| 摘要 |
PROBLEM TO BE SOLVED: To provide a reference voltage generation circuit capable of preventing the oscillation of output voltage and reducing power consumption. SOLUTION: This reference voltage generation circuit is constituted of comparators 1, 2, 5, a PMOS transistor(TR) 3, NMOS TR 4, and a bias current adjusting circuit 6 for receiving a comparison output from the comparator 5 and controlling the bias currents of the comparators 1, 2. Voltage inputs V1 , V2 from input terminals 7, 8 are respectively inputted to the positive phase input terminals of the comparators 1, 2 and output voltage V0 is fed back and inputted to the reverse phase input terminals of the comparators 1, 2. Voltage outputs from the comparators 1, 2 are respectively inputted to the gates of the TRs 4, 3, voltage V3 from an input terminal 9 is inputted to the positive phase input terminal of the comparator 5, the output voltage V0 is inputted to the reverse phase input therminal of the comparator 5, and the circuit 6 executes current control action based upon the comparison output from the comparator 5. |
