| 摘要 |
In a conventional bias circuit, as a power supply voltage increases, a current supplied to a bandgap reference becomes unstable due to a fluctuation of the power supply voltage, which makes it impossible for the bias circuit to perform stable bias operations in some cases. A bias circuit of the present invention has a bandgap reference, and includes a first current path supplying a drive current to the bandgap reference, and a second current path supplying a current to the bandgap reference for a predetermined period of time after power-on.
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