US Patent 7898185 Current controlled driver

Various current controlled driver apparatuses are disclosed herein. For example, some embodiments of the present invention provide a current controlled driver including a control circuit having a current input and a driver circuit having a power input. The control circuit has an output that is directly electrically connected to an input of the driver circuit. The control circuit operates between a positive voltage level and a ground potential. The driver circuit is adapted to operate between a higher positive voltage level and a negative voltage level.