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Sender: "piclist-bounces@mit.edu" Date: Mon, 3 Feb 2020 20:56:02 -0800 Subject: Re: [EE] Power transmission Thread-Topic: [EE] Power transmission Thread-Index: AdXbGRenYVJGBEwaQHa0xX8HdB935g== Message-ID: <29e45f501057b3328393ba2ef6e3348f.squirrel@mai.hallikainen.org> References: <5E38A14C.8050802@narwani.org> <5E38EBC6.9090108@narwani.org> List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: Pass (protection.outlook.com: domain of mai.hallikainen.org designates 208.77.216.252 as permitted sender) receiver=protection.outlook.com; client-ip=208.77.216.252; helo=mailscanner.virtbiz.com; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mitprod.onmicrosoft.com; s=selector2-mitprod-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=XCnH2lGhhcD482WIq02H8u1qX1V4lVYROUYwgZPVXiA=; b=cLjtNNhihLMjGBt/9reVKOUGtib4/EzpS2o+lDFvMH70inxC7fFyk6p9CibDY2UpM6EtWV9MRNqCbuM5zpsTE7lyb11LzeLlAq6MCsawAt8fl5M5uf8acYxnCOeDvin/pVMN51uoLuhPx7U9JddybB/8PrW5j/KsBasYlWcLZMM= authentication-results: spf=pass (sender IP is 208.77.216.252) smtp.mailfrom=mai.hallikainen.org; mit.edu; dkim=none (message not signed) header.d=none;mit.edu; dmarc=permerror action=none header.from=mai.hallikainen.org;compauth=pass reason=111 user-agent: SquirrelMail/1.4.22-5.el6 errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-authentication-warning: mai.hallikainen.org: apache set sender to harold@mai.hallikainen.org using -f x-spam-status: No x-greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.6.2 (mailscanner.virtbiz.com [208.77.216.252]); Mon, 03 Feb 2020 22:56:07 -0600 (CST) x-topics: [EE] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Have a look at the wireless charging stuff at https://www.analog.com/en/products/power-management/battery-management/wire= less-power-transfer.html# .. The FAQ says: Q. At what distances can power be transferred? A. The existing LTC4120‐based systems with PowerbyProxi (Proxi) transmitters were designed to transmit up to 2W across a gap up to 1.0cm. When used with the basic reference design transmitter, this distance increases to 1.2cm. However, if lower power levels are acceptable, it is possible to transmit at even greater distances. Please contact Linear Technology for additional information. Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com Not sent from an iPhone. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .