2024年4月13日发(作者：)

电磁炉原理图和工作原理与维

修(全)

电磁炉原理图和工作原理与维修

目 录

一、简介 .................................................................................................... 3

1.2 458系列简介 ........................................................................................... 3

二、原理分析 ............................................................................................ 3

2.1 特殊零件简介 .......................................................................................... 3

2.2 电路方框图 .............................................................................................. 5

2.3 主回路原理分析 ...................................................................................... 6

2.4 振荡电路 .................................................................................................. 7

2.5 IGBT激励电路 ....................................................................................... 8

2.6 PWM脉宽调控电路 ............................................................................... 8

2.7 同步电路 .................................................................................................. 8

2.8 加热开关控制 .......................................................................................... 9

2.9 VAC检测电路 ......................................................................................... 9

2.10 电流检测电路 ...................................................................................... 10

2.11 VCE检测电路 ..................................................................................... 10

2.12 浪涌电压监测电路 .............................................................................. 11

2.13 过零检测 .............................................................................................. 11

2.14 锅底温度监测电路 .............................................................................. 12

2.15 IGBT温度监测电路 ........................................................................... 12

2.16 散热系统 .............................................................................................. 13

2.17 主电源 .................................................................................................. 13

2.18辅助电源 ................................................................................................ 13

2.19 报警电路 .............................................................................................. 14

三、故障维修 .......................................................................................... 14

3.1故障代码 .................................................................................................. 14

1.1 电磁加热原理 .......................................................................................... 3