JPH0159871U - - Google Patents
Info
- Publication number
- JPH0159871U JPH0159871U JP15529787U JP15529787U JPH0159871U JP H0159871 U JPH0159871 U JP H0159871U JP 15529787 U JP15529787 U JP 15529787U JP 15529787 U JP15529787 U JP 15529787U JP H0159871 U JPH0159871 U JP H0159871U
- Authority
- JP
- Japan
- Prior art keywords
- comparator
- voltage
- input
- output
- threshold values
- 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 6
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
第１図は本考案の装置の実施例を示す回路図、
第２図ａは第１図の回路における入力電圧に対す
る各部電圧波形を示す図、第２図ｂは第１図の回
路における入力電圧に対する各コンパレータ出力
の論理値を示す図、第３図は従来の装置を示す回
路図、第４図ａは第３図における入力電圧に対す
る各部電圧波形を示す図、第４図ｂは第３図にお
ける入力電圧に対する各コンパレータ出力の論理
値を示す図である。
ＣＰ１……第１のコンパレータ、ＣＰ２……第
２のコンパレータ、Ｖｒｅｆ……基準電圧源、Ｑ
１……ＮＰＮトランジスタ、Ｒ１〜Ｒ９……抵抗
。
FIG. 1 is a circuit diagram showing an embodiment of the device of the present invention;
Figure 2a is a diagram showing the voltage waveforms of various parts relative to the input voltage in the circuit of Figure 1, Figure 2b is a diagram showing the logical values of each comparator output with respect to the input voltage in the circuit of Figure 1, and Figure 3 is a diagram of the conventional FIG. 4a is a diagram showing the voltage waveforms of various parts with respect to the input voltage in FIG. 3, and FIG. 4b is a diagram showing the logical values of each comparator output with respect to the input voltage in FIG. 3. CP1 ...first comparator, CP2 ...second comparator, Vref...reference voltage source, Q
1 ...NPN transistor, R1 to R9 ...resistance.
Claims (1)
各コンパレータの一方の入力に各々直流電圧を印
加し、他方の入力に各々異なる基準電圧を印加し
て前記直流電圧を異なる閾値で弁別する電圧弁別
装置において、第１のコンパレータ出力により第
２のコンパレータの基準電圧を切換える手段を備
え、前記手段により第２のコンパレータが２つの
閾値を有するように構成したことを特徴とする電
圧弁別装置。 comprising at least first and second comparators;
In a voltage discrimination device that applies a DC voltage to one input of each comparator and applies different reference voltages to the other input to discriminate the DC voltages using different threshold values, the output of the first comparator causes the output of the second comparator to 1. A voltage discriminator comprising: means for switching a reference voltage; said means causes a second comparator to have two threshold values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15529787U JPH0159871U (en) | 1987-10-09 | 1987-10-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15529787U JPH0159871U (en) | 1987-10-09 | 1987-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0159871U true JPH0159871U (en) | 1989-04-14 |
Family
ID=31432801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15529787U Pending JPH0159871U (en) | 1987-10-09 | 1987-10-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0159871U (en) |
-
1987
- 1987-10-09 JP JP15529787U patent/JPH0159871U/ja active Pending
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