Patent ID: 9502985
Filing Date: 2016-11-22
CPC Classification: H02M,H04B,H04L,Y02B

Claim Text:
1. A switched mode power converter (SMPC) comprising: a primary side; a secondary side; an isolation transformer for power transfer from the primary side to the secondary side of the SMPC, the isolation transformer including: a primary-side power switch; a primary-side power switch controller configured to control the power transfer of the SMPC by controlling the switching of the primary-side power switch between an ON state and an OFF state, wherein during at least some switching cycles a time during which the primary-side power switch is in the OFF state includes a first portion during which current flows from the secondary-side winding to the secondary-side output and a second portion during which substantially zero current flows from the secondary-side winding to the secondary-side output, wherein the second portion of the time during which the primary-side power switch is in the OFF state includes an idle ring triggered by a transition from the first portion to the second portion; and a communication circuit for data communication between the primary side and the secondary side, wherein the communication circuit comprises: