May 10, 2011 #1 0 0by1 Junior Member level 2 Joined May 10, 2011 Messages 22 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,283 Activity points 1,422 Hi all, Please clarify my doubts about power budget calculation of board. (1) total power = No. of devices x [ ( supply current x supply voltage) + ( leakage current x supply voltage) ] am I right ??:?: (2) Whether I have to consider input/output current (Iol..Ioh..)???, specially in case of transceivers, buffers. Thanks in advance.
Hi all, Please clarify my doubts about power budget calculation of board. (1) total power = No. of devices x [ ( supply current x supply voltage) + ( leakage current x supply voltage) ] am I right ??:?: (2) Whether I have to consider input/output current (Iol..Ioh..)???, specially in case of transceivers, buffers. Thanks in advance.
May 10, 2011 #2 S steinar96 Member level 5 Joined Oct 9, 2009 Messages 94 Helped 24 Reputation 48 Reaction score 24 Trophy points 1,288 Activity points 1,989 1) Generally, power drawn by a circuit equals the input voltage times the current it draws. Or equally it is the sum of the voltages multiplied by the currents of all the subcircuits/subdevices in the circuit
1) Generally, power drawn by a circuit equals the input voltage times the current it draws. Or equally it is the sum of the voltages multiplied by the currents of all the subcircuits/subdevices in the circuit