JPS6194128A - Memory back-up device - Google Patents
Memory back-up deviceInfo
- Publication number
- JPS6194128A JPS6194128A JP59216613A JP21661384A JPS6194128A JP S6194128 A JPS6194128 A JP S6194128A JP 59216613 A JP59216613 A JP 59216613A JP 21661384 A JP21661384 A JP 21661384A JP S6194128 A JPS6194128 A JP S6194128A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- memory
- circuit
- power supply
- rechargeable battery
- 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
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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Landscapes
- Direct Current Feeding And Distribution (AREA)
- Exposure Control For Cameras (AREA)
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
／Ｉり発明は、ビデオカメラのメモリーバックアップ装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a memory backup device for a video camera.
従来例の構成とその問題点
従来のビデオカメラにおけるメモリーバックアップ回路
装置を第１図に示す。第１図において、１．２は抵抗、
３曾トランジスタ、４はボタン電池、５はメモリー回路
、６は逆流防止用ダイオードである。まず、トランジス
タ３はスイッチング用として使われカメラ電源（十Ｂ）
が入っている時は、トランジスタ３がオフとなりメモリ
ー回路６にカメラ電源により電圧が供給される。カメラ
電源か切れだ時にはトランジスタ３がオンとなりボタン
電池４により電圧がメモリー回路５に供給される。従っ
てメモリー回路５はカメラ電源が切れた後もボタン電池
４によりメモリー機能をｄたず。Conventional configuration and its problems FIG. 1 shows a memory backup circuit device in a conventional video camera. In Figure 1, 1.2 is the resistance,
3 transistors, 4 a button battery, 5 a memory circuit, and 6 a backflow prevention diode. First, transistor 3 is used for switching and the camera power supply (10B)
When it is on, the transistor 3 is turned off and voltage is supplied to the memory circuit 6 by the camera power supply. When the camera power is cut off, the transistor 3 is turned on and voltage is supplied to the memory circuit 5 by the button battery 4. Therefore, the memory circuit 5 maintains its memory function using the button battery 4 even after the camera power is turned off.
しかしながらこのボタン電池４の寿命に限界かあり、再
度取り換える必要かあるという欠点を有していた。However, this button battery 4 has a drawback in that it has a limited lifespan and may need to be replaced again.
発明の目的
本発明は上記従来の欠点を除去し長寿命の太陽電池を使
ったメモリーバックアップ装置に関するものである。OBJECTS OF THE INVENTION The present invention is directed to a memory backup device using solar cells that eliminates the above-mentioned conventional drawbacks and has a long life.
発明の構成
不発明は太陽電池を使用して電気エイ・ルギーを作り、
充電可能型電池もしくはバックアップ用コンデンサーも
しくはこれら両方を充電してカメラ電源がオフ時にもメ
モリー機能が働くようにしたものである。Composition of the Invention The invention uses solar cells to create electric energy,
This allows the memory function to function even when the camera is turned off by charging a rechargeable battery, a backup capacitor, or both.
実施例の説明
以下本発明の一実施例について図面を参照して説明する
。第２図において、７〜９は逆流防止用ダイオード（以
下ダイオードという）、１０は太陽電池、１１は充電可
能型電池、１１２Ｌは充電可能型電池１１にカメラ電源
の電圧を印加するだめの抵抗で、その一端をダイオード
８，９とメモリー回路６の入力端に接続され、抵抗１１
Δの他端はダイオード７とダイオード８及び充電可能型
電池１１に接続されている。尚、各図において同一部材
には同一番号を付している。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In Fig. 2, 7 to 9 are backflow prevention diodes (hereinafter referred to as diodes), 10 is a solar cell, 11 is a rechargeable battery, and 112L is a resistor for applying the camera power voltage to the rechargeable battery 11. , one end of which is connected to the diodes 8 and 9 and the input end of the memory circuit 6, and a resistor 11
The other end of Δ is connected to diode 7, diode 8, and rechargeable battery 11. In each figure, the same members are given the same numbers.
以上のように構成さｒＬ、六本実施例について、以下そ
の動作を述べる。The operation of the six-piece embodiment configured as described above will be described below.
まず、カメラ電源（十Ｂ）がオン時には、ダイオード９
を介してメモリー回路６に約５ｖの電圧が供給され、メ
モリー回路５が働く。First, when the camera power (10B) is on, diode 9
A voltage of approximately 5V is supplied to the memory circuit 6 via the memory circuit 6, and the memory circuit 5 operates.
又電子ビューファインダーを含むカメラボディ（図示せ
ず）に組み込−！：れた太陽電池１０でもって充電可能
型電池１１も充電される。太陽電池１０及び充電可能型
電池１１は約３ボルトであるのでダイオード８によって
カメラ電源オン時にはこれら電池の電圧は利用されない
。It can also be incorporated into the camera body (not shown) including the electronic viewfinder. : The rechargeable battery 11 is also charged by the solar battery 10. Since the voltage of the solar cell 10 and the rechargeable battery 11 is approximately 3 volts, the voltage of these batteries is not utilized by the diode 8 when the camera is powered on.
カメラ電源が切れると前述の充電可能型電池１１がメモ
リー回路已に放電を開始する。と同時に太陽電池１ｏも
充電可能型電池１１の充電を行ない電圧をメモリー回路
５に供給しメモリー機能をバンクアップする。よってカ
メラ電源が切れだ後もメモリー機能がバックアップされ
る。尚、第３図は充電可能型電池１１のかわりに大容量
の充電用コンテンサー１２を使用した場合で、第２図と
四球の結果か得られる。第４図は充電可能型電池１１と
メモリーバックアップ用充１コンデンサー１２を併用し
た他の実施例を示すもので、第２図に示す太陽電池１０
とメモリー回路５と間に、ダイオード１３．１４を直列
接続し、この接続点に充電用コンデンサー１２の一端を
接続し、他端を接地（−７で構成したものである。本実
施例においては、カメラ電源がオフとなった後も、太陽
電池１０又は充電可能型電池１１又はメモリーバンクア
ップ用充電型コンデンサ１２から印加される電圧により
、メモリー回路５のメモリー機能がバックアップさｎる
。When the camera power is turned off, the aforementioned rechargeable battery 11 starts discharging along with the memory circuit. At the same time, the solar cell 1o also charges the rechargeable battery 11 and supplies voltage to the memory circuit 5 to bank up the memory function. Therefore, the memory function is backed up even after the camera power is turned off. Incidentally, FIG. 3 shows a case where a large-capacity charging condenser 12 is used instead of the rechargeable battery 11, and the same result as in FIG. 2 is obtained. FIG. 4 shows another embodiment in which a rechargeable battery 11 and a memory backup charging capacitor 12 are used together, and the solar cell 10 shown in FIG.
Diodes 13 and 14 are connected in series between the diodes 13 and the memory circuit 5, one end of the charging capacitor 12 is connected to this connection point, and the other end is grounded (-7). Even after the camera power is turned off, the memory function of the memory circuit 5 is backed up by the voltage applied from the solar cell 10, the rechargeable battery 11, or the memory bank-up rechargeable capacitor 12.
発明の効果
以上のように本発明は長寿命の太陽電池を利用してメモ
リー回路のバックアップを行うので従来のボタン電池を
使った時よりも安定したメモリーバック機能が得られる
ものである。Effects of the Invention As described above, the present invention uses a long-life solar cell to back up the memory circuit, so it can provide a more stable memory back function than when using a conventional button battery.
第１図は従来のメモリーバックアップ装置の回路図、第
２図は本発明の一実施例におけるメモリーバックアップ
装置の回路図、第３図、第４図は他の実施例の回路図で
ある。
５・・・・・・メモリー回路、１０・・・・・・太陽電
池、１１・・・・・・充電可能型電池、１２・・・・・
・メモリーバックアップ用充電用コンデンサー。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名欲
２ 図
第 ３ 図FIG. 1 is a circuit diagram of a conventional memory backup device, FIG. 2 is a circuit diagram of a memory backup device in one embodiment of the present invention, and FIGS. 3 and 4 are circuit diagrams of other embodiments. 5...Memory circuit, 10...Solar cell, 11...Rechargeable battery, 12...
・Charging capacitor for memory backup. Name of agent: Patent attorney Toshio Nakao and one other person
2 Figure 3
Claims (1)
れた太陽電池で、充電可能型電池あるいはメモリーバッ
クアップ用充電型コンデンサーあるいはこれら両方を充
電し、カメラ電源がオフ時に、前記充電可能型電池ある
いは前記メモリーバックアップ用充電型コンデンサーあ
るいはこれら両方と、太陽電池とでメモリー機能をバッ
クアップするメモリーバックアップ装置。A solar battery built into the camera body, including the electronic viewfinder, charges a rechargeable battery and/or a memory backup rechargeable capacitor, and charges the rechargeable battery or memory backup capacitor when the camera is powered off. A memory backup device that backs up memory functions using a type capacitor or both of these and a solar cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59216613A JPS6194128A (en) | 1984-10-16 | 1984-10-16 | Memory back-up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59216613A JPS6194128A (en) | 1984-10-16 | 1984-10-16 | Memory back-up device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6194128A true JPS6194128A (en) | 1986-05-13 |
Family
ID=16691168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59216613A Pending JPS6194128A (en) | 1984-10-16 | 1984-10-16 | Memory back-up device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6194128A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01113738A (en) * | 1987-10-27 | 1989-05-02 | Kyocera Corp | Automatic film rewinding device for camera |
| JP2001127686A (en) * | 1999-10-25 | 2001-05-11 | Nec Saitama Ltd | Mobile communication terminal with generator |
| JP2003295275A (en) * | 2002-03-29 | 2003-10-15 | Nikon Corp | Power source circuit for camera system |
| WO2016152264A1 (en) * | 2015-03-24 | 2016-09-29 | 古野電気株式会社 | Power supply device |
-
1984
- 1984-10-16 JP JP59216613A patent/JPS6194128A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01113738A (en) * | 1987-10-27 | 1989-05-02 | Kyocera Corp | Automatic film rewinding device for camera |
| JP2001127686A (en) * | 1999-10-25 | 2001-05-11 | Nec Saitama Ltd | Mobile communication terminal with generator |
| JP2003295275A (en) * | 2002-03-29 | 2003-10-15 | Nikon Corp | Power source circuit for camera system |
| WO2016152264A1 (en) * | 2015-03-24 | 2016-09-29 | 古野電気株式会社 | Power supply device |
| JPWO2016152264A1 (en) * | 2015-03-24 | 2017-12-28 | 古野電気株式会社 | Power supply |
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