{"id":12884,"date":"2019-06-21T07:00:06","date_gmt":"2019-06-21T06:00:06","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=12884"},"modified":"2019-06-19T12:49:41","modified_gmt":"2019-06-19T11:49:41","slug":"650w-modular-power-supplies-offer-up-to-10-outputs-with-bf-ready-isolation-and-low-acoustic-noise","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/650w-modular-power-supplies-offer-up-to-10-outputs-with-bf-ready-isolation-and-low-acoustic-noise\/","title":{"rendered":"650W modular power supplies offer up to 10 outputs with BF ready isolation and low acoustic noise"},"content":{"rendered":"\n<p>TDK Corporation announces the introduction of the TDK-Lambda brand <strong><a href=\"http:\/\/www.uk.tdk-lambda.com\/qm\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"QM4 series of AC-DC modular power supplies (opens in a new tab)\">QM4 series of AC-DC modular power supplies<\/a><\/strong> reducing the series\u2019 footprint by 15%.\u00a0<\/p>\n\n\n\n<p>The 108mm wide QM4 can accept up to four single or dual output modules and a dual output standby\/signal board to provide up to 10 outputs.&nbsp;<\/p>\n\n\n\n<p>All models in the QM series feature low acoustic noise and full MOPPs isolation. <\/p>\n\n\n\n<p>With medical and industrial safety certifications, the QM series is suitable for use in a wide range of applications, including BF rated medical equipment, test and measurement, broadcast, communications and renewable energy.<\/p>\n\n\n\n<p>The QM4 can deliver 650W output power with a 180-264Vac input and 550W with a wide range 90-264Vac input.&nbsp;<\/p>\n\n\n\n<p>Output voltages from 2.8V to 105.6V can be specified and an optional standby\/signal module can be fitted. This provides a choice of one or two standby voltages (5V, 12V and 13.5V at up to 2A), a PMBus communication interface, unit inhibit or enable, and an AC Good signal.<\/p>\n\n\n\n<p>The units can operate in ambient temperatures of -20 to +70\u00baC, derating output power and output current by 2.5% per \u00baC above 50\u00baC. Overall case dimensions are a compact 108 x 63.5 x 270mm (W x H x D), and the weight is between 1.125kg and 1.845kg, depending on the module configuration.&nbsp;<\/p>\n\n\n\n<p>The QM series\u2019 operating efficiency is up to 91%, reducing internal heat losses and allowing the use of a low speed, low audible noise fan for cooling. This enhances the patient\/user experience and increases reliability. The series is also covered by a seven-year warranty.<\/p>\n\n\n\n<p>The QM series power supplies are certified to IEC\/EN\/UL\/CSA 60601\u20111, ANSI\/AAMI ES 60601\u20111, IEC\/EN 61010\u20111 and IEC\/EN\/UL\/CSA 60950\u20111, with CE marking for the Low Voltage, EMC and RoHS2 Directives.&nbsp;<\/p>\n\n\n\n<p>With an input to output isolation of 4,000Vac (2 x MOPPs), 1,500Vac input to ground (1 x MOPP) and 1,500Vac (1 x MOPP) output to ground, the series can be used in BF rated medical equipment such as blood pressure monitors and incubators. <\/p>\n\n\n\n<p>The QM4 has a maximum earth leakage current of 300\u00b5A, while still complying with the EN61000-6-3:2007 and EN60601-1-2:2015 (curve B conducted and radiated) emission standards. The units also meet the EN60601-1-2 and EN61000-6-2 immunity standards.<\/p>\n\n\n\n<p>Selecting products from the QM series has been made extremely simple using an online configurator, which provides an optimised module selection with a choice of signals, leakage current and standby voltages.&nbsp;<\/p>\n\n\n\n<p>Upon entering the desired output voltages and currents, the configurator will automatically produce a short 7-digit code to facilitate easy order placement.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>TDK Corporation announces the introduction of the TDK-Lambda brand QM4 series of AC-DC modular power supplies reducing the series\u2019 footprint by 15%.\u00a0 The 108mm wide QM4 can accept up to four single or dual output modules and a dual output standby\/signal board to provide up to 10 outputs.&nbsp; All models in the QM series feature &hellip;<\/p>\n","protected":false},"author":1,"featured_media":12885,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104],"tags":[6556,6557,2186,3148],"class_list":["post-12884","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-electronics","tag-ac-dc-modular-power-supplies","tag-qm4","tag-tdk-corporation","tag-tdk-lambda"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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