JPH0244779U - - Google Patents

Info

Publication number
JPH0244779U
JPH0244779U JP12329188U JP12329188U JPH0244779U JP H0244779 U JPH0244779 U JP H0244779U JP 12329188 U JP12329188 U JP 12329188U JP 12329188 U JP12329188 U JP 12329188U JP H0244779 U JPH0244779 U JP H0244779U
Authority
JP
Japan
Prior art keywords
voltage
led element
control device
solar cell
turned
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
JP12329188U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP12329188U priority Critical patent/JPH0244779U/ja
Publication of JPH0244779U publication Critical patent/JPH0244779U/ja
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Landscapes

  • Illuminated Signs And Luminous Advertising (AREA)

Description

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

第１図はこの考案の一実施例を示すＬＥＤ表示
制御装置の概略的ブロツク図、第２図は上記ＬＥ
Ｄ表示制御装置の具体的回路構成図、第３図は上
記ＬＥＤ表示制御装置の動作を説明するためのグ
ラフ図である。 図中、１はＬＥＤ素子、３は電流制限回路、３
ｂはトランジスタ（ＦＥＴ）、３ｃは抵抗回路、
４は室内明るさ検出器、４ａは太陽電池である。 FIG. 1 is a schematic block diagram of an LED display control device showing an embodiment of this invention, and FIG.
A specific circuit configuration diagram of the D display control device, and FIG. 3 is a graph diagram for explaining the operation of the LED display control device. In the figure, 1 is an LED element, 3 is a current limiting circuit, 3
b is a transistor (FET), 3c is a resistance circuit,
4 is an indoor brightness detector, and 4a is a solar cell.

Claims (1)

【実用新案登録請求の範囲】 (1) 各種電気機器に用いられる表示装置として
のＬＥＤ素子を発光制御する制御装置において、 室内の明るさを検出する明るさ検出手段と、 その明るさに応じて前記ＬＥＤ素子の電流を制御
する電流制限手段とを備え、 前記室内が暗くなつた場合には前記ＬＥＤ素子
に流れる電流値を小さくし、明るくなつた場合に
はその電流値を大きくするようにしたことを特徴
とするＬＥＤ表示制御装置。 (2) 前記検出手段は前記室内の明るさに応じた
電圧を発生する太陽電池であり、前記電流制限手
段はその太陽電池の発生する電圧に応じてＯＮ、
ＯＦＦするトランジスタ回路とこのトランジスタ
のＯＮ、ＯＦＦにて抵抗値を変える抵抗回路とか
ら構成され、前記抵抗回路は前記ＬＥＤ素子と直
列に接続され、 前記抵抗回路の抵抗値は、前記太陽電池の発生
する電圧が高いときには小さく、低いときには大
きくなるようにした請求項(1)記載のＬＥＤ表示
制御装置。[Scope of Claim for Utility Model Registration] (1) In a control device for controlling the light emission of an LED element as a display device used in various electrical appliances, a brightness detection means for detecting indoor brightness, and and current limiting means for controlling the current of the LED element, the current value flowing through the LED element is reduced when the room becomes dark, and the current value is increased when the room becomes bright. An LED display control device characterized by: (2) The detection means is a solar cell that generates a voltage depending on the brightness of the room, and the current limiting means is turned on or off according to the voltage generated by the solar cell.
It is composed of a transistor circuit that is turned off and a resistance circuit that changes its resistance value when the transistor is turned on and off, the resistance circuit is connected in series with the LED element, and the resistance value of the resistance circuit is determined by the generation of the solar cell. 2. The LED display control device according to claim 1, wherein the voltage is small when the voltage is high, and large when the voltage is low.
JP12329188U 1988-09-20 1988-09-20 Pending JPH0244779U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12329188U JPH0244779U (en) 1988-09-20 1988-09-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12329188U JPH0244779U (en) 1988-09-20 1988-09-20

Publications (1)

Publication Number Publication Date
JPH0244779U true JPH0244779U (en) 1990-03-28

Family

ID=31372010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12329188U Pending JPH0244779U (en) 1988-09-20 1988-09-20

Country Status (1)

Country Link
JP (1) JPH0244779U (en)

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