Patents Assigned to STMicoelectronics Asia Pafific Pte. Ltd.
  • Ramp generator circuit
    Patent number: 8963589
    Abstract: An oscillator circuit selectively charges and discharges a capacitor with currents having variable magnitudes. A trimming circuit functions to measure a half period of the oscillator signal. The measured half period is compared to a reference period to generate an error signal. The variable magnitudes of one or the other or both of the current for sourcing or sinking at the capacitor are adjusted in response to the error signal.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: February 24, 2015
    Assignees: STMicroelectronics S,r.l., STMicoelectronics Asia Pafific Pte. Ltd.
    Inventors: Lorenzo Ferrario, Roberto Trabattoni