Author Archive | Samuel


Merry Christmas and happy new year! Check back mid 2023 for the neXt generation of HVPS: hvps-x! We are looking forward to provide a better power supply on this website in the next few months.

Bug correction for shvps firmware

Version 9.2 of the shvps firmware has been released. A bug that prevented using the open loop mode has been corrected. Open loop mode is used for automatic voltage calibration, so if you intend to use this functionality, please upgrade your shvps to firmware 9.2 You can get the new firmware on the Download page, […]

Electro-hydraulic actuator animates soft mini-robots

Here is a very nice application using a Peta-pico-Voltron HVPS to power electrostatic actuators: Electriflow, designed by Purnendu at University of Colorado Boulder, based on Christoph Keplinger’s HAZEL actuators. Link to article in Electronics Weekly: Electro-hydraulic actuator animates soft mini-robots by Steve Bush, 22.07.2021. Link to open-access conference proceeding. It’s always encouraging to see this […]

Bug correction in the shvps firmware

Ooops, took us a while to realise, but there was a bug in the shvps v9 firmware that can lock the unit in either DC or Off, with no possibility of generating switching or custom waveforms. This has been fixed in version 9.1 which is now included on the download page. It can be accessed […]

Software v9 released

Although a preliminary version has been available on the website for some time, we are now officially releasing the version 9 of the software for Peta-pico-Voltron. The documentation, is being updated on the website, but here is a summary of the exciting new features: Python interface The python interface integrates a lot of new features […]

New PCB version: v6b1

A new PCB version is available: version 6 batch 1 Check out the schematics, and assembly instructions. What is new in this version? There is no modifications on the functionalities of the board. However, the previous version of the PCB had a bill of material relying on different suppliers, and with parts that were not […]

Stand-alone configuration

The information in how to build a stand-alone High-voltage power supply is now available on the website. The stand-alone configuration combines a single-channel HVPS, a Raspberry Pi, a LCD touchscreen, and a battery. This enables to have a stand-alone unit that does not rely on an external computer and power source. This is for example […]

Journal article on Peta-pico-voltron

We have published the Peta-pico-Voltron project in Hardware X, which is a peer-reviewed open access journal from Elsevier. Schlatter S., Illenberger P. & Rosset S. (2018). Peta-pico-Voltron: An open-source high voltage power supply. HardwareX, 4, e00039. It presents a completely standalone version of Peta-pico-Voltron with a battery and touchscreen. The information on this configuration will […]

Touch screen version of HVPS

We are excited to present the recent development of the Peta-pico-voltron project! We have been working on a all new user interface programmed in Python for better portability across platform. The new interface can be run on a raspberry pi, and we have designed a completely self-contained unit that includes a touch screen, a single […]

Poster from the EAPAD conference

Here is the poster we presented at the 19th SPIE conference on electroactive polymer actuators and devices, Portland, OR, march 2017. It summarises the main characteristics of the HVPS HVPS_poster