主权项 |
1. A current steering circuit for controlling a branch current flowing through a branch which is coupled to a first main switch, the current steering circuit comprising:
a sensing device, coupled to the branch, the sensing device arranged for sensing the branch current to generate a sensing result; a first auxiliary switch, coupled in parallel with the first main switch; and a control unit, coupled to the sensing device and the first auxiliary switch, wherein while the first main switch is turned on, the control unit generates a first switch control signal to the first auxiliary switch, and adjusts a duty cycle of the first switch control signal according to the sensing result in order to adjust the branch current. |