Tungsten Inert Gas (TIG) welding, also known as gas tungsten arc welding, uses a non-consumable tungsten electrode to produce a weld. A variety of industries use TIG welding for high-quality welding purposes usually on thin metals, such as aluminum. Renesas' TIG Welding Controller solution is a complete DC + AC/DC TIG programmable welding control system.

System Benefits​:

  • Precise, wide range, arc-current measurement on the secondary side
  • Detection of ozone and other dangerous gases concentration
  • Isolated controller for high-side measurements/control
  • IR multi-touch HMI display, operable with gloves
  • Connected via Wi-Fi/Bluetooth® Low Energy (LE)
  • Control circuitry for water cooling (enabling compact tool)




  • High-class 230V DC + AC/DC TIG (WIG) welding machines
  • Welding machines with water cooling

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4:3 ratio Sheet.1 Sheet.2 Sheet.3 Sheet.4 EU125 EU125 EU125 AC Rectifier & Input Stage AC Rectifier & Input Stage AC Rectifier & Input Stage 2ph Resonant Inverter 2ph Resonant Inverter 2ph Resonant Inverter Output Rectifier + Filter Output Rectifier + Filter Output Rectifier + Filter Modulator Modulator Modulator Buck 1 Buck Buck IPS/OLED IPS/OLED IPS/OLED Wi-Fi Bluetooth Wi-Fi Bluetooth Wi-Fi Bluetooth Air Quality 1 Air Quality Air Quality Air Quality 2 Air Quality Air Quality Buck 2 Buck Buck Humidity & Temperature Sensor Humidity & Temperature Sensor Humidity & Temperature Sensor Water-flow Detector Water-flow Detector Water-flow Detector Gas Solenoid Gas Solenoid Gas Solenoid Gas Pressure Sensor Gas Pressure Sensor Gas Pressure Sensor Water-cooling Pump 12 or 230V Water-cooling Pump 12 or 230V Water-cooling Pump 12 or 230V Transformer Inductor Iron Core Line.841 Inductor Air Core.212 Sheet.57 Sheet.58 Sheet.59 Sheet.60 Sheet.61 Sheet.62 Sheet.63 Sheet.64 Sheet.65 Line.29 Transformer Line.841 Inductor Air Core.509 Sheet.70 Sheet.71 Sheet.72 Sheet.73 Sheet.74 Sheet.75 Sheet.76 Sheet.77 Sheet.78 Line.29 Inductor Air Core.212 Sheet.81 Sheet.82 Sheet.83 Sheet.84 Sheet.85 Sheet.86 Sheet.87 Sheet.88 Sheet.89 TIA TIA TIA HF Ignition HF Ignition HF Ignition Transformer Inductor Coreless (Air conductor).112 Sheet.113 Sheet.114 Sheet.115 Sheet.116 Sheet.117 Sheet.118 Sheet.119 Sheet.120 Sheet.121 Transformer Inductor Coreless (Air conductor).122 Sheet.123 Sheet.124 Sheet.125 Sheet.126 Sheet.127 Sheet.128 Sheet.129 Sheet.130 Sheet.131 Sheet.132 SPST NC Switch Sheet.141 Sheet.142 Sheet.143 Sheet.144 Sheet.145 Sheet.146 Negative Power Rail Line.758 Line.759 Negative Power Rail.152 Line.758 Line.759 DC 12V Isolated DC 12V Isolated DC 12V Isolated Sheet.156 Sheet.157 Sheet.158 Sheet.159 Sheet.160 Sheet.161 Sheet.162 Sheet.163 Sheet.164 Sheet.165 Sheet.166 Sheet.167 Sheet.168 Sheet.133 Sheet.169 Sheet.170 Sheet.171 Sheet.172 Sheet.173 Sheet.174 Sheet.175 Sheet.176 Sheet.177 Sheet.178 Sheet.179 Sheet.180 Sheet.181 Sheet.182 Sheet.183 Sheet.184 Sheet.185 Sheet.186 Sheet.189 Sheet.191 Sheet.192 Sheet.193 Sheet.196 Sheet.197 Sheet.198 Sheet.199 Sheet.200 Sheet.201 Sheet.202 Sheet.203 Sheet.204 Sheet.205 Sheet.206 Sheet.207 Sheet.208 Sheet.209 Sheet.210 Sheet.211 Sheet.212 Sheet.213 Sheet.214 Sheet.215 Sheet.216 Sheet.217 Sheet.218 Sheet.219 Sheet.220 Sheet.222 Sheet.223 Sheet.224 Sheet.225 Sheet.226 Sheet.227 Sheet.228 Sheet.229 Sheet.230 Sheet.233 Sheet.234 Sheet.235 Sheet.236 Sheet.237 Sheet.238 Sheet.239 Sheet.240 Transformer.241 Line.841 Inductor Air Core.509 Sheet.244 Sheet.245 Sheet.246 Sheet.247 Sheet.248 Sheet.249 Sheet.250 Sheet.251 Sheet.252 Line.29 Inductor Air Core.212 Sheet.255 Sheet.256 Sheet.257 Sheet.258 Sheet.259 Sheet.260 Sheet.261 Sheet.262 Sheet.263 Connector 1.165 3.3V 1Amax 3.3V 1Amax 3.3V 1Amax Connector 1.165.266 Connector 1.267 Connector 1.165.268 Connector 1.165.269 Connector 1.165.270 Connector 1.165.271 Connector 1.165.272 137mAmax 137mAmax 137mAmax 320mAmax 320m Amax 320mAmax 2 2 2 2 Sheet.279 24.4µAmax 24.4µAmax 24.4µAmax 2 2 2 2 Sheet.283 2 2 2 2 Sheet.286 230V/16A (1phase EU) 230V/16A (1phase EU) 230V/16A(1phase EU) Electrode Electrode Electrode Electrode Electrode Electrode Sheet.290 2 2 2 2 Sheet.293 3mAmax 3mAmax 3mAmax 5V 500mAmax 5V 500mAmax 5V 500mAmax Connector 1.165.296 3 3 3 3 Sheet.299 3 3 3 3 Sheet.303 Connector 1.165.304 230 230 230 Galvanic Isolation Galvanic Isolation Galvanic Isolation 12V 12V 12V 16.2mAmax 16.2m Amax 16.2mAmax 13mAmax 13m Amax 13mAmax 13mAmax 13m Amax 13mAmax Hot Area Hot Area Hot Area Connector dotted line Sheet.315 MCU MCU MCU Vdd Vdd Vdd ADC ADC ADC SPI SPI SPI PWM PWM PWM SCI SCI SCI GPIO GPIO GPIO Sheet.316 Microcontroller MCU MCU PWM PWM PWM SPI SPI SPI GPIO GPIO GPIO I2C I2C I2C SCI SCI SCI Vdd Vdd Vdd Graphic IP Graphic IP Graphic IP
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