JPS63167274U - - Google Patents
Info
- Publication number
- JPS63167274U JPS63167274U JP5994687U JP5994687U JPS63167274U JP S63167274 U JPS63167274 U JP S63167274U JP 5994687 U JP5994687 U JP 5994687U JP 5994687 U JP5994687 U JP 5994687U JP S63167274 U JPS63167274 U JP S63167274U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- resistor
- power source
- connection point
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000013101 initial test Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Tests Of Electronic Circuits (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
動作波形図、第３図は従来の回路図、第４図は従
来の出力波形図である。
Ｒ１，Ｒ２，Ｒ３，Ｒ４……抵抗、Ｃ……コン
デンサ、ＣＯＭＰ……比較器、Ｄ１……ダイオー
ド、Ｇ１……ゲート、ＴＳＧ……テストパルス発
生器。
FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is an operating waveform diagram, FIG. 3 is a conventional circuit diagram, and FIG. 4 is a conventional output waveform diagram. R1, R2, R3, R4...Resistor, C...Capacitor, COMP...Comparator, D1...Diode, G1...Gate, TSG...Test pulse generator.
Claims (1)
の直列回路と、 前記電源に接続する第３の抵抗とコンデンサと
の直列回路と、 前記第１及び第２の抵抗の接続点の電圧ＶＡと
第３の抵抗とコンデンサとの接続点の電圧ＶＢと
を比較し電圧ＶＢが電圧ＶＡよりも低い間だけ初
期テスト開始を許容する信号を出力する比較器と
を 有することを特徴とする初期テスト開始識別回
路。[Claims for Utility Model Registration] A series circuit of first and second resistors connected to a power source of an electronic device; a series circuit of a third resistor and a capacitor connected to the power source; and the first and second resistors connected to the power source. and a comparator that compares the voltage VA at the connection point of the third resistor and the voltage VB at the connection point between the third resistor and the capacitor and outputs a signal that allows the initial test to start only while the voltage VB is lower than the voltage VA. An initial test start identification circuit comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5994687U JPH076541Y2 (en) | 1987-04-22 | 1987-04-22 | Initial test start identification circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5994687U JPH076541Y2 (en) | 1987-04-22 | 1987-04-22 | Initial test start identification circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63167274U true JPS63167274U (en) | 1988-10-31 |
| JPH076541Y2 JPH076541Y2 (en) | 1995-02-15 |
Family
ID=30891923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5994687U Expired - Lifetime JPH076541Y2 (en) | 1987-04-22 | 1987-04-22 | Initial test start identification circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076541Y2 (en) |
-
1987
- 1987-04-22 JP JP5994687U patent/JPH076541Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH076541Y2 (en) | 1995-02-15 |