics could not be changed variably according to various regions and various conditions.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 가변 히스테리시스 특성을 갖게하여 전원전압의 오프 전압 및 전원전압의 온전압과 중심전압을 변경할 수 있는 가변 히스테리시스 특성을 갖는 톤링어 집적회로를 제공하고자 하는 것이다.SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a variable hysteresis characteristic and a tone ringer integrated circuit having a variable hysteresis characteristic capable of changing the off voltage of the power supply voltage and the on voltage and the center voltage of the power supply voltage. Is to provide.

이와 같은 목적은 정전압원의 출력 유무를 제어하는 쉬미트트리거회로를 포함시켜 쉬미트트리거회로의 입력 임피던스 및 궤환 임피던스의 비를 변환시키고 비교되는 기준전압을 변환시킴으로써 쉽게 달성할 수 있다.This object can be easily achieved by including a Schmitt trigger circuit for controlling the output of the constant voltage source to convert the ratio of the input impedance and the feedback impedance of the Schmitt trigger circuit and convert the reference voltage to be compared.

본 발명의 특징은 전원전압을 인가 받아 일정한 정전원이 출력되도록 히스테리시스 특성을 갖는 정전압원과, 상기 정전압원의 출력을 인가 받아 동작되며 회로내부에 저항 및 콘덴서(도시않됨)로 구성된 발진회로가 포함되는 저주파발진기와, 상기 저주파 발진기에 의해 발진주파수에 영향을 받는 저항 및 콘덴서(도시않됨)로 구성된 고주파 발진기와, 상기 고주파 발지기의 출력을 인가받아 증폭시키는 출력앰프와로 구성된 히스테리시스 특성을 가진 톤링어 집적회로에 있어서 ; 상기 정전압원에는 전원전압 및 기준전압을 각각 비교하여 차동증폭시키는 차동증폭기와, 그리고 상기 차동증폭기의 출력을 일정하게 유지시키는 정전압원이 더 포함되어 구성되는 가변 히스테리시스 특성을 가지는 톤링어 집적회로에 있는 것이다.Features of the present invention include a constant voltage source having hysteresis characteristics such that a constant electrostatic source is output by receiving a power supply voltage, and an oscillation circuit configured to be operated by receiving the output of the constant voltage source and having a resistor and a capacitor (not shown) inside the circuit. Tone having a hysteresis characteristic consisting of a low frequency oscillator, a high frequency oscillator composed of a resistor and a capacitor (not shown) influenced by the oscillation frequency by the low frequency oscillator, and an output amplifier for receiving and amplifying the output of the high frequency oscillator. In a ringer integrated circuit; The constant voltage source further comprises a differential amplifier for differentially comparing the supply voltage and the reference voltage, respectively, and a constant voltage source for maintaining a constant output of the differential amplifier, the tone ringer integrated circuit having a variable hysteresis characteristics will be.

이하, 첨부도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.

제1는 종래의 히스테리시스 특성을 갖는 톤링어 집적회로를 나타내고 있다. 상기 톤링어 집적회로는 전원압력(10)을 인가 받아 일정한 정전원이 출력되도록 히스테리시스 특성을 가지는 정전압원(1)과, 상기 정전압원(1)의 출력을 인가 받아 동작되며 회로 내부에 저항 및 콘덴서(도시않됨)로 구성된 발진회로가 포함되는 저주파 발진기 (2)와, 상기 정전압원(1)의 출력을 인가 받아 동작되고 상기 저주파 발진기(2)에 의해 발진주파수에 영향을 받는 내부회로에 저항 및 콘덴서(도시않됨)로 구성된 발진회로가 포함되는 고주파 발진기(3), 상기 고주파 발진기(3)의 출력을 인가 받아 증폭시키는 출력앰프(4)와로 구성된다.The first shows a conventional tone ringer integrated circuit having hysteresis characteristics. The tone ringer integrated circuit is operated by receiving a constant voltage source 1 having hysteresis characteristics and an output of the constant voltage source 1 so that a constant electrostatic source is output by receiving a power supply pressure 10 and a resistor and a capacitor inside the circuit. A low frequency oscillator 2 including an oscillation circuit composed of (not shown) and an internal circuit affected by the oscillation frequency by the low frequency oscillator 2 and operated by receiving the output of the constant voltage source 1 and And a high frequency oscillator 3 including an oscillation circuit composed of a capacitor (not shown), and an output amplifier 4 for receiving and amplifying the output of the high frequency oscillator 3.

이와 같이 히스테리시스 특성을 갖는 톤링어 집적회로는 외부에서 공급되는 전원전압(10)이 상기 정전압원(1)에 입력되고 히스테리시스 특성을 갖는 정전압원(10)은 일정한 정전압을 저주파발진기(2)와 고주파발진기(3)에 공급하여 발진시키고 이 발진출력이 출력앰프(4)에 입력되어 증폭된 후 일정한 호출신호를 발생시킨다. 이와 같은 회로는 전원전압(10)의 일정한 레벨에 도달되면 정전압원(1)의 출력이 상승펄스로 발생되고 또한 전원전압(10)이 일정한 레벨로 떨어지면 정전압원(1)의 출력이 하강펄스로 발생되는 히스테리시스 특성을 갖게 된다. 이와 같은 히스테리시스의 특성은 중심전압에서 소정의 펄스폭으로 출력되며 제4a도와 같이 상승펄스와 하강펄스를 갖는다.As described above, in the tone ringer integrated circuit having hysteresis characteristics, the external power supply voltage 10 is input to the constant voltage source 1, and the constant voltage source 10 having hysteresis characteristics has a constant constant voltage with the low frequency oscillator 2 and the high frequency. The oscillator is supplied to the oscillator 3 to oscillate, and this oscillation output is inputted to the output amplifier 4 to be amplified to generate a constant call signal. In such a circuit, when the constant level of the power supply voltage 10 is reached, the output of the constant voltage source 1 is generated as a rising pulse, and when the power supply voltage 10 falls to a constant level, the output of the constant voltage source 1 is as a falling pulse. It has a hysteresis characteristic generated. This hysteresis characteristic is output at a predetermined pulse width at the center voltage and has a rising pulse and a falling pulse as shown in FIG. 4A.

그러나 기존의 히스테리시스 특성을 갖는 톤링어 집적회로는 제4b도와 같이 온전압(A)은 낮출수가 있으나 증가시킬 수가 없고 오프전압(B)은 일정하게 고정되어 있는 제한적인 특성만을 갖게된다.However, in the conventional tone ringer integrated circuit having a hysteresis characteristic, the on-voltage A can be lowered, but cannot be increased, and the off-voltage B is fixed as shown in FIG. 4b.

제2도는 본 발명에 따른 가변 히스테리시스 특성을 가지는 톤링어 집적회로도를 나타내고 있다. 여기서 기본적인 저주파 발진기(2), 고주파발진기(3) 및 출력앰프(4)로 구성된 톤링어 집적회로는 제1도와 동일하고 전원전압(10)이 인가되는 경우에 저주파 발진기(2)와 고주파 발진기(3)에 출력을 발생시키는 정전압원(5)을 가변 히스테리시스 특성을 가지도록 구성한 것에 있다. 상기한 가변 히스테리시스 특성을 가지는 정전압원(5)은 제3도와 같은 구성을 가진다. 제3도를 참조하면 전원전압(10)과 기준전압 (6)이 인가되는 차동증폭기(7)에는 입력 임피던스(11) 및 궤환 임피던스(9)가 연결되어 히스테리시스의 중심전압을 각각 증가 또는 감소할 수 있게 쉬미트트리거회로로 구성하고, 상기 차동증폭기의 출력측에는 일정한 출력전원을 공급하는 정전압원(8)이 연결되게 구성시킨다.2 shows a tone ringer integrated circuit diagram having a variable hysteresis characteristic according to the present invention. Here, the tone ringer integrated circuit including the basic low frequency oscillator 2, the high frequency oscillator 3, and the output amplifier 4 is the same as that of FIG. 1, and the low frequency oscillator 2 and the high frequency oscillator (if the power supply voltage 10 is applied) The constant voltage source 5 which generates an output in 3) is comprised so that it may have a variable hysteresis characteristic. The constant voltage source 5 having the variable hysteresis characteristic described above has the configuration as shown in FIG. Referring to FIG. 3, an input impedance 11 and a feedback impedance 9 are connected to the differential amplifier 7 to which the power supply voltage 10 and the reference voltage 6 are applied to increase or decrease the center voltage of the hysteresis, respectively. It is configured to be a Schmitt trigger circuit so that the constant voltage source 8 for supplying a constant output power is connected to the output side of the differential amplifier.

이와 같이 구성된 본 발명에서 먼저 전원전압(10)이 공급되는 상태로 되면 입력임피던스(11)를 경유한 전원전압(10)은 기준전압(6)과 비교하고 궤한 임피던스(9)를 통하여 차동증폭기(7)에서 차동증폭을 한다. 이때, 상기 입력 임피던스(11) 및 궤환 임피던스(9)를 일정한 값으로 설정하고 차동증폭기(7)에 입력되는 기준전압(6)을 가변하면 제4e도 또는 제4f도와 같이 히스테리시스 특성을 갖는 정전압을 증가 또는 감소시킬 수가 있다. 또한, 기준전압(6)을 일정한 값으로 설정한 다음, 입력 임피던스(11) 및 궤환 임피던스(9)의 비를 조절하면 제4c도 또는 제4d도와 같이 히스테리시스 폭이 확대되거나 감소되어 이 히스테리시스 폭을 가변시킬 수가 있게 된다. 한편, 입력 임피던스(11) 및 궤환 임피던스(9)의 비를 가변시키면서 동시에 기준전압(6)을 동시에 가변시키는 경우에는 히스테리시스 폭과 중심전압을 동시에 가변시킬 수가 있게 된다.In the present invention configured as described above, when the power supply voltage 10 is first supplied, the power supply voltage 10 via the input impedance 11 is compared with the reference voltage 6 and the differential amplifier 9 through the tracked impedance 9. Differential amplification in 7). At this time, if the input impedance 11 and the feedback impedance 9 are set to a constant value and the reference voltage 6 input to the differential amplifier 7 is varied, a constant voltage having hysteresis characteristics as shown in FIG. 4e or 4f is obtained. Can be increased or decreased. In addition, setting the reference voltage 6 to a constant value and then adjusting the ratio of the input impedance 11 and the feedback impedance 9 increases or decreases the hysteresis width as shown in FIG. 4C or FIG. It can be changed. On the other hand, when the reference voltage 6 is simultaneously changed while the ratio of the input impedance 11 and the feedback impedance 9 is varied, the hysteresis width and the center voltage can be simultaneously changed.

제4c도 내지 제4f도는 본 발명 톤링어 집적회로의 특성상태도로서, 정전압회로의 출력전압이 상위수준일때 톤링어 집적회로가 동작하고 하위수준일때 톤링어 집적회로의 동작이 정지되게 하여 호출신호를 발생시키게 된다.4C to 4F are characteristic state diagrams of the tone ringer integrated circuit of the present invention, wherein the tone ringer integrated circuit is operated when the output voltage of the constant voltage circuit is at a high level and the operation of the tone ringer integrated circuit is stopped when the low voltage is at a low level. Will be generated.

여기서 제4c도는 본 발명에서 히스테리시스 폭을 확대시킨 것을 나타내는 특성곡선이며, 제4d도는 본 발명에서 히스테리시스의 폭을 축소시킨 것을 나타내고 있다. 또한 제4e도는 본 발명에서 히스테리시스의 중심전압을 증가시킨 특성곡선을 나타내며, 제4f도는 본 발명에서 히스테리시스의 중심전압을 감소시킨 특성곡선을 나타내고 있다.FIG. 4C is a characteristic curve showing an enlarged hysteresis width in the present invention, and FIG. 4D shows a reduced hysteresis width in the present invention. 4E shows a characteristic curve of increasing the center voltage of hysteresis in the present invention, and FIG. 4F shows a characteristic curve of decreasing the center voltage of hysteresis in the present invention.

이와 같이 본 발명은 가변 히스테리시스 특성을 갖게하여 원하는 오프전압에 따른 전원공급전압을 얻을 수가 있는 것이다.As described above, the present invention has a variable hysteresis characteristic to obtain a power supply voltage according to a desired off voltage.

이상에와 같이 본 발명은 정전압원의 출력유무를 제어하는 차동증폭기로 쉬미트트리거회로를 구성하여 기준전압의 변경과 입력 임피던스 및 궤환 임피던스비를 조절하여 톤링어의 히스테리시스 특성을 개선시킬 수가 있는 것으로, 히스테리시스 폭의 변환, 히스테리시스 중심의 변화, 히스테리시스 폭과 히스테리시스 중심의 변환이 가능하여 원하는 톤링어 집적회로의 특성을 얻을수가 있는 것이다. 따라서, 지역 및 장소에 따라 변하는 특성에 의하여 기준전압과 임피던스비를 조절하여 톤링어 집적회로에서 호출신호 발생시 생기는 스피치 네트워크와의 오동작을 방지하여 제한적 히스테리시스 특성을 가지는 톤링어 집적회로의 단점을 개선할 수 있는 효과가 있는 것이다.As described above, the present invention can improve the hysteresis characteristics of the tone ringer by configuring the Schmitt trigger circuit as a differential amplifier controlling the output of the constant voltage source, and adjusting the change of the reference voltage and the input impedance and feedback impedance ratio. It is possible to convert hysteresis width, change hysteresis center, and change hysteresis width and hysteresis center to obtain desired toneringer integrated circuit characteristics. Therefore, by controlling the reference voltage and the impedance ratio according to the characteristics of the region and the place, it is possible to prevent the malfunction of the speech network generated when the call signal is generated in the tone ringer integrated circuit, thereby improving the disadvantage of the tone ringer integrated circuit having limited hysteresis characteristics. It can be effective.

Claims (2)

전압전원(10)을 인가 받아 일정한 정전원이 출력되도록 히스테리시스 특성을 갖는 정전압원(1)과, 상기 정전압원(1)의 출력을 인가받아 동작되며 회로내부에 저항 및 콘덴서로 구성된 발진회로가 포함되는 저주파발진기(2)와, 상기 저주파 발진기(2)에 의해 발진주파수에 영향을 받는 저항 및 콘덴서로 구성된 고주파 발진기(3)와, 상기 고주파 발진기(3)의 출력을 인가 받아 증폭시키는 출력 앰프(4)와로 구성된 히스테리시스 특성을 가진 톤링어 집적회로에 있어서 ; 상기 정전압원(1)에는 전원전압(10) 및 기준전압(6)을 각각 비교하여 차동증폭시키는 차동증폭기(7)와, 그리고 상기 차동증폭기(7)의 출력을 일정하게 유지시키는 정전압원(8)이 더 포함되어 구성되는 가변 히스테리시스 특성을 가지는 톤링어 집적회로.A constant voltage source 1 having hysteresis characteristics is applied so that a constant electrostatic source is output by receiving a voltage power supply 10, and an oscillation circuit including a resistor and a capacitor inside the circuit is operated by receiving the output of the constant voltage source 1. A low frequency oscillator 2, a high frequency oscillator 3 composed of a resistor and a capacitor influenced by the oscillation frequency by the low frequency oscillator 2, and an output amplifier for receiving and amplifying the output of the high frequency oscillator 3 4) a tone ringer integrated circuit having hysteresis characteristics consisting of; The constant voltage source 1 includes a differential amplifier 7 for differentially comparing the power supply voltage 10 and the reference voltage 6 with each other, and a constant voltage source 8 for keeping the output of the differential amplifier 7 constant. Tone ring integrated circuit having a variable hysteresis characteristic further comprises. 제1항에 있어서, 상기 차동증폭기(7)의 전단 입력측에는 입력 임피던스(11)를 직렬로 연결하고 그 전단 출력측과 후단 출력측에는 궤환 임피던스(9)를 병렬로 연결하여 전원전압(10)이 공급되면 기준전압(6)과 비교되도록 쉬미트트리거회로를 형성한 가변 히스테리시스 특성을 가지는 톤링어 직접회로.2. The power supply voltage (10) according to claim 1, wherein an input impedance (11) is connected in series to the front input side of the differential amplifier (7) and a feedback impedance (9) is connected in parallel to the front output side and the rear output side of the differential amplifier (7). A tone ringer integrated circuit having a variable hysteresis characteristic in which a Schmitt trigger circuit is formed to be compared with a reference voltage (6).
KR1019890020217A 1989-12-29 1989-12-29 Tone ringing circuit Expired KR920007483B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890020217A KR920007483B1 (en) 1989-12-29 1989-12-29 Tone ringing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890020217A KR920007483B1 (en) 1989-12-29 1989-12-29 Tone ringing circuit

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KR910013803A KR910013803A (en) 1991-08-08
KR920007483B1 true KR920007483B1 (en) 1992-09-04

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