empowering creative people

Hydra Smart Triple-Output DC Power Supply


$129.94 AUD, inc GST
$118.13 AUD, exc GST

More Views

Hydra Smart Triple-Output DC Power Supply
129.94 AUD


$129.94 AUD, inc GST
$118.13 AUD, exc GST

View our maker favourites for this product which are likely to be a great alternative.

0 units ship today
Contact us if you need this product urgently


  • $6.95 Standard (2-4 days, tracked)
  • $8.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.


The Hydra is a triple-output power converter from CH Robotics designed to make it easier to get the power you need for your next project. Simply connect a battery or AC/DC adapter to the Hydra and you will have access to three independent, software-configurable, DC output voltages to power your system.

With its palm-sized aluminum case, the Hydra provides all the flexibility of a bench-top supply and only uses a fraction of the desk space. Unlike many bench-top supplies, its compact size allows it to be easily portable. This flexibility makes it a great power solution, whether you are making a small mobile robot or an industrial system.

Hydra input voltage terminal (Vin) and configuration interface ports (serial pins and USB mini-B).
Hydra output terminals (V1, V2, and V3).

You can configure and control the Hydra from a computer through USB or microcontroller such as an Arduino via serial. The CH Robotics Smart Power Supply Control Software provides an easy-to-use interface to for controlling the Hydra from a computer, while the CH Robotics Serial Interface Software can be used to configure the Hydra at the register level and plot the data in real-time.

The Hydra can be powered by connecting an input voltage between 5 V and 14 V to the Vin terminal block. Each of the three outputs can supply up to about 12 W at voltages ranging from 2.5 V to 14.0 V (for example, they can supply a maximum of 2.5 A at 5 V). A 6′ USB A to mini-B cable is included for connecting the Hydra to a computer.

The Hydra does not come with a wall power adapter. If you want to power the Hydra with an AC-to-DC converter, Pololu recommend using Pololu's 12 V, 3 A wall power adapter. You can connect the adapter to the Hydra by cutting off its barrel plug and stripping the wires at the end of the cord, or you can use it with Pololu's DC barrel jack to 2-pin terminal block adapter and a separate pair of wires.

The Hydra is packed with features, including ESD and surge protection on all inputs and outputs, reverse polarity protection, over-current protection, automatic thermal shutdown, and user-adjustable output current limits. More information can be found in its datasheet (1MB pdf).

Hydra smart triple-output DC power supply with included components.


  • One input, three independent outputs
  • Control via USB or serial
  • Easy to use Smart Power Supply Control Software for use with Windows
  • Adjustable output current limits
  • Current control mode allows the Hydra to act as a current source (drives high power LEDs, etc.)
  • CNC-machined, anodized aluminum enclosure
  • Output short circuit protection
  • Thermal shutdown
  • ESD and surge protection on all inputs and outputs
  • Reverse polarity protection on voltage input


  • Accepts input voltages from 5 V to 14 V
  • Individually configurable output voltages from 2.5 V to 14 V
  • Output voltage resolution of 0.01 V
  • ~12 W available per output at any voltage level (e.g. the maximum continuous current per output is 2.5 A when the output voltage is 5 V)
  • Output voltage ripple less than 40 mV at 200 mA
  • Buck-boost topology allows the input to be above, below, or equal to the outputs
Documentation and Resources:

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!