Crystal Oscillator Circuit and Method of Operation

Ronan A.R. van der Zee (Inventor), Joeri Boris Lechevallier (Inventor)

Research output: Patent

38 Downloads (Pure)


A crystal oscillator circuit (100, 200) is described that includes a crystal resonator (220); and a voltage source (204) configured to apply a voltage step across the crystal oscillator (220) where a polarity of the voltage source (204) applied to the crystal resonator (220) is switched in response to a sign of a current passing through the crystal resonator (220) and in response thereto a self-timed energy injection waveform is provided to the crystal resonator (220).
Original languageEnglish
Patent numberEP 3 687 063 A1
Filing date24/01/19
Publication statusPublished - 29 Jul 2020


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