What do I need to power a HASEL actuator from Artimus Robotics?

Updated: Jun 10

HASEL actuators operate using direct current (DC) high voltages (3,000 - 10,000 V). This is necessary to generate the large electric fields required for actuation. Since the performance of the actuators is very dependent on the driving electronics, using the high voltage power supply designed and manufactured by Artimus Robotics is highly recommended in order to ensure the proper functionality of the devices. This specialized power supply generates the appropriate voltage for actuation and utilizes high voltage switches to safely charge and discharge the actuators. Please contact info@artimusrobotics.com for more information regarding our high voltage power supplies.

If considering the use of different driving electronics, (such as third party power supplies) ensure that the high voltage power supply DC voltages output does not exceed 10,000 V. Additionally, procedures to ensure high voltage safety should be implemented following the guidelines supplied by the manufacturer of the high voltage amplifier. The amount of current that the actuators are allowed to draw will dictate their actuation speed, though the current can be limited to 1 milliamp for electrostatic discharge (ESD) safety with minimal effect on performance. As capacitive devices, the actuators have catch states, where they draw current when charged, but consume very little current (and therefore power) once they are charged to an applied voltage. However, care should be taken to ensure the actuators are properly discharged, otherwise they can hold a charge even if disconnected from the power supply, increasing the risk of accidental ESD to the user. Discharging the actuators can be achieved in a number of ways, but it is primarily done by setting the connected power supply to 0 V, using a resistor in parallel with the actuator that is rated for high voltage, or using a high voltage switch like a relay or optocoupler to connect the high voltage connection of the actuator to ground.

Please contact us at info@artimusrobotics.com with any questions related to the electronics required to drive the actuators.

About Artimus Robotics

Artimus Robotics designs and manufactures soft electric actuators. The technology was inspired by nature (muscles) and spun out of the University of Colorado. HASEL (Hydraulically Amplified Self-healing ELectrostatic) actuator technology operates when electrostatic forces are applied to a flexible polymer pouch and dielectric liquid to drive shape change in a soft structure. These principles can be applied to achieve a contracting motion, expanding motion, or other complex deformations. For more information, please visit Artimus Robotics or contact info@artimusrobotics.com.

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