JPS6275477U - - Google Patents
Info
- Publication number
- JPS6275477U JPS6275477U JP16709485U JP16709485U JPS6275477U JP S6275477 U JPS6275477 U JP S6275477U JP 16709485 U JP16709485 U JP 16709485U JP 16709485 U JP16709485 U JP 16709485U JP S6275477 U JPS6275477 U JP S6275477U
- Authority
- JP
- Japan
- Prior art keywords
- lighting control
- light
- control circuit
- emitting element
- 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
- 238000001514 detection method Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Stand-By Power Supply Arrangements (AREA)
Description
第１図は本考案の一実施例を示す図、第２図は
従来例を示す図である。
１…検出回路、３…点灯制御回路、１０，１１
，１２…発光ダイオード、１４…補助電源、Ｌ１
，Ｓ１，Ｓ２…スイツチ手段となるリレーコイル
及びリレースイツチ、Ｔｒ４，Ｔｒ５…点灯制御
回路となるトランジスタ。
FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing a conventional example. 1 ...Detection circuit, 3 ...Lighting control circuit, 10, 11
, 12... Light emitting diode, 14... Auxiliary power supply, L 1
, S 1 , S 2 . . . a relay coil and relay switch serving as switching means; Tr 4 , Tr 5 . . . transistors serving as a lighting control circuit.
Claims (1)
を検出する検出回路と、この検出回路からの第１
レベルの検出出力に応答して第１の発光素子を点
灯せしめるべく制御する第１の点灯制御回路と、
前記検出回路からの第２レベルの検出出力に応答
して第２の発光素子を点灯せしめるべく制御する
第２の点灯制御回路と、同じく前記検出回路から
の第２レベルの検出出力に応答して第３の発光素
子を点灯せしめるべく制御する第３の点灯制御回
路と、補助電源と、前記電源電圧のレベルが所定
値以下となつたとき、前記電源電圧に代えて前記
補助電源からの電圧を供給するべく切換制御する
スイツチ手段とを備え、前記電源電圧が所定レベ
ル以上のときには、前記検出回路からの第１レベ
ルの検出出力に基づいて前記第１の点灯制御回路
にて前記第１の発光素子を点灯させ、前記電源電
圧が所定レベル以下のときには、前記検出回路か
らの第２レベルの検出出力に基づいて前記第２の
点灯制御回路にて前記第２の発光素子を点灯させ
、前記補助電源が使用されるときには、前記検出
回路からの第２レベルの検出出力に基づいて前記
第３の点灯制御回路にて前記第３の発光素子を点
灯させるようにしたことを特徴とする電源電圧レ
ベル表示回路。 A detection circuit that detects the level of the power supply voltage obtained by rectifying the AC input, and a first
a first lighting control circuit that controls the first light emitting element to light up in response to the level detection output;
a second lighting control circuit that controls a second light emitting element to light up in response to a second level detection output from the detection circuit; a third lighting control circuit that controls a third light emitting element to light up; an auxiliary power source; and a third lighting control circuit that controls a third light emitting element to light up; and switch means for switching control to supply the light, and when the power supply voltage is at a predetermined level or higher, the first lighting control circuit controls the first light emission based on the first level detection output from the detection circuit. When the power supply voltage is below a predetermined level, the second lighting control circuit lights up the second light emitting element based on the second level detection output from the detection circuit, and When the power source is used, the third lighting control circuit lights up the third light emitting element based on a second level detection output from the detection circuit. display circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16709485U JPS6275477U (en) | 1985-10-30 | 1985-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16709485U JPS6275477U (en) | 1985-10-30 | 1985-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6275477U true JPS6275477U (en) | 1987-05-14 |
Family
ID=31098702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16709485U Pending JPS6275477U (en) | 1985-10-30 | 1985-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6275477U (en) |
-
1985
- 1985-10-30 JP JP16709485U patent/JPS6275477U/ja active Pending