JPS5487115A - Automatic clear circuit - Google Patents
Automatic clear circuitInfo
- Publication number
- JPS5487115A JPS5487115A JP15448677A JP15448677A JPS5487115A JP S5487115 A JPS5487115 A JP S5487115A JP 15448677 A JP15448677 A JP 15448677A JP 15448677 A JP15448677 A JP 15448677A JP S5487115 A JPS5487115 A JP S5487115A
- Authority
- JP
- Japan
- Prior art keywords
- misfetq1
- automatic clear
- enhancement type
- depletion type
- malfunction
- 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)
Abstract
PURPOSE: To prevent the malfunction of automatic clear operation by providing the pull up depletion type MIS FET high resistor located between the gates and the power supply terminals of the enhancement type MISFETQ2 and MISFETQ1.
CONSTITUTION: The voltage division circuit by depletion type MISFET or diffusion resistor and the source follower circuit taking the enhancement type MISFETQ1 as drive means are provided. Further, the enhancement type MISFETQ2 connected to the diode in forward connection between the voltage dividing output and the gate of MISFETQ1 and the high resistor for pull up depletion type MISFETQ located between the gate of MISFETQ1 and the power supply Vdd terminal, are located. Thus, the source follower output Vo is used as the reference signal to form automatic clear signal, allowing to prevent the malfunction of automatic clear operation.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52154486A JPS6019011B2 (en) | 1977-12-23 | 1977-12-23 | auto clear circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52154486A JPS6019011B2 (en) | 1977-12-23 | 1977-12-23 | auto clear circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5487115A true JPS5487115A (en) | 1979-07-11 |
JPS6019011B2 JPS6019011B2 (en) | 1985-05-14 |
Family
ID=15585288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52154486A Expired JPS6019011B2 (en) | 1977-12-23 | 1977-12-23 | auto clear circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6019011B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60180216A (en) * | 1984-02-28 | 1985-09-14 | Fujitsu Ltd | Voltage detecting circuit |
-
1977
- 1977-12-23 JP JP52154486A patent/JPS6019011B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60180216A (en) * | 1984-02-28 | 1985-09-14 | Fujitsu Ltd | Voltage detecting circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS6019011B2 (en) | 1985-05-14 |
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