JPS559231A - Generation circuit of reference voltage - Google Patents
Generation circuit of reference voltageInfo
- Publication number
- JPS559231A JPS559231A JP8037578A JP8037578A JPS559231A JP S559231 A JPS559231 A JP S559231A JP 8037578 A JP8037578 A JP 8037578A JP 8037578 A JP8037578 A JP 8037578A JP S559231 A JPS559231 A JP S559231A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- vdd
- voltage
- variable
- reference voltage
- 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)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE: To obtain the variable reference voltage excellent in the temperature characteristics and less in power consumption, by using the field effect transistor.
CONSTITUTION: The source voltage VX of the circuit shown has excellent constant voltage characteristics, in which between the source and gate of the N channel field effect transistor FET the resistor RS is connected, the resistor RL is connected between the gate and the minus of the DC power supply VDD, and the positive of VDD is connected to the drain. That is, the drain current ID of FET is always constant if VDD is more than a given value. A given voltage VX is obtained between the resistors RS and RL, and when the resistor RS is of variable type, VX can easily be variable. This circuit can be used the same as the reference power supply consisting of a series circuit of a resistor and a Zener diode conventionally.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8037578A JPS559231A (en) | 1978-06-30 | 1978-06-30 | Generation circuit of reference voltage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8037578A JPS559231A (en) | 1978-06-30 | 1978-06-30 | Generation circuit of reference voltage |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS559231A true JPS559231A (en) | 1980-01-23 |
Family
ID=13716523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8037578A Pending JPS559231A (en) | 1978-06-30 | 1978-06-30 | Generation circuit of reference voltage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS559231A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6313193U (en) * | 1986-07-11 | 1988-01-28 |
-
1978
- 1978-06-30 JP JP8037578A patent/JPS559231A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6313193U (en) * | 1986-07-11 | 1988-01-28 | ||
JPH0527984Y2 (en) * | 1986-07-11 | 1993-07-16 |
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