Open source tig AC/DC project
Inviato: mer set 28, 2011 15:45
Project Description:
The project consists in building an inverter-based combination
TIG and Stick welder based on a PIC 18F4431 microprocessor. The
welder is open source & uses readily available discrete components.
In addition, the build is modular: the welder can be built in whole
or in part, as required.
For example:
-Build just the inverter for pulsed DC TIG/Stick welding (scratch-start)
-Build just the second AC module for Tig welding aluminum (square wave)
-Build the third, High Frequency start module, to add HF starting.
Technical details:
-230V single phase
-75V Open Current Voltage
-225A Max Current
-255HZ max AC frequency
-0 to 100% wave balance
-20-80% phase current balance
-accepts a foot controller
-Pulsed DC: adjustable base & max current, frequency & duty cycle
-selectable start polarity
-selectable start current
-selectable HF start time
-ability to store up to 10 programs
80kHz PWM Transformer frequency
20kHz Closed loop Frequency
80kHz ADC current sampling
Complete details available at meccanicaedintorni.morpel.it
The project consists in building an inverter-based combination
TIG and Stick welder based on a PIC 18F4431 microprocessor. The
welder is open source & uses readily available discrete components.
In addition, the build is modular: the welder can be built in whole
or in part, as required.
For example:
-Build just the inverter for pulsed DC TIG/Stick welding (scratch-start)
-Build just the second AC module for Tig welding aluminum (square wave)
-Build the third, High Frequency start module, to add HF starting.
Technical details:
-230V single phase
-75V Open Current Voltage
-225A Max Current
-255HZ max AC frequency
-0 to 100% wave balance
-20-80% phase current balance
-accepts a foot controller
-Pulsed DC: adjustable base & max current, frequency & duty cycle
-selectable start polarity
-selectable start current
-selectable HF start time
-ability to store up to 10 programs
80kHz PWM Transformer frequency
20kHz Closed loop Frequency
80kHz ADC current sampling
Complete details available at meccanicaedintorni.morpel.it