JPH0322831A - Power supply circuit - Google Patents
Power supply circuitInfo
- Publication number
- JPH0322831A JPH0322831A JP15780189A JP15780189A JPH0322831A JP H0322831 A JPH0322831 A JP H0322831A JP 15780189 A JP15780189 A JP 15780189A JP 15780189 A JP15780189 A JP 15780189A JP H0322831 A JPH0322831 A JP H0322831A
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- battery
- diode
- transistor
- power supply
- 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
- 230000010355 oscillation Effects 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電源回路、特に蓄電池接続時の誤接続を警報し
、またこの時蓄電池電圧が規定値以上であることが確認
できる電源回路に関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a power supply circuit, and particularly to a power supply circuit that warns of incorrect connection when connecting a storage battery, and that can confirm that the voltage of the storage battery is above a specified value at this time. .
従来の技術
従来、小形電気機器に使用される電源回路は、第２図の
ように構戒されて出力コードを設けており、その先端に
ジャックを接続したものが一般的である。この種のジャ
ックには２種類あり極性を誤る場合がある。また、極性
を誤って蓄電池を接続しても直ちにわからず蓄電池をい
ためたり、機器内部の電子部品を破壊するなどの欠点が
ある。BACKGROUND OF THE INVENTION Conventionally, power supply circuits used in small electric appliances are generally equipped with an output cord as shown in FIG. 2, and a jack is connected to the tip of the output cord. There are two types of jacks of this type, and the polarity may be incorrect. Furthermore, even if a storage battery is connected with the wrong polarity, it may not be noticed immediately and the storage battery may be damaged or electronic components inside the device may be destroyed.
発明が解決しようとする課題
本発明は前記の欠点を改善するもので、電池接続時に極
性を誤ることなく蓄電池を接続できる電源回路を提供す
ることにある。Problems to be Solved by the Invention The present invention aims to improve the above-mentioned drawbacks, and it is an object of the present invention to provide a power supply circuit that can connect a storage battery without making a mistake in polarity when connecting the battery.
課題を解決するための手段
本発明は前記の欠点を解決するため、着脱可能な蓄電池
と、該蓄電池と負荷との間に順方向に接続される第１の
ダイオードと、前記蓄電池の正極に負極が接続される第
２のダイオードに複数のトランジスタと電子ブザーとを
接続して低周波発振回路を形威し、蓄電池が逆接続され
た時に電子ブザーにより警報を発生するよう構威したも
のである。Means for Solving the Problems In order to solve the above-mentioned drawbacks, the present invention provides a removable storage battery, a first diode connected in the forward direction between the storage battery and a load, and a negative electrode connected to the positive electrode of the storage battery. A low-frequency oscillation circuit is created by connecting multiple transistors and an electronic buzzer to the second diode connected to the battery, and the electronic buzzer generates an alarm when the storage battery is reversely connected. .
作用
このような構成であれば、誤って蓄電池を誤接続した場
合でも電子ブザーが警報を発するので、誤りに気づき直
ちに正しい接続に戻すことができ、蓄電池および電子部
品の損傷を防止できる。Effect: With this configuration, even if the storage battery is connected incorrectly, the electronic buzzer will issue an alarm, so the user can immediately restore the correct connection after noticing the error, and damage to the storage battery and electronic components can be prevented.
実施例 次に本発明の実施例を説明する。Example Next, embodiments of the present invention will be described.
第１図はトランスＴ１の１次側に商用電源を接続し、２
次側には整流器Ｄ１の２次側を接続すると共に平滑コン
デンサＣ１を介して抵抗Ｒ１を接続し、これに負荷Ｌと
蓄電池Ｂとを並列に接続した電源回路である。さらに蓄
電池Ｂの負極に抵抗Ｒ４，抵抗Ｒ３を介してトランジス
タＱ１のベースに接続し、さらにトランジスタＱ１のコ
レクタをトランジスタＱ２のベースに接続して増幅され
た電流が電子ブザーＢＺに流れるようにしている。Figure 1 shows a commercial power supply connected to the primary side of transformer T1,
The next side is a power supply circuit in which the secondary side of the rectifier D1 is connected, a resistor R1 is connected via a smoothing capacitor C1, and a load L and a storage battery B are connected in parallel to this. Further, the negative electrode of storage battery B is connected to the base of transistor Q1 via resistor R4 and resistor R3, and the collector of transistor Q1 is further connected to the base of transistor Q2 so that the amplified current flows to electronic buzzer BZ. .
また、抵抗Ｒ２．コンデンサＣ２により電子ブザーＢＺ
の音量を調節するようにＬ７ている。この電源回路にお
いては第２のダイオードＤ２が蓄電池Ｂに対して電池電
流を阻止する方向に接続されているから、電池Ｂが正常
に接続されている場合は蓄電池の消耗はなく、蓄電池Ｂ
から見て開放状態になっている。しかしながら、蓄電池
Ｂが逆接続された場合、第２のダイオードＤ２は電池に
対して順方向に接続されるので、トランジスタＱ１のベ
ースに電圧がかかってトランジスタＱ１がＯ Ｎし、ト
ランジスタＱ２には増幅された電流が流れることになり
、電子ブザーＢＺを鳴らし警報を発することになる。Also, resistor R2. Electronic buzzer BZ by capacitor C2
Press L7 to adjust the volume. In this power supply circuit, the second diode D2 is connected to the storage battery B in a direction that blocks the battery current, so if the battery B is connected normally, there is no consumption of the storage battery, and the storage battery B
It is in an open state when viewed from above. However, when the storage battery B is reversely connected, the second diode D2 is connected in the forward direction with respect to the battery, so a voltage is applied to the base of the transistor Q1, turning the transistor Q1 ON, and the transistor Q2 is amplified. This causes the current to flow, causing the electronic buzzer BZ to sound and an alarm to be issued.
また、蓄電池Ｂの電圧が低下しても負荷が正常に動作で
きるよう抵抗Ｒ４を設定し、発光素子ＬＥＤが点灯する
ようにしている。この場合、正常な蓄電池を逆接続する
と、発光素子ＬＥＤが点灯し、逆接続されたことを表示
すると共に蓄電ｒｌｉの電圧がまだ使用できる値にある
ことを示すこともできる。Further, the resistor R4 is set so that the load can operate normally even if the voltage of the storage battery B decreases, and the light emitting element LED is turned on. In this case, when a normal storage battery is reversely connected, the light emitting element LED lights up to indicate that the reverse connection has been made and also to indicate that the voltage of the storage rli is still at a usable value.
発明の効果
本発明は上述のように蓄電池接続時に蓄電池の極性を誤
りなく正常に接続できる電源回路を得ることができると
共に蓄電池接続時に電圧が容易に確認できる効果がある
。Effects of the Invention As described above, the present invention has the advantage that it is possible to obtain a power supply circuit in which the polarity of the storage battery can be correctly connected without error when the storage battery is connected, and the voltage can be easily checked when the storage battery is connected.
第１図は本発明の一実施例を示す充電回路図であり、第
２図は従来の充電回路図である。
Ｔ・・・・・・トランス、Ｄ１・・・・・・整流器、Ｑ
１およびＱ２・・・・・・トランジスタ、Ｃ１およびＣ
２・・・・・・コンデンサ、Ｄ２〜Ｄ３・・・・・・ダ
イオード、ＬＥＤ・・・・・・表示ランプ、ＢＺ・・・
・・・警報ブザー、Ｒ１〜Ｒ４・・・・・・抵抗、Ｂ・
・・・・・蓄電池。FIG. 1 is a charging circuit diagram showing one embodiment of the present invention, and FIG. 2 is a conventional charging circuit diagram. T...Transformer, D1...Rectifier, Q
1 and Q2...transistor, C1 and C
2... Capacitor, D2-D3... Diode, LED... Display lamp, BZ...
...Alarm buzzer, R1-R4...Resistance, B.
...Storage battery.
Claims (1)
と負荷との間に順方向に接続された第１のダイオードと
、前記蓄電池の正極に負極が接続される第２のダイオー
ドと、前記蓄電池の負極との間に複数のトランジスタと
電子ブザーを組合せた警報回路を設け、前記蓄電池の逆
接続により警報を発生することを特徴とする電源回路。In a circuit connecting a storage battery, a first diode connected in a forward direction between a removable storage battery and a load, a second diode whose negative electrode is connected to a positive electrode of the storage battery, and a negative electrode of the storage battery. A power supply circuit characterized in that an alarm circuit combining a plurality of transistors and an electronic buzzer is provided between the power supply circuits and generates an alarm when the storage battery is reversely connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15780189A JPH0322831A (en) | 1989-06-20 | 1989-06-20 | Power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15780189A JPH0322831A (en) | 1989-06-20 | 1989-06-20 | Power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0322831A true JPH0322831A (en) | 1991-01-31 |
Family
ID=15657587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15780189A Pending JPH0322831A (en) | 1989-06-20 | 1989-06-20 | Power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0322831A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5229039A (en) * | 1988-11-11 | 1993-07-20 | International Business Machines Corporation | Color liquid crystal display and method of manufacture |
| US5930211A (en) * | 1995-10-19 | 1999-07-27 | Sony Corporation | Tracking servo apparatus for optical disc |
| JP2009062760A (en) * | 2007-09-07 | 2009-03-26 | Techno Pro Kk | Soundproof house for tunnel |
| WO2011039616A1 (en) * | 2009-10-02 | 2011-04-07 | パナソニック電工株式会社 | Power distribution device and power distribution system using same |
| JP2011083045A (en) * | 2009-10-02 | 2011-04-21 | Panasonic Electric Works Co Ltd | Power distribution device and power distribution system using the same |
| JP2022081423A (en) * | 2020-11-19 | 2022-05-31 | 深▲せん▼市華思旭科技有限公司 | Smart connection device, starting power supply, and battery clamp |
| JP2022081465A (en) * | 2020-11-19 | 2022-05-31 | 深▲せん▼市華思旭科技有限公司 | Smart connection device, start power supply, and battery clamp |
-
1989
- 1989-06-20 JP JP15780189A patent/JPH0322831A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5229039A (en) * | 1988-11-11 | 1993-07-20 | International Business Machines Corporation | Color liquid crystal display and method of manufacture |
| US5930211A (en) * | 1995-10-19 | 1999-07-27 | Sony Corporation | Tracking servo apparatus for optical disc |
| JP2009062760A (en) * | 2007-09-07 | 2009-03-26 | Techno Pro Kk | Soundproof house for tunnel |
| WO2011039616A1 (en) * | 2009-10-02 | 2011-04-07 | パナソニック電工株式会社 | Power distribution device and power distribution system using same |
| JP2011083045A (en) * | 2009-10-02 | 2011-04-21 | Panasonic Electric Works Co Ltd | Power distribution device and power distribution system using the same |
| CN102906951A (en) * | 2009-10-02 | 2013-01-30 | 松下电器产业株式会社 | Power distribution device and power distribution system using same |
| US9236790B2 (en) | 2009-10-02 | 2016-01-12 | Panasonic Corporation | Power distribution device and power distribution system using same |
| JP2022081423A (en) * | 2020-11-19 | 2022-05-31 | 深▲せん▼市華思旭科技有限公司 | Smart connection device, starting power supply, and battery clamp |
| JP2022081465A (en) * | 2020-11-19 | 2022-05-31 | 深▲せん▼市華思旭科技有限公司 | Smart connection device, start power supply, and battery clamp |
| US11979045B2 (en) | 2020-11-19 | 2024-05-07 | Shenzhen Carku Technology Co., Limited | Smart connection device, jump starter, and battery clamp |
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