| 摘要 |
<p>A power supply circuit which is suitable as a power supply for use in driving a liquid crystal display, wherein on the basis of power source electric potentials (VDD, VEE), a voltage is divided by voltage dividing resistors (R1 to R5), and through operational amplifiers (OP1 to OP4) that comprise voltage followers, output electric potentials (V1 to V5) are output. The power source electric potential (VDD) and an intermediate electric potential (Va) which is output from a voltage dividing circuit (S) are supplied to the operational amplifiers (OP1, OP2), and the intermediate electric potential (Va) and the power source electric potential (VEE) are supplied to the operational amplifiers (OP3, OP4). In the voltage dividing circuit (S), a parallel circuit component comprising a large resistors (R12) and a condenser (C5) and a parallel circuit component comprising a large resistor (R13) and a condenser (C6) are connected in series between the power source electric potential (VDD) and the power source electric potential (VEE), and the intermediate electric potential (Va) is output from the point of connection of these two parallel circuit components. <IMAGE></p> |
