Patent ID: 11899479
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Control (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A digitally controlled low dropout regulator, comprising:
a plurality of Analog-Digital (AD) converters; and
an impedance variable circuit, each of the plurality of AD converters including a comparator, wherein
a first signal from each of the plurality of AD converters is input to the impedance variable circuit,
a plurality of the first signals is input to the impedance variable circuit, and a second signal output from the impedance variable circuit is input to one of two terminals of each of the plurality of AD converters,
when one of the plurality of AD converters is in operation, another of the plurality of AD converters performs auto-zero processing to set a voltage value used as a reference, and
the comparator included in each of the plurality of AD converters compares a voltage value of the second signal input to the one of the two terminals with the set voltage value.