JPH0272637U - - Google Patents
Info
- Publication number
- JPH0272637U JPH0272637U JP14902588U JP14902588U JPH0272637U JP H0272637 U JPH0272637 U JP H0272637U JP 14902588 U JP14902588 U JP 14902588U JP 14902588 U JP14902588 U JP 14902588U JP H0272637 U JPH0272637 U JP H0272637U
- Authority
- JP
- Japan
- Prior art keywords
- battery
- terminal
- voltage
- input terminal
- reverse
- 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
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図はこの考案の一実施例を示す逆直流電源
電圧の回路図、第２図はタングステンランプとシ
ヨツトキーバリヤダイオードをケースに格納した
図、第３図ａ，ｂ，ｃは従来例の逆電圧保護回路
である。
図において、１は電池、２は回路のプラス入力
端子、３は回路のマイナス入力端子、４はスイツ
チ、５はダイオード、６は保護回路、８は抵抗、
９はシヨツトキーバリヤダイオード、１０はタン
グステンランプである。なお、図中同一符号は同
一又は相当部分を示す。
Fig. 1 is a circuit diagram of a reverse DC power supply voltage showing an embodiment of this invention, Fig. 2 is a diagram of a tungsten lamp and a shot key barrier diode housed in a case, and Fig. 3 a, b, and c are conventional examples. This is a reverse voltage protection circuit. In the figure, 1 is a battery, 2 is a positive input terminal of the circuit, 3 is a negative input terminal of the circuit, 4 is a switch, 5 is a diode, 6 is a protection circuit, 8 is a resistor,
9 is a shot key barrier diode, and 10 is a tungsten lamp. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
力端子に逆電圧が印加されないようにして、電気
部品を保護し、電池の電圧が印加されるプラス端
子及びマイナス端子を有した入力端と、所望の電
圧を出力する出力端子を有する装置の回路におい
て、 前記入力端に接続され、前記電池のプラス端子
が前記入力端子のプラス端子に接続され、電池の
電圧が正常に印加されたときは電気抵抗はほとん
ど変化せず、かつ温度が高くならないと共に、電
池の電圧を下降させずに出力させ、又電池のプラ
ス端子が前記入力端のマイナス端子に接続される
逆接続時には、極端に大きくはない電流が流れ、
その結果、温度が上昇して電気抵抗が高くなり、
かつ発光するタングステンランプと、 前記タングステンランプの出力端子にカソード
側を接続し、前記入力端子のマイナス端子にアノ
ードを接続し、前記電池を正常に接続したときに
は、何の妨害もせず、しかし前記電池が逆に接続
されたときには短絡状態になるダイオードと、 を備えたことを特徴とする逆直流電源電圧保護装
置。[Claims for Utility Model Registration] Protection of electrical components by preventing reverse voltage from being applied to the power input terminals of electrical components in a load circuit using a battery as a power source, and positive and negative terminals to which battery voltage is applied. In a circuit of a device having an input terminal having an input terminal and an output terminal outputting a desired voltage, the positive terminal of the battery connected to the input terminal is connected to the positive terminal of the input terminal, and the voltage of the battery is normal. When the voltage is applied to the input terminal, the electrical resistance hardly changes, the temperature does not rise, and the voltage of the battery is output without dropping. Also, the positive terminal of the battery is connected to the negative terminal of the input terminal, which is a reverse connection. Sometimes, a current that is not extremely large flows,
As a result, the temperature rises and the electrical resistance increases,
and a tungsten lamp that emits light; the cathode side is connected to the output terminal of the tungsten lamp, the anode is connected to the negative terminal of the input terminal, and when the battery is connected normally, there is no interference, but the battery A reverse DC power supply voltage protection device comprising: a diode that becomes short-circuited when connected in reverse;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14902588U JPH0272637U (en) | 1988-11-17 | 1988-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14902588U JPH0272637U (en) | 1988-11-17 | 1988-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0272637U true JPH0272637U (en) | 1990-06-04 |
Family
ID=31420875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14902588U Pending JPH0272637U (en) | 1988-11-17 | 1988-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0272637U (en) |
-
1988
- 1988-11-17 JP JP14902588U patent/JPH0272637U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0272637U (en) | ||
| JPS6033506Y2 (en) | lamp drive circuit | |
| JPH0229441Y2 (en) | ||
| JPH0317471Y2 (en) | ||
| JPS6125322Y2 (en) | ||
| SU1198498A1 (en) | D.c.voltage supply source with protection | |
| SU830459A1 (en) | Device for signalling dc network load state | |
| JPH0268525U (en) | ||
| KR960007922Y1 (en) | Support power circuit for charging battery | |
| SU928325A1 (en) | Dc voltage stabilizer | |
| SU546867A1 (en) | DC Voltage Regulator | |
| SU1527626A1 (en) | Pulsed dc voltage stabilizer | |
| JPS62185429U (en) | ||
| JPS58101218U (en) | DC stabilized power supply circuit | |
| JPS5857970U (en) | Battery check circuit | |
| JPH0190240U (en) | ||
| JPS6416133U (en) | ||
| JPH02119394U (en) | ||
| JPS58184928U (en) | Electronic switch protection circuit | |
| JPH03117377U (en) | ||
| JPS60174424A (en) | Control device for gas equipment | |
| JPH0397348U (en) | ||
| JPH0186476U (en) | ||
| JPS63174557A (en) | Constant-voltage output circuit | |
| JPH03101137U (en) |