JPS62206456A - Level display unit - Google Patents

Level display unit

Info

Publication number
JPS62206456A
JPS62206456A JP4881086A JP4881086A JPS62206456A JP S62206456 A JPS62206456 A JP S62206456A JP 4881086 A JP4881086 A JP 4881086A JP 4881086 A JP4881086 A JP 4881086A JP S62206456 A JPS62206456 A JP S62206456A
Authority
JP
Japan
Prior art keywords
led
level
comparator
constant current
reference voltage
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.)
Pending
Application number
JP4881086A
Other languages
Japanese (ja)
Inventor
Hiroo Oikawa
及川 浩生
Tokuo Tsujimoto
辻本 篤男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4881086A priority Critical patent/JPS62206456A/en
Publication of JPS62206456A publication Critical patent/JPS62206456A/en
Pending legal-status Critical Current

Links

Landscapes

  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Indicating Measured Values (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Audible And Visible Signals (AREA)

Abstract

PURPOSE:To enable not only the lighting of LEDs at a certain input level but also the changing the luminance of individual LEDs, by connecting an anode side of high-level LEDs next to an output size of a comparator set at a reference level. CONSTITUTION:A comparator 1 is set at a reference level V1 set based on a division ratio of resistances 16 and 17 and a constant current I1 flows with a constant current circuit 6 to light an LED 11. A comparator 2 is set at a reference voltage level V2 higher than the input signal level V1 set by the resistances 16 and 17 and a constant current I2 flows with a constant current circuit 7 to light an LED 12. At the same time, the comparator 1 is set to light the LED 11. The LED 11 increases the luminance thereof because the LED 12 is connected thereto. Likewise, by the division of voltage with resistances 16-20, LEDs 11-15 are lighted at various luminance levels.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、音楽信号レベルを多数の発光ダイオード(以
下LEDという)等の表示素子を用いて表示するレベル
表示装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a level display device that displays music signal levels using display elements such as a large number of light emitting diodes (hereinafter referred to as LEDs).

従来の技術 2ベー/ 以下に従来のレベル表示装置について説明する。Conventional technology 2 b/ A conventional level display device will be explained below.

第2図は従来のレベル表示装置を示す。第2図において
、1〜rsI′i入力信号と基入力圧を比較するコンパ
レータ、16〜20はコンパレータ1〜6の基準電圧レ
ベルを設定する抵抗、11〜15は表示素子としてのL
ED、6〜1oはLEDl 1〜16の定電流回路であ
る。入力信号が抵抗16〜20で設定した第1の基準電
圧レベル74以上でコンパレータ1がセットされ、定電
流回路6[より定電施工が流れLEDl 1が点灯する
。また、第2の基準電圧レベル72以上でコンパレータ
2がセットされ、定電流回路7に定電施工が流れLED
l 2が点灯する。また、第3の基準電圧レベル■5以
−ヒでコンパレータ3がセットされ、定電流回路8に定
電施工が流れl4D13が点灯する。また、第4の基準
電圧レベル74以上でコンパレータ4がセットされ、定
電施工が流れLED14が点灯する。壕だ、第5の基準
電圧レベル75以上でコンパレータ5がセットされ、定
電施工が流れLEDl 5が点灯する。ここで、基準電
圧し3ベー/ ベルはv、 >v、、 >v、 >v4>v、、 >の
関係にある。
FIG. 2 shows a conventional level display device. In FIG. 2, comparators 1 to rsI'i input signals and base input pressure are compared, 16 to 20 are resistors that set the reference voltage levels of the comparators 1 to 6, and 11 to 15 are L as display elements.
ED, 6-1o are constant current circuits of LEDs 1-16. When the input signal is equal to or higher than the first reference voltage level 74 set by the resistors 16 to 20, the comparator 1 is set, the constant current circuit 6 performs constant current operation, and the LED 1 lights up. Further, when the second reference voltage level 72 or higher, the comparator 2 is set, and constant current is applied to the constant current circuit 7, and the LED
l 2 lights up. Further, the comparator 3 is set at the third reference voltage level (5) and above, and a constant current is applied to the constant current circuit 8, and 14D13 is lit. Moreover, the comparator 4 is set when the fourth reference voltage level 74 or higher is reached, and constant voltage operation is performed and the LED 14 is lit. The comparator 5 is set when the fifth reference voltage level is 75 or higher, constant current construction starts, and the LED 1 5 lights up. Here, the reference voltage 3B/V has the relationship of v, >v, >v, >v4>v, >.

発明が解決しようとする問題点 しかしながら、近年、レベル表示装置など視覚的にアピ
ールする商品が消費者に好捷れる傾向にある中で従来の
レベル表示装置で1l−iL]l!、Dがある信号レベ
ルにより点灯するだけであり、視覚的に物足りなさを感
じていた。
Problems to be Solved by the Invention However, in recent years, there has been a trend for consumers to prefer visually appealing products such as level display devices. , D only turned on at a certain signal level, which left me feeling visually unsatisfied.

問題点を解決するだめの手段 本発明のレベル表示装置は、上記の問題点を解決するだ
め、基準電圧が順次高くなるように設定され、ある信号
を入力して基準電圧と比較し入力信号が基準電圧より大
であるとき発光ダイオードを点灯させるn個のコンパレ
ータと、上記n個のコンパレータの出力段にそれぞれカ
ソードが接続されたn個の発光ダイオードを備えてなり
、上記n個の発光ダイオードのカソードに次段の発光ダ
イオードのアノードを接続し、かつ初段の発光ダイオー
ドのアノードを電源端子に接続したことを特徴とするも
のである。
Means for Solving the Problems In order to solve the above problems, the level display device of the present invention is configured so that the reference voltage increases sequentially, and compares the input signal with the reference voltage by inputting a certain signal. n comparators that turn on a light emitting diode when the voltage is higher than a reference voltage, and n light emitting diodes each having a cathode connected to the output stage of the n comparators; This device is characterized in that the anode of the light emitting diode in the next stage is connected to the cathode, and the anode of the light emitting diode in the first stage is connected to the power supply terminal.

作用 本発明のレベル表示装置は、ある基準電圧レベルに設定
したコンパレータの出力段に次に高レベルのLEDのア
ノード側を接続した簡単な構成からなり、ある入力レベ
ルにより各LEDが点灯するだけでなく、各LEDの輝
度も変化させることができ、視覚的にアピールすること
ができる。
Function The level display device of the present invention has a simple configuration in which the anode side of the next highest level LED is connected to the output stage of a comparator set at a certain reference voltage level, and each LED is turned on simply by a certain input level. The brightness of each LED can also be changed, making it visually appealing.

実施例 以下、本発明の一実施例のレベル表示装置を図面を参照
して説明する。第1図は本発明の一実施例を示しており
、第2図において、1〜5はある信号を入力して、基糸
電圧と比較し、入力信号が基準電圧より大であるとき、
セットするコンパレータ、16〜2oはコンパレータ1
〜5の基準電圧レベルを設定する抵抗、11〜15はI
、ED、6〜10は定電流回路である。以上のように構
成されたLEDレベル表示装置について、以下その動作
を説明する。抵抗16.17の分割比により設定された
ある基準電圧レベルv1でコンパレータ1が七ノドされ
、定電流回路6により定電流11が流れ、LEDl 1
が点灯する。また、抵抗16゜5ベージ 17で設定した入力信号レベルv2より高しベルノ基準
電圧レベルv2  でコンパレータ2がセントされ、定
電流回路7により定電施工、が流れ、LEDl 2が点
灯する。同時にコンパレータ1もセットされ、LEDl
 1も点灯するが、L E D12がLEDl 1のノ
yソード側に接続していることから、I、EDl 1に
は電流(I、−1−I、)が流れ輝度が増す。また抵抗
16〜18で設定した基準電圧レベルv2より高レベル
の基準電圧レベルv3でコンパレータ3がセットされ、
定電流回路8により定電施工、が流れ、LEDl 3が
点灯する。同時にコンパレータ1,2もセットされ、I
、ED13がLEDl 2のカソード側に接続している
ことから、LEDl 2は、電流(I、−1−I、)が
流れ点灯し、LEDl 1は電流(I、 +1. +I
3)が流れ輝度が増し点灯する。また抵抗16〜19で
設定した基準電圧レベルv3より高レベルの基準電圧レ
ベルv4でコンパレータ4がセットされ、定電流回路9
により定電施工4が流れ、LEDl4が点灯する。同時
にコンパレータ1,2.36ペー/′ もセットされ、L)!:D14がLEDl 3のカソー
ド側に接続しているととから、LEDl 3は電流(I
、−4−I4)が流れ点灯し、LEDl 2は電流(I
 2+I 3+工4 )が流れ点灯し、LEDl 1は
電流(I 、+I 、、+I 、−1−I 4)が流れ
、それぞれ輝度が増し点灯する。
Embodiment Hereinafter, a level display device according to an embodiment of the present invention will be explained with reference to the drawings. FIG. 1 shows an embodiment of the present invention, and in FIG. 2, 1 to 5 input a certain signal and compare it with the basic thread voltage, and when the input signal is larger than the reference voltage,
Comparator to set, 16~2o is comparator 1
~5 resistors to set reference voltage levels, 11-15 are I
, ED, and 6 to 10 are constant current circuits. The operation of the LED level display device configured as described above will be described below. Comparator 1 is turned on at a certain reference voltage level v1 set by the division ratio of resistor 16.17, constant current 11 flows through constant current circuit 6, and LED l1
lights up. Further, when the input signal level v2 is higher than the input signal level v2 set by the resistor 16.degree. At the same time, comparator 1 is also set, and LEDl
1 is also lit, but since the LED 12 is connected to the node side of the LED 1, a current (I, -1-I,) flows through the LED 1, increasing the brightness. Further, the comparator 3 is set at a reference voltage level v3 higher than the reference voltage level v2 set by the resistors 16 to 18,
Constant current flows through the constant current circuit 8, and the LED 3 lights up. At the same time, comparators 1 and 2 are also set, and I
, ED13 is connected to the cathode side of LEDl 2, current (I, -1-I,) flows through LEDl 2 and lights up, and LEDl 1 receives current (I, +1. +I).
3) flows and the brightness increases and the light turns on. Further, the comparator 4 is set at a reference voltage level v4 higher than the reference voltage level v3 set by the resistors 16 to 19, and the constant current circuit 9
As a result, the constant current construction 4 is executed and the LED l4 is turned on. At the same time, comparators 1 and 2.36 pages/' are also set, L)! :Since D14 is connected to the cathode side of LEDl 3, LEDl 3 has a current (I
, -4-I4) flows and lights up, and LEDl 2 flows with current (I
2+I3+work4) flows and lights up, and currents (I, +I, , +I, -1-I4) flow through LEDl1, each of which increases in brightness and lights up.

寸だ、抵抗16〜20で設定した基準電圧レベル■4よ
り高レベルの基準電圧レベルv5でコンパレータ6がセ
ットされ、定電流回路10により定電施工、が流れ、L
EDl 5が点灯する。同時にコンパレータ1,2,3
.4もセットサレ、llCD15がLEDl4のカソー
ド側に接続していることから、IEDl 4は電流(I
4+I、)  が流れ点灯し、LED13は電流(I、
+I4−1−I、)が流れ点灯し、LEDl 2は電流
(I、 +I、+x4+x、、)が流れ点灯し、LED
l 1は電流(I、+I、+I、+I4+I、 )が流
れ、それぞれ各LED輝度が増し点灯する。
The comparator 6 is set at the reference voltage level v5, which is higher than the reference voltage level set by the resistors 16 to 20.
EDl 5 lights up. At the same time comparators 1, 2, 3
.. 4 is also set. Since llCD15 is connected to the cathode side of LED 14, IEDl 4 has a current (I
4+I,) flows and lights up, and LED13 shows the current (I,
+I4-1-I,) flows and lights up, and current (I, +I, +x4+x,,) flows to LEDl2, lighting it up.
Current (I, +I, +I, +I4+I, ) flows through l1, and each LED increases in brightness and lights up.

発明の効果 7ベーノ に高レベルのLEDのアノード側を接続した簡単な構成
であるためある入力レベルにより各LEDが点灯するた
けでなく、各LEDの輝度も変化させることができ、視
覚的にアピールすることができるメリットを有する。
Effects of the Invention 7 Since the configuration is simple in that the anode side of a high-level LED is connected to the vane, each LED not only lights up depending on a certain input level, but also the brightness of each LED can be changed, making it visually appealing. It has the advantage of being able to

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

第1図は本発明のレベル表示装置の一実施例を示す回路
図、第2図は従来のレベル表示装置の回路図である。 1〜5゛°°パ°コンパレータ、6〜10・・・・・・
定電流回路、11〜16・・・・・・LED、16〜2
0白゛抵抗。
FIG. 1 is a circuit diagram showing an embodiment of the level display device of the present invention, and FIG. 2 is a circuit diagram of a conventional level display device. 1 to 5゛°° comparator, 6 to 10...
Constant current circuit, 11-16...LED, 16-2
0 white resistance.

Claims (1)

【特許請求の範囲】[Claims] 基準電圧が順次高くなるように設定され、ある信号を入
力して基準電圧と比較し入力信号が基準電圧より大であ
るとき発光ダイオードを点灯させるn個のコンパレータ
と、上記n個のコンパレータの出力段にそれぞれカソー
ドが接続されたn個の発光ダイオードを備えてなり、上
記n個の発光ダイオードのカソードに次段の発光ダイオ
ードのアノードを接続し、かつ初段の発光ダイオードの
アノードを電源端子に接続したことを特徴とするレベル
表示装置。
n comparators that are set so that the reference voltage increases sequentially, input a certain signal, compare it with the reference voltage, and turn on a light emitting diode when the input signal is greater than the reference voltage; and the outputs of the n comparators. It is equipped with n light emitting diodes each having a cathode connected to each stage, the anode of the light emitting diode of the next stage is connected to the cathode of the n light emitting diodes, and the anode of the light emitting diode of the first stage is connected to the power supply terminal. A level display device characterized by:
JP4881086A 1986-03-06 1986-03-06 Level display unit Pending JPS62206456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4881086A JPS62206456A (en) 1986-03-06 1986-03-06 Level display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4881086A JPS62206456A (en) 1986-03-06 1986-03-06 Level display unit

Publications (1)

Publication Number Publication Date
JPS62206456A true JPS62206456A (en) 1987-09-10

Family

ID=12813561

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4881086A Pending JPS62206456A (en) 1986-03-06 1986-03-06 Level display unit

Country Status (1)

Country Link
JP (1) JPS62206456A (en)

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