JPH0522871Y2 - - Google Patents
Info
- Publication number
- JPH0522871Y2 JPH0522871Y2 JP2648488U JP2648488U JPH0522871Y2 JP H0522871 Y2 JPH0522871 Y2 JP H0522871Y2 JP 2648488 U JP2648488 U JP 2648488U JP 2648488 U JP2648488 U JP 2648488U JP H0522871 Y2 JPH0522871 Y2 JP H0522871Y2
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- emitting element
- turned
- transistor
- oscillation
- 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.)
- Expired - Lifetime
Links
- 230000010355 oscillation Effects 0.000 claims description 35
- 238000010586 diagram Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2648488U JPH0522871Y2 (it) | 1988-02-29 | 1988-02-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2648488U JPH0522871Y2 (it) | 1988-02-29 | 1988-02-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01135383U JPH01135383U (it) | 1989-09-18 |
| JPH0522871Y2 true JPH0522871Y2 (it) | 1993-06-11 |
Family
ID=31248153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2648488U Expired - Lifetime JPH0522871Y2 (it) | 1988-02-29 | 1988-02-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0522871Y2 (it) |
-
1988
- 1988-02-29 JP JP2648488U patent/JPH0522871Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01135383U (it) | 1989-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7429924B2 (en) | Automatic doorbell driver | |
| US5694118A (en) | Gas detection and alarm system for monitoring gas such as carbon monoxide | |
| JPH0412636Y2 (it) | ||
| JP3193298B2 (ja) | 放電灯点灯回路 | |
| JPH0522871Y2 (it) | ||
| JPH0143279B2 (it) | ||
| WO1992000579A1 (en) | System for detecting the condition of a lamp and activating a permanent memory two-state display of the lamp condition | |
| JPS59216078A (ja) | 来客報知器 | |
| JPH01217494A (ja) | 発光素子の発光作動回路 | |
| JPH0954885A (ja) | 火災警報器 | |
| US3457453A (en) | System for controllably energizing and monitoring the normalcy of successively selectable electrical load devices | |
| JPS626416B2 (it) | ||
| JPS6329237Y2 (it) | ||
| KR101796919B1 (ko) | 엘이디 조명 입력 전원 제어 장치 및 이를 구비하는 엘이디 조명 점등 시스템 | |
| JPH0142052Y2 (it) | ||
| JPH0517755Y2 (it) | ||
| JPH08180268A (ja) | 火災警報器 | |
| JPH0449752Y2 (it) | ||
| JPH0445112Y2 (it) | ||
| JPH074655Y2 (ja) | 減電圧表示機能を具えるボルテージレギュレータ回路 | |
| JPS6234398Y2 (it) | ||
| JPH0724918Y2 (ja) | 電池用定電圧電源装置 | |
| JPS6343589Y2 (it) | ||
| KR20020054439A (ko) | 차량용 전자제어장치의 워치독 회로 | |
| JPS5840479Y2 (ja) | 停電灯付火災感知器 |