Piezo Driver #108

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opened 2025-10-07 04:10:14 +00:00 by rahix · 1 comment

rahix commented

2025-10-07 04:10:14 +00:00

Owner

For various nano-positioning applications, we will need a flexible piezo driver board.

Preliminary Needs

Feedback control from capactive sensor or interferometric encoder
- Accounting for piezo hysteresis
Slider control (sawtooth profile)
Typical limit of actuation bandwidth is 100kHz (example actuator datasheet)
0-30V range at least
Can drive the highly capacitive load that a piezo presents
High resolution for most precise movements

References

Low-cost, open-source XYZ nanopositioner for high-precision analytical applications — Edwin Hwu
- Their driver runs piezos with 0 - 35V
- Commercial alternative runs -30 - 150V

For various nano-positioning applications, we will need a flexible piezo driver board. ### Preliminary Needs - Feedback control from capactive sensor or interferometric encoder - Accounting for piezo hysteresis - Slider control (sawtooth profile) - Typical limit of actuation bandwidth is 100kHz (example [actuator datasheet](https://content.kemet.com/datasheets/KEM_P0101_AE.pdf)) - 0-30V range at least - Can drive the highly capacitive load that a piezo presents - High resolution for most precise movements ### References - [Low-cost, open-source _XYZ_ nanopositioner for high-precision analytical applications](https://www.sciencedirect.com/science/article/pii/S2468067222000621) — Edwin Hwu * Their driver runs piezos with 0 - 35V * Commercial alternative runs -30 - 150V

forgejo-actions commented

2025-10-07 04:10:19 +00:00

Partial Techtree

flowchart BT

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    0:::eoi
    0["<a href='https://git.fa-fo.de/fafo/techtree/issues/108' target='_blank'>#108</a> | MISSING<br/><i>Development</i><br/><b>Piezo Driver</b>"]
    1:::dependant
    1["<a href='https://git.fa-fo.de/fafo/techtree/issues/88' target='_blank'>#88</a> | MISSING<br/><i>Development</i><br/><b>Piezo Slider Actuators</b>"]
    1 --> 0

Digest: 3fc8e92b96445e27ef6a28e98bcce4fee705acffeefa982559137811852c2e57; Last Updated: 2025-10-07 04:10:19

## Partial Techtree ```mermaid flowchart BT classDef eoi fill:#fff, stroke:#000, color:#000; classDef dependant fill:#fff, stroke:#888, color:#888; classDef dep_missing fill:#fcc, stroke:#800, color:#000; classDef dep_assigned fill:#ffa, stroke:#a50, color:#000; classDef dep_completed fill:#afa, stroke:#080, color:#000; 0:::eoi 0["<a href='https://git.fa-fo.de/fafo/techtree/issues/108' target='_blank'>#108</a> | MISSING Development Piezo Driver"] 1:::dependant 1["<a href='https://git.fa-fo.de/fafo/techtree/issues/88' target='_blank'>#88</a> | MISSING Development Piezo Slider Actuators"] 1 --> 0 ``` Digest: 3fc8e92b96445e27ef6a28e98bcce4fee705acffeefa982559137811852c2e57; Last Updated: 2025-10-07 04:10:19