Patent ID: 9214927
Filing Date: 2015-12-15
Classification: H03K

Abstract:
1. An oscillator circuit, comprising: a flip-flop for generating a clock signal at an output thereof; first and second current sources; first and second capacitors; first and second comparators for comparing a voltage across the first and second capacitors respectively with a reference voltage, wherein each comparator has an output connected to an input of the flip-flop; and a switching circuit connected to the output of the flip-flop and arranged to direct (i) on a first half cycle of the clock signal, a first charging current to the first capacitor from the first current source and to direct a first biasing current to the first comparator from the second current source, and (ii) on a second half cycle of the clock signal, a second charging current to the second capacitor from the second current source and to direct a second biasing current to the second comparator from the first current source.