INRUSH CURRENT PREVENTION CIRCUIT OF MICROWAVE OVEN CAPABLE OF CONTROLLING RELAY DRIVING TIME,申请号KR20030022733-传众专利搜索

INRUSH CURRENT PREVENTION CIRCUIT OF MICROWAVE OVEN CAPABLE OF CONTROLLING RELAY DRIVING TIME

申请公布号：KR20040088737(A)

申请号：KR20030022733

申请日期：2003.04.10

申请公布日期：2004.10.20

申请人：

LG ELECTRONICS INC.

发明人：SUK, HO JAE

分类号：H05B6/68;(IPC1-7):H05B6/68

主分类号：H05B6/68

摘要：PURPOSE: An inrush current prevention circuit of a microwave oven is provided to prevent an inrush current generated at loads by controlling a relay driving time. CONSTITUTION: An inrush current prevention circuit of a microwave oven comprises a micom for outputting a power driving signal and a main driving signal in accordance with a cook order of a user; a first transistor having a base connected to an output port of the micom; a first relay having an end part connected to a constant voltage supply terminal and the other end part connected to a collector of the first transistor; and a Zener diode having an end part connected to the constant voltage supply terminal and the other end part connected to an emitter of the first transistor.