Current driving (e.g., fan in/out, off chip driving, etc.):
(under subclass 62) Subject matter comprising a current converting circuit to provide an operating compatibility between a logic function device and its circuit environment which may be a higher current load device (off chip driving), or a series connection of plural small loads which result in higher current drawing (fan in/out).
SEE OR SEARCH CLASS
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,