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In a DC-DC converter, a technique for sensing current supplied to a load and establishing an output voltage that conforms to a predetermined load line. The current carried by an inductor is sensed and used to control the duty cycle of the voltage applied to the inductor, thereby controlling the outp

In a DC-DC converter, a technique for sensing current supplied to a load and establishing an output voltage that conforms to a predetermined load line. The current carried by an inductor is sensed and used to control the duty cycle of the voltage applied to the inductor, thereby controlling the output voltage. A current sensing circuit includes a feedback network. A pole attributable to the feedback network cancels a zero attributable to the inductor so that a control voltage is developed that varies substantially linearly with the load current.

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In a DC-DC converter, a technique for sensing current supplied to a load and establishing an output voltage that conforms to a predetermined load line. The current carried by an inductor is sensed and used to control the duty cycle of the voltage applied to the inductor, thereby controlling the outp

In a DC-DC converter, a technique for sensing current supplied to a load and establishing an output voltage that conforms to a predetermined load line. The current carried by an inductor is sensed and used to control the duty cycle of the voltage applied to the inductor, thereby controlling the output voltage. A current sensing circuit includes a feedback network. A pole attributable to the feedback network cancels a zero attributable to the inductor so that a control voltage is developed that varies substantially linearly with the load current. said current reference in Park vector format in said synchronous reference frame; a comparator using said current feedback signal and said current reference in said synchronous reference frame to provide a command; and a PI-regulator regulating said command to produce said voltage command. 5. The electrical power system of claim 1, further comprising a space vector modulation module, said space vector modulation module receiving said voltage command and providing control signals to said power converter.6. The electrical power system of claim 1, further comprising a plurality of current sensors, said plurality of current sensors disposed for sensing an AC current between said electric power source and said power converter, and for providing said current feedback signal.7. The electrical power system of claim 1 wherein said current reference comprises an angle component and an amplitude component.8. The electrical power system of claim 7, further comprising: a DC link voltage sensor for sensing a DC link voltage output of said power converter and providing a DC link voltage feed back signal; a comparator receiving said DC link voltage feed back signal and a DC link voltage command signal, and producing a DC link voltage error signal; and a PI-regulator regulating said DC link voltage error signal to produce a DC link voltage angle component, wherein said angle component of said current reference comprises said DC link voltage angle component and whereby said controller controls said DC link voltage output of said power converter. 9. The electrical power system of claim 8 further comprising: a current sensor disposed for sensing a DC current output of said power converter and providing a load current signal; a feedforward function module configured to receive said load current signal and produce a feedforward angle component; and a combiner configured to combine said DC link voltage angle component and said feedforward angle component so that said angle component of said current reference comprises said feedforward angle component whereby a gain sensitivity of said angle component of said current reference is minimized. 10. The electrical power system of claim 7, further comprising: a current sensor disposed for sensing a DC current output of said power converter and providing a load current signal; and a non-linear function generator configured to receive said load current signal and produce said amplitude component of said current reference, whereby said controller controls said DC current output of said power converter. 11. An electrical power system comprising: an electric power source comprising a high reactance generator adapted for providing AC power; a power converter connected to said electric power source; a plurality of current sensors, said plurality of current sensors disposed for sensing an AC current between said electric power source and said power converter, and for providing a current feedback signal; a position estimator receiving said current feedback signal in Park vector format and providing a synchronous reference frame, wherein said position estimator comprises: a multiplier configured to multiply said current feedback signal in Park vector format by a negative estimate of a transformation angle &thgr; in Park vector format to provide a synchronous frame signal;a PI-regulator configured to regulate said synchronous frame signal compared to zero to provide an estimated electrical frequency; andan integrator configured to integrate said estimated electrical frequency so as to provide said negative estimate of said transformation angle &thgr; to said multiplier and to provide said transformation angle &thgr; to said controller, whereby said position estimator provides said synchronous reference frame to said controller; a controller configured to provide a voltage command for controlling said power converter, said controller receiving said current feedback signal and