TRANSISTOR AMPLIFIER CIRCUIT - FUJITSU FANUC LTD

Title:

TRANSISTOR AMPLIFIER CIRCUIT

Document Type and Number:

WIPO Patent Application WO/1982/001449

Kind Code:

A1

Abstract:

A transistor amplifier circuit provided with an oscillation preventing countermeasure. When a transistor (TR1) having a relatively high input capacitance is driven by another driving transistor (TR2), an oscillation preventing diode (D1 and/or 50) is connected to the connecting wire of both the transistors (TR1, TR2). Current communication necessary between the capacitance between the collector and the base of the transistor (TR1) and the inductance due to the length of the wire can be prevented by the rectifying action of the oscillation preventing diode (D1, 50), thereby preventing oscillation of the transistor amplifier circuit.

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Inventors:

KOBARI KATSUO (JP)
SAKAMOTO KEIJI (JP)
KOBAYASHI TOSHIO (JP)

Application Number:

PCT/JP1981/000276

Publication Date:

April 29, 1982

Filing Date:

October 09, 1981

Export Citation:

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Assignee:

FUJITSU FANUC LTD (JP)
KOBARI KATSUO (JP)
SAKAMOTO KEIJI (JP)
KOBAYASHI TOSHIO (JP)

International Classes:

H03F1/08; H03F1/14; (IPC1-7): H03F1/08; H03F3/343; H03K17/60

Foreign References:

JPS50124558A	1975-09-30
JPS466871A	1971-12-15
JPS5428350U	1979-02-24
JPS5061165A	1975-05-26

Other References: