Husch Blackwell LLP
Power source circuit
A semiconductor device is provided, which comprises a rectifier circuit configured to generate a first voltage from a first signal inputted from an input terminal, a comparing circuit configured to compare a reference voltage and the first voltage inputted from the rectifier circuit and to output a second signal to a switch, and a voltage generation circuit configured to generate a second voltage from the first signal inputted from the input terminal. The rectifier circuit includes a transistor including at least a control terminal, and the voltage generation circuit inputs the second voltage to the control terminal when the switch is turned on in accordance with the second signal.
Semiconductor Energy Laboratory Co., Ltd.
G G
G06K G06K
inventional inventional
Masashi Kiyoshi
Fujita Kato