JPS5554467A - Voltage detection circuit - Google Patents
Voltage detection circuitInfo
- Publication number
- JPS5554467A JPS5554467A JP8037378A JP8037378A JPS5554467A JP S5554467 A JPS5554467 A JP S5554467A JP 8037378 A JP8037378 A JP 8037378A JP 8037378 A JP8037378 A JP 8037378A JP S5554467 A JPS5554467 A JP S5554467A
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- fet
- voltage
- source
- power supply
- 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
- Measurement Of Current Or Voltage (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE: To prevent an influence of a temperature and also to reduce power consumption by simplifying circuit constitution by applying PUT with a variable voltage developed through P-type FET as a reference voltage.
CONSTITUTION: Of reference voltage generating circuit 5, N-type field effect transistor FET is connected to current power supply 1 and further to current limiting variable resistance RS and high resistance RL in series, and its gate is connected to its source through resistance RS while the source is connected to the negative side of power supply 1 through resistance RL; since there is no need to provide a Zener diode, a broad-range variable reference voltage is developed at the source of FET through resistance RS without reference to a temperature by high impedance of FET with small power consumption. Therefore, the source voltage of FET to PUT which does not get latched when current control high resistance Ra is series-connected to the negative side of power supply 1 to detect a voltage, equivalent to a broad-range detection voltage through PUT by the simple constitution under no influence of the temperature with small power consumption.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8037378A JPS5554467A (en) | 1978-06-30 | 1978-06-30 | Voltage detection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8037378A JPS5554467A (en) | 1978-06-30 | 1978-06-30 | Voltage detection circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5554467A true JPS5554467A (en) | 1980-04-21 |
Family
ID=13716468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8037378A Pending JPS5554467A (en) | 1978-06-30 | 1978-06-30 | Voltage detection circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5554467A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0346241U (en) * | 1989-04-25 | 1991-04-30 | ||
JP2008026123A (en) * | 2006-07-20 | 2008-02-07 | Matsushita Electric Ind Co Ltd | Semiconductor device |
-
1978
- 1978-06-30 JP JP8037378A patent/JPS5554467A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0346241U (en) * | 1989-04-25 | 1991-04-30 | ||
JP2008026123A (en) * | 2006-07-20 | 2008-02-07 | Matsushita Electric Ind Co Ltd | Semiconductor device |
JP4671927B2 (en) * | 2006-07-20 | 2011-04-20 | パナソニック株式会社 | Semiconductor device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS55128870A (en) | Electrostatic induction thyristor and semiconductor device | |
JPS5421102A (en) | Semiconductor device circuit | |
JPS5320844A (en) | Gain control circuit | |
JPS57109189A (en) | Output buffer circuit | |
JPS551756A (en) | Drive circuit for field effect transistor | |
JPS5554467A (en) | Voltage detection circuit | |
JPS53105357A (en) | Complementary circuit for field effct transistor | |
JPS5246429A (en) | Direct current high voltage power source | |
JPS536732A (en) | Non-contacting ignition device | |
JPS5276661A (en) | Power source device | |
JPS5247694A (en) | Solar cell power supply device | |
JPS5515511A (en) | Constant current circuit | |
JPS5593320A (en) | Switching unit | |
JPS53132752A (en) | Constant current circuit | |
JPS5321437A (en) | Induction heating device | |
JPS52107554A (en) | Constant current source circuit | |
JPS5234342A (en) | Reference voltage source | |
JPS54144892A (en) | Drive circuit for light emitting semiconductor element | |
JPS5238145A (en) | Continous variable type direct current constant voltage power supply | |
JPS5240173A (en) | Voltage detection circuit | |
JPS554132A (en) | Schmitt circuit | |
JPS52118517A (en) | Dc-dc converter | |
JPS5336489A (en) | Semiconductor memory element | |
JPS5574612A (en) | Drive circuit for inductive load | |
JPS52137246A (en) | Transistor transistor logic circuit |