Patent ID: 7038550
Filing Date: 2006-05-02
Classification: H03B

Abstract:
1. A circuit, realizing a new oscillator circuit with a Smart Current Controlled (SCC) Resonator Driver and accounting for differences in operation at positive and negative half-waves of oscillation cycles, comprising: an oscillation generating circuit in form of a basic three-point oscillator configuration, having three nodes ( a terminal pin for supply voltage connection; a terminal pin for ground connection, which is tied to said third node two capacitors and one resistor as passive components, whereby said passive components are embedding said resonator two-pole between said two capacitors, all components arranged in PI-configuration, bridging said resonator with said resistor and arranged in such a way, that capacitor one is tied with its first pole to said first node a Field Effect Transistor (FET) for inducing and sustaining resonator two-pole controlled oscillations as basic active component; a first current source as active supply component connected to said supply voltage and arranged in such a way, that said active supply component supplying a bias-current is located between said voltage supply terminal and said second node a second current source as active ground component connected to ground, whereby said FET as basic active component, supplied by said first current source as active supply component is controlled by said second current source as active ground component and whereby said three active components are arranged in such a way, that the gate of the FET is tied to said first node