JPH03100916U - - Google Patents
Info
- Publication number
- JPH03100916U JPH03100916U JP782890U JP782890U JPH03100916U JP H03100916 U JPH03100916 U JP H03100916U JP 782890 U JP782890 U JP 782890U JP 782890 U JP782890 U JP 782890U JP H03100916 U JPH03100916 U JP H03100916U
- Authority
- JP
- Japan
- Prior art keywords
- input terminal
- voltage level
- voltage power
- power supply
- constant voltage
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Control Of Electrical Variables (AREA)
- Control Of Voltage And Current In General (AREA)
Description
第１図は本考案の第１の実施例の回路図、第２
図は本考案の第２の実施例の回路図、第３図は本
考案の第３の実施例の回路図、第４図は従来の一
例の回路図である。
１……入力端子、６……バイパス回路。
Figure 1 is a circuit diagram of the first embodiment of the present invention;
The figure is a circuit diagram of a second embodiment of the present invention, FIG. 3 is a circuit diagram of a third embodiment of the present invention, and FIG. 4 is a circuit diagram of a conventional example. 1...Input terminal, 6...Bypass circuit.
Claims (1)
レベルが一定の電圧レベル範囲を越えたときに該
入力端子と該電圧電源とを接続するスイツチング
素子を介して接続し、該入力端子の電圧レベルが
該一定の電圧レベル範囲内となるようにして、該
入力端子に接続された回路を過電圧から保護する
保護回路において、 前記定電圧電源の電圧レベルが予め決められた
所定レベル範囲を越えたとき、前記定電圧電源を
バイパスして、前記定電圧電源の電圧レベルを該
所定レベル範囲内に保持するバイパス回路を具備
してなる保護回路。[Claims for Utility Model Registration] An input terminal and a constant voltage power source are connected via a switching element that connects the input terminal and the voltage power source when the voltage level of the input terminal exceeds a certain voltage level range. a protection circuit that protects a circuit connected to the input terminal from overvoltage by connecting the input terminal so that the voltage level of the input terminal falls within the certain voltage level range, the voltage level of the constant voltage power supply being predetermined; A protection circuit comprising: a bypass circuit that bypasses the constant voltage power supply and maintains the voltage level of the constant voltage power supply within the predetermined level range when the voltage level exceeds a predetermined level range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP782890U JPH03100916U (en) | 1990-01-30 | 1990-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP782890U JPH03100916U (en) | 1990-01-30 | 1990-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03100916U true JPH03100916U (en) | 1991-10-22 |
Family
ID=31511482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP782890U Pending JPH03100916U (en) | 1990-01-30 | 1990-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03100916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006304675A (en) * | 2005-04-28 | 2006-11-09 | Daiwa Seiko Inc | Fishing spinning reel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63228309A (en) * | 1987-03-18 | 1988-09-22 | Toshiba Corp | Semiconductor integrated circuit |
| JPH01192158A (en) * | 1988-01-28 | 1989-08-02 | Sumitomo Electric Ind Ltd | Input protective circuit of semiconductor device |
-
1990
- 1990-01-30 JP JP782890U patent/JPH03100916U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63228309A (en) * | 1987-03-18 | 1988-09-22 | Toshiba Corp | Semiconductor integrated circuit |
| JPH01192158A (en) * | 1988-01-28 | 1989-08-02 | Sumitomo Electric Ind Ltd | Input protective circuit of semiconductor device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006304675A (en) * | 2005-04-28 | 2006-11-09 | Daiwa Seiko Inc | Fishing spinning reel |
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