Overcurrent protection device and power tool

摘要

A drive controller (11) includes a reduction switch (17) that receives a determination signal (Sc) from an overcurrent determination unit (16) without involving a control circuit (20). When the determination signal (Sc) indicates the occurrence of an overcurrent, the reduction switch (17) provides a drive current generation unit (13, 15a-15c) with a switching signal (Sx) to reduce the generated drive current.