Stabilizing power source apparatus

A power source apparatus for generating both a stabilized DC power output voltage and a stabilized AC power load current comprising:

• transformer means including a primary coil, a first secondary coil and a second secondary coil, wherein the first and second secondary coil are magnetically coupled to said primary coil, and the primary coil receives a DC input voltage;
• switching means connected to the primary coil of the transformer means for switching the DC input voltage supplied to the primary coil;
• means connected between the first secondary coil and a DC load for converting an output voltage of the first secondary coil into a DC output voltage;
• DC output detecting means responsive to the converting means for generating a first control signal in response to the DC output voltage;
• AC output detecting means coupled to the second secondary coil to which an AC load is coupled, for detecting the AC load current flowing to the AC load and for generating a second control signal in response to the AC voltage;
• DC output voltage stabilizing means connected to the DC output detecting means for stabilizing the DC output voltage in response to the first control signal;
• AC load current stabilizing means connected to the AC output detecting means for stabilizing the AC load current regardless of the AC load;
• and
• wherein said AC load current stabilizing means includes switching frequency control means connected to the AC output detecting means for controlling the frequency of switching of the switching means in response to the second control signal to stabilize the AC load current and impedance means connected between the second secondary coil and the AC load for controlling the AC load current by varying the impedance according to the frequency of the signal generated on the second secondary coil.