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	A NEW SNUBBER FOR GTO-APPLICATIONS WITH ENERGY RECOVERY BY AN ACTIVE / PASSIVE CIRCUIT	[View]   [Download]
Author(s)	Hans Schamböck; Karl Schiftner
Abstract	A new snubber network configuration for chopper, 2 or 3 level PWM inverter application with GTO thyristors or power transistors permits snubber energy recovery. Two kinds of snubber energy recovery are possible: * Active recovery towards an auxiliary voltage source. Total energy recovery is possible. The principle of the circuit is easy, but the necessary equipment of the voltage source is very high. * Passive recovery by an energy-recovery transformer (replacing the DC/DC converter). A substantial part of snubber energy can be recovered. The remaining energy is dissipated within a resistor. For practical purposes, use of passive recovery is reliable and reasonable.
Download	Filename: Unnamed file Filesize: 583.4 KB
Type	Members Only
Date	Last modified 2021-02-12 by System