Methods, apparatus, and systems to facilitate multi-channel isolation

An apparatus comprising:

• a multiplexer having a first multiplexer input, a second multiplexer input, a multiplexer select input, and a multiplexer output, the multiplexer configured to output a serial data signal at the multiplexer output based on a first data signal received at the first multiplexer input and based on a second data signal received at the second multiplexer input;
• a modulator;
• a capacitor coupled to the multiplexer output via the modulator;
• at least one demodulator;
• a first demultiplexer coupled to the capacitor via the at least one demodulator, the first demultiplexer configured to extract the first data signal from the serial data signal based on a control signal;
• and
• a second demultiplexer coupled to the capacitor via the at least one demodulator, the second demultiplexer configured to extract the second data signal from the serial data signal.

A system comprising:

• a high-voltage stage comprising a first high-voltage power switch having a first gate and a second high-voltage power switch having a second gate;
• a low-voltage stage comprising a controller configured to transmit a first data signal to the first first gate and to transmit a second data signal to the second gate;
• and
• an isolation package coupling the high-voltage stage and to the low-voltage stage, the isolation package comprising:
• a multiplexer having a multiplexer output, the multiplexer configured to output a serial data signal at the multiplexer output based on the first data signal and the second data signal;
• a capacitor coupled to the multiplexer output via a modulator;
• a first demultiplexer configured to extract the first data signal from the serial data signal based on a first clock signal;
• and
• a second demultiplexer configured to extract the second data signal from the serial data signal based on a second clock signal.