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  1. R

    Tantalum capacitors Vs. Aluminium capacitors for synchronous switching converter input pin.

    I'm using the LM5166 (Fixed 5V) version, the data sheet suggests to use a tantalum or aluminium capacitors for the input capacitor. The data sheet says that the capacitors is selected mainly because of its RMS current rating and Voltage rating. A higher capacitance just helps in case there's a...
  2. R

    Pad size too small.

    Can't route from the 'IN' pad of the MP2672A li-ion battery charger IC. The pad is too small. How to fix this? I'm worried if the footprint itself is wrong.
  3. R

    Setting up a Common Anode Dual LED with one reference point.

    I want to use a dual LED in my schematic. The dual LED used is common anode. The LEDs should be controlled by a single pin from a battery charger IC. At one event the pin is pulled low, LED 1 should be ON. At another event, the pin open-drained. I've connected a 10k ohm resistor from my common...
  4. R

    Power ground, control ground routing

    I want to use the TPS63002 for a project. This IC has two ground pins, power ground and control ground. I understand that the power ground is a return path for the high current switching transistors and the control ground is a reference for the error amplifiers and other digital logic stuff. But...
  5. R

    power

    They didn't exactly word it as 'minimal heatng', they said 'no heat'. I just assumed minimal heating because 'no heat' is impossible.
  6. R

    power

    I can't use a linear regulator because of heat dissipation, but can I use a switching regulator?
  7. R

    power

    I guess, when I asked for further details, they said to not try and get the answer from them.
  8. R

    power

    I don't think that's it, they explicitly asked me to design a PCB, and send them the Gerber files, I interviewed for the PCB designer position.
  9. R

    power

    No, they didn't talk about an actual use for this design, and I don't think they meant to, I think they just want to see how I approach a problem that isn't very common. I mean, no one simply connects batteries with different charges in parallel, right?
  10. R

    power

    Two 4s Lipo batteries at 16.8V and 14.8V, connect them in parallel, minimal heat dissipation. This is what they asked me to do.
  11. R

    power

    😂I know I suck at explaining, this is a test, it was given to me during an interview, I was asked to design a PCB for this and submit it.
  12. R

    power

    The objective was not balancing the packs, it was simply about getting a voltage output (constant, ignoring the decrease over time due depleting battery charge). Balancing the packs was an idea that I thought of. Anyhow thanks for your opinion✌️
  13. R

    power

    At first, I tried to balance the batteries, using a safe amount of current through resistors, but that idea was rejected, because I was generating too much heat, so no resistors, so I'm thinking of choosing your idea of diodes. `thanks
  14. R

    power

    Two battery packs with 4 cells in series, each pack has a different voltage, I need to connect the two of them in parallel and without the batteries blowing up, or heating too much, I need a, output voltage.
  15. R

    power

    Can I connect two batteries with different charges at the same time to Buch/boost converter?
  16. R

    power

    This isn't for a practical project, it was a task given to me, and I don't need constant voltage output, for a long period of time, I just need it to not fluctuate so much in a short period of time, where changes due to battery discharge can be ignored.
  17. R

    power

    If I wanted to connect two 4S Lipo batteries, with unequal charges in parallel, and get a constant output voltage, with minimal heat dissipation, how would I do this?
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