{"id":380932,"date":"2024-08-28T18:01:19","date_gmt":"2024-08-28T18:01:19","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/lumirical-charge-convergence-issues\/"},"modified":"2024-08-28T18:03:14","modified_gmt":"2024-08-28T18:03:14","slug":"lumirical-charge-convergence-issues","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/lumirical-charge-convergence-issues\/","title":{"rendered":"Lumirical charge convergence issues"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/28-08-2024-1724868131-Screenshot (164).png\" alt=\"\" \/>&lt;p&gt;&lt;span style=&#8221;font-size: 8pt;&#8221;&gt;The charge model executes up to 2V then diverges. But about 3V bias is needed for operation. I have employed all of the methods mentioned in the website to ensure convergence such as finer mesh, initialization, gradient mixing, increasing iteration, update limiting, smaller voltage steps etc. But the simulation still produces convergence errors. So I would really appreciate it if anyone points out the things I should look for.&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span style=&#8221;font-size: 8pt;&#8221;&gt;Thank you&lt;\/span&gt;&lt;\/p&gt;&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-380932","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"The charge model executes up to 2V then diverges. But about 3V bias is needed for operation. I have employed all of the methods mentioned in the website to ensure convergence such as finer mesh, initialization, gradient mixing, increasing iteration, update limiting, smaller voltage steps etc. But the simulation still produces convergence errors.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/lumirical-charge-convergence-issues\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Lumirical charge convergence issues | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"The charge model executes up to 2V then diverges. But about 3V bias is needed for operation. I have employed all of the methods mentioned in the website to ensure convergence such as finer mesh, initialization, gradient mixing, increasing iteration, update limiting, smaller voltage steps etc. But the simulation still produces convergence errors.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/lumirical-charge-convergence-issues\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/28-08-2024-1724868131-Screenshot%20(164).png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/28-08-2024-1724868131-Screenshot%20(164).png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-08-28T18:01:19+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-08-28T18:03:14+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Lumirical charge convergence issues | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"The charge model executes up to 2V then diverges. But about 3V bias is needed for operation. I have employed all of the methods mentioned in the website to ensure convergence such as finer mesh, initialization, gradient mixing, increasing iteration, update limiting, smaller voltage steps etc. But the simulation still produces convergence errors.\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/28-08-2024-1724868131-Screenshot (164).png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/lumirical-charge-convergence-issues\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/lumirical-charge-convergence-issues\\\/#listItem\",\"name\":\"Lumirical charge convergence issues\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/lumirical-charge-convergence-issues\\\/#listItem\",\"position\":3,\"name\":\"Lumirical charge convergence issues\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/lumirical-charge-convergence-issues\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/lumirical-charge-convergence-issues\\\/\",\"name\":\"Lumirical charge convergence issues | Ansys Learning Forum\",\"description\":\"The charge model executes up to 2V then diverges. But about 3V bias is needed for operation. I have employed all of the methods mentioned in the website to ensure convergence such as finer mesh, initialization, gradient mixing, increasing iteration, update limiting, smaller voltage steps etc. But the simulation still produces convergence errors.\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/lumirical-charge-convergence-issues\\\/#breadcrumblist\"},\"datePublished\":\"2024-08-28T18:01:19+00:00\",\"dateModified\":\"2024-08-28T18:03:14+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Lumirical charge convergence issues | Ansys Learning Forum","description":"The charge model executes up to 2V then diverges. 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