Patent ID: 8854842

Claim:
A switching power converter for providing regulated power to an electronic device, the switching power converter comprising: a transformer including a primary winding coupled to an input and a secondary winding coupled to an output of the switching power converter; a secondary side controller on the secondary side of the switching power converter, the secondary side controller configured to cause a sequence of voltage pulses across the secondary winding of the switching power converter representing a digital message encoding one or more control parameters; a primary side switch coupled to the primary winding of the transformer, wherein the primary side switch allows current flow through the primary winding of the transformer when the primary side switch is turned on, and wherein the primary side switch prevents current flow through the primary winding of the transformer when the primary side switch is turned off; and a primary side controller on the primary side of the switching power converter, the primary side controller configured to detect the sequence of voltage pulses encoding the digital message, and to generate a primary side control signal to control switching of the primary side switch based on the one or more control parameters in the digital message.