{"id":4515,"date":"2026-01-27T18:45:58","date_gmt":"2026-01-27T10:45:58","guid":{"rendered":"https:\/\/medicaladaptertech.com\/medical-industry-news\/gan-vs-silicon-mosfet-high-density-medical-power-supplies\/"},"modified":"2026-04-24T10:31:33","modified_gmt":"2026-04-24T02:31:33","slug":"gan-vs-silicon-mosfet-high-density-medical-power-supplies","status":"publish","type":"post","link":"https:\/\/medicaladaptertech.com\/nl\/medical-industry-news\/gan-vs-silicon-mosfet-high-density-medical-power-supplies\/","title":{"rendered":"GaN FET vs. Silicon MOSFET in High-Density Medical Power Supplies"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1408\" height=\"768\" src=\"https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/7ea1128c963d495da340f844f8596eb4.jpg\" alt=\"GaN FET vs. Silicon MOSFET in High-Density Medical Power Supplies\" class=\"wp-image-4512\" srcset=\"https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/7ea1128c963d495da340f844f8596eb4.jpg 1408w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/7ea1128c963d495da340f844f8596eb4-300x164.jpg 300w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/7ea1128c963d495da340f844f8596eb4-1024x559.jpg 1024w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/7ea1128c963d495da340f844f8596eb4-768x419.jpg 768w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/7ea1128c963d495da340f844f8596eb4-18x10.jpg 18w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/7ea1128c963d495da340f844f8596eb4-800x436.jpg 800w\" sizes=\"(max-width: 1408px) 100vw, 1408px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You see medical devices getting smaller and lighter each year. It is important for patients and healthcare workers to have portable devices.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Small and light designs are now the top choice.<\/p><\/li>\n\n\n\n<li><p>Power supply parts often make devices heavy and big.<\/p><\/li>\n\n\n\n<li><p>Using smaller shapes and new materials helps lower size and weight.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Old silicon MOSFETs have trouble keeping up. <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.medicaldesignbriefs.com\/component\/content\/article\/53991-sic-power-delivery-for-big-iron-medical-devices\">High on-resistance wastes energy<\/a>, so you need more parts for higher currents. Big capacitors and hard circuits make things harder. GaN vs Silicon MOSFET is now a big question as you want better efficiency and cooler power supplies for new medical devices.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Belangrijkste conclusies<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>GaN FETs help make <a href=\"https:\/\/medicaladaptertech.com\/nl\/medical-industry-news\/iec-60601-certificeringseisen-voor-medische-voedingen\/\" target=\"_blank\">medical devices smaller and lighter<\/a>. They let devices switch faster, so transformers and inductors can be smaller.<\/p><\/li>\n\n\n\n<li><p>GaN technology uses less energy and makes less heat. This is good for power supplies without fans. These sealed supplies help keep things clean in hospitals.<\/p><\/li>\n\n\n\n<li><p>GaN FETs do not have reverse recovery charge. This means they work better and stay cooler than silicon MOSFETs.<\/p><\/li>\n\n\n\n<li><p>Using GaN can <a href=\"https:\/\/medicaladaptertech.com\/nl\/medical-industry-news\/aankoopgids-voor-medische-voedingen-versus-industriele-voedingen\/\" target=\"_blank\">lower the cost of the whole system<\/a>. It needs less cooling and lets you use smaller parts.<\/p><\/li>\n\n\n\n<li><p>GaN FETs work better and last longer in portable medical devices. This makes them a better choice than silicon MOSFETs.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">The Physics of Miniaturization: How GaN Shrinks Power Supplies<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/c999ce5e815a46e2a31c21fe2f5ce50f.webp\" alt=\"The Physics of Miniaturization: How GaN Shrinks Power Supplies\" class=\"wp-image-4513\" srcset=\"https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/c999ce5e815a46e2a31c21fe2f5ce50f.webp 1200w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/c999ce5e815a46e2a31c21fe2f5ce50f-300x169.webp 300w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/c999ce5e815a46e2a31c21fe2f5ce50f-1024x576.webp 1024w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/c999ce5e815a46e2a31c21fe2f5ce50f-768x432.webp 768w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/c999ce5e815a46e2a31c21fe2f5ce50f-18x10.webp 18w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/c999ce5e815a46e2a31c21fe2f5ce50f-800x450.webp 800w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><figcaption class=\"wp-element-caption\">Afbeeldingsbron: <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/pexels.com\">pexels<\/a><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">The Frequency-Size Relationship<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Understanding that Higher Switching Frequency (fsw) equals Smaller Magnetics (Transformers)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">You want <a href=\"https:\/\/medicaladaptertech.com\/nl\/\" target=\"_blank\" rel=\"noreferrer noopener\">medical devices to be small<\/a>. Power supplies must fit in tight spots. The size of transformers and inductors depends on switching frequency (fsw). If you make fsw higher, magnetic parts get smaller. This is because energy moves faster at higher frequency. You need less core material and fewer wire loops.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Tip:<\/strong> Doubling the switching frequency makes the transformer almost half as big.<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">Why GaN can switch at &gt;200kHz while Silicon struggles above 60-100kHz<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">There is a big difference in GaN vs Silicon MOSFET. DILITHINK GaN adapters switch above 200kHz. Silicon MOSFETs have trouble going past 60kHz. GaN devices can reach over 1MHz in some cases. This fast speed lets you use much smaller transformers and inductors.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>GaN devices work at <a href=\"https:\/\/jlcpcb.com\/blog\/gan-vs-silicon-power-devices\" target=\"_blank\" rel=\"nofollow\">frequencies over 1 MHz<\/a>.<\/p><\/li>\n\n\n\n<li><p>Silicon MOSFETs usually stay below 100kHz.<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/passive-components.eu\/gallium-nitride-vs-silicon-in-soft-switching-llc-power-supplies-comparative-study\/\" target=\"_blank\" rel=\"nofollow\">Higher switching frequency<\/a> means smaller magnetics and lower cost.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">You can shrink transformer volume by up to 50% with GaN. This helps you make high-density power supplies for portable medical gear.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reducing the Passive Footprint<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">How GaN enables the use of smaller Output Capacitors and Inductors<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">You want to save space on your PCB. GaN vs Silicon MOSFET is important here too. GaN lets you use higher switching frequencies. This means you can pick smaller output capacitors and inductors. GaN transistors have lower gate charge and smaller parasitic output capacitance. You waste less energy and make less heat.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Higher switching frequency allows smaller passive parts.<\/p><\/li>\n\n\n\n<li><p>Lower gate charge and output capacitance in GaN shrink capacitors and inductors.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">You can design lighter and thinner medical devices. You also spend less because you use fewer materials.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Case Study: Reducing PCB footprint by 40% in portable ultrasound chargers<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">GaN shows real results. In a DILITHINK project, engineers made a portable ultrasound charger. They swapped silicon MOSFETs for GaN FETs. The switching frequency went up to 250kHz. The team cut transformer size in half. They also used smaller capacitors and inductors. The final PCB footprint dropped by 40%. The charger got lighter and easier to carry.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Opmerking:<\/strong> <a href=\"https:\/\/medicaladaptertech.com\/nl\/\" target=\"_blank\" rel=\"noreferrer noopener\">Smaller power supplies<\/a> give more space for new features in your medical device.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Now you can choose GaN vs Silicon MOSFET for your next design. You get higher power density, smaller size, and better efficiency.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Critical Parameter Showdown: GaN vs. Si MOSFET<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Switching Losses and Efficiency<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">The &#8220;Magic&#8221; of Zero Reverse Recovery Charge (Qrr) in GaN FETs<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">You want your <a href=\"https:\/\/medicaladaptertech.com\/nl\/medical-power-supply-solutions-for-external-or-open-frame\/\" target=\"_blank\" rel=\"noreferrer noopener\">medische stroomvoorziening<\/a> to stay cool and work well. When you look at <strong>GaN vs Silicon MOSFET<\/strong>, you notice a big difference in switching. Silicon MOSFETs have a body diode. This diode makes reverse recovery charge (Qrr). Extra charge causes more heat when the device switches. The heat goes up quickly at high speeds. GaN FETs do not have a body diode. They have zero Qrr. This means almost no heat is wasted during switching. You can run your power supply faster without worrying about too much heat.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Tip:<\/strong> Zero Qrr in GaN FETs helps you make fanless power supplies for medical devices.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">GaN FETs lose less energy when switching than silicon MOSFETs. Fast switching and no body diode help GaN transistors save energy during on-off changes. You get better efficiency and less heat. This is great for high-density medical devices.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Comparing Gate Charge (Qg) and its impact on driving circuit complexity<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Gate charge (Qg) shows how much energy you need to turn the transistor on and off. Silicon MOSFETs have higher gate charge. You need stronger gate drivers and more energy to switch them. GaN FETs have lower gate charge. You can use simpler gate drivers and save space on your PCB. Lower Qg also means faster switching and less wasted energy.<\/p>\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\"><colgroup><col style=\"min-width: 25px;\" \/><col style=\"min-width: 25px;\" \/><col style=\"min-width: 25px;\" \/><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>Parameter<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>Silicon MOSFET<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>GaN FET<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Rds(on)<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoger<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Lager<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Qg<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoger<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Lager<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Qrr<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoog<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Zero<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Schakelsnelheid<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>&lt;100kHz<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>&gt;200kHz<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Thermal Output<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoog<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Laag<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n<p class=\"wp-block-paragraph\">You see that GaN FETs are better in every key parameter. You get faster switching, lower losses, and easier circuits.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>GaN technology gives higher efficiency than silicon solutions.<\/p><\/li>\n\n\n\n<li><p>It makes less heat, which is important for <a href=\"https:\/\/medicaladaptertech.com\/nl\/\" target=\"_blank\" rel=\"noreferrer noopener\">medische hulpmiddelen<\/a>.<\/p><\/li>\n\n\n\n<li><p>Small GaN power supplies fit better in high-density medical gear.<\/p><\/li>\n\n\n\n<li><p>GaN power supplies save more energy than old silicon designs.<\/p><\/li>\n\n\n\n<li><p>They work cooler, which is needed in medical devices.<\/p><\/li>\n\n\n\n<li><p>GaN technology helps devices last longer and work better.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Conduction Losses (Rds(on))<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Why GaN offers lower on-resistance per unit area than Silicon<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">You want your power supply to give strong current and not waste energy. Rds(on) tells you how much resistance the transistor has when it is on. Lower resistance means less energy lost as heat. GaN FETs have <a href=\"https:\/\/www.electronicspecifier.com\/products\/power\/gan-technology-is-transforming-medicine\/\" target=\"_blank\" rel=\"nofollow\">lower on-resistance<\/a> per unit area than silicon MOSFETs. You get more current with less heat. This lets you build smaller and cooler power supplies.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lower on-resistance in GaN FETs means less energy is lost. You make your power supply system work better. This matters for medical devices that need good and steady power. Higher efficiency means better performance and less energy use.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Implications for heavy-load efficiency in medical laser equipment<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Medical laser equipment needs lots of power and steady current. If you use silicon MOSFETs, you get more heat and lower efficiency. GaN FETs handle heavy loads with less resistance and less heat. Your equipment stays cooler and lasts longer. You can design small laser systems that work well without big cooling fans.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Opmerking:<\/strong> If you pick GaN vs Silicon MOSFET for heavy-load medical devices, you get better efficiency and longer life.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">You see that GaN FETs change how you design medical power supplies. You get smaller, cooler, and better systems. You can meet the needs of new medical technology with ease.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Thermal Management: Enabling the &#8220;Fanless&#8221; Medical Standard<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/f79e77a325f64e77829df2a09772f61a.webp\" alt=\"Thermal Management: Enabling the \" class=\"wp-image-4514\" srcset=\"https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/f79e77a325f64e77829df2a09772f61a.webp 1200w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/f79e77a325f64e77829df2a09772f61a-300x169.webp 300w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/f79e77a325f64e77829df2a09772f61a-1024x576.webp 1024w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/f79e77a325f64e77829df2a09772f61a-768x432.webp 768w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/f79e77a325f64e77829df2a09772f61a-18x10.webp 18w, https:\/\/medicaladaptertech.com\/wp-content\/uploads\/2026\/01\/f79e77a325f64e77829df2a09772f61a-800x450.webp 800w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><figcaption class=\"wp-element-caption\">Afbeeldingsbron: <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/pexels.com\">pexels<\/a><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">The Hygiene Factor<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Why hospitals prefer Fanless (Sealed) power supplies to prevent cross-contamination<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Hospitals want to keep rooms clean and safe. They pick <a target=\"_blank\" href=\"https:\/\/medicaladaptertech.com\/nl\/dilithink-news\/1u-rack-mount-power-supply-selection-guide-density-cooling\/\">fanless, sealed power supplies<\/a> to stop dust and germs from getting inside. This helps keep operating rooms and cleanrooms sterile. Sealed cases are easier to wipe and clean than vented ones. This lowers the chance of spreading germs between people.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Fanless power supplies block dirt and germs.<\/p><\/li>\n\n\n\n<li><p>Sealed cases help follow infection control rules.<\/p><\/li>\n\n\n\n<li><p>Devices with IEC 60601-1 power supplies <a href=\"https:\/\/reshinmonitors.com\/fanless-medical-display\/\" target=\"_blank\" rel=\"nofollow\">meet strict safety rules<\/a>.<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">How GaN&#8217;s high efficiency reduces waste heat, making plastic enclosures safe to touch<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Power supplies should stay cool, even in small sealed boxes. GaN technology is more efficient, so it makes less heat inside. You can use plastic cases that stay safe to touch, even after hours of use. This keeps patients and workers safe and comfortable.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Functie<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>GaN Power Supply<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Silicon Power Supply<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Heat Output<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Laag<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Hoog<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Enclosure Temperature<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Safe<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Can get hot<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Fan Needed<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nee<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Often Yes<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If a power supply is not efficient, it gets too hot. Too much heat can break parts and make devices less reliable. GaN helps avoid these problems and makes equipment last longer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reliability and Lifespan<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Lower operating temperatures correlate to longer electrolytic capacitor lifespan (Arrhenius Law)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">You want <a target=\"_blank\" href=\"https:\/\/medicaladaptertech.com\/nl\/medical-industry-news\/dental-chair-power-supply-safety-drive-waterproofing\/\">medical devices to last<\/a> many years. Cooler power supplies help you reach this goal. The Arrhenius equation says every 10\u00b0C drop in heat can double a capacitor\u2019s life. For example, a capacitor rated for 5,000 hours at 105\u00b0C could last 20,000 hours at 85\u00b0C. Cooler devices mean fewer repairs and less time when equipment is not working.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Tip: Lower heat helps important parts in your power supply last longer.<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">GaN&#8217;s inherent radiation hardness (relevant for X-Ray\/CT environments)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Some power supplies work in places with lots of radiation, like X-ray or CT rooms. GaN devices work well in these areas. GaN sensors help X-ray machines <a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.academia.edu\/94406749\/GaN_Heterostructures_as_Innovative_X_ray_Imaging_Sensors_Change_of_Paradigm\">see better<\/a> and give clearer pictures. They work at room temperature, so you do not need extra cooling. This makes GaN vs Silicon MOSFET a big choice for new medical imaging tools.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>GaN detectors make X-rays more sensitive.<\/p><\/li>\n\n\n\n<li><p>Devices can run without special cooling fans.<\/p><\/li>\n\n\n\n<li><p>Lower radiation helps keep people safe.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">GaN technology helps make medical devices safer, more reliable, and longer-lasting.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Commercial Reality: Cost vs. Performance Analysis<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">When to Stick with Silicon<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Legacy low-cost, low-power applications where size is not critical<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Sometimes, silicon MOSFETs are a good choice for simple medical devices. If your device does not need to be small or light, silicon works well. These parts cost less and are best when price is more important than size or speed. For example, you can use silicon in monitors that stay in one place or in basic infusion pumps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here is a table to help you compare:<\/p>\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>Functie<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>GaN FETs<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>Silicon MOSFETs<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Schakelfrequentie<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p><a href=\"https:\/\/jlcpcb.com\/blog\/gan-vs-silicon-power-devices\" target=\"_blank\" rel=\"nofollow noopener\">Higher (up to several MHz)<\/a><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Lower (&lt;100 kHz)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Conduction and Switching Losses<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Lager<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoger<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Thermal Management Needs<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Reduced<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>More significant<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Cost<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Higher upfront cost<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Lower upfront cost<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Voltage Handling<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Operates at higher voltages<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Limited to lower voltage applications<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Application Suitability<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Ideal for compact designs<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Suitable for <a href=\"https:\/\/medicaladaptertech.com\/nl\/medical-industry-news\/iso-13485-vs-iso-9001-medical-power-supply-sourcing-managers\/\" target=\"_blank\" rel=\"noopener\">cost-sensitive designs<\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Tip:<\/strong> If your device does not need to be small or run on batteries, silicon MOSFETs can help you save money.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">When to Switch to DILITHINK GaN<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">High-density, portable, or battery-operated medical devices<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Pick DILITHINK GaN if you need lots of power in a small space. GaN FETs help you make lighter and thinner devices. This is great for handheld ultrasound, wearable monitors, or battery-powered pumps. GaN is very efficient, so it makes less heat. You can use sealed cases without fans. This keeps your device clean and safe for hospitals.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Total System Cost reduction (savings on cooling and casing) offsetting higher component cost<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">GaN FETs cost more for each part, but you save money in other ways. You need smaller transformers, fewer capacitors, and less cooling. Look at this table to see the price difference:<\/p>\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>Product<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p><a href=\"https:\/\/www.electropages.com\/blog\/2015\/05\/gan-cost-barriers-tumble-as-power-transistors-break-silicons-pricespeed-advantage\" target=\"_blank\" rel=\"nofollow noopener\">Price at 1K Units<\/a><\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>Price at 10K Units<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>EPC2035<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>$0.36<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>$0.29<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>EPC2036<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>$0.38<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>$0.31<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Development Boards<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>$104.40<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>N.v.t.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n<p class=\"wp-block-paragraph\">When you add up the savings from smaller parts and no fans, the total cost can go down. You also get more room for new features in your device. GaN helps you meet tough medical rules and give better products to users.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You notice GaN FETs are changing medical power supply design. GaN is more than just a swap for silicon. With GaN, you can make devices in new shapes and sizes. This is because GaN works at higher switching speeds and stays cooler.<\/p>\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\"><colgroup> <col style=\"min-width: 25px;\" \/> <col style=\"min-width: 25px;\" \/> <col style=\"min-width: 25px;\" \/><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p><a href=\"https:\/\/passive-components.eu\/gallium-nitride-vs-silicon-in-soft-switching-llc-power-supplies-comparative-study\/\" target=\"_blank\" rel=\"nofollow noopener\">Functie<\/a><\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>GaN FETs<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>Silicon MOSFETs<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Rds(on)<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Lager<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoger<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Qg<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Lager<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoger<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Qrr<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Zero<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoog<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Schakelsnelheid<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>&gt;200kHz<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>&lt;100kHz<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Thermal Output<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Laag<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoog<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Some <a href=\"https:\/\/www.eeworldonline.com\/common-misconceptions-about-the-mosfet-body-diode\/\" target=\"_blank\" rel=\"nofollow\">engineers think GaN cannot work<\/a> in reverse. But you do not need extra diodes when using GaN.<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>You must plan for <a href=\"https:\/\/www.powersystemsdesign.com\/articles\/the-ascent-of-gan\/138\/21114\" target=\"_blank\" rel=\"nofollow\">small size<\/a> and heat control.<\/p><\/li>\n\n\n\n<li><p>GaN technology is getting better and easier to use.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">You end up with power supplies that are <a target=\"_blank\" href=\"https:\/\/medicaladaptertech.com\/nl\/dilithink-news\/mil-std-810-power-supply-environmental-stress-testing-reliability\/\">cooler, smaller, and faster<\/a>. Try DILITHINK to test GaN prototypes for your next medical device.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Veelgestelde vragen<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">What makes GaN FETs better for small medical power supplies?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">You can use GaN FETs at much higher switching frequencies than silicon. This lets you shrink transformers and inductors by up to 50%. Smaller parts mean lighter, more portable medical devices.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why does GaN technology help with fanless designs?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/medicaladaptertech.com\/nl\/medical-industry-news\/gan-medische-voeding-efficientie-betrouwbaarheid-voordelen\/\">GaN FETs waste less energy<\/a> as heat. Your power supply stays cool, so you do not need a fan. Fanless, sealed cases are easier to clean and help prevent germs in hospitals.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How does Qrr affect power supply efficiency?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Silicon MOSFETs have high Qrr because of their body diode. This creates extra heat during switching. GaN FETs have zero Qrr, so you get cooler and more efficient operation, even at high speeds.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can you compare GaN FETs and Silicon MOSFETs on key parameters?<\/h3>\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\"><colgroup><col style=\"min-width: 25px;\" \/><col style=\"min-width: 25px;\" \/><col style=\"min-width: 25px;\" \/><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>Parameter<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>Silicon MOSFET<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>GaN FET<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Rds(on)<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoger<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Lager<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Qg<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoger<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Lager<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Qrr<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoog<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Zero<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Schakelsnelheid<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>&lt;100kHz<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>&gt;200kHz<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Thermal Output<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Hoog<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Laag<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n<h3 class=\"wp-block-heading\">When should I choose GaN over silicon for my medical device?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pick GaN if you want a <a target=\"_blank\" href=\"https:\/\/medicaladaptertech.com\/nl\/medical-industry-news\/gan-medische-voeding-efficientie-betrouwbaarheid-voordelen\/\">compact, efficient, and cool-running<\/a> power supply. GaN works best for portable, battery-powered, or high-density medical equipment. You get more space and better hygiene with sealed, fanless designs.<\/p>","protected":false},"excerpt":{"rendered":"<p>GaN vs Silicon MOSFET: Which delivers higher efficiency, smaller size, and cooler operation for high-density medical power supplies?<\/p>","protected":false},"author":1,"featured_media":4512,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[159,157,160,158],"class_list":["post-4515","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-medical-industry-news","tag-energy-efficiency","tag-gan-vs-silicon","tag-mosfet-technology","tag-power-density"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>GaN vs Silicon: High-Density Medical Power Supplies<\/title>\n<meta name=\"description\" content=\"Compare GaN vs Silicon MOSFET for medical devices. Discover how Gallium Nitride technology enables high-density, ultra-efficient power supplies. Read our guide.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/medicaladaptertech.com\/nl\/medical-industry-news\/gan-vs-silicon-mosfet-high-density-medical-power-supplies\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GaN vs Silicon: High-Density Medical Power Supplies\" \/>\n<meta property=\"og:description\" content=\"Compare GaN vs Silicon MOSFET for medical devices. Discover how Gallium Nitride technology enables high-density, ultra-efficient power supplies. 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