JPS63133731U - - Google Patents
Info
- Publication number
- JPS63133731U JPS63133731U JP2614787U JP2614787U JPS63133731U JP S63133731 U JPS63133731 U JP S63133731U JP 2614787 U JP2614787 U JP 2614787U JP 2614787 U JP2614787 U JP 2614787U JP S63133731 U JPS63133731 U JP S63133731U
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- transistor
- series
- diode
- 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
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 8
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案の一実施例を示した電気回路図
、第２図は第１図の動作説明のための電圧波形図
、第３図は従来のパワーオンクリア回路の一例を
示した電気回路図、第４図は第３図の動作説明の
ための電圧波形図、第５図は従来のパワーオンク
リア回路の他の例を示したブロツク図、第６図は
第５図は動作説明のための電圧波形図、第７図は
従来回路による動作の不都合を説明するための電
圧波形図である。
Ｄ１……ダイオード、Ｃ１……第１のコンデン
サ、Ｔ１……第１のトランジスタ、Ｔ２……第２
のトランジスタ、Ｃ２……第２のコンデンサ。
Fig. 1 is an electric circuit diagram showing an embodiment of the present invention, Fig. 2 is a voltage waveform diagram for explaining the operation of Fig. 1, and Fig. 3 is an electric circuit diagram showing an example of a conventional power-on clear circuit. The circuit diagram, Figure 4 is a voltage waveform diagram for explaining the operation of Figure 3, Figure 5 is a block diagram showing another example of the conventional power-on clear circuit, Figure 6 is a diagram for explaining the operation. FIG. 7 is a voltage waveform diagram for explaining the disadvantages of the operation of the conventional circuit. D 1 ... diode, C 1 ... first capacitor, T 1 ... first transistor, T 2 ... second
transistor, C 2 . . . second capacitor.
Claims (1)
このダイオードに直列に接続した第１のコンデン
サと、電源電圧をベース入力とし第１のコンデン
サの充電電圧によつて動作する第１のトランジス
タと、電源間に直列接続した抵抗および第２のコ
ンデンサと、この第２のコンデンサに並列に接続
してあり第１のトランジスタの動作に伴つてオン
になつて第２のコンデンサの充電電荷を放電する
第２のトランジスタとからなるパワーオンクリア
回路。 A diode connected in the forward direction to the power supply,
A first capacitor connected in series to this diode, a first transistor whose base input is a power supply voltage and is operated by the charging voltage of the first capacitor, and a resistor and a second capacitor connected in series between the power supplies. , and a second transistor connected in parallel to the second capacitor and turned on in accordance with the operation of the first transistor to discharge the charge in the second capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2614787U JPS63133731U (en) | 1987-02-24 | 1987-02-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2614787U JPS63133731U (en) | 1987-02-24 | 1987-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63133731U true JPS63133731U (en) | 1988-09-01 |
Family
ID=30826955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2614787U Pending JPS63133731U (en) | 1987-02-24 | 1987-02-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63133731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503559A (en) * | 2015-01-15 | 2015-04-08 | 无锡职业技术学院 | Latch-up effect resisting microprocessor reset circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5340722B2 (en) * | 1974-09-07 | 1978-10-28 |
-
1987
- 1987-02-24 JP JP2614787U patent/JPS63133731U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5340722B2 (en) * | 1974-09-07 | 1978-10-28 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503559A (en) * | 2015-01-15 | 2015-04-08 | 无锡职业技术学院 | Latch-up effect resisting microprocessor reset circuit |
| WO2016112744A1 (en) * | 2015-01-15 | 2016-07-21 | 无锡职业技术学院 | Anti-latch-up effect microprocessor reset circuit |
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