# # Set up EDB for Power Integrity Analysis # This example shows how to set up the electronics database (EDB) for power integrity analysis from a single # configuration file. # ## Import the required packages import json # + import os import tempfile from ansys.aedt.core import Hfss3dLayout from ansys.aedt.core.downloads import download_file from pyedb import Edb AEDT_VERSION = "2024.2" NG_MODE = False # - # Download the example PCB data. temp_folder = tempfile.TemporaryDirectory(suffix=".ansys") download_file(source="touchstone", name="GRM32_DC0V_25degC_series.s2p", destination=temp_folder.name) file_edb = download_file(source="edb/ANSYS-HSD_V1.aedb", destination=temp_folder.name) # ## Load example layout edbapp = Edb(file_edb, edbversion=AEDT_VERSION) # ## Create an empty dictionary to host all configurations cfg = dict() # ## Assign S-parameter model to capactitors. # Set S-parameter library path. cfg["general"] = {"s_parameter_library": os.path.join(temp_folder.name, "touchstone")} # Assign the S-parameter model. # # Keywords # # - **name**. Name of the S-parameter model in AEDT. # - **component**_definition. Known as component part number of part name. # - **file_path**. Touchstone file or full path to the touchstone file. # - **apply_to_all**. When set to True, assign the S-parameter model to all components share the same # component_definition. When set to False, Only components in "components" are assigned. # - **components**. when apply_to_all=False, components in the list are assigned an S-parameter model. # When apply_to_all=False, components in the list are NOT assigned. # - **reference_net**. Reference net of the S-parameter model. cfg["s_parameters"] = [ { "name": "GRM32_DC0V_25degC_series", "component_definition": "CAPC0603X33X15LL03T05", "file_path": "GRM32_DC0V_25degC_series.s2p", "apply_to_all": False, "components": ["C110", "C206"], "reference_net": "GND", } ] # ## Define ports # Create a circuit port between power and ground nets. # # Keywords # # - **name**. Name of the port. # - **reference_desinator**. # - **type**. Type of the port. Supported types are 'ciruict', 'coax'. # - **positive_terminal**. Positive terminal of the port. Supported types are 'net', 'pin', 'pin_group', 'coordinates'. # - **negative_terminal**. Positive terminal of the port. Supported types are 'net', 'pin', 'pin_group', 'coordinates'. cfg["ports"] = [ { "name": "port1", "reference_designator": "U1", "type": "circuit", "positive_terminal": {"net": "1V0"}, "negative_terminal": {"net": "GND"}, } ] # ## Define SIwave SYZ analysis setup # # Keywords # # - **name**. Name of the setup. # - **type**. Type of the analysis setup. Supported types are 'siwave_ac', 'siwave_dc', 'hfss'. # - **pi_slider_position**. PI slider position. Supported values are from '0', '1', '2'. 0:speed, 1:balanced, # 2:accuracy. # - **freq_sweep**. List of frequency sweeps. # - **name**. Name of the sweep. # - **type**. Type of the sweep. Supported types are 'interpolation', 'discrete', 'broadband'. # - **frequencies**. Frequency distribution. # - **distribution**. Supported distributions are 'linear_count', 'linear_scale', 'log_scale'. # - **start**. Start frequency. Example, 1e6, "1MHz". # - **stop**. Stop frequency. Example, 1e9, "1GHz". # - **increment**. cfg["setups"] = [ { "name": "siwave_syz", "type": "siwave_ac", "pi_slider_position": 1, "freq_sweep": [ { "name": "Sweep1", "type": "interpolation", "frequencies": [{"distribution": "log_scale", "start": 1e6, "stop": 1e9, "increment": 20}], } ], } ] # ## Define Cutout # # Keywords # # - **signal_list**. List of nets to be kept after cutout. # - **reference_list**. List of nets as reference planes. # - **extent_type**. Supported extend types are 'Conforming', 'ConvexHull', 'Bounding'. # For optional input arguments, refer to method pyedb.Edb.cutout() cfg["operations"] = { "cutout": { "signal_list": ["1V0"], "reference_list": ["GND"], "extent_type": "ConvexHull", } } # ## Write configuration into as json file file_json = os.path.join(temp_folder.name, "edb_configuration.json") with open(file_json, "w") as f: json.dump(cfg, f, indent=4, ensure_ascii=False) # ## Import configuration into example layout edbapp.configuration.load(config_file=file_json) # Apply configuration to EDB. edbapp.configuration.run() # Save and close EDB. edbapp.save() edbapp.close() # The configured EDB file is saved in a temp folder. print(temp_folder.name) # ## Load edb into HFSS 3D Layout. h3d = Hfss3dLayout(edbapp.edbpath, version=AEDT_VERSION, non_graphical=NG_MODE, new_desktop=True) # ## Analyze h3d.analyze() # ## Plot impedance solutions = h3d.post.get_solution_data(expressions="Z(port1,port1)") solutions.plot() # ## Shut Down Electronics Desktop h3d.close_desktop() # All project files are saved in the folder ``temp_file.dir``. If you've run this example as a Jupyter notbook you # can retrieve those project files.