Oscillator having controllable frequency compensation for suppressing undesired frequency of oscillation

An oscillator circuit comprising:

• a resonant network for generating a resonant signal;
• an amplifier section coupled to said resonant network for amplifying said resonant signal, said amplifier section having an intermediate section;
• a compensation network coupled across said intermediate section for suppressing oscillations at a frequency greater than the frequency of said resonant signal;
• and
• a switch coupled to said amplifier section and to said compensation network for selectively providing compensation to said amplifier section.

A method for controlling an oscillator circuit, wherein said oscillator circuit includes a resonant network for generating a resonant signal, an amplifier section for amplifying said resonant signal, and a compensation network, said amplifier section having an intermediate section, the method comprising the steps of:

• providing power to said oscillator circuit;
• electrically coupling said compensation network across said intermediate section of said amplifier section to suppress oscillations at frequencies greater than the frequency of said resonant signal;
• waiting for a time duration while amplifying said resonant signal;
• and
• electrically disconnecting said compensation network from said amplifier section after waiting for said time duration to lapse.

A method of operating an oscillator circuit, said oscillator circuit including a resonant network for generating a resonant signal and an amplifier section for amplifying said resonant signal, said resonant network and said amplifier section defining a transfer function, said method comprising the steps of:

• providing power to said oscillator circuit to generate said resonant signal;
• providing compensation to said amplifier section such that a zero is added to said transfer function to suppress oscillation at a frequency greater than said resonant signal;
• and
• removing said compensation from said amplifier section after said resonant signal is amplified by said amplifier section.

A compensated amplifier circuit for use with an oscillator circuit including a resonant network, said compensated amplifier circuit comprising:

• an amplifier section coupled to said resonant network for amplifying a resonant signal generated by said resonant network, said amplifier section having an intermediate section;
• a compensation network coupled across said intermediate section for suppressing oscillations at a frequency greater than the frequency of said resonant signal;
• and
• a switch coupled to said amplifier section and to said compensation network for selectively providing compensation to said amplifier section.