| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply circuit capable of generating first and second power supply voltages while maintaining good power supply voltage dependency, ambient temperature change dependency, and load current dependency.SOLUTION: A comparator 5 compares a first power supply voltage Vout1 generated by a first power supply voltage generator circuit 3 and a second power supply voltage Vout2 generated by a second power supply voltage generator circuit 4. Logic 6 of a logic circuit regulates and controls the second power supply voltage Vout2 in accordance with a result of comparison made by the comparator 5 by setting the first power supply voltage Vout1 as a target voltage. |
