JPS6476107A - Power source input displaying circuit - Google Patents
Power source input displaying circuitInfo
- Publication number
- JPS6476107A JPS6476107A JP62233452A JP23345287A JPS6476107A JP S6476107 A JPS6476107 A JP S6476107A JP 62233452 A JP62233452 A JP 62233452A JP 23345287 A JP23345287 A JP 23345287A JP S6476107 A JPS6476107 A JP S6476107A
- Authority
- JP
- Japan
- Prior art keywords
- power source
- transistor
- light emitting
- emitting diode
- clock pulse
- 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
- Power Sources (AREA)
Abstract
PURPOSE:To reduce an energy consumption by flickering a light emitting diode in accordance with a clock pulse. CONSTITUTION:A power source input displaying circuit is composed of a transistor 1, resistances 2, 3, a light emitting diode 4, a clock pulse generating circuit 5 and a power source Vcc. The cathode of the light emitting diode 4 is connected to the collector of the transistor 1 through the resistance 3 and an output pulse 6 of the clock pulse generating circuit 5 is supplied through the resistance 2 to the base of the transistor 1. Thus, only when the output pulse 6 of the clock pulse generating circuit 5 is a high level, the transistor 1 is turned on and the light emitting diode 4 lights up.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62233452A JPS6476107A (en) | 1987-09-17 | 1987-09-17 | Power source input displaying circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62233452A JPS6476107A (en) | 1987-09-17 | 1987-09-17 | Power source input displaying circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6476107A true JPS6476107A (en) | 1989-03-22 |
Family
ID=16955261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62233452A Pending JPS6476107A (en) | 1987-09-17 | 1987-09-17 | Power source input displaying circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6476107A (en) |
-
1987
- 1987-09-17 JP JP62233452A patent/JPS6476107A/en active Pending
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