Application notes:

Hypex UcD modules are sold with the voltage gain pre-set at 20 times (26dB).
This is an arbitrary choice. Topologically the module is an instrumentation amplifier,
so gain can be changed by changing only a single resistor.

A concise explanation of why differential inputs like those on our amps are a much
better alternative than floating grounds (which does not solve any problems, really)

Answer to: “Dear Hypex, Why don’t your data sheets state IMD and DIM performance figures?”

 

White papers:

We've come a long way since believing it made sense to go straight from digital to the power
stage. Have an inside look at the best power DAC ever built and how complicated it got
before the penny dropped.

The original UcD publication.

The first description of the ripple cancellation trick that's quietly revolutionizing single phase
PWM in motor control.

A slightly ambitious slide show for a 2 hour presentation on everything audio.

A slide show presenting a good run-down of class D basics.

The definitive explanation why there's no such thing as a "digital amplifier", and why most
"digital" amplifiers are seriously fundamentally flawed.

One of the insights that got Ncore rolling. If you want to know what makes Hypex engineers
crack open a bottle of champagne, see (8).