JPS5582320A - Constant voltage circuit - Google Patents
Constant voltage circuitInfo
- Publication number
- JPS5582320A JPS5582320A JP15660978A JP15660978A JPS5582320A JP S5582320 A JPS5582320 A JP S5582320A JP 15660978 A JP15660978 A JP 15660978A JP 15660978 A JP15660978 A JP 15660978A JP S5582320 A JPS5582320 A JP S5582320A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- resistance
- fluctuation
- collector
- current
- 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
- Control Of Electrical Variables (AREA)
Abstract
PURPOSE: To reduce the power source voltage dependency of an output voltage by connecting a diode connection Tr to the emitter of transistor Tr and connecting resistances to the collector and the base and supplying a current from a current Miller circuit to resistances.
CONSTITUTION: Diode connection Tr6 is connected to the emitter of Tr13, and the collector and the base are connected to both ends of resistance 12. The collector of Tr13 is connected to the base of Tr4 of the same polarity, and the collector current determined by the resistance connected to the emitter of Tr4 is supplied to resistance 12 from a current Miller circuit constituted by Tr2 and 3 having the polarity opposite to Tr13. Collector current IC2 of Tr2 is fluctuated due to fluctuation of power source voltage 1, and the voltage between the base and the emitter of Tr13 and 16 generated by this fluctuation can be cancelled by voltage drop of resistance 12. Consequently, when the value of resistance 12 is so selected that change of the voltage at output termlnal 10 may be minimum on a basis of the fluctuation width of the current flowed to Tr13 and 6, fluctuation of the output voltage for fluctuation of the power source voltage can be suppressed, and a stable constant-voltage circuit can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15660978A JPS5582320A (en) | 1978-12-18 | 1978-12-18 | Constant voltage circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15660978A JPS5582320A (en) | 1978-12-18 | 1978-12-18 | Constant voltage circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5582320A true JPS5582320A (en) | 1980-06-21 |
Family
ID=15631470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15660978A Pending JPS5582320A (en) | 1978-12-18 | 1978-12-18 | Constant voltage circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5582320A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4854460A (en) * | 1971-11-11 | 1973-07-31 | ||
JPS50343A (en) * | 1973-05-07 | 1975-01-06 |
-
1978
- 1978-12-18 JP JP15660978A patent/JPS5582320A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4854460A (en) * | 1971-11-11 | 1973-07-31 | ||
JPS50343A (en) * | 1973-05-07 | 1975-01-06 |
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