JPS5516558A - Voltage selective switching circuit - Google Patents

Voltage selective switching circuit

Info

Publication number
JPS5516558A
JPS5516558A JP8925478A JP8925478A JPS5516558A JP S5516558 A JPS5516558 A JP S5516558A JP 8925478 A JP8925478 A JP 8925478A JP 8925478 A JP8925478 A JP 8925478A JP S5516558 A JPS5516558 A JP S5516558A
Authority
JP
Japan
Prior art keywords
voltage
collector
current
fets
fet
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
JP8925478A
Other languages
Japanese (ja)
Inventor
Shunji Miura
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP8925478A priority Critical patent/JPS5516558A/en
Publication of JPS5516558A publication Critical patent/JPS5516558A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors

Landscapes

  • Bipolar Integrated Circuits (AREA)
  • Electronic Switches (AREA)
  • Bipolar Transistors (AREA)

Abstract

PURPOSE:To increase a peak current while decreasing a pinch-off voltage, by connecting the lst FET to the collector of a bipolar transistor and the 2nd FET to the base. CONSTITUTION:While a voltage between collector Tc and emitter TE of bipolar transistor 1 is low, FETs 2 and 3 are in an open state, a collector current flows, and the transistor is ON. Although a rise in voltage increase the collector current, gate-source voltages of both FETs rise to increase internal resistances of both the FETs and when the voltage reach a certain limit value, the collector current decreases. When the boltages increases more, the voltage reach the pinch-off voltage of either FET and transisitor 1 turns OFF. Since currents flowing through resistances R1 and R2 are limited by FET2 at this time, the peak current can be increased with no need for increasing resistance R1 and the pinch-off current can be lowered.
JP8925478A 1978-07-21 1978-07-21 Voltage selective switching circuit Pending JPS5516558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8925478A JPS5516558A (en) 1978-07-21 1978-07-21 Voltage selective switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8925478A JPS5516558A (en) 1978-07-21 1978-07-21 Voltage selective switching circuit

Publications (1)

Publication Number Publication Date
JPS5516558A true JPS5516558A (en) 1980-02-05

Family

ID=13965617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8925478A Pending JPS5516558A (en) 1978-07-21 1978-07-21 Voltage selective switching circuit

Country Status (1)

Country Link
JP (1) JPS5516558A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59227184A (en) * 1983-06-07 1984-12-20 日本文化精工株式会社 Method of filling paste in recess formed on printed board orlike
JPS617690A (en) * 1984-06-22 1986-01-14 日立コンデンサ株式会社 Method of producing printed circuit board

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59227184A (en) * 1983-06-07 1984-12-20 日本文化精工株式会社 Method of filling paste in recess formed on printed board orlike
JPS617690A (en) * 1984-06-22 1986-01-14 日立コンデンサ株式会社 Method of producing printed circuit board

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