IC Power Consumption
IC Power Consumption
(OP)
HI,
I would like to seek for advice for measuring the actual power consumption of a chip.
The idea in my mind is to tap the VCC line of the chip and measure the current flowing through since the voltage is set accordingly. So the power = VI. Is that a correct method.
The IC i am going to measure the power consumption is LCD display Driver. Please give some advice. THank
I would like to seek for advice for measuring the actual power consumption of a chip.
The idea in my mind is to tap the VCC line of the chip and measure the current flowing through since the voltage is set accordingly. So the power = VI. Is that a correct method.
The IC i am going to measure the power consumption is LCD display Driver. Please give some advice. THank





RE: IC Power Consumption
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: IC Power Consumption
One more thing to top up, the driver have two power supply which one is vcc(AC), vdd(DC) for logic driver... means i have to measure both? to get the separate power consumption?
RE: IC Power Consumption
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: IC Power Consumption
I'd put a 1 or 10 Ohm resistor in the supply lines and then look at the voltage across it with a scope.
I=V/R
An alternative would be measure the whole circuit assembly's current then yank that chip and measure it again.
Idriver = Isystem - Isystem w/o driver
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: IC Power Consumption