DC-DC converter circuit and galvanically isolated DC-DC converter circuit

• Main Authors: RAGONESE, NUNZIO SPINA, GIUSEPPE PALMISANO, ALESSANDRO PARISI, NUNZIO GRECO
• Format: Patent
• Language: Chinese; English
• Published: 14.02.2020
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

Embodiments of the present disclosure relate to a DC-DC converter circuit and a galvanically isolated DC-DC converter circuit. The DC-DC converter includes a power oscillator connected to the first transformer winding and a channel for passing a data stream through galvanic isolation by power signal modulation. Rectifier generating DC voltage. The comparator generates an error signal from the DC voltage and a reference voltage. The analog-to-digital converter converts the error signal into a digital power control value. A multiplexer multiplexes the digital power control value with the data stream to obtain a multiplexed bitstream. A transmitter driven by the multiplexed bitstream performs amplitude modulation of the power signal. The receiver demodulates the amplitude modulated power signal. The demultiplexer demultiplexes the data stream and the digital power control value. The digital-to-analog converter converts the digital power control value into an analog control signal for thepower oscillator. Embodim