Superpower, the ultimate voltage regulator

"The best solution is a well-designed power supply in the audio gear itself." Ed Simon's conclusion of a 5 part article on cleaning up AC power lines in AudioXpress, Aug - Dec 2008.

Superpower PC board

Now you can have the best solution! Today's 24 bit and higher circuits demand the best voltage regulation, and the Belleson Superpower gives it to you. The patented design fully isolates almost all circuitry from the input voltage, providing the best line regulation possible. The innovative design delivers current faster and cleaner than ever before available, with the lowest possible output impedance!

Bootstrap powered by its own clean, quiet output voltage, the Superpower has amazing load regulation, low noise and dynamic performance, delivering 2+ Amps of output current.

You may have heard of a "super regulator" designed by noted engineer, author and audiophile designer Walt Jung. Mr. Jung's design and several variations, while excellent, have been improved.

The Belleson Superpower regulator, like Mr. Jung's design, uses the regulator's cleaned and quieted output voltage as the "bootstrapped" power source for its own internal reference and error amplifier. In addition,

  • It is stable with the included 10µF output capacitance and remains stable with larger values.
  • Output voltage is set with a single resistor.
  • Superpower fits a 3 terminal regulator footprint and can bolt directly to a heat sink.
  • Start-up is guaranteed—the expected output voltage is the only stable state.
  • Gain/bandwidth of the internal amplifier is independent of output voltage.
  • Drop-out voltage is as low as 1V at currents to 2A for the SPJ version.
  • Superpower performs better without a pre-regulator.
  • There are no LEDs and no zener diodes.
Click the spectral graph to see more information on line regulation:I/O spectrum, 300mA loadClick the oscillogram to see more information on load regulation:
Dynamic response, 1A pulse

SPM is here!
lower current,
lower price

Now for sale on our order page—a new 225mA Superpower SPM that is very small and just as quiet and dynamic and awesome as our other regulators. And for almost 40% less money!

Barely bigger than a TO-220 package, the SPM fits into small spaces, it's great for clocks, reclockers, DACs and other applications where low current and high performance are important. See a press release here.

Lower noise!

Our new lower noise Superpower has been shipping since September 1 2013.
It doesn't look different, but internal improvements give it one-third the noise (less than 1PPM Vout) and more DC and AC accuracy. The data sheet has all the latest specifications. You can get the new and improved Superpower right now on our order page.

Pegasus Microphone uses Superpower


ronin appliedsciences use Superpower in the exceptional and beautiful Pegasus professional studio microphone. See more information here and here.

Transformer Calculator!

Use the Belleson Transformer Calculator to calculate the minimum Vrms voltage of a transformer for your Superpower based supplies.

It's Official

We're proud to announce the U.S. Patent and Trademark Office has granted patent 8,294,440 to the Superpower design.

Use the Superpower regulator in...

  • Headphone amps
  • DACs
  • Buffers
  • Clocks and reclockers
  • Preamps
  • Microphone preamps
  • Phono stages
  • Phono motors
  • Tube preamps and input stages
  • Line powered guitar effects boxes
  • Anywhere an extremely clean, quiet, dynamic power source is needed