Patent ID: 9654000
Date: 2017-05-16
CPC Classifications: H02H,H02M

Claim:
1. A buck converter having an output node and a ground node, wherein a load is connected or connectable between the output node and the ground node and the buck converter is arranged to drive an output current I_out through the output node, thereby generating an output voltage V_out in the output node; the buck converter comprises: a current control unit arranged to control the output current I_out in dependence on a control voltage V_ctl provided at a control node; and a voltage control unit arranged to provide the control voltage V_ctl and comprising: an integrator unit arranged to control the control voltage V_ctl in dependence on a time integral of a difference between the output voltage V_out and a reference voltage V_ref; at least one of an overshoot detector arranged to detect an overshoot of the output voltage V_out, and an undershoot detector arranged to detect an undershoot of the output voltage V_out; and a current source connected to the control node and arranged to pull a current of amplitude I_pull from the control node in response to the overshoot detector detecting an overshoot of the output voltage V_out, or arranged to push a current of amplitude I_push to the control node in response to the undershoot detector detecting an undershoot of the output voltage V_out, or both, wherein