Electric screwdriver of economical electricity mode loading

摘要

Topic According to torque, choosing function, it offers the electric screwdriver of economical electricity mode loading which you can use.SolutionsChange-over Switch 2 of economical electricity mode, ultra capacitor 3, metal oxide semiconductor field-effects transistor transistor 4, it possesses the control unit where micro controller 5 is jointed mutually electrically, entry side of the control unit and electric battery 6, joints with the output side and motor 7 electrically. High performance mode, it can provide normal mode and economical electricity mode in use mode, economical electricity mode as 30%, - 50% of the output enable range designates the output power range of output torque and the electric battery can delay the electric current rise. Normal mode designates the output power range as 50%, - 80% makes the electric current rise of sort usually. High performance mode designates the output power range as 80%, - 100% makes the electric current rise do most quickly. Choice figure Drawing 3