Patent ID: 11857783
Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. A system comprising:
a stimulator comprising an array of independently addressable electrodes configured to be positioned on a patient's skin, each electrode of the array of electrodes is configured for transcutaneous stimulation;
at least one return electrode;
one or more digital-to-analog converters (DACs);
an output stage comprising one or more transistors;
one or more programmable gain amplifiers (PGAs) coupled to the one or more DACs;
a high pass filter coupled to the output stage; and
a controller comprising:
a non-transitory memory storing instructions; and
a processor configured to access the non-transitory memory and to execute the instructions to at least:
deliver an electrical waveform with a set of stimulation parameters to one or more independently addressable electrodes in the array of electrodes; and
deliver another electrical waveform with another set of stimulation parameters to one or more other independently addressable electrodes in the array of electrodes,
wherein the stimulator is configured to emit a shaped and focused electrical field for stimulation of a target tissue based on the electrical waveform and the other electrical waveform,
wherein the electrical waveform and the other electrical waveform are directly configured as a function of base/gate voltage of the one or more transistors, and
wherein a current or voltage output is delivered between the one or more DACs and the one or more PGAs to drive the one or more transistors of the output stage through the high pass filter.