Regulated AC to DC converter for aerospace applications

An aerospace system for generating regulated DC power from AC power, comprising:

• an AC power source for generating 3-phase AC power;
• an input transformer for receiving and phase-shifting said 3-phase AC power and for dividing the phase-shifted AC power into 2 channels;
• a set of 6-pulse rectifiers in each of said 2 channels, coupled to said transformer, for rectifying the phase-shifted AC power;
• a high frequency switching converter in each of said 2 channels, respectively coupled to said set of rectifiers, for chopping the rectified power;
• a step-down transformer in each of said 2 channels, respectively coupled to said high frequency switching converter, for isolating and stepping down the chopped power;
• an output rectifier in each of said 2 channels, respectively coupled to said step-down transformer, for further rectifying the stepped down power;
• and
• a filter, coupled to said output rectifiers, for filtering the further rectified power to produce a low ripple DC power that is regulated by controlling each said high frequency switching converter.

A method for converting AC power into regulated DC power, comprising:

• receiving and phase-shifting 3-phase AC power;
• dividing the phase-shifted AC power into 2 channels;
• rectifying the phase-shifted AC power in each of said 2 channels;
• chopping the rectified power in each of said 2 channels;
• isolating and stepping down the chopped power in each of said 2 channels;
• further rectifying the stepped down power in each of said 2 channels;
• and
• filtering the further rectified power to produce a low ripple DC power that is regulated by controlling a pulse width of switching cycles.