System for combining electrical waveforms into a combined electrical waveform

摘要

A neuromodulation system comprises electrical terminals configured for being respectively coupled to electrodes. The system further comprises modulation output circuitry configured for respectively outputting individual electrical pulse trains in timing channels to the electrical terminals, wherein each of the pulse trains has a modulation pulse, and at least one of the pulse trains has a charge recovery pulse associated with the modulation pulse of the respective pulse train. The neuromodulation system further comprises control circuitry configured for controlling the modulation output circuitry in a manner that sequentially outputs the modulation pulses of the respective pulse trains to a common set of the electrical terminals without an intervening charge recovery pulse, and outputting the charge recovery pulse(s) to the common set of the electrical terminals subsequent to the sequential modulation pulses, thereby creating a combined electrical pulse train at the common set of electrical terminals.