초록 ▼

A method and apparatus for plasma cutting includes a cutting power supply, preferably a buck converter, and a compressor. The cutting power supply provides power to a plasma torch, and the compressor provides air to the torch. The air compressor is integrated into the plasma cutter, and includes a c

A method and apparatus for plasma cutting includes a cutting power supply, preferably a buck converter, and a compressor. The cutting power supply provides power to a plasma torch, and the compressor provides air to the torch. The air compressor is integrated into the plasma cutter, and includes a compressor motor, preferably with a buck convertor power supply, or having the motor windings are part of the buck converter that is the cutting power supply. The motor is regulated regulator to a fixed setpoint or a user setpoint by a compressor regulator in response to a feedback signal, preferably a compressor motor voltage feedback signal. The compressor also turns the compressor on and/off in response to a trigger and/or cutting current feedback signal and has an on/off circuit responsive thereto in various alternatives. The cutting power controller and the compressor regulator are part of an integrated controller, and/or the cutting power supply and the air compressor are in a common housing, and/or the cutting power supply and the air compressor have an integrated power supply.

대표청구항 ▼

[The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [3.]a cutting power supply disposed to provide power to a plasma torch;an air compressor, disposed to provide air to the plasma torch, wherein the air compressor is integrated into the p

[The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [3.]a cutting power supply disposed to provide power to a plasma torch;an air compressor, disposed to provide air to the plasma torch, wherein the air compressor is integrated into the plasma cutter, and wherein the air compressor includes a compressor motor; anda compressor regulator disposed to receive a feedback signal, and further disposed to regulate the compressor motor in response to the feedback signal and further disposed to receive a plasma current feedback signal, and includes an on/off circuit responsive to the plasma current feedback signal.