Patent ID: 9680414
Date: 2017-06-13
CPC Classifications: B81B,H03B,H03G,H03K,H03L

Claim:
1. A system comprising: an amplifier operably connected to a phase shifter and an oscillator, wherein the amplifier is configured to amplify a voltage or convert a current from the oscillator and sustain an oscillator amplitude and an oscillator frequency; the oscillator operably connected to the amplifier, wherein the phase shifted voltage drives the oscillator, wherein the oscillator is at an internal resonance condition based at least on the amplitude or phase of the phase shifted voltage, and wherein the internal resonance condition stabilizes frequency oscillations in the oscillator; a resonator placed into self-sustained motion and operably connected to a connection terminal wherein a first electrode in the resonator applies a periodic electrostatic force and a second electrode in the resonator is used to transduce the motion of the resonator through a motional current; the oscillator operably connected to the resonator, wherein the phase shifted voltage drives the oscillator, the oscillator is driven to non-linear behavior, wherein the oscillator comprises a first mode and a second mode, wherein energy is transferred from the first mode to the second mode in the resonance condition, and the transferred energy is stored in vibrational amplitude in the second mode, wherein the vibrational amplitude of the second mode results in the coupling between the first and the second mode and is proportional to the amplitude of the first mode, and the transferred energy stabilizes the frequency oscillations in the oscillator; and an external power source operably and removably connected to the oscillator, wherein the energy stored in the second mode is transferred to the first mode maintain the oscillator amplitude and the oscillator frequency when the external power source is removed.