JPS56111919A - Constant voltage circuit - Google Patents
Constant voltage circuitInfo
- Publication number
- JPS56111919A JPS56111919A JP1454080A JP1454080A JPS56111919A JP S56111919 A JPS56111919 A JP S56111919A JP 1454080 A JP1454080 A JP 1454080A JP 1454080 A JP1454080 A JP 1454080A JP S56111919 A JPS56111919 A JP S56111919A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- mosfet1
- supply voltage
- capacitors
- fluctuation
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/24—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only
- G05F3/242—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only with compensation for device parameters, e.g. channel width modulation, threshold voltage, processing, or external variations, e.g. temperature, loading, supply voltage
- G05F3/247—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only with compensation for device parameters, e.g. channel width modulation, threshold voltage, processing, or external variations, e.g. temperature, loading, supply voltage producing a voltage or current as a predetermined function of the supply voltage
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
Abstract
PURPOSE:To realize a steady operation with a low level of power comsumption and regardless of a fluctuation of the power supply voltage, by controlling the threshold voltage levels of two MOSFETs that form an input gate of the voltage comparator circuit at difference values. CONSTITUTION:The voltage comparator circuit 30 includes the MOSFET1 and 2 used as the voltage input gates plus the current Miller circuit 31 consisting of MOSFET3 and 4 that are used as the active loads circuits. The gates of the MOSFET1 and 2 are connected to the connection point A between the capacitors 7 and 8 connected in parallel to the load 6 as wll as to the connection point B of the MOS5 for voltage drop. In this case, the supply voltage VSL of the load 6 becomes as shown by an equation (where C7 and C8 show the electrostatic capacities of capacitors 7 and 8, and VTP1 and VTP2 show the threshold voltage levels of the MOSFET1 and 2). In such way, a steady operation is secured regardless of a fluctuation of the power supply voltage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1454080A JPS56111919A (en) | 1980-02-08 | 1980-02-08 | Constant voltage circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1454080A JPS56111919A (en) | 1980-02-08 | 1980-02-08 | Constant voltage circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56111919A true JPS56111919A (en) | 1981-09-04 |
Family
ID=11863978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1454080A Pending JPS56111919A (en) | 1980-02-08 | 1980-02-08 | Constant voltage circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56111919A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0522622U (en) * | 1991-08-20 | 1993-03-23 | 株式会社旭ダンケ | Civil engineering concrete block |
CN110442180A (en) * | 2018-05-02 | 2019-11-12 | 亚德诺半导体无限责任公司 | Power-cyclical voltage reference |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54132753A (en) * | 1978-04-05 | 1979-10-16 | Hitachi Ltd | Referential voltage generator and its application |
-
1980
- 1980-02-08 JP JP1454080A patent/JPS56111919A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54132753A (en) * | 1978-04-05 | 1979-10-16 | Hitachi Ltd | Referential voltage generator and its application |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0522622U (en) * | 1991-08-20 | 1993-03-23 | 株式会社旭ダンケ | Civil engineering concrete block |
CN110442180A (en) * | 2018-05-02 | 2019-11-12 | 亚德诺半导体无限责任公司 | Power-cyclical voltage reference |
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