A summary of the research data supporting "An LTspice Electrical Circuit Model of the HTS Dynamo." The dataset related to this publication ("EUCAS 2023 LTspice Dynamo Modelling Data 23-8-2023.xlsx") can be opened in Microsoft Excel and is available at https://doi.org/10.18742/24018519.Sheet 1: "Fig. 3"Figure 3 of the manuscript, including caption: "Fig. 3. The calculated charging current curves of the HTS coil in LTspice, compared with the results from the analytical equation (1), for three HTS dynamo frequencies of 4.25, 25 and 50 Hz, and an airgap of 3.7 mm."Sheets 2-4: "3.7 mm 4.25 Hz," "3.7 mm, 25 Hz," "3.7 mm, 50 Hz"Data used to produce Figure 3 of the manuscript (Sheet 1), for three HTS dynamo frequencies of 4.25, 25 and 50 Hz, respectively, and an airgap of 3.7 mm. Numerical data generated by LTspice; analytical data from reference [9] - see main manuscript.Sheet 5: "Fig. 4"Figures 4(a) and 4(b) of the manuscript, including caption: "Fig. 4. (a) Measured I-V curve of the load HTS coil in [12], (b) Calculated (open symbols) and fitted (dashed line) equivalent resistance for the coil, used as Rsc in the equivalent circuit (see Fig. 1) and LTspice model." The experimental data (columns A-D) are related to reference [12] for the HTS coil's critical current; columns E-F are the calculated resistance values from R = V/I; columns G-H are the fitted R(I) curves using equation (2) - see main manuscript.Sheet 6: "Fig. 5"Figure 5 of the manuscript, including caption: "Fig. 5. The calculated charging current curves of the HTS coil in LTspice, compared with the experimental results reported in [12], for three HTS dynamo frequencies of 48, 192 and 600 Hz."Sheets 7-9: "Expt 48 Hz," "Expt 192 Hz," "Expt 600 Hz"Data used to produce Figure 5 of the manuscript (Sheet 6), for three HTS dynamo frequencies of 48, 192 and 600 Hz, respectively. Numerical data generated by LTspice; experimental data from reference [12] - see main manuscript.