Patent ID: 11892481
Assignee: MITSUMI ELECTRIC CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 12:
13. A semiconductor integrated circuit comprising:
a power supply terminal;
a first output terminal configured to be externally coupled to a load and via which an output current is configured to be output;
a second output terminal;
a control circuit;
a first switching circuit of which an input side is electrically coupled to the power supply terminal, the first switching circuit including a first control terminal;
a second switching circuit of which an input side is electrically coupled to the power supply terminal, the second switching circuit including a second control terminal electrically coupled to the first control terminal of the first switching circuit;
a third switching circuit electrically coupled in series with the first switching circuit, an output side of the third switching circuit being electrically coupled to the first output terminal;
a fourth switching circuit electrically coupled in series with the second switching circuit, the fourth switching circuit including a fourth control terminal electrically coupled to the third control terminal of the third switching circuit, and
a current amplifier configured to:
detect a difference between an output voltage of the third switching circuit and an output voltage of the fourth switching circuit,
generate a relative current proportional to the output current, and
output the relative current to the second output terminal,

wherein the control circuit is configured to turn on the first switching circuit and the third switching circuit, so that the power supply terminal and the first output terminal become conductive.