| 摘要 |
PROBLEM TO BE SOLVED: To provide a power equipment capable of outputting a voltage whose accuracy is very high and which is stable even though power acquired from an external power supply source is unstable. SOLUTION: A first reference voltage generation circuit 2 generates a first reference voltage on the basis of power acquired by a power acquiring part 1. First, a regulator circuit 5 outputs various voltages on the basis of the first reference voltage. Then, a second reference voltage generation circuit 3 generates a second reference voltage with high accuracy on the basis of an output voltage from the regulator circuit 5. Then, a third reference voltage generation circuit 4 generates a third reference voltage on the basis of the second reference voltage. The regulator circuit 5 outputs various voltages on the basis of the third reference voltage with high accuracy after the third reference voltage starts sufficiently. |
