JPS5547518A - Constant current circuit - Google Patents
Constant current circuitInfo
- Publication number
- JPS5547518A JPS5547518A JP12057878A JP12057878A JPS5547518A JP S5547518 A JPS5547518 A JP S5547518A JP 12057878 A JP12057878 A JP 12057878A JP 12057878 A JP12057878 A JP 12057878A JP S5547518 A JPS5547518 A JP S5547518A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- voltage
- constant current
- pulsating
- turned
- 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
Abstract
PURPOSE: To make substantially constant the output current irrespective of the pulsating of the input voltage by controlling the series transistor by the transistor which is turned ON through more than a predetermined value of the pulsating voltage.
CONSTITUTION: When the pulsating voltage is impressed between the input terminals 1 and 2, this voltage is elevated to more than a predetermined value and the transistor 3 is turned ON, transistor 8 constantly kept conductive in made rather OFF. Therefore, the transistor 10 is apt to be turned OFF, causing the charging current of the battery 11 to be substantially constant. Thus, in order to obtain the constant current from the pulsating voltage, even if the pulsating voltage is changed, it may be made a constant current.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12057878A JPS5547518A (en) | 1978-09-30 | 1978-09-30 | Constant current circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12057878A JPS5547518A (en) | 1978-09-30 | 1978-09-30 | Constant current circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5547518A true JPS5547518A (en) | 1980-04-04 |
Family
ID=14789743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12057878A Pending JPS5547518A (en) | 1978-09-30 | 1978-09-30 | Constant current circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5547518A (en) |
-
1978
- 1978-09-30 JP JP12057878A patent/JPS5547518A/en active Pending
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