JPS6432525A - Semiconductor logic circuit - Google Patents
Semiconductor logic circuitInfo
- Publication number
- JPS6432525A JPS6432525A JP62189322A JP18932287A JPS6432525A JP S6432525 A JPS6432525 A JP S6432525A JP 62189322 A JP62189322 A JP 62189322A JP 18932287 A JP18932287 A JP 18932287A JP S6432525 A JPS6432525 A JP S6432525A
- Authority
- JP
- Japan
- Prior art keywords
- turned
- falling
- output signal
- state
- bipolar
- 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
Landscapes
- Electronic Switches (AREA)
- Logic Circuits (AREA)
Abstract
PURPOSE:To quicken the falling of an output signal by detecting a transient current caused due to parasitic capacitance of a bipolar transistor(TR) caused at the time of rising and providing a TR falling its output signal in response thereto. CONSTITUTION:A transient current Ipass flowing through a parasitic capacitor CCB at the time of rising and only at transient state is detected by a forward internal resistor of a diode 18 and fed to a TR 19. Thus, the TR 19 is turned on, a current Idis flows to the ground and the potential at an output terminal OUT goes immediately to a low level together with a TR 17 turned on simultaneously. Then an output signal is kept low by the ON-state of a 2nd bipolar TR 17 and the ON-state of the MOS TR 15 with a 2nd MOS gate circuit 21 turned on thereby increasing the falling responsiveness considerably. Thus, the transient current flowing uselessly for the charging/discharging of the CCB of a 1st bipolar TR 16 is utilized effectively to improve the performance of the logic circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62189322A JPS6432525A (en) | 1987-07-28 | 1987-07-28 | Semiconductor logic circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62189322A JPS6432525A (en) | 1987-07-28 | 1987-07-28 | Semiconductor logic circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432525A true JPS6432525A (en) | 1989-02-02 |
Family
ID=16239419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62189322A Pending JPS6432525A (en) | 1987-07-28 | 1987-07-28 | Semiconductor logic circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432525A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003066313A (en) * | 2001-08-29 | 2003-03-05 | Nikon Corp | Optical device |
DE102010052717B4 (en) | 2009-11-26 | 2021-11-11 | Fanuc Corporation | Method for controlling a spot welding system |
-
1987
- 1987-07-28 JP JP62189322A patent/JPS6432525A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003066313A (en) * | 2001-08-29 | 2003-03-05 | Nikon Corp | Optical device |
DE102010052717B4 (en) | 2009-11-26 | 2021-11-11 | Fanuc Corporation | Method for controlling a spot welding system |
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