Patent ID: 8803569

Claim:
A ramp generator circuit for generating a sawtooth waveform based on a clock signal, the ramp generator circuit comprising: an operational amplifier having an output terminal and a negative input terminal; a first switched capacitor device within a first feedback path located between the output terminal and the negative input terminal; a first plurality of switch devices within the first feedback path, wherein upon actuation of the first plurality of switches the first switched capacitor generates first ramp waveforms during first alternate clock periods of the clock signal; a second switched capacitor device within a second feedback path located between the output terminal and the negative input terminal; and a second plurality of switch devices within the second feedback path, wherein upon actuation of the second plurality of switches the second switched capacitor generates second ramp waveforms during second alternate clock periods of the clock signal, each of the first alternate clock periods of the clock signal being followed by an adjacent one of the second alternate clock periods of the clock signal.