Removing all parts of cover, rings, carbon brush, brush box, brush box shell and shortcircuit ring equipment (some motor have no short circuit ring equipment).
先拆下电动机的护罩、滑环、碳刷、刷盒、刷盒支架及短路环装置(有的电机无短路环装置)等全部零件。
2
UC3846 is used for PWM, pulse transformer driven by bridge can transfer signal and power for IGBT in main circuit, quick protection is necessary for shortcircuit often happen during brush plate.