JPS6047328U - Power-on reset circuit - Google Patents
Power-on reset circuitInfo
- Publication number
- JPS6047328U JPS6047328U JP13959783U JP13959783U JPS6047328U JP S6047328 U JPS6047328 U JP S6047328U JP 13959783 U JP13959783 U JP 13959783U JP 13959783 U JP13959783 U JP 13959783U JP S6047328 U JPS6047328 U JP S6047328U
- Authority
- JP
- Japan
- Prior art keywords
- power
- reset
- reset circuit
- reference voltage
- capacitor
- 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.)
- Granted
Links
Landscapes
- Electronic Switches (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、従来装置の一例の構成を示す回路構成図、第
２図および第３図は回倒を説明するための波形図、第４
図および第５図は従来装置の他の一例の構成を示す回路
構成図、第６図は本考案の゛一実施例の構成を示す回路
構成図である。
Ｃ２，Ｃ３・・・・・・コンパレータ、Ｑ１〜Ｑ７・・
曲トランジスタ、Ｃｏ５ｃ・・・・・・コンデンサ、Ｄ
２゜Ｄ３・・・・・・ダイオード、Ｒ１−Ｒ６・・・・
・・抵抗。FIG. 1 is a circuit configuration diagram showing the configuration of an example of a conventional device, FIGS. 2 and 3 are waveform diagrams for explaining rotation, and FIG.
5 and 5 are circuit configuration diagrams showing the configuration of another example of the conventional device, and FIG. 6 is a circuit configuration diagram showing the configuration of one embodiment of the present invention. C2, C3...Comparator, Q1~Q7...
Curved transistor, Co5c... Capacitor, D
2゜D3...Diode, R1-R6...
··resistance.
Claims (1)
記コンデンサの端子電圧を基準電圧と比較して電源投入
時のリセット信号を得るパワーオンリセット回路におい
て、電源投入時のリセット解除出力に応動して該リセッ
ト解除時以前の上記基準電圧を定常動作時より高くする
ように上記基準電圧を切り換える手段と、同リセット解
除出力□ に応動して該リセット解除時以前の上記発
振動作を阻止する手段とを具備したことを特徴とするパ
ワーオンリセット回路。In a power-on reset circuit that obtains a reset signal at power-on by comparing the terminal voltage of the capacitor with a reference voltage of an oscillator that performs oscillation operation using a capacitor and a resistor, the power-on reset circuit obtains a reset signal at power-on. A means for switching the reference voltage so that the reference voltage before the reset is released is higher than that during normal operation, and a means for blocking the oscillation operation before the reset is released in response to the reset release output □. A power-on reset circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13959783U JPS6047328U (en) | 1983-09-10 | 1983-09-10 | Power-on reset circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13959783U JPS6047328U (en) | 1983-09-10 | 1983-09-10 | Power-on reset circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6047328U true JPS6047328U (en) | 1985-04-03 |
| JPH032997Y2 JPH032997Y2 (en) | 1991-01-25 |
Family
ID=30312830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13959783U Granted JPS6047328U (en) | 1983-09-10 | 1983-09-10 | Power-on reset circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047328U (en) |
-
1983
- 1983-09-10 JP JP13959783U patent/JPS6047328U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH032997Y2 (en) | 1991-01-25 |
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