hello all ,
we are using our custom board with DM385 which is battery powered. we are facing an critical issue on battery monitoring side . on ideal state our board was consuming 0.44 watts ( 3.7v * 120mA). but when our device starts streaming the video, power consumption was around 1.85w (3.7v * 500mA) .
we want to show the battery percentage in application layer with datas from fuel gauge . since difference between our power consumption on ideal state and full streaming state was 1.4 w ( 1.85w -0.44w) , the percentage on GUI was falling and rising with huge difference.
1. How to deal this ? is it really a problem on s/w or h/w or its normal with this kind of power difference ? How to deal this ?
Pmic and charger we are using were from TI but our fuel gauge was not from TI . it was from some third party having following two modes of operation
1.Voltage mode ( gives capacity only with voltage)
2.Mixed mode ( gives capacity with both voltage and current)
2. we are not getting the current values updated in our fuel gauge ,so mixed mode of operation is not working but voltage mode is working good with correct voltage values . we are working on to make mixed mode of operation working. is current and voltage combination for calculating capacity will solve this issue of huge power consumption difference? we think it will not !! . we are not getting proper support from fuel gauge vendor ! . we expecting your valuable suggestion .
