US 12,143,110 B2
Control circuit for ring oscillator-based power controller
Joseph B. Bernstein, Hashmonaim (IL); and Ilan Aharon, Bruchin (IL)
Assigned to Ariel Scientific Innovations Ltd., Ariel (IL)
Appl. No. 18/010,229
Filed by Ariel Scientific Innovations Ltd., Ariel (IL)
PCT Filed Jun. 15, 2021, PCT No. PCT/IL2021/050721
§ 371(c)(1), (2) Date Dec. 14, 2022,
PCT Pub. No. WO2021/255729, PCT Pub. Date Dec. 23, 2021.
Claims priority of provisional application 63/039,002, filed on Jun. 15, 2020.
Prior Publication US 2023/0253957 A1, Aug. 10, 2023
Int. Cl. H03K 3/0231 (2006.01); H02M 1/08 (2006.01); H02M 1/38 (2007.01); H02M 3/158 (2006.01); H03K 3/011 (2006.01); H03K 3/03 (2006.01); H03K 5/24 (2006.01); H03K 7/08 (2006.01); H03K 17/30 (2006.01)
CPC H03K 3/0231 (2013.01) [H02M 1/08 (2013.01); H02M 1/38 (2013.01); H02M 1/385 (2021.05); H02M 3/158 (2013.01); H03K 3/011 (2013.01); H03K 3/0315 (2013.01); H03K 5/2472 (2013.01); H03K 7/08 (2013.01); H03K 17/302 (2013.01); Y02B 70/10 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An integrated circuit built with enhancement mode Gallium Nitride (GaN) components, the integrated circuit comprising a comparator circuit configured to compare an input voltage with a reference voltage to provide a controllable constant current source, the comparator having a first drive transistor having a positive threshold voltage, the drive transistor being switched on and off based on a comparison result of said comparator, the integrated circuit further comprising an odd number of ring oscillator stages connected after said drivers, said ring oscillator stages forming a ring oscillator having a constant frequency.