{"id":2348,"date":"2026-02-21T09:13:47","date_gmt":"2026-02-21T09:13:47","guid":{"rendered":"https:\/\/www.qinx-power.com\/?post_type=news&#038;p=2348"},"modified":"2026-02-21T09:13:47","modified_gmt":"2026-02-21T09:13:47","slug":"switching-power-supplies-revolutionized-modern-electronics","status":"publish","type":"news","link":"https:\/\/www.qinxpower.com\/ja\/news\/\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u96fb\u6e90\u306f\u73fe\u4ee3\u306e\u96fb\u5b50\u6a5f\u5668\u306b\u9769\u547d\u3092\u3082\u305f\/","title":{"rendered":"\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u96fb\u6e90\u304c\u73fe\u4ee3\u306e\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u306b\u3082\u305f\u3089\u3057\u305f\u9769\u547d\uff1a\u539f\u7406\u3068\u5fdc\u7528"},"content":{"rendered":"<h1><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-2349 size-large\" src=\"https:\/\/www.qinx-power.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-1024x800.jpg\" alt=\"\" width=\"800\" height=\"625\" srcset=\"https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-1024x800.jpg 1024w, https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-300x234.jpg 300w, https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-768x600.jpg 768w, https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-1536x1200.jpg 1536w, https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-2048x1600.jpg 2048w, https:\/\/www.qinxpower.com\/wp-content\/uploads\/How-Switching-Power-Supplies-Revolutionized-Modern-Electronics-15x12.jpg 15w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/h1>\n<h1>\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u96fb\u6e90\u304c\u73fe\u4ee3\u306e\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u306b\u3082\u305f\u3089\u3057\u305f\u9769\u547d\uff1a\u539f\u7406\u3068\u5fdc\u7528<\/h1>\n<h2>\u30a8\u30b0\u30bc\u30af\u30c6\u30a3\u30d6\u30b5\u30de\u30ea\u30fc<\/h2>\n<p>\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u96fb\u6e90\uff08SMPS\uff09\u306f\u3001\u73fe\u4ee3\u306e\u96fb\u5b50\u6a5f\u5668\u306b\u304a\u3051\u308b\u4e3b\u8981\u306a\u96fb\u529b\u5909\u63db\u6280\u8853\u3067\u3042\u308a\u3001\u5f93\u6765\u306e\u76f4\u7dda\u578b\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u306e30\uff5e50%\u306b\u5bfe\u3057\u300170\uff5e95%\u306e\u52b9\u7387\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\u3067\u306f\u3001SMPS\u306e\u52d5\u4f5c\u539f\u7406\u3001\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3001\u304a\u3088\u3073\u69d8\u3005\u306a\u7523\u696d\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u5fdc\u7528\u4f8b\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002.<\/p>\n<h2>\u57fa\u672c\u52d5\u4f5c\u539f\u7406\uff1a\u7cbe\u5bc6\u5236\u5fa1\u306b\u3088\u308b\u30a8\u30cd\u30eb\u30ae\u30fc\u4f1d\u9054<\/h2>\n<p>\u904e\u5270\u306a\u96fb\u5727\u3092\u71b1\u3068\u3057\u3066\u653e\u6563\u3059\u308b\u30ea\u30cb\u30a2\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3068\u306f\u7570\u306a\u308a\u3001\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u96fb\u6e90\uff08SMPS\uff09\u306f\u9ad8\u5468\u6ce2\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\uff08\u901a\u5e3850kHz\uff5e1MHz\uff09\u3092\u5229\u7528\u3057\u3066\u30d1\u30eb\u30b9\u5e45\u5909\u8abf\uff08PWM\uff09\u306b\u3088\u3063\u3066\u51fa\u529b\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u57fa\u672c\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li><strong>\u6574\u6d41<\/strong>\u4ea4\u6d41\u5165\u529b\u3092\u8108\u52d5\u76f4\u6d41\u306b\u5909\u63db\u3059\u308b<\/li>\n<li><strong>\u9ad8\u5468\u6ce2\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0<\/strong>MOSFET\/IGBT\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u7528\u3044\u3066\u76f4\u6d41\u3092\u77e9\u5f62\u6ce2\u306b\u5909\u63db\u3059\u308b<\/li>\n<li><strong>\u5909\u63db<\/strong>: \u5c0f\u578b\u9ad8\u5468\u6ce2\u30c8\u30e9\u30f3\u30b9\u306b\u3088\u308b\u96fb\u5727\u30ec\u30d9\u30eb\u306e\u8abf\u6574<\/li>\n<li><strong>\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/strong>LC\u30d5\u30a3\u30eb\u30bf\u3092\u901a\u3057\u3066\u5b89\u5b9a\u3057\u305fDC\u51fa\u529b\u3092\u518d\u69cb\u7bc9\u3059\u308b<\/li>\n<\/ol>\n<h2>\u4e3b\u8981\u306a\u30c8\u30dd\u30ed\u30b8\u30fc\u3068\u7279\u6027<\/h2>\n<h3>1.\u00a0<strong>\u964d\u5727\u30b3\u30f3\u30d0\u30fc\u30bf\uff08\u30b9\u30c6\u30c3\u30d7\u30c0\u30a6\u30f3\u30b3\u30f3\u30d0\u30fc\u30bf\uff09<\/strong><\/h3>\n<ul>\n<li><strong>\u52b9\u7387<\/strong>: 85-95%<\/li>\n<li><strong>\u5fdc\u7528<\/strong>\u30d7\u30ed\u30bb\u30c3\u30b5\u96fb\u5727\u8abf\u6574\uff0812V\u21921.8V\uff09\u3001\u30d0\u30c3\u30c6\u30ea\u30fc\u99c6\u52d5\u30c7\u30d0\u30a4\u30b9<\/li>\n<li><strong>\u4e3b\u306a\u5229\u70b9<\/strong>\u90e8\u54c1\u70b9\u6570\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u512a\u308c\u305f\u904e\u6e21\u5fdc\u7b54\u3092\u5b9f\u73fe\u3002<\/li>\n<\/ul>\n<h3>2.\u00a0<strong>\u6607\u5727\u30b3\u30f3\u30d0\u30fc\u30bf\u30fc\uff08\u30b9\u30c6\u30c3\u30d7\u30a2\u30c3\u30d7\u30b3\u30f3\u30d0\u30fc\u30bf\u30fc\uff09<\/strong><\/h3>\n<ul>\n<li><strong>\u52b9\u7387<\/strong>: 80-90%<\/li>\n<li><strong>\u5fdc\u7528<\/strong>\uff1aLED\u30c9\u30e9\u30a4\u30d0\u30fc\u3001\u30d0\u30c3\u30c6\u30ea\u30fc\u96fb\u5727\u6607\u5727\uff083.7V\u21925V\uff09<\/li>\n<li><strong>\u30c7\u30b6\u30a4\u30f3\u30c1\u30e3\u30ec\u30f3\u30b8<\/strong>\u30b9\u30a4\u30c3\u30c1\u306e\u30b9\u30c8\u30ec\u30b9\u306b\u3088\u308b\u51fa\u529b\u96fb\u5727\u5236\u9650<\/li>\n<\/ul>\n<h3>3.\u00a0<strong>\u30d0\u30c3\u30af\u30d6\u30fc\u30b9\u30c8\u30b3\u30f3\u30d0\u30fc\u30bf<\/strong><\/h3>\n<ul>\n<li><strong>\u52b9\u7387<\/strong>: 75-85%<\/li>\n<li><strong>\u5fdc\u7528<\/strong>\uff1a\u5e83\u7bc4\u56f2\u306e\u96fb\u5727\u306b\u5bfe\u5fdc\u3057\u305f\u30d0\u30c3\u30c6\u30ea\u30fc\u30b7\u30b9\u30c6\u30e0<\/li>\n<li><strong>\u6ce8\u76ee\u3059\u3079\u304d\u7279\u5fb4<\/strong>: \u57fa\u672c\u69cb\u6210\u306b\u304a\u3051\u308b\u51fa\u529b\u6975\u6027\u53cd\u8ee2<\/li>\n<\/ul>\n<h3>4.\u00a0<strong>\u30d5\u30e9\u30a4\u30d0\u30c3\u30af\u30b3\u30f3\u30d0\u30fc\u30bf<\/strong><\/h3>\n<ul>\n<li><strong>\u52b9\u7387<\/strong>: 70-85%<\/li>\n<li><strong>\u5fdc\u7528<\/strong>\u4f4e\u96fb\u529bAC\/DC\u30a2\u30c0\u30d7\u30bf\u30fc\uff08100W\u672a\u6e80\uff09\u3001\u30de\u30eb\u30c1\u51fa\u529b\u30b7\u30b9\u30c6\u30e0<\/li>\n<li><strong>\u7279\u5fb4\u7684<\/strong>\u5909\u5727\u5668\u306f\u7d76\u7e01\u3068\u30a8\u30cd\u30eb\u30ae\u30fc\u8caf\u8535\u306e\u4e21\u65b9\u3092\u63d0\u4f9b\u3059\u308b<\/li>\n<\/ul>\n<h3>5.\u00a0<strong>\u30d5\u30a9\u30ef\u30fc\u30c9\u30b3\u30f3\u30d0\u30fc\u30bf\u30fc<\/strong><\/h3>\n<ul>\n<li><strong>\u52b9\u7387<\/strong>: 80-90%<\/li>\n<li><strong>\u5fdc\u7528<\/strong>\u4e2d\u51fa\u529b\u7523\u696d\u7528\u30b7\u30b9\u30c6\u30e0\uff08100W\uff5e500W\uff09<\/li>\n<li><strong>\u30a2\u30c9\u30d0\u30f3\u30c6\u30fc\u30b8<\/strong>\u30d5\u30e9\u30a4\u30d0\u30c3\u30af\u65b9\u5f0f\u3088\u308a\u3082\u30c8\u30e9\u30f3\u30b9\u306e\u5229\u7528\u52b9\u7387\u304c\u826f\u3044<\/li>\n<\/ul>\n<h2>\u91cd\u8981\u306a\u696d\u7e3e\u6307\u6a19<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\n<th>\u6a19\u6e96\u7bc4\u56f2<\/th>\n<th>\u696d\u754c\u6a19\u6e96<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u52b9\u7387<\/td>\n<td>70-95%<\/td>\n<td>80\u30d7\u30e9\u30b9\u30d7\u30e9\u30c1\u30ca\uff08\u226594%\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u5468\u6ce2\u6570<\/td>\n<td>50kHz\uff5e2MHz<\/td>\n<td>100\uff5e500kHz\uff08\u6700\u9069\u306a\u30d0\u30e9\u30f3\u30b9\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u96fb\u529b\u5bc6\u5ea6<\/td>\n<td>10\uff5e50W\/\u7acb\u65b9\u30a4\u30f3\u30c1<\/td>\n<td>30W\/in\u00b3\uff08\u5148\u9032\u8a2d\u8a08\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u30ea\u30c3\u30d7\u30eb\u30ce\u30a4\u30ba<\/td>\n<td>10\uff5e100mVpp<\/td>\n<td>&lt;50mVpp\uff08\u9ad8\u611f\u5ea6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u904e\u6e21\u5fdc\u7b54<\/td>\n<td>50\uff5e200\u03bcs<\/td>\n<td>100\u03bcs\u672a\u6e80\uff08\u9ad8\u6027\u80fd\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u96fb\u78c1\u4e21\u7acb\u6027\u306b\u95a2\u3059\u308b\u8003\u616e\u4e8b\u9805<\/h2>\n<p>\u73fe\u4ee3\u306e\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u96fb\u6e90\uff08SMPS\uff09\u306e\u8a2d\u8a08\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u4f1d\u5c0e\u6027\u653e\u51fa<\/strong>FCC Part 15\/EN 55032 Class B \u306b\u6e96\u62e0<\/li>\n<li><strong>\u653e\u5c04\u6027\u653e\u51fa<\/strong>\u9069\u5207\u306a\u30b7\u30fc\u30eb\u30c9\u3068\u30ec\u30a4\u30a2\u30a6\u30c8\u6280\u8853<\/li>\n<li><strong>\u529b\u7387\u6539\u5584<\/strong>: 75W\u3092\u8d85\u3048\u308b\u96fb\u6e90\u88c5\u7f6e\u306b\u306f\u5fc5\u9808\uff08IEC 61000-3-2\uff09<\/li>\n<\/ul>\n<h2>\u7523\u696d\u7528\u9014\u3068\u8981\u4ef6<\/h2>\n<h3><strong>\u5bb6\u96fb<\/strong><\/h3>\n<ul>\n<li><strong>\u96fb\u529b\u5bc6\u5ea6\u512a\u5148<\/strong>\u8d85\u5c0f\u578bUSB-C PD\u30a2\u30c0\u30d7\u30bf\u30fc<\/li>\n<li><strong>\u52b9\u7387\u57fa\u6e96<\/strong>DoE\u30ec\u30d9\u30ebVI\u3001CoC\u30c6\u30a3\u30a22<\/li>\n<li><strong>\u5b89\u5168\u8a8d\u8a3c<\/strong>UL\/IEC 62368-1<\/li>\n<\/ul>\n<h3><strong>\u7523\u696d\u30aa\u30fc\u30c8\u30e1\u30fc\u30b7\u30e7\u30f3<\/strong><\/h3>\n<ul>\n<li><strong>\u5805\u7262\u6027<\/strong>: \u5e83\u3044\u6e29\u5ea6\u7bc4\u56f2\uff08-40\u2103\uff5e+85\u2103\uff09<\/li>\n<li><strong>\u4fdd\u8b77\u6a5f\u80fd<\/strong>\u30e9\u30c3\u30c1\u30a2\u30c3\u30d7\u9632\u6b62\u6a5f\u80fd\u4ed8\u304dOVP\u3001OCP\u3001OTP<\/li>\n<li><strong>\u9694\u96e2\u8981\u4ef6<\/strong>IEC 61800-5-1\u306b\u6e96\u62e0\u3057\u305f\u5f37\u5316\u7d76\u7e01<\/li>\n<\/ul>\n<h3><strong>\u96fb\u6c17\u901a\u4fe1<\/strong><\/h3>\n<ul>\n<li><strong>\u5165\u529b\u7bc4\u56f2<\/strong>: 36\uff5e75V DC (\u516c\u79f048V)<\/li>\n<li><strong>\u91cd\u8907<\/strong>: N+1\u4e26\u5217\u52d5\u4f5c\u6a5f\u80fd<\/li>\n<li><strong>MTBF<\/strong>: 50\u4e07\u6642\u9593\u4ee5\u4e0a (Bellcore\/Telecordia)<\/li>\n<\/ul>\n<h3><strong>\u533b\u7642\u6a5f\u5668<\/strong><\/h3>\n<ul>\n<li><strong>\u6f0f\u6d29\u96fb\u6d41<\/strong>\uff1a&lt;100\u03bcA\uff08BF\/CF\u578b\u6a5f\u5668\uff09<\/li>\n<li><strong>\u5206\u96e2<\/strong>: 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   <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div>","protected":false},"excerpt":{"rendered":"<p>How Switching Power Supplies Revolutionized Modern Electronics: Principles and Applications Executive Summary Switching power supplies (SMPS) represent the dominant power conversion technology in contemporary electronics, achieving 70-95% efficiency compared to 30-50% in traditional linear regulators. This comprehensive guide examines their operational principles, architectural variations, and critical applications across industries. Core Operating Principle: Precision-Controlled Energy Transfer Unlike linear regulators that dissipate excess voltage as heat, SMPS utilize high-frequency switching (typically 50kHz-1MHz) to regulate output through pulse-width modulation (PWM). The fundamental process involves: Rectification: Converting AC input to pulsating DC High-Frequency Switching: Chopping DC into square waves via MOSFET\/IGBT transistors Transformation: Adjusting voltage levels through compact high-frequency transformers Filtering: Reconstructing stable DC [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2349,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"_excerptai":0,"_xhaitool_aitasks":false,"_xhaitool_aitasks_status":false,"_aiimage_cueword":"","_aiimage_status":0,"_xhai_excerpt":"","_joinchat":[],"footnotes":""},"news_center":[67],"class_list":["post-2348","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_center-industry-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.5 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ 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