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I have a design where I need to generate several voltages to support.
Attached is a block diagram of the power management and looking for the power calculation for each input device for each device.
Easy calculation is Power input power out and power out is simply VI input = VI output.
Is there a TI tool that does this for you where you just change the devices.
ThanksPower Archecture.pdf
Hi Mr DDM,
There is no direct tool to estimate input power directly as of now. However I've attached below a image on how you can calculate approximate input power.
firstly you need to calculate out power of all stages. once it is done, to calculate input power of final stage, you need to divide output power by the approximate efficiency of that stage (this data can be taken from datasheets). Then add up all input powers of last stages to get out put power of previous stage. and repeat. this flow is from right to left in the image attached below. I hope this will suffice for input power estimation.
Also,
In your block diagrams I noticed 2 converters connected in parallel in some places. I don't think we can short the outputs of 2 circuits unless they're identical. even then we have to make sure they're synchronized and don't pump current into each other in reverse direction.
Regards,
Vishwanath
