a voltage reducing circuit which are realized by electronic circuits to stabilize an output voltage of the fuel cell and fix the output voltage to the loading application_number US 67031307 A description fig1 is an illustrative view of an embodiment of a fuel cell voltage stabilization apparatus of the invention the fuel cell 110 is connected to the voltage stabilization apparatus 150 and the voltage stabilization apparatus 150 stabilizes and provides the power generated by the fuel cell 110 in a predetermined voltage to a loading terminal 140 the fuel cell 110 can be a power generating device utilizing hydrogen rich fuels and oxygen rich fuels to perform chemical response and generate electricity for example in an embodiment of a direct methyl alcohol fuel cell the fuel cell 110 utilizes methyl alcohol and oxygen to perform chemical response and generate electricity the voltage stabilization apparatus 150 comprises a voltage boost device to raise the output voltage of the fuel cell 110 and a voltage reducing device to reduce the output voltage of the fuel cell 110 and switches between the voltage boost device and the voltage reducing device to regulate the output voltage of the fuel cell 110 according to the voltage requirement of the loading terminal 140 the voltage boost device and the voltage reducing device can be achieved by a voltage boost circuit 120 and a low dropout voltage linear regulator ldo 130 the voltage boost circuit 120 and the voltage reduce circuit 130 are connected in parallel the loading terminal 140 is.