JPS5557919A - Voltage-current control circuit - Google Patents
Voltage-current control circuitInfo
- Publication number
- JPS5557919A JPS5557919A JP13055178A JP13055178A JPS5557919A JP S5557919 A JPS5557919 A JP S5557919A JP 13055178 A JP13055178 A JP 13055178A JP 13055178 A JP13055178 A JP 13055178A JP S5557919 A JPS5557919 A JP S5557919A
- Authority
- JP
- Japan
- Prior art keywords
- fet
- wfet
- voltage
- current
- currents
- 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 make it possible to simplify a circuit, to reduce its prime cost, and also to improve reliability, by connecting an insulation gate field effect element in parallel to a control element.
CONSTITUTION: This circuit consists of stabilized power supply Vin, voltage-current control power MOSFETs FET1WFETn, control circuit 4, reference voltage 3, and stabilizing output voltage Vout. If currents ID flowing through FET1 to FETn become unbalanced, namely, when current ID1 through FET1 is greater than those of FET2WFETn, the calorific power of FET1 becomes higher than any other one, and consequently gate-drain voltage VGD of FET1 increases to reduce its drain current under the influence of negative feedback action, so that the current through FET1 will decrease. Since FET1WFET2 have the same effect, unbalance among currents, even if occurring, equalizes automatically currents through FET1WFETn eventually.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13055178A JPS5557919A (en) | 1978-10-25 | 1978-10-25 | Voltage-current control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13055178A JPS5557919A (en) | 1978-10-25 | 1978-10-25 | Voltage-current control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5557919A true JPS5557919A (en) | 1980-04-30 |
Family
ID=15036971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13055178A Pending JPS5557919A (en) | 1978-10-25 | 1978-10-25 | Voltage-current control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5557919A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60163113A (en) * | 1984-02-02 | 1985-08-26 | Seiko Instr & Electronics Ltd | Constant voltage circuit for mos integrated circuit |
JPS648416A (en) * | 1987-07-01 | 1989-01-12 | Diesel Kiki Co | Control device |
-
1978
- 1978-10-25 JP JP13055178A patent/JPS5557919A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60163113A (en) * | 1984-02-02 | 1985-08-26 | Seiko Instr & Electronics Ltd | Constant voltage circuit for mos integrated circuit |
JPS648416A (en) * | 1987-07-01 | 1989-01-12 | Diesel Kiki Co | Control device |
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