JPH0485837U - - Google Patents
Info
- Publication number
- JPH0485837U JPH0485837U JP12559090U JP12559090U JPH0485837U JP H0485837 U JPH0485837 U JP H0485837U JP 12559090 U JP12559090 U JP 12559090U JP 12559090 U JP12559090 U JP 12559090U JP H0485837 U JPH0485837 U JP H0485837U
- Authority
- JP
- Japan
- Prior art keywords
- receiver
- current source
- broadcast
- receiving
- light emitting
- 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
Links
- 239000003086 colorant Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Circuits Of Receivers In General (AREA)
Description
第１図は、この考案の一実施例の構成を示す回
路図である。第２図は、従来のＡＭ・ＦＭ放送受
信機のインジケータ回路を示す回路図である。
図において、１はＦＭステレオデコーダ、２は
ＡＭステレオデコーダ、Ｑ３〜Ｑ５は吸込み電流
源を形成するトランジスタ、３は多色発光素子、
３ａは赤色表示用のＬＥＤ、３ｂは緑色表示用の
ＬＥＤを示す。
FIG. 1 is a circuit diagram showing the configuration of an embodiment of this invention. FIG. 2 is a circuit diagram showing an indicator circuit of a conventional AM/FM broadcast receiver. In the figure, 1 is an FM stereo decoder, 2 is an AM stereo decoder, Q3 to Q5 are transistors forming a sinking current source, 3 is a multicolor light emitting element,
3a is an LED for red display, and 3b is an LED for green display.
Claims (1)
の状態と、ＡＭステレオ放送を受信している第２
の状態と、ＦＭステレオ放送を受信している第３
の状態とを、異なる色で表示するＡＭ・ＦＭ放送
受信機のインジケータ回路であつて、 受信機がＡＭ放送を受信しているときに第１の
吸込み電流源を形成する第１の電流源手段と、 受信機がＡＭステレオ放送を受信しているとき
に第２の吸込み電流源を形成する第２の電流源手
段と、 受信機がＦＭステレオ放送を受信しているとき
に第３の吸込み電流源を形成する第３の電流源手
段と、 互いに異なる色を発光する第１および第２の発
光ダイオードを有する多色表示手段とを備え、 前記第１および第２の発光ダイオードのアノー
ドは共通接続されて電源に接続され、 前記第１の発光ダイオードのカソードは前記第
１の電流源手段に接続され、 前記第２の発光ダイオードのカソードは前記第
２および第３の電流源に接続されている、ＡＭ・
ＦＭ放送受信機のインジケータ回路。[Scope of claim for utility model registration]
and the second station receiving AM stereo broadcasting.
and the third station receiving FM stereo broadcasting.
an indicator circuit for an AM/FM broadcast receiver that displays the status of the receiver in different colors, the first current source means forming a first sink current source when the receiver is receiving AM broadcast; and a second current source means forming a second sink current source when the receiver is receiving an AM stereo broadcast; and a third current sink when the receiver is receiving an FM stereo broadcast. and a multicolor display means having first and second light emitting diodes emitting light of different colors, the anodes of the first and second light emitting diodes being commonly connected. and connected to a power source, a cathode of the first light emitting diode being connected to the first current source means, and a cathode of the second light emitting diode being connected to the second and third current sources. , A.M.
FM broadcast receiver indicator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12559090U JPH0485837U (en) | 1990-11-27 | 1990-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12559090U JPH0485837U (en) | 1990-11-27 | 1990-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0485837U true JPH0485837U (en) | 1992-07-27 |
Family
ID=31873182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12559090U Pending JPH0485837U (en) | 1990-11-27 | 1990-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0485837U (en) |
-
1990
- 1990-11-27 JP JP12559090U patent/JPH0485837U/ja active Pending
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