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Design of a Stable DC Voltage Source and Computer Controlling of It Using an Indigenously Developed All-Digital Addressing-Cum-Control Hardware

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Abstract

We have developed a digitally operated addressing and control module (DACM) for addressing and controlling of equipment from a remote computer using a communication protocol developed in-house. This is useful for automation of an experiment that uses multiple equipment in a pre-decided synchronized manner. We also report design of a multipurpose high voltage direct current (DC) source that provides output of 0–100 V with an average stability of 1.90 (36) mV and has minimum step size of 3 mV. Operation of the DACM is examined by selecting the desired equipment, which in this case is the dc source, and remotely controlling its output from a computer. We also show that this can generate voltage with different waveforms within a 0–10 Hz frequency bandwidth. Such computer controlled ultra-stable high voltage sources tuneable to any arbitrary waveforms at low frequencies have many applications such as, driving a piezo for smooth scanning of laser frequencies, tuning length of a Fabry–Perot cavity, biasing of the electrodes in an ion trap and so on.

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Notes

  1. Throughout in this article quantities within {} defines a digital BUS.

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Acknowledgements

SD thanks Florian Schreck, U. Amsterdam, Netherlands for useful discussions.

Funding

This work was supported by CSIR-National Physical Laboratory, Department of Science and Technology (Grant No. SB/S2/LOP/033/2013) and Board of Researchin Nuclear Science (Grant No. 34/14/19/2014-BRNS/0309).

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Authors and Affiliations

  1. CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi, 110012, India

    A. Roy, N. Batra, S. Majhi, S. Panja & S. De

  2. Academy of Scientific and Innovative Research, CSIR Road, Taramani, Chennai, 600113, India

    A. Roy, N. Batra, S. Panja, A. Sen Gupta & S. De

  3. The Northcap University, Sector 23-A, Gurgaon, Haryana, India

    A. Sen Gupta

Authors
  1. A. Roy
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  2. N. Batra
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  3. S. Majhi
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  4. S. Panja
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  5. A. Sen Gupta
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  6. S. De
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Corresponding author

Correspondence to S. De.

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Roy, A., Batra, N., Majhi, S. et al. Design of a Stable DC Voltage Source and Computer Controlling of It Using an Indigenously Developed All-Digital Addressing-Cum-Control Hardware. MAPAN 33, 139–145 (2018). https://doi.org/10.1007/s12647-017-0241-5

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