JPS61158869U - - Google Patents
Info
- Publication number
- JPS61158869U JPS61158869U JP926284U JP926284U JPS61158869U JP S61158869 U JPS61158869 U JP S61158869U JP 926284 U JP926284 U JP 926284U JP 926284 U JP926284 U JP 926284U JP S61158869 U JPS61158869 U JP S61158869U
- Authority
- JP
- Japan
- Prior art keywords
- detection means
- power supply
- monitoring circuit
- supply monitoring
- reference 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
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
第１図は本考案に係る電源監視回路の一実施例
を示す回路図であり、第２図及び第３図は本考案
の他の実施例を示す回路図である。第４図及び第
５図は本考案の電源監視回路の動作を説明する為
の波形図である。
１：電源端子、２：接地端子、３：出力端子、
４：電圧源、５：コンデンサ、６：基準電圧源、
７：比較器。
FIG. 1 is a circuit diagram showing one embodiment of a power supply monitoring circuit according to the present invention, and FIGS. 2 and 3 are circuit diagrams showing other embodiments of the present invention. 4 and 5 are waveform diagrams for explaining the operation of the power supply monitoring circuit of the present invention. 1: Power terminal, 2: Ground terminal, 3: Output terminal,
4: Voltage source, 5: Capacitor, 6: Reference voltage source,
7: Comparator.
Claims (1)
れたコンデンサ、該基準電圧源と電源電圧の変動
に応じた電圧源の電位とを比較して該電圧源の電
位が該基準電圧源の電位より抵下したことを検出
する検出手段を具え、該検出手段から得られる出
力が該コンデンサの充電々圧によることを特徴と
する電源監視回路。 (2) 該検出手段が比較器である実用新案登録請
求の範囲第１項記載の電源監視回路。 (3) 該検出手段がトランジスタである実用新案
登録請求の範囲第１項記載の電源監視回路。[Claims for Utility Model Registration] (1) A reference voltage source, a capacitor connected in parallel with the reference voltage source; 1. A power supply monitoring circuit comprising a detection means for detecting that the potential of a power source has dropped below the potential of the reference voltage source, and an output obtained from the detection means is based on a charging voltage of the capacitor. (2) The power supply monitoring circuit according to claim 1, wherein the detection means is a comparator. (3) The power supply monitoring circuit according to claim 1, wherein the detection means is a transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP926284U JPS61158869U (en) | 1984-01-26 | 1984-01-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP926284U JPS61158869U (en) | 1984-01-26 | 1984-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61158869U true JPS61158869U (en) | 1986-10-02 |
Family
ID=30489311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP926284U Pending JPS61158869U (en) | 1984-01-26 | 1984-01-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61158869U (en) |
-
1984
- 1984-01-26 JP JP926284U patent/JPS61158869U/ja active Pending
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