Project:Pi-Power topping board: Difference between revisions

Project:Pi-Power topping board (view source)

12 bytes added , 6 November 2012

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Revision as of 09:55, 6 November 2012 (view source) Artag (talk \| contribs) (→‎Power requirements) ← Older edit		Revision as of 09:56, 6 November 2012 (view source) Artag (talk \| contribs) (→‎Power requirements) Newer edit →
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	Since it's a linear regulator, the input current is the output current + internal use. ~~This~~ is quoted at typically 6mA (quiescent current) - high, but a small proportion of the Pi's total. The main loss in that regulator is because it's passing up to 750mA and dropping 1.7V. That's 1.275 watts out of a total Pi consumption of 3.75, which is where the calculation of 1/3 comes from. --[[User:Artag\|Artag]] ([[User talk:Artag\|talk]]) 09:55, 6 November 2012 (UTC)		Since it's a linear regulator, the input current is the output current + internal use. The internal use is quoted at typically 6mA (quiescent current) - high, but a small proportion of the Pi's total. The main loss in that regulator is because it's passing up to 750mA and dropping 1.7V. That's 1.275 watts out of a total Pi consumption of 3.75, which is where the calculation of 1/3 comes from. --[[User:Artag\|Artag]] ([[User talk:Artag\|talk]]) 09:55, 6 November 2012 (UTC)

	==Charge/power controllers==		==Charge/power controllers==