Patent ID: 8223508

Claim:
A power supply comprising: primary-side circuitry having control circuitry and a primary, said control circuitry controlling operation of the power supply; secondary-side circuitry having a secondary and measurement circuitry, wherein said primary and said secondary are inductively coupled to provide isolation protection; isolation circuitry coupling the primary-side circuitry and the secondary-side circuitry, said isolation circuitry providing communication between said measurement circuitry and said control circuitry, said control circuitry configured to adjust operation of the power supply in response to communications from said measurement circuitry; wherein said secondary-side circuitry includes switching circuitry; wherein said measurement circuitry includes a voltage sensor, said measurement circuitry communicating a measured voltage to said control circuitry through said isolation circuitry, said control circuitry configured to vary a duty cycle of said drive waveform for said secondary-side switching circuitry as a function of said measured voltage; and wherein said secondary-side current includes a switch driver electrically connected to said secondary-side switching circuitry, said control circuitry coupled to said switch driver through said isolation circuitry, whereby said control circuitry applies said drive waveforms for said secondary-side switching circuitry to said secondary-side switch driver.