Invention Grant
- Patent Title: Method and apparatus for providing welding power
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Application No.: US13843926Application Date: 2013-03-15
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Publication No.: US10207351B2Publication Date: 2019-02-19
- Inventor: Andrew Joseph Henry
- Applicant: Andrew Joseph Henry
- Applicant Address: US IL Glenview
- Assignee: Illinois Tool Works Inc.
- Current Assignee: Illinois Tool Works Inc.
- Current Assignee Address: US IL Glenview
- Agent George R. Corrigan
- Main IPC: B23K9/00
- IPC: B23K9/00 ; B23K9/10

Abstract:
A method and apparatus for providing welding type power is disclosed. A welding type power supply includes an input circuit, a controller and an output circuit. The input circuit receives an input power signal and provides an intermediate power signal. The output circuit receives the intermediate power signal and provides a welding type power output. The output circuit has an inverter with at least two inverter switches, and a clamp circuit that limits the voltage across the inverter. The clamp circuit captures and buffers the excess energy, and returns the excess energy to an input of the inverter over a plurality of switching cycles. The controller has control outputs connected to the input circuit and the output circuit, to control them.
Public/Granted literature
- US20140263240A1 Method and Apparatus For Providing Welding Power Public/Granted day:2014-09-18
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