Abstract
An inductive turn-on snubber with passive energy recovery for IGBTs used in single ended applications and asymmetrical half bridges is presented. Snubber inductive stored energy at switch turn-off is passively recovered into the load. In so doing, limited capacitive turn-off snubbering is inherently achieved, which reduces IGBT voltage during its tail current period. Turn-on snubber energy associated with freewheel diode reverse recovery at switch turn-on, is intrinsically recovered into the load. The times for snubber set and reset are fixed, being independent of the load current magnitude. Functionality of the snubber is supported by mathematical analysis, transient analysis simulations and practical results, based on a 450V, 33A, 10kHz, IGBT switching circuit. For GTO thyristors the snubber can be modified to give capacitive turn-off snubber action from zero volts.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
