公开(公告)号：US20210041904A1

公开(公告)日：2021-02-11

申请号：US16826652

申请日：2020-03-23

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： CHIH-TE HUNG ,  I-CHEN LIN

IPC: G05F3/26 ,  H03K17/56 ,  G05F1/46

Abstract: The invention relates to a current source circuit, which includes a current generating circuit, a plurality of current mirror circuits, and a switching circuit. The current generating circuit generates a plurality of reference currents, which comprise a first reference current and a second reference current. The current mirror circuits output a plurality of mirror currents according to the first reference current and the second reference current. The switching circuit is coupled between the current generating circuit and the current mirror circuits. The first reference current is transmitted to the current mirror circuits through the switching circuit, and the second reference current is transmitted to the current mirror circuits through the switching circuit.