Superpower compared to a Dry Cell Battery

How does Superpower compare to a supply that some consider the best DC source?

Dynamic performance of a 1.8A current step was compared between a Superpower and a 6V battery. The battery is a new carbon zinc dry cell type, one of those big ones that looks like a square brick with 2 springs on top and goes in a flashlight. We also tried four new AA size alkaline batteries in series with virtually the same result.

The measurement was made by supplying Vin to a Superpower device under test (DUT) from a power supply using a Superpower and from a battery. Vin from the power supply was 6.25V and from the battery was 6.5V (it was previously unused). The DUT was a SPJ78 at 5V out. If you didn't peek ahead, take a guess as to which has better current delivery.

Dynamic performance

Superpower, 1.8A pulse

Superpower 1.8A dynamic response
Superpower delivering 1.8A. The bottom trace shows Vout measured across a ½Ω load resistor. Top trace shows Vout to ground. The almost invisible shift at this scale is almost entirely due to contact resistance in the test socket.

Battery, 1.8A pulse

Battery 1.8A dynamic response
Battery trying to deliver 1.8A. Bottom trace shows Vout across a ½Ω resistor (1.8A/div). Top trace shows Vout to ground. Notice that Vout is limited by the battery as its internal resistance changes due to (most likely) internal heating. Superpower wins again!


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The Industry Standard SPX

Order now from our store.

  • 5V to 30V output
  • World's lowest output impedance
  • Superb ripple rejection (135dBV)
  • Instant step response
  • Extreme low noise
  • TO-220 footprint
  • No thermal pad needed!

High Voltage!

Tube lovers—SPHV is BACK!

  • Variable output 5V to 450V
  • Up to 500mA output current
  • Super low 0.5V drop-out at 100mA
  • Small TO-220 footprint!
  • Low output impedance
  • Fast response
  • Low noise

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SPHP—1000 Watts for your music server!

SPHP, a 10A Superpower with adjustable output voltage from 5V to 100V

  • Same low noise
  • Same blazing step response
  • Same great ripple rejection.
Just lots more current and much higher output voltage. For sale on our order page See more information in the data sheet here.

Build a power supply

A PCB and parts list for building a compact dual positive or positive+negative power supply are on this new page.

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