JPS61110175U - - Google Patents
Info
- Publication number
- JPS61110175U JPS61110175U JP19571584U JP19571584U JPS61110175U JP S61110175 U JPS61110175 U JP S61110175U JP 19571584 U JP19571584 U JP 19571584U JP 19571584 U JP19571584 U JP 19571584U JP S61110175 U JPS61110175 U JP S61110175U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- resistor
- power supply
- supply terminal
- divider circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案に係る電圧検出回路の一実施例
を示す回路図、第２図は第１図の回路の動作説明
のために各部の電圧波形を示す図、第３図は従来
の電圧検出回路を示す回路図である。
１……電源端子、２……抵抗分圧回路、５……
ＰＵＴ、Ｒ３……抵抗、Ｄｚ……ツエナーダイオ
ード。
Fig. 1 is a circuit diagram showing one embodiment of the voltage detection circuit according to the present invention, Fig. 2 is a diagram showing voltage waveforms of various parts to explain the operation of the circuit of Fig. 1, and Fig. 3 is a diagram showing a conventional voltage detection circuit. FIG. 3 is a circuit diagram showing a detection circuit. 1...Power supply terminal, 2...Resistance voltage divider circuit, 5...
PUT, R3 ...resistance, Dz...Zener diode.
Claims (1)
地端子との間に接続された抵抗分圧回路と、同じ
く上記電源端子と接地端子との間に直列に接続さ
れた抵抗および定電圧ダイオードと、この抵抗お
よび定電圧ダイオードの相互接続点にアノードが
接続され、カソードが接地され、ゲートが前記抵
抗分圧回路の所定の分圧点に接続され、前記電源
端子の印加電圧がある値以下になつたときにオン
動作するプログラマブル・ユニジヤンクシヨント
ランジスタとを具備することを特徴とする電圧検
出回路。 a resistor voltage divider circuit connected between a power supply terminal to which a DC voltage to be detected is applied and a ground terminal; a resistor and a constant voltage diode similarly connected in series between the power supply terminal and the ground terminal; An anode is connected to the interconnection point of the resistor and the voltage regulator diode, a cathode is grounded, and a gate is connected to a predetermined voltage dividing point of the resistor voltage divider circuit, so that the voltage applied to the power supply terminal becomes less than or equal to a certain value. 1. A voltage detection circuit comprising: a programmable union transistor that is turned on when the voltage is on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19571584U JPS61110175U (en) | 1984-12-24 | 1984-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19571584U JPS61110175U (en) | 1984-12-24 | 1984-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61110175U true JPS61110175U (en) | 1986-07-12 |
Family
ID=30753319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19571584U Pending JPS61110175U (en) | 1984-12-24 | 1984-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61110175U (en) |
-
1984
- 1984-12-24 JP JP19571584U patent/JPS61110175U/ja active Pending
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