With　the　rapid　development　of　implantable　medical　devices,　traditional　battery　power　sources　can　no　longer　meet　their　power　supply　demands.　Utilizing　ultrasound-driven　triboelectric　nanogenerators　(USD-TENG)　for　wireless　energy　transmission　can　provide　them　with　sustainable　electrical　energy,　offering　broad　application　prospects.　This　paper　proposes　an　adaptive　nanoequivalent　circuit　optimization　algorithm　to　design　the　equivalent　circuit　of　USD-TENG,　and　based　on　this,　designs　the　subsequent　power　management　circuit,　achieving　a　stable　voltage　supply　of　1.8V.　This　technology　provides　a　technical　solution　for　wireless　power　supply　circuits　in　implantable　medical　devices.　©　2023　IEEE.