초록 ▼

A plasma arc cutting power supply, and method of providing plasma cutting power, is disclosed. It includes a source of power having, preferably an engine or transformer based power source, that provides a main power output and an auxiliary power output. A two-state configuration circuit is in electr

A plasma arc cutting power supply, and method of providing plasma cutting power, is disclosed. It includes a source of power having, preferably an engine or transformer based power source, that provides a main power output and an auxiliary power output. A two-state configuration circuit is in electrical communication with the auxiliary power output. The auxiliary power output receives voltage of a first magnitude with a non-floating ground when the configuration circuit is in its first state. The auxiliary power output receives voltage of a second magnitude, preferably different than the first magnitude, with a floating ground, when the configuration circuit is in its second state. When a plasma cutting circuit is connected to the auxiliary power output the configuration circuit is set in its second state. The plasma cutting circuit includes at least one chopper. A safety circuit that disables the plasma output includes a GFI or optical isolator.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A power supply for providing a plasma cutting output to a pair of plasma cutting output terminals, comprising:a source of power, including a main power output and an auxiliary powe

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A power supply for providing a plasma cutting output to a pair of plasma cutting output terminals, comprising:a source of power, including a main power output and an auxiliary power output; anda configuration circuit in electrical communication with the auxiliary power output, wherein the configuration circuit has a first state in which the auxiliary power output provides a voltage of a first magnitude and has a non floating ground in response to a plasma cutter not being connected to the auxiliary power output, and wherein the configuration circuit has a second state in which the auxiliary power output provides a voltage of a second magnitude and has a floating ground in response to the plasma cutter being connected to the auxiliary power output.