Patent ID: 6836190
Filing Date: 2004-12-28
Classification: H03B

Abstract:
An oscillator device comprising:an oscillation circuit including an NPN oscillation transistor and a buffer amplifier circuit including a PNP buffer amplifier transistor; wherein the NPN oscillation transistor and the PNP buffer amplifier transistor are connected in series to a power supply; a collector of the NPN oscillation transistor is connected to a power terminal and is grounded via a capacitor; a base of the PNP buffer amplifier transistor is grounded via a capacitor; at least one of a resistor and an inductor is connected between a collector of the PNP buffer amplifier transistor and the ground; the collector of the PNP buffer amplifier transistor is AC-connected to an output terminal; and an emitter of the NPN oscillation transistor and an emitter of the PNP buffer amplifier transistor are directly connected.