Patent ID: 7557637

Claim:
A semiconductor circuit comprising: a reference voltage terminal; a first power source voltage terminal higher in voltage than the reference voltage terminal; at least a set of output terminals arranged between the reference voltage terminal and the first power source voltage terminal; a plurality of first switching elements arranged between the output terminals and the first power source voltage terminal; and a plurality of first controlling circuits for controlling the first switching elements; wherein the first controlling circuits operate between the voltage of the plurality of high-voltage-side voltage terminals and the voltage of a plurality of low-voltage-side voltage terminals, respectively; wherein the voltage at the low-voltage-side voltage terminals is a negative voltage lower than the voltage at the source terminal of the first switching elements; wherein a plurality of first capacitors are arranged between the output terminals and a second power source voltage terminal; and wherein the voltage at the low-voltage-side voltage terminals is generated by the voltage charged to the first capacitors.