公开(公告)号：US20160144442A1

公开(公告)日：2016-05-26

申请号：US14787682

申请日：2014-07-07

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： YOSHIAKI TANAKA ,  YOSHIYUKI TABATA ,  SHINSUKE SHIMABAYASHI

IPC: B23K9/073 ,  B23K9/10 ,  B23K9/095 ,  H02M3/335

CPC classification number: B23K9/073 ,  B23K9/09 ,  B23K9/095 ,  B23K9/0953 ,  B23K9/1043 ,  B23K9/167 ,  B23K9/173 ,  H02M3/33515 ,  H02M7/53871 ,  Y02P70/181

Abstract: The welding device of the present disclosure has a switching section, a setting section, an output detector, a controller, a frequency controller, and a driver. The switching section is formed of a switching element. The setting section determines setting output. The output detector detects welding output. The controller calculates an output-on period of the switching section according to the setting output and the welding output. The frequency controller determines an inverter frequency based on the output-on period. The driver controls on/off operation of a switching element of the switching section based on the inverter frequency and the output-on period. When the output-on period is calculated using a first ratio, the inverter frequency is determined to a first frequency, and when the output-on period is calculated using a second ratio smaller than the first ratio, the inverter frequency is determined to a second frequency higher than the first frequency.

Abstract translation: 本公开的焊接装置具有切换部，设定部，输出检测部，控制部，频率控制部以及驱动部。 开关部由开关元件构成。 设置部分确定设置输出。 输出检测器检测焊接输出。 控制器根据设定输出和焊接输出计算切换部的输出周期。 频率控制器基于输出周期来确定逆变器频率。 驱动器基于逆变器频率和输出接通周期来控制开关部的开关元件的开/关动作。 当使用第一比率计算输出周期时，将逆变器频率确定为第一频率，并且当使用小于第一比率的第二比率来计算输出周期时，将逆变器频率确定为第二频率 频率高于第一频率。