JPS62168746U - - Google Patents
Info
- Publication number
- JPS62168746U JPS62168746U JP5651486U JP5651486U JPS62168746U JP S62168746 U JPS62168746 U JP S62168746U JP 5651486 U JP5651486 U JP 5651486U JP 5651486 U JP5651486 U JP 5651486U JP S62168746 U JPS62168746 U JP S62168746U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- external
- overcurrent prevention
- cathode
- 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
- 230000002265 prevention Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Direct Current Feeding And Distribution (AREA)
Description
第１図は本考案の実施例における逆電圧防止回
路図。第２図は従来の電子機器装置の電源接続図
。第３図はシリコンダイオードの電圧、電流特性
図。
１…過電流防止用ヒユーズ、２…ダイオード、
３…電子機器装置本体。
FIG. 1 is a reverse voltage prevention circuit diagram in an embodiment of the present invention. FIG. 2 is a power supply connection diagram of a conventional electronic device. Figure 3 shows the voltage and current characteristics of a silicon diode. 1... Fuse for overcurrent prevention, 2... Diode,
3...Electronic device main body.
Claims (1)
に於いて、外部直流電源接続端子４，５と直列に
過電流防止用ヒユーズ１の直列回路と並列に前記
外部直流電源接続端子４，５の正電極に接続され
る回路にカソード、前記外部直流電源接続端子４
，５の負電極に接続される回路にアノードがそれ
ぞれ接続されるようダイオード２を接続し、前記
ダイオード２は順方向のスレシユホールド電圧付
近の電圧に於いて、前記過電流防止用ヒユーズ１
を切断するのに十分な電流が流れるよう構成され
たことを特徴とする逆電圧防止回路。 In an electronic device that uses an external DC power supply as a power supply source, the positive terminal of the external DC power supply connection terminal 4, 5 is connected in series with the overcurrent prevention fuse 1 in parallel with the series circuit of the overcurrent prevention fuse 1. The cathode is connected to the circuit connected to the electrode, and the external DC power supply connection terminal 4 is connected to the cathode.
, 5 are connected such that their anodes are connected to the circuits connected to the negative electrodes of the overcurrent prevention fuses 1 at a voltage near the forward threshold voltage.
A reverse voltage prevention circuit characterized in that it is configured to allow sufficient current to flow to disconnect the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5651486U JPS62168746U (en) | 1986-04-15 | 1986-04-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5651486U JPS62168746U (en) | 1986-04-15 | 1986-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62168746U true JPS62168746U (en) | 1987-10-26 |
Family
ID=30885386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5651486U Pending JPS62168746U (en) | 1986-04-15 | 1986-04-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62168746U (en) |
-
1986
- 1986-04-15 JP JP5651486U patent/JPS62168746U/ja active Pending
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