JPH0326639Y2 - - Google Patents
Info
- Publication number
- JPH0326639Y2 JPH0326639Y2 JP1985079752U JP7975285U JPH0326639Y2 JP H0326639 Y2 JPH0326639 Y2 JP H0326639Y2 JP 1985079752 U JP1985079752 U JP 1985079752U JP 7975285 U JP7975285 U JP 7975285U JP H0326639 Y2 JPH0326639 Y2 JP H0326639Y2
- Authority
- JP
- Japan
- Prior art keywords
- solar cell
- storage battery
- light emitting
- emitting diode
- photocoupler
- 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
Links
- 229910003307 Ni-Cd Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は太陽電池を用いた照明駆動装置に関す
るもので、特にフオトカプラーを構成する発光ダ
イオードによつて蓄電池から太陽電池への電流の
逆流を防止するとともに上記フオトカプラーの出
力によつて照明装置の点灯および消灯を自動的に
制御するようにしたものである。[Detailed description of the invention] The present invention relates to a lighting driving device using a solar cell, and in particular, a light emitting diode constituting a photocoupler prevents current from flowing backwards from a storage battery to a solar cell. The lighting device is automatically turned on and off depending on the output.
以下本考案の一実施例を図面に基づいて説明す
る。B1は太陽電池で、時計等の負荷（図示せ
ず。）の電源となるものである。B2は二次電池と
してのNi−Cd電池等の蓄電池、PCはフオトカプ
ラーで、発光ダイオードＤおよびフオトトランジ
スタPTからなる。Ｔはトランジスタ、Ｒは抵抗、
Ｌはリレー、Ｓはその接点である。ACは交流電
源、Ａは照明装置である。 An embodiment of the present invention will be described below based on the drawings. B1 is a solar cell that serves as a power source for a load such as a clock (not shown). B2 is a storage battery such as a Ni-Cd battery as a secondary battery, and PC is a photocoupler, which is composed of a light emitting diode D and a phototransistor PT. T is a transistor, R is a resistor,
L is a relay, and S is its contact. AC is an alternating current power supply, and A is a lighting device.
以上の構成において、昼間は太陽光によつて太
陽電池B1に起電力が生じ、これによつて時計等
の負荷が駆動されるとともに蓄電池B2が充電さ
れる。この充電電流によつて発光ダイオードＤが
発光し、フオトトランジスタPTがオンに、トラ
ンジスタＴがオフになつてリレーＬがオフにな
る。そのため接点Ｓが開いて照明装置Ａが不動作
状態に保持される。 In the above configuration, during the daytime, sunlight generates an electromotive force in the solar cell B1 , which drives a load such as a clock and charges the storage battery B2 . This charging current causes the light emitting diode D to emit light, turning on the phototransistor PT, turning off the transistor T, and turning off the relay L. Therefore, the contact S is opened and the lighting device A is kept in an inoperative state.
そして夜になつて、太陽電池B1の起電力が低
下すると、蓄電池B2によつて負荷が駆動され、
蓄電池B2から太陽電池B1への電流の逆流が発光
ダイオードＤによつて防止される。しかも、フオ
トカプラーPCがオフになるため、トランジスタ
ＴがオンになつてリレーＬがオンになり、接点Ｓ
が閉じて照明装置Ａが点灯する。 Then, at night, when the electromotive force of solar cell B 1 decreases, the load is driven by storage battery B 2 ,
A backflow of current from the storage battery B 2 to the solar cell B 1 is prevented by the light emitting diode D. Moreover, since photocoupler PC is turned off, transistor T is turned on, relay L is turned on, and contact S
closes and lighting device A lights up.
以上のように本考案によれば、時計等の電源と
して用いられる蓄電池と太陽電池間に逆流防止ダ
イオードとして発光ダイオードを用い、これによ
つて電流の逆流防止とともに周囲の明るさの検知
をも兼用したので、簡単な構成によつて自動的に
夜間照明が行なえる。 As described above, according to the present invention, a light emitting diode is used as a backflow prevention diode between a storage battery used as a power source for a watch, etc. and a solar cell, and this serves both to prevent backflow of current and to detect the surrounding brightness. Therefore, night illumination can be performed automatically with a simple configuration.
図面は本考案の一実施例を示した電気回路図で
ある。
B1……太陽電池、B2……蓄電池、PC……フオ
トカプラー、Ｄ……発光ダイオード、PT……フ
オトトランジスタ、Ｔ……トランジスタ、Ａ……
照明装置。
The drawing is an electrical circuit diagram showing an embodiment of the present invention. B 1 ...Solar cell, B2 ...Storage battery, PC...Photocoupler, D...Light emitting diode, PT...Phototransistor, T...Transistor, A...
lighting equipment.
Claims (1)
接続した蓄電池と、フオトカプラーを構成する発
光ダイオードを上記蓄電池から上記太陽電池への
電流の逆流防止用ダイオードとして設け、上記発
光ダイオードに流れる電流によつて周囲の明るさ
を検知し上記フオトカプラーの出力によつて照明
装置の駆動を制御する制御回路を設けた照明駆動
装置。 A solar cell for driving a load, a storage battery connected in parallel to this solar cell, and a light emitting diode constituting a photocoupler are provided as a diode for preventing backflow of current from the storage battery to the solar cell, and the current flowing through the light emitting diode is Accordingly, a lighting driving device is provided with a control circuit that detects ambient brightness and controls driving of the lighting device based on the output of the photocoupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7975285U JPS61796U (en) | 1985-05-28 | 1985-05-28 | lighting drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7975285U JPS61796U (en) | 1985-05-28 | 1985-05-28 | lighting drive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61796U JPS61796U (en) | 1986-01-07 |
| JPH0326639Y2 true JPH0326639Y2 (en) | 1991-06-10 |
Family
ID=30624956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7975285U Granted JPS61796U (en) | 1985-05-28 | 1985-05-28 | lighting drive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61796U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5574481A (en) * | 1978-11-30 | 1980-06-05 | Seiko Instr & Electronics Ltd | Electron watch with secondary battery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50152120U (en) * | 1974-05-20 | 1975-12-17 | ||
| JPS5477485U (en) * | 1977-11-09 | 1979-06-01 |
-
1985
- 1985-05-28 JP JP7975285U patent/JPS61796U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5574481A (en) * | 1978-11-30 | 1980-06-05 | Seiko Instr & Electronics Ltd | Electron watch with secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61796U (en) | 1986-01-07 |
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