Secondary inverter driving circuit for alternating current-direct current argon arc welding machine
A secondary inverter and drive circuit technology, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve problems such as large switching loss, reduce duty cycle, and blow up machines, reduce loss and noise, and achieve protection. , the effect of preventing straight-through
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0028] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0029] Dead zone time (DeadZone) is a protection period set in order to prevent the upper and lower tubes of the H bridge or half H bridge from being turned on at the same time due to the switching speed problem during PWM output, so at this time, the upper and lower tubes will not have output. The principle of the present invention is that the dead time is determined by the delay circuit, which can prevent the upper and lower bridge arms of the IGBT from being directly connected. At the same time, the present invention reduces the given current to the minimum through the reverse judging pull-down circuit at each commutation of AC and DC, realizes commutation with small current, and effectively reduces noise and loss during commutation.
[0030] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of the secondary invert...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com