JPS5629719A - Constant voltage circuit - Google Patents
Constant voltage circuitInfo
- Publication number
- JPS5629719A JPS5629719A JP10424479A JP10424479A JPS5629719A JP S5629719 A JPS5629719 A JP S5629719A JP 10424479 A JP10424479 A JP 10424479A JP 10424479 A JP10424479 A JP 10424479A JP S5629719 A JPS5629719 A JP S5629719A
- Authority
- JP
- Japan
- Prior art keywords
- plus
- source
- electrode
- drain regions
- type
- 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 obtain the desired constant voltage without increasing the area of the element, by providing two units of the depletion-type FET having the source and drain regions plus the 1st and 2nd gates each.
CONSTITUTION: For the P channel depletion type insulated gate field effect transistor FET 2 and 3, the P type source and drain regions plus the P type channel region connecting to said source and drain regions are formed within the N type semiconductor substrate, the 1st gate electrode G1 is provided on the gate insulating film on the channel region, and the source and drain electrodes S and D plus the 2nd gate electrode G2 are extracted out of the source and drain regions plus the substrate respectively. Then electrodes G1, S and G2 of the FET2 plus electrode G2 of the FET3 are connected to the plus terminal (earthed) of the power source VD2 each, along with connection of electrode D of the FET2 plus electrodes S and G1 of the FET3 each. And electrode D of the FET3 is connected to the minus terminal of the VD2.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10424479A JPS5629719A (en) | 1979-08-15 | 1979-08-15 | Constant voltage circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10424479A JPS5629719A (en) | 1979-08-15 | 1979-08-15 | Constant voltage circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5629719A true JPS5629719A (en) | 1981-03-25 |
Family
ID=14375529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10424479A Pending JPS5629719A (en) | 1979-08-15 | 1979-08-15 | Constant voltage circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5629719A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53132750A (en) * | 1977-04-22 | 1978-11-18 | Matsushita Electric Ind Co Ltd | Constant voltage circuit |
-
1979
- 1979-08-15 JP JP10424479A patent/JPS5629719A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53132750A (en) * | 1977-04-22 | 1978-11-18 | Matsushita Electric Ind Co Ltd | Constant voltage circuit |
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