{"id":15569,"date":"2023-08-24T11:59:15","date_gmt":"2023-08-24T11:59:15","guid":{"rendered":"https:\/\/imperix.com\/doc\/?p=15569"},"modified":"2025-05-27T12:36:15","modified_gmt":"2025-05-27T12:36:15","slug":"tpi-cb-pwm-helper-block","status":"publish","type":"post","link":"https:\/\/imperix.com\/doc\/software\/tpi-cb-pwm-helper-block","title":{"rendered":"TPI CB-PWM &#8211; Helper block"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-right-text counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/imperix.com\/doc\/software\/tpi-cb-pwm-helper-block\/#Simulink-CB-PWM-helper-block\" >Simulink CB PWM helper block<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/imperix.com\/doc\/software\/tpi-cb-pwm-helper-block\/#Signal-specification\" >Signal specification<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/imperix.com\/doc\/software\/tpi-cb-pwm-helper-block\/#Parameters\" >Parameters<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/imperix.com\/doc\/software\/tpi-cb-pwm-helper-block\/#PLECS-CB-PWM-helper-block\" >PLECS CB PWM helper block<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/imperix.com\/doc\/software\/tpi-cb-pwm-helper-block\/#Signal-specification-2\" >Signal specification<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/imperix.com\/doc\/software\/tpi-cb-pwm-helper-block\/#Parameters-2\" >Parameters<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/imperix.com\/doc\/software\/tpi-cb-pwm-helper-block\/#C-functions\" >C++ functions<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>The TPI CB-PWM helper block is a wrapper that simplifies the use of the <a href=\"https:\/\/imperix.com\/doc\/software\/carrier-based-pwm\">CB-PWM block<\/a> with the <a href=\"https:\/\/imperix.com\/products\/power\/programmable-inverter\/\">all-in-one programmable inverter<\/a> (TPI8032 22kW). Since the topology of the converter is fixed, the channel assignment and part of the modulators&#8217; configuration are known beforehand.<\/p>\n\n\n\n<p>The topology of the converter and the connection of the PWM channels are shown below. To prevent short-circuiting the DC bus, the upper and lower switches of a leg always use pseudo-complementary signals with a fixed dead-time of 124 ns. This value was chosen as low as possible to minimize the distortion introduced by the dead-time.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"539\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2023\/08\/topology-tpi8032.png\" alt=\"Topology of the TPI8032\" class=\"wp-image-15781\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2023\/08\/topology-tpi8032.png 1200w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2023\/08\/topology-tpi8032-300x135.png 300w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2023\/08\/topology-tpi8032-1024x460.png 1024w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2023\/08\/topology-tpi8032-768x345.png 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption>Topology of the TPI8032<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>PWM channel<\/strong><\/td><td><strong>PWM lane<\/strong><\/td><td><strong>Description<\/strong><\/td><\/tr><tr><td>0<\/td><td>0<\/td><td>PWM High &#8211; Phase A (M0)<\/td><\/tr><tr><td><\/td><td>1<\/td><td>PWM Low &#8211; Phase A (M0)<\/td><\/tr><tr><td>1<\/td><td>2<\/td><td>PWM High &#8211; Phase B (M1)<\/td><\/tr><tr><td><\/td><td>3<\/td><td>PWM Low &#8211; Phase B (M1)<\/td><\/tr><tr><td>2<\/td><td>4<\/td><td>PWM High &#8211; Phase C (M2)<\/td><\/tr><tr><td><\/td><td>5<\/td><td>PWM Low &#8211; Phase C (M2)<\/td><\/tr><\/tbody><\/table><figcaption>PWM channels and lanes assignment<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-simple-alerts-for-gutenberg-alert-boxes sab-alert sab-alert-info\" role=\"alert\">The TPI CB-PWM helper block is available starting from <a href=\"https:\/\/imperix.com\/downloads\/\">version 2024.2<\/a> of the SDK. The TPI8032 is <strong>required<\/strong> to use this driver.<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-simulink-cb-pwm-helper-block\"><span class=\"ez-toc-section\" id=\"Simulink-CB-PWM-helper-block\"><\/span>Simulink CB PWM helper block<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-signal-specification\"><span class=\"ez-toc-section\" id=\"Signal-specification\"><\/span>Signal specification<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<ul class=\"wp-block-list\"><li>The input signal\u00a0<code><strong>D<\/strong><\/code>\u00a0is a vector of three duty-cycles (0.0 to 1.0), corresponding to phases A, B, and C.<\/li><li>The input signal\u00a0<code><strong>><\/strong><\/code>\u00a0is the clock input and must be connected to the <a href=\"https:\/\/imperix.com\/doc\/software\/config-control-task-configuration\">CONFIG block<\/a> or to an independent <a href=\"https:\/\/imperix.com\/doc\/software\/clock-generators\">CLK<\/a>.<\/li><li>The input\u00a0<code><strong>A<\/strong><\/code>\u00a0allows the activation (>0) or deactivation (&lt;=0) of the PWM outputs.<\/li><li>The <strong><code>sim<\/code> <\/strong>output is a vector corresponding to the six generated PWM signals (phase A high and low, phase B high and low, and phase C high and low). They are only used in simulation.<\/li><\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"102\" height=\"62\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2023\/08\/simulink-tpi-cb-pwm-block-1.png\" alt=\"CB PWM helper block for Simulink\" class=\"wp-image-15681\"\/><\/figure><\/div>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-parameters\"><span class=\"ez-toc-section\" id=\"Parameters\"><\/span>Parameters<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Device ID<\/strong> selects which TPI to address when used in a multi-device configuration.<\/li><li><strong>Carrier shape<\/strong> selects the type of carrier (TRIANGLE, SAWTOOTH, INVTRIANGLE, or INVSAWTOOTH).<\/li><li><strong>Phases(s)<\/strong> configures the carrier phase-shift of phases A, B and C relative to the CLK. It can be a scalar (same shift for A, B and C) or a 3-dimentionnal vector.<\/li><li><strong>Show &#8220;activate&#8221; input<\/strong> makes the\u00a0A\u00a0input visible. If not checked, the TPI CB-PWM block is active by default.<\/li><li><strong>PWM parameters update rate<\/strong>\u00a0selects when the duty-cycle parameter is applied.<ul><li><em>Single-rate<\/em>: it is applied at the end of the carrier period.<\/li><li><em>Double-rate<\/em>: it is applied twice per carrier period: when the carrier reaches its lowest point and when it reaches its highest point. (for TRIANGLE and INVTRIANGLE carriers only)<\/li><\/ul><\/li><li><strong>Simulation output type<\/strong><ul><li><em>PWM signals<\/em>: outputs are logic gate signals 0 or 1.<\/li><li><em>Duty-cycle<\/em>: outputs are duty-cycles between 0 and 1. This option is only used with averaged power switch models.<\/li><\/ul><\/li><li><strong>Simulate dead-time<\/strong> toggles the option to simulate the effect of the dead-time.<\/li><\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"424\" height=\"525\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-33.png\" alt=\"\" class=\"wp-image-30733\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-33.png 424w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-33-242x300.png 242w\" sizes=\"auto, (max-width: 424px) 100vw, 424px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"424\" height=\"525\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-35.png\" alt=\"\" class=\"wp-image-30735\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-35.png 424w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-35-242x300.png 242w\" sizes=\"auto, (max-width: 424px) 100vw, 424px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-plecs-cb-pwm-helper-block\"><span class=\"ez-toc-section\" id=\"PLECS-CB-PWM-helper-block\"><\/span>PLECS CB PWM helper block<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-signal-specification-1\"><span class=\"ez-toc-section\" id=\"Signal-specification-2\"><\/span>Signal specification<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<ul class=\"wp-block-list\"><li>The input signal\u00a0<code><strong>D<\/strong><\/code>\u00a0is a vector of three duty-cycles (0.0 to 1.0), corresponding to phases A, B, and C.<\/li><li>The input signal\u00a0<code><strong>><\/strong><\/code>\u00a0is the clock input and must be connected to the <a href=\"https:\/\/imperix.com\/doc\/software\/config-control-task-configuration\">CONFIG block<\/a> or to an independent <a href=\"https:\/\/imperix.com\/doc\/software\/clock-generators\">CLK<\/a>.<\/li><li>The input\u00a0<code><strong>A<\/strong><\/code>\u00a0allows the activation (>0) or deactivation (&lt;=0) of the PWM outputs.<\/li><li>The target output port (only visible at the atomic subsystem level) is a vector corresponding to the six generated PWM signals (phase A high and low, phase B high and low, and phase C high and low). They are only used in simulation.<\/li><\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"88\" height=\"85\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2023\/08\/plecs-tpi-cb-pwm-block-blank.png\" alt=\"CB PWM helper block for PLECS\" class=\"wp-image-15828\"\/><\/figure><\/div>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-parameters-1\"><span class=\"ez-toc-section\" id=\"Parameters-2\"><\/span>Parameters<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Device ID<\/strong> selects which TPI to address when used in a multi-device configuration.<\/li><li><strong>Carrier shape<\/strong> selects the type of carrier (TRIANGLE, SAWTOOTH, INVTRIANGLE, or INVSAWTOOTH).<\/li><li><strong>Show &#8220;activate&#8221; input<\/strong> makes the\u00a0A\u00a0input visible. If not checked, the TPI CB-PWM block is active by default.<\/li><li><strong>PWM parameters update rate<\/strong>\u00a0selects when the duty-cycle parameter is applied.<ul><li><em>Single-rate<\/em>: it is applied at the end of the carrier period.<\/li><li><em>Double-rate<\/em>: it is applied twice per carrier period: when the carrier reaches its lowest point and when it reaches its highest point. (for TRIANGLE and INVTRIANGLE carriers only)<\/li><\/ul><\/li><li><strong>Phase-shift(s)<\/strong> configures the carrier phase-shift of phases A, B and C relative to the CLK. It can be a scalar (same shift for A, B and C) or a 3-dimentionnal vector.<\/li><li><strong>Simulation output type<\/strong><ul><li><em>PWM signals<\/em>: outputs are logic gate signals 0 or 1.<\/li><li><em>Duty-cycle<\/em>: outputs are duty-cycles between 0 and 1. This option is only used with averaged power switch models.<\/li><\/ul><\/li><li><strong>Simulate dead-time<\/strong> toggles the option to simulate the effect of the dead-time.<\/li><\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"431\" height=\"447\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-36.png\" alt=\"\" class=\"wp-image-30736\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-36.png 431w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-36-289x300.png 289w\" sizes=\"auto, (max-width: 431px) 100vw, 431px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"431\" height=\"447\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-38.png\" alt=\"\" class=\"wp-image-30738\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-38.png 431w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-38-289x300.png 289w\" sizes=\"auto, (max-width: 431px) 100vw, 431px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"431\" height=\"447\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-37.png\" alt=\"\" class=\"wp-image-30737\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-37.png 431w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/08\/image-37-289x300.png 289w\" sizes=\"auto, (max-width: 431px) 100vw, 431px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-c-functions\"><span class=\"ez-toc-section\" id=\"C-functions\"><\/span>C++ functions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>There are no C++ helper functions for the TPI. Please refer to the <a href=\"https:\/\/imperix.com\/doc\/software\/carrier-based-pwm\">generic CB-PWM functions<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The TPI CB-PWM helper block is a wrapper that simplifies the use of the CB-PWM block with the all-in-one programmable inverter (TPI8032 22kW). Since the&#8230;<\/p>\n","protected":false},"author":8,"featured_media":33315,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[16],"tags":[],"software-environments":[103,104],"provided-results":[],"related-products":[50,51,110],"guidedreadings":[],"tutorials":[],"user-manuals":[],"coauthors":[62],"class_list":["post-15569","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software","software-environments-matlab","software-environments-plecs","related-products-acg-sdk","related-products-cpp-sdk","related-products-tpi"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>TPI CB-PWM - Helper block - Simulink, PLECS and C++ documentation<\/title>\n<meta name=\"description\" content=\"The TPI CB-PWM helper block is a wrapper that simplifies the use of the CB-PWM block with the all-in-one programmable inverter (TPI8032).\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/imperix.com\/doc\/software\/tpi-cb-pwm-helper-block\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TPI CB-PWM - Helper block - Simulink, PLECS and C++ documentation\" \/>\n<meta property=\"og:description\" content=\"The TPI CB-PWM helper block is a wrapper that simplifies the use of the CB-PWM block with the all-in-one programmable inverter (TPI8032).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/imperix.com\/doc\/software\/tpi-cb-pwm-helper-block\" \/>\n<meta property=\"og:site_name\" content=\"imperix\" \/>\n<meta property=\"article:published_time\" content=\"2023-08-24T11:59:15+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-27T12:36:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2025\/05\/software.png\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"334\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Simon Strobl\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Simon Strobl\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/imperix.com\\\/doc\\\/software\\\/tpi-cb-pwm-helper-block#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/imperix.com\\\/doc\\\/software\\\/tpi-cb-pwm-helper-block\"},\"author\":{\"name\":\"Simon Strobl\",\"@id\":\"https:\\\/\\\/imperix.com\\\/doc\\\/#\\\/schema\\\/person\\\/112ed48191405cbe3befbc660d112803\"},\"headline\":\"TPI CB-PWM &#8211; 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