JPS6474822A - Driving circuit to switch fet - Google Patents

Driving circuit to switch fet

Info

Publication number
JPS6474822A
JPS6474822A JP62233499A JP23349987A JPS6474822A JP S6474822 A JPS6474822 A JP S6474822A JP 62233499 A JP62233499 A JP 62233499A JP 23349987 A JP23349987 A JP 23349987A JP S6474822 A JPS6474822 A JP S6474822A
Authority
JP
Japan
Prior art keywords
fet3
potential
electrode
voltage
power source
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
Application number
JP62233499A
Other languages
Japanese (ja)
Inventor
Hitoshi Kasai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62233499A priority Critical patent/JPS6474822A/en
Publication of JPS6474822A publication Critical patent/JPS6474822A/en
Pending legal-status Critical Current

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  • Electronic Switches (AREA)

Abstract

PURPOSE:To realize miniaturization and light weight and to surely perform an operation, by using the voltage of a charging/discharging capacitor as an operating power source to perform the switching operation of a FET. CONSTITUTION:When a control transistor(TR)5 and a driving TR4 are controlled so as to turn OFF the FET3, the potential of the output electrode S of the FET3 is set at the ground potential to prevent the conduction of a load from being generated. Therefore, charging is performed by the DC power source 8 of a capacitor 11 via a back flow preventing diode 12, and a voltage, for example, of +B is applied. When the FET3 is turned ON by operating the control TR5 by impressing a control signal, the potential of the output electrode S of the FET3 goes to the potential +B of the DC power source 8. Also, the TR4 is turned ON, and the voltage of the capacitor 11 is impressed on the gate electrode G of the FET3. Therefore, the potential difference of the electrode G becomes higher than the electrode S by almost +B, which turns ON the FET3.
JP62233499A 1987-09-17 1987-09-17 Driving circuit to switch fet Pending JPS6474822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62233499A JPS6474822A (en) 1987-09-17 1987-09-17 Driving circuit to switch fet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62233499A JPS6474822A (en) 1987-09-17 1987-09-17 Driving circuit to switch fet

Publications (1)

Publication Number Publication Date
JPS6474822A true JPS6474822A (en) 1989-03-20

Family

ID=16955980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62233499A Pending JPS6474822A (en) 1987-09-17 1987-09-17 Driving circuit to switch fet

Country Status (1)

Country Link
JP (1) JPS6474822A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03129920A (en) * 1989-10-14 1991-06-03 Fuji Electric Co Ltd Light driven semiconductor device
JPH03206710A (en) * 1990-01-08 1991-09-10 Fuji Electric Co Ltd Optically driven semiconductor device
JPH0397233U (en) * 1990-01-25 1991-10-07

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717228A (en) * 1980-05-14 1982-01-28 Siemens Ag Switch with mis-fet
JPS604037B2 (en) * 1978-02-10 1985-02-01 九州大学長 floating marine station

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS604037B2 (en) * 1978-02-10 1985-02-01 九州大学長 floating marine station
JPS5717228A (en) * 1980-05-14 1982-01-28 Siemens Ag Switch with mis-fet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03129920A (en) * 1989-10-14 1991-06-03 Fuji Electric Co Ltd Light driven semiconductor device
JPH03206710A (en) * 1990-01-08 1991-09-10 Fuji Electric Co Ltd Optically driven semiconductor device
JPH0397233U (en) * 1990-01-25 1991-10-07

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