JPS6449415A - Delay circuit - Google Patents
Delay circuitInfo
- Publication number
- JPS6449415A JPS6449415A JP62207454A JP20745487A JPS6449415A JP S6449415 A JPS6449415 A JP S6449415A JP 62207454 A JP62207454 A JP 62207454A JP 20745487 A JP20745487 A JP 20745487A JP S6449415 A JPS6449415 A JP S6449415A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- delay time
- constant current
- voltage
- 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
Landscapes
- Pulse Circuits (AREA)
Abstract
PURPOSE:To easily set a delay time, by obtaining the delay time by charging a capacitor from a constant current circuit. CONSTITUTION:When an input pulse goes to a low level, the constant current circuit 2 is operated, and a voltage directly proportional to a time when the charge of the capacitor 3 is started can be obtained at a capacitor terminal. When the voltage impressed on the capacitor terminal exceeds a comparator voltage in a buffer circuit 4, the output of the buffer circuit 4 goes to the low level. Therefore, the delay time can be obtained in a waveform obtained at an output terminal 6 via an OR gate circuit 5. For example, assuming the capacitor 3 as 10PF, a constant current value as 100mu A, and the comparator voltage as 1.5V, the delay time of 15ns can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62207454A JPS6449415A (en) | 1987-08-20 | 1987-08-20 | Delay circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62207454A JPS6449415A (en) | 1987-08-20 | 1987-08-20 | Delay circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6449415A true JPS6449415A (en) | 1989-02-23 |
Family
ID=16540036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62207454A Pending JPS6449415A (en) | 1987-08-20 | 1987-08-20 | Delay circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6449415A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61177019A (en) * | 1985-01-31 | 1986-08-08 | Matsushita Electric Ind Co Ltd | Pulse stretch circuit |
-
1987
- 1987-08-20 JP JP62207454A patent/JPS6449415A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61177019A (en) * | 1985-01-31 | 1986-08-08 | Matsushita Electric Ind Co Ltd | Pulse stretch circuit |
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