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Connecting different ground together

The simplest 'analysis-free' method of connecting grounds together is the 'star ground'. You pick one point, and connect all the grounds to that. This prevents the most common type of ground ...
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Does an integrated circuit for driving a tunable white LED strip using potentiometers for dimming and changing light temperature exist?

Something like this perhaps. simulate this circuit – Schematic created using CircuitLab D1 Q1 R11 R12 R13 form a current source that sends a current representing the desired brightness to R5 R5 ...
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What's the function of this schematic? - Waveshare E-Paper driver

The circuit turns on VCC and 3V3 (on a part of the schematic that you have not posted, regulator U2 connected to the VCC_EN signal) when EPD_RST is high. Simple as that.
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Do I need a pull-down resistor with this MOSFET-based motor driver?

No. Your existing gate drive circuit acts as a voltage divider decreasing the voltage on the MOSFET gate. Move the pull down resistor (R2) to the pin of the micro and the driver should work fine. The ...
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OpAmp filter drive capabilities

I am willing to build a strong filter (e.g., third order Chebyshev) at my TLV313 output stage. However, I only find that the TLV313 can drive up to 1 nF of a purely capacitive load (TLV313 OpAmps, ...
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BSS138 level shifter causing problems

Though my replay is for sure timed out, I think it's worth to observe that the BSS138 level shifter can turn useful when you need to go back and forth with your signals between two blocks with ...
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