CPC B23K 9/1043 (2013.01) [B23K 9/095 (2013.01); B23K 9/1012 (2013.01); H02M 7/5387 (2013.01)] | 20 Claims |
1. A welding, cutting, or heating circuit, comprising:
an input leg comprising a first capacitor;
a pulse width modulating leg coupled to the input leg, wherein the pulse width modulating leg is configured to convert direct current (DC) voltage from the first capacitor to current in a parasitic output inductance of a load coupled to the pulse width modulating leg, wherein the pulse width modulation leg is configured to function as a bidirectional buck converter;
a steering leg coupled to the pulse width modulating leg, wherein the steering leg is configured to determine a direction of current flow through an output; and
a blocking diode between the first capacitor and a second capacitor to allow current to flow to the output from the first capacitor in an on configuration and to block current to the first capacitor from the second capacitor in an off configuration.
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