18743811. Regulator And Circuit Device (SEIKO EPSON CORPORATION)
Contents
Regulator And Circuit Device
Organization Name
Inventor(s)
Regulator And Circuit Device
This abstract first appeared for US patent application 18743811 titled 'Regulator And Circuit Device
Original Abstract Submitted
A regulator includes a voltage divider circuit that output, as a feedback voltage, a voltage generated by dividing an output voltage; an operational amplifier that compares the feedback voltage with a reference voltage; a drive transistor being disposed between a node at an input voltage and a node at the output voltage and that is controlled based on an output of the operational amplifier; a logic circuit that output an adjustment signal for the output voltage; and an output voltage adjustment circuit configured to adjust the output voltage based on the adjustment signal. The voltage divider circuit includes a plurality of resistors and a plurality of switches each of which is disposed in parallel with a corresponding one of the plurality of resistors. The output voltage adjustment circuit output, to the plurality of switches, a control signal in accordance with the adjustment signal, and the output voltage is supplied as a power supply voltage to the output voltage adjustment circuit.
