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 do your data sheets not 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).

Ncore® is the trade name for the first significant step in power amplifier performance in a decade. Building on the stong heritage of UcD, Ncore takes the things UcD does well and does them ten times better. Literally. Following nearly two years of sporadic unofficial demonstrations Hypex is ready to announce this ground-breaking technology to the world. Of course, this being audio, people will not only want to know how well it performs, but how it works. Here’s the story.

Due to the ever blurring line between traditional Audio-Video devices and IT equipment, the IEC
(International Electrotechnical Commission) has moved away from the existing separate standards
for these product groups (IEC60950 for IT, IEC60065 for AV) and towards a single new, harmonised
safety standard to govern both.