A galvanically isolated dc-dc circuit converter, with data communication, corresponding system and corresponding method

Embodiment of the disclosure is related to the DC-DC circuit converter being galvanically isolated, corresponding system and the corresponding method with data communication.A kind of DC-DC converter includes the power oscillator for being connected to the first transformer winding, and transmits data flow by power signal modulation and pass through the channel being galvanically isolated.Rectifier rectification power signal is to generate D/C voltage.Comparator generates error signal from D/C voltage and reference voltage.Error signal is converted to digital power controlling value by analog-digital converter.Digital power controlling value and data flow multiplexing are obtained the bit stream of multiplexing by multiplexer.The amplitude modulation of power signal is executed in the second transformer winding by the transmitter for the bit stream driving being multiplexed.It is connected to the power signal of the receiver solution menstruation regulating amplitude modulation of the first winding.Demultiplexer demultiplexed data stream and digital power control value.Digital power controlling value is converted to the analog control signal for being used for power oscillator by digital analog converter.