Stimulation source generation circuit for nerve stimulator

A stimulation source generation circuit for a nerve stimulator, comprising:

• a power module,
• a boosting module, and
• an adjustment module;
• wherein the power module is configured to supply an input voltage;
• wherein the boosting module is connected to the power module and is configured to boost the input voltage and generate a stimulation source;
• wherein the boosting module comprises a charge branch and a discharge branch, wherein the charge branch is connected in parallel with two ends of the power module and comprises an inductor and a first MOS tube, one end of the inductor is connected to a positive electrode of the power module, another end of the inductor is connected to an input end of the first MOS tube, and an output end of the first MOS tube is connected to a negative electrode of the power module;
• wherein the discharge branch comprises a second MOS tube and an output branch for outputting the stimulation source, an input end of the second MOS tube is connected to the another end of the inductor, an output end of the second MOS tube is connected to one end of the output branch, and the another end of the output branch is connected to the negative electrode of the power module;
• wherein the adjustment module is connected to the output branch and is configured to output an operating frequency according to a magnitude of the stimulation source;
• wherein the adjustment module is further connected to a control end of the first MOS tube and a control end of the second MOS tube and is configured to adjust on or off of the first MOS tube and the second MOS tube according to the operating frequency and only at most one of the first MOS tube or the second MOS tube is turned on at a same time;
• wherein the adjustment module further comprises a first comparator branch, a frequency controller, and a first set voltage branch, the frequency controller communicatively connected to the control end of the first MOS tube and the control end of the second MOS tube;
• and
• wherein the first comparator branch comprises a first comparator, an output end of the first comparator connected to the frequency controller, one of a positive input end or a negative input end of the first comparator selectively connected to the output branch, and another one of the positive input end or the negative input end of the first comparator connected to the first set voltage branch.