{"id":2112,"date":"2026-06-24T08:08:15","date_gmt":"2026-06-24T08:08:15","guid":{"rendered":"https:\/\/ovartech.com\/?p=2112"},"modified":"2026-06-24T08:09:23","modified_gmt":"2026-06-24T08:09:23","slug":"how-to-solve-efficiency-in-dc-dc-converters","status":"publish","type":"post","link":"https:\/\/ovartech.com\/ko\/how-to-solve-efficiency-in-dc-dc-converters\/","title":{"rendered":"How to Solve Efficiency, Thermal Management, and EMI Issues in DC-DC Converters?"},"content":{"rendered":"<h1 style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 18pt;\"><strong>How to Solve Efficiency, Thermal Management, and EMI Issues in DC-DC Converters?<\/strong><\/span><\/h1>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Efficiency, thermal management, and electromagnetic interference (EMI) are the three most critical challenges in DC-DC Converter design<\/strong>. Modern solutions typically achieve<strong> 94\u201396% efficiency<\/strong>, use advanced liquid or high-performance air cooling, and meet stringent CISPR 25 Class 3 or higher EMI standards through careful topology selection, filtering, and shielding. Proper engineering in these areas is essential for reliability, especially in commercial vehicles, industrial equipment, and marine applications.<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><a href=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT.jpg\"><img decoding=\"async\" class=\"lazyload aligncenter wp-image-2113 size-fusion-800\" src=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-800x537.jpg\" data-orig-src=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-800x537.jpg\" alt=\"DC-DC Converter\" width=\"800\" height=\"537\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27800%27%20height%3D%27537%27%20viewBox%3D%270%200%20800%20537%27%3E%3Crect%20width%3D%27800%27%20height%3D%27537%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-18x12.jpg 18w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-200x134.jpg 200w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-300x201.jpg 300w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-400x268.jpg 400w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-500x336.jpg 500w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-600x403.jpg 600w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-700x470.jpg 700w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-768x516.jpg 768w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-800x537.jpg 800w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT-1024x687.jpg 1024w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/yjtAT.jpg 1168w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><\/h2>\n<h2><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>1. Improving Efficiency<\/strong><\/span><\/h2>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\">DC-DC Converter efficiency is primarily determined by topology, component selection, and switching frequency.<\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Advanced Topologies<\/strong>: Traditional buck converters have been largely replaced by resonant topologies such as <strong>CLLC<\/strong> or<strong> Dual Active Bridge (DAB)<\/strong>, which significantly reduce switching losses. Ovar Tech\u2019s latest 2kW and 3kW DC-DC converters utilize CLLC resonant topology to achieve peak efficiency of <strong>95.5%<\/strong>.<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Wide Bandgap Semiconductors<\/strong>: Using Silicon Carbide (SiC) or Gallium Nitride (GaN) MOSFETs instead of traditional silicon devices allows higher switching frequencies (up to 500kHz) while maintaining low conduction losses.<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Optimized Magnetic Design<\/strong>: Low-loss ferrite cores and litz wire windings minimize core and copper losses.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\">In real-world operation, every 1% efficiency improvement can save substantial energy over the vehicle\u2019s lifetime, particularly in high-duty-cycle commercial applications.<\/span><\/p>\n<h3><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>2. Thermal Management Solutions<\/strong><\/span><\/h3>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\">Effective heat dissipation is crucial because even 5% power loss in a 3kW converter generates 150W of heat that must be managed.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Common Solutions Include:<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Liquid Cooling<\/strong>: Preferred for high-power and harsh environments. Ovar Tech\u2019s integrated modules often use liquid cooling channels integrated into the baseplate, maintaining junction temperatures below 105\u00b0C even at full load in 50\u00b0C ambient conditions.<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Advanced Air Cooling<\/strong>: Optimized heatsink designs with high-density pin-fin or wavy-fin structures, combined with intelligent variable-speed fans.<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Thermal Interface Materials (TIM)<\/strong>: High-conductivity gap fillers and phase-change materials reduce thermal resistance between components and the housing.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\">Proper thermal design not only extends component lifespan but also prevents derating, ensuring full power output across a wide temperature range (-40\u00b0C to +85\u00b0C).<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><a href=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW.jpg\"><img decoding=\"async\" class=\"lazyload aligncenter wp-image-2117 size-fusion-800\" src=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-800x537.jpg\" data-orig-src=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-800x537.jpg\" alt=\"\" width=\"800\" height=\"537\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27800%27%20height%3D%27537%27%20viewBox%3D%270%200%20800%20537%27%3E%3Crect%20width%3D%27800%27%20height%3D%27537%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-18x12.jpg 18w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-200x134.jpg 200w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-300x201.jpg 300w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-400x268.jpg 400w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-500x336.jpg 500w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-600x403.jpg 600w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-700x470.jpg 700w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-768x516.jpg 768w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-800x537.jpg 800w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW-1024x687.jpg 1024w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/NFrCW.jpg 1168w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>3. Electromagnetic Interference (EMI) Mitigation<\/strong><\/span><\/h4>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\">DC-DC converters are major sources of conducted and radiated EMI due to high-speed switching.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Effective EMI Control Strategies:<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Input and Output Filtering:<\/strong> Multi-stage LC filters and common-mode chokes suppress conducted emissions.<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Shielding:<\/strong> Full metal enclosures and strategic grounding reduce radiated EMI.<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>Soft Switching Techniques<\/strong>: Resonant topologies like those used in Ovar Tech products naturally reduce dv\/dt and di\/dt, lowering EMI generation at the source.<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\"><strong>PCB Layout Optimization:<\/strong> Careful separation of power and control traces, ground planes, and component placement.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\">Ovar Tech\u2019s commercial and marine-grade DC-DC converters are designed to meet<strong> CISPR 25 Class 3<\/strong> standards, making them suitable for vehicles with sensitive communication and navigation systems.<\/span><\/p>\n<h4><span style=\"font-size: 14pt;\"><strong><span style=\"font-family: arial, helvetica, sans-serif;\">Ovar Tech\u2019s Approach to These Challenges<\/span><\/strong><\/span><\/h4>\n<p><span style=\"font-size: 14pt; font-family: arial, helvetica, sans-serif;\">As a specialized manufacturer with over 15 years of experience, Ovar Tech integrates advanced solutions across its product line. Their <strong>1.5kW\u20133kW DC-DC converters<\/strong> and integrated OBC + DC-DC modules combine high-efficiency resonant topologies, robust thermal designs, and comprehensive EMI suppression, making them popular choices for commercial vehicle fleets and marine applications.<\/span><\/p>\n<h5><strong><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\">Summary of Solutions<\/span><\/strong><\/h5>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><a href=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h.jpg\"><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-2121\" src=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h.jpg\" data-orig-src=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h.jpg\" alt=\"\" width=\"1840\" height=\"446\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271840%27%20height%3D%27446%27%20viewBox%3D%270%200%201840%20446%27%3E%3Crect%20width%3D%271840%27%20height%3D%27446%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-18x4.jpg 18w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-200x48.jpg 200w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-300x73.jpg 300w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-400x97.jpg 400w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-500x121.jpg 500w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-600x145.jpg 600w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-700x170.jpg 700w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-768x186.jpg 768w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-800x194.jpg 800w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-1024x248.jpg 1024w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-1200x291.jpg 1200w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h-1536x372.jpg 1536w, https:\/\/ovartech.com\/wp-content\/uploads\/2026\/06\/9sf7h.jpg 1840w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 1840px) 100vw, 1840px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5><span style=\"font-size: 14pt; font-family: arial, helvetica, sans-serif;\"><strong>Conclusion<\/strong><\/span><\/h5>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\">Solving efficiency, thermal, and EMI issues in DC-DC Converters requires a holistic engineering approach \u2014 from topology selection and component choice to advanced cooling and careful layout. Integrated solutions from manufacturers like Ovar Tech demonstrate how these challenges can be effectively addressed while delivering compact, reliable, and cost-effective performance for demanding applications in commercial vehicles, industrial machinery, and yachts.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt;\">For engineers and fleet operators, prioritizing suppliers that excel in all three areas is key to achieving long-term reliability and lowest total cost of ownership in electrified platforms.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>How to Solve Efficiency, Thermal Management, and EMI Issues in  [&#8230;]<\/p>","protected":false},"author":2,"featured_media":2123,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[17,126],"tags":[203],"class_list":["post-2112","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-tips-tricks","tag-dc-dc-converter"],"acf":[],"_links":{"self":[{"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/posts\/2112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/comments?post=2112"}],"version-history":[{"count":9,"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/posts\/2112\/revisions"}],"predecessor-version":[{"id":2125,"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/posts\/2112\/revisions\/2125"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/media\/2123"}],"wp:attachment":[{"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/media?parent=2112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/categories?post=2112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ovartech.com\/ko\/wp-json\/wp\/v2\/tags?post=2112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}