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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Reduce Power Consumption</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/16967/reduce-power-consumption</link><description>hi everybody. 
 Please help me on this 
 I use nRF51822 as iBeacon with ble_app_beacon in Nordic DK in below state: 
 
 only advertise in iBeacon mode 
 interval = 100 ms 
 DC/DC disable 
 All Peripherals are disabled like GPIO 
 
 My source</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 12 Oct 2016 06:37:14 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/16967/reduce-power-consumption" /><item><title>RE: Reduce Power Consumption</title><link>https://devzone.nordicsemi.com/thread/65084?ContentTypeID=1</link><pubDate>Wed, 12 Oct 2016 06:37:14 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:9021bb88-5fed-4f73-852a-ebe2d9d131eb</guid><dc:creator>Mohsen</dc:creator><description>&lt;p&gt;because I think It may has bad effect on user experience. although as I saw, with reducing interval to 50%,  Power will reduce to 33% due to a steady constant current.&lt;/p&gt;
&lt;p&gt;thank you&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Reduce Power Consumption</title><link>https://devzone.nordicsemi.com/thread/65083?ContentTypeID=1</link><pubDate>Tue, 11 Oct 2016 14:21:58 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:4fdb93cc-6084-4214-9136-19e83a318e3c</guid><dc:creator>Sigurd</dc:creator><description>&lt;p&gt;Is there any reason you won&amp;#39;t increase it? From 100ms to 200ms, you will get ~50% reduced power consumption.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Reduce Power Consumption</title><link>https://devzone.nordicsemi.com/thread/65082?ContentTypeID=1</link><pubDate>Tue, 11 Oct 2016 14:18:25 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:ffc9ff97-34db-4b58-abc4-6ce4173f551a</guid><dc:creator>Mohsen</dc:creator><description>&lt;p&gt;No. I don&amp;#39;t want to increase.
But I expected the current consumption be lower than this.
thank you&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Reduce Power Consumption</title><link>https://devzone.nordicsemi.com/thread/65081?ContentTypeID=1</link><pubDate>Tue, 11 Oct 2016 11:39:12 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:e276dc13-104f-4344-8a0c-dd444b9be14b</guid><dc:creator>Sigurd</dc:creator><description>&lt;p&gt;I didn&amp;#39;t find anything incorrect. 280 uA seems normal with only 100ms advertising interval. Did you try to increase the advertising interval ?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Reduce Power Consumption</title><link>https://devzone.nordicsemi.com/thread/65080?ContentTypeID=1</link><pubDate>Tue, 11 Oct 2016 10:46:46 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:d59dd1e8-f4e4-408b-afbe-ea25e939f90e</guid><dc:creator>Mohsen</dc:creator><description>&lt;p&gt;thank you Sigurd for your response.&lt;/p&gt;
&lt;p&gt;another question. did you see my source code and explanations? are they corrects? could somethings be incorrect? is 280 uA logical? i thought in this case my current be about 20 to 50 uA.&lt;/p&gt;
&lt;p&gt;nordic recommend to disable DC/DC in some versions of nRF51822. (i have one of that versions)&lt;/p&gt;
&lt;p&gt;thank you.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Reduce Power Consumption</title><link>https://devzone.nordicsemi.com/thread/65079?ContentTypeID=1</link><pubDate>Mon, 10 Oct 2016 15:44:08 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:a4665fbf-7132-4b6d-988a-61a1e5834a42</guid><dc:creator>Sigurd</dc:creator><description>&lt;p&gt;In order to reduce the power consumption, you can try to:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Increase the advertising interval&lt;/li&gt;
&lt;li&gt;Enable DCDC&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;There is a tradeoff between the discovery time and the advertising interval, try to do experiments to determine the slowest advertising rate that still provides a fast enough discovery time.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>