A METHOD OF OPERATIING AN ELECTRICAL STIMULATION DEVICE WITH TWO OR MORE STIMULATION ENERGY SUPPLIES, AND A STIMULATING DEVICE

Conventional devices deliver a degree of electrical charge into biological tissues; -to satisfy regulatory and safety concerns, measures are taken to maintain a zero-charge residual at the stimulation site.Disclosed herein is a method of controlling electrical energy provided by a stimulation device to one or stimulation electrodes comprised in the device, the device including: a first stimulation electrode; a pulse energy controller for transferring electrical energy as one or more electrical stimulation pulses to the first stimulation electrode; the pulse energy controller further including two or more stimulation energy supplies for each supplying electrical energy substantially concurrently to the first stimulation electrode as a first pulse; and each supplying electrical energy separately to the first stimulation electrode as a second pulse.A simpler, more accurate and less-expensive control of stimulation may be provided by considering each energy supply as an energy building block, which may be selected as required.