Power converter and method of operation

摘要

A power converter includes a first phase leg including a first di/dt reactor and a first control section, the first di/dt reactor and the first control section being coupled between an active line and a neutral line. The power converter also includes a first current crowbar coupled between the active line and the neutral and a controller coupled to the first di/dt reactor, the control section and the first current crowbar and configured to activate the current crowbar based on a voltage across the first di/dt reactor.

主权项

1. A power converter comprising:
a first phase leg including a first change of current over time (di/dt) reactor coupled to a first control section, wherein the first di/dt reactor and the first control section couple an active line to a neutral line; a first current crowbar coupling the active line to the neutral line; and a controller coupled to the first di/dt reactor, the first control section and the first current crowbar, the controller configured to control the first control section and to activate the first current crowbar based on a measured voltage across the first di/dt reactor, wherein the controller includes a sigma-delta converter that creates a digital output based on the voltage.