Conversion equipment of the power saved type inverter welding machine of electricity

摘要

The present invention any commercial AC power, regardless of the input voltage of commercial power to the outside at the inverter welder commercial AC to be applied to automatically control the output of the direct-current voltage necessary for welding to a high-frequency switching DC power supply unit in series or in parallel depending on the drive of the thyristor is connected to the DC power outputted from the input bridge rectifier circuit and the torch switch may be input relates to a power conversion device of the low-power inverter welding machine power input is free to provide a power-saving, energy-saving power conversion device of the inverter welding machine according to the present invention includes a B-phase detector is connected to the commercial AC power source to identify the presence or absence on the B, the commercial AC power transformer with a power transformer of the type consisting of a triac to control power applied to the input voltage, compared with the reference voltage to the input voltage supplied via the power transformer to the voltage comparator and for detecting the size of the commercial AC voltage a frequency detector for detecting a receiving frequency to isolate the AC waveform at the output of low-voltage AC power of the power transformer, torch torch isolated switch for detecting the state of the switch input, the voltage comparator, the frequency detecting section, B-phase detector, torch Isolated switch and a microprocessor receiving a state from input, the microprocessor programmed commercial AC voltage and frequency to be input with the thyristor drive unit for automatically driving the thyristor in accordance with the output, etc., a display unit for displaying the control state according to the situation, characterized by comprising a communication unit for transmitting and receiving the status and other control boards.