Direct driver voltage to ramp signal generation

A method for generating a periodic ramp waveform may include in a sampling phase of each period of operation of a ramp-generation circuit, sampling a reference voltage onto a sampling capacitor. The method may also include in a transfer phase of each period of operation of the ramp-generation circuit: discharging the reference voltage from the sampling capacitor through at least one resistor to generate a current and generating the periodic ramp waveform by integrating the current with at least one integrating capacitor, wherein a duration of the transfer phase is significantly smaller than a time constant defined by a capacitance of the sampling capacitor and a resistance of the at least one resistor, such that the reference voltage discharges linearly from the sampling capacitor as a function of time during the transfer phase.