Patent ID: 8963622
Filing Date: 2015-02-24
Classification: H01L,H02M,H04L

Abstract:
1. A method for generating regulated isolation supply voltage between different voltage domains, said method comprising the steps of: providing a primary integrated circuit coupled to a first voltage domain; providing a secondary integrated circuit coupled to a second voltage domain; providing a first insulating layer over at least a portion of a face of the primary integrated circuit; providing a plurality of high voltage rated isolation capacitors positioned over the first insulating layer, wherein each of the plurality of high voltage rated isolation capacitors comprises providing a waveform generator in the primary integrated circuit die, the waveform generator having outputs coupled to respective ones of the first electrically conductive layers; providing an alternating current (AC)-to-direct current (DC) converter in the secondary integrated circuit and having inputs coupled to respective ones of the second electrically conductive layers, whereby AC power is transferred from the waveform generator to the AC-to-DC converter; providing a voltage regulator coupled to an output of the AC-to-DC converter, the voltage regulator having a reference voltage feedback output; and providing a pulse width modulator having an input coupled to the voltage regulator reference voltage feedback output and an output coupled to another second electrically conductive layer, wherein the waveform generator has a control input coupled to a respective another first electrically conductive layer, whereby the pulse width modulator controls the output of the waveform generator.