JPS5544658A - Direct current constant voltage source circuit - Google Patents
Direct current constant voltage source circuitInfo
- Publication number
- JPS5544658A JPS5544658A JP11827978A JP11827978A JPS5544658A JP S5544658 A JPS5544658 A JP S5544658A JP 11827978 A JP11827978 A JP 11827978A JP 11827978 A JP11827978 A JP 11827978A JP S5544658 A JPS5544658 A JP S5544658A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- resistance
- decreases
- increases
- channel
- 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
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE: To obtain a constant amount of the output at all times without receiving any effect of the fluctuation of the load or the power voltage by installing the emitter follower circuit, the constant current circuit part and the negative feedback circuit each between the transistor, the diode and the output terminal respectively.
CONSTITUTION: In case the voltage of output terminal 6 increases by some reason, the overlap voltage of resistance 7 increases and then inverted via the inverter consisting of transistor Tr11 and resistance R10 to be turned into the gate input voltage of Tr13. As a result, the channel resistance of Tr13 increases, and the current flowing to resistance 12 and Tr13 decreases. This decreases both the voltage across resistance 12 and the voltage to be applied between the gate and the source of Tr14. Accordingly, the current flowing into P-channel Tr8, N-channel Tr9 and diode 2 from Tr14 decreases to decrease the potential at point C as well as the emitter current of Tr14. Thus the increment of the voltage can be reduced down for terminal 6. While in case the output voltage lowers down, the lowering can be prevented by giving the opposite operation to that mentioned above.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11827978A JPS5544658A (en) | 1978-09-26 | 1978-09-26 | Direct current constant voltage source circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11827978A JPS5544658A (en) | 1978-09-26 | 1978-09-26 | Direct current constant voltage source circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5544658A true JPS5544658A (en) | 1980-03-29 |
Family
ID=14732717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11827978A Pending JPS5544658A (en) | 1978-09-26 | 1978-09-26 | Direct current constant voltage source circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5544658A (en) |
-
1978
- 1978-09-26 JP JP11827978A patent/JPS5544658A/en active Pending
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