#analogcircuits

[adafruit]

TPS65131 Split-Output Booster Supply

Generating a negative voltage over -5V is kinda annoying: most chargepumps max out at 5V inversion, and ones that can double-then-invert like the MAX232 aren't high current. We bumped into the TPS65131

https://www.digikey.com/en/products/detail/texas-instruments/TPS65131RGER/1672464

while working on our Floppsy design

- we need -12V to bias the Apple Disk ][ drive control system. It's a combo buck and boost: give it 3~5VDC and give you up to -15V and +15V output. The split supply part is particularly nice because you'll want +-12V or +-15V for analog projects. This standalone power supply breakout has two mini trim pots to help adjust the output voltages on both sides so you can have as little as +/-6V and up to +/-15V. With the 2A internal switches, you'll get a fair amount of current on either rail.

[industrydesignservices]

Teksun has expertise across a wide range of Analog Design Services services such as circuit board design, mixed-signal, wireless design, and RF design. To know more, visit @ https://teksun.com/solution/iot-air-conditioner-control-system/

[seektronics]

Why can't via hole be in pad? If I want Via in pad, how to do?

https://www.seektronics.com/index.php?route=blog/post&blog_post_id=49

[tinkersphere]

Measure the distance between your sensor and an object up to 15 feet away using a single analog pin! #infraredsensor #hobbyelectronics #robotics #tinkersphere #analogcircuits (at Tinkersphere)

[analogcircuithacker-blog]

Debugging Circuits

So how do you debug a circuit? Start with the easy stuff:

Is it plugged in?

Did it blow a fuse?

Is it drawing power and if so, how much?

If it’s digital, did you turn it off and turn it on to reset the microprocessor?

Even better, did you disconnect the power entirely? Some processors have keep alive circuits so they’re really always on.

Enough for now. We’ll start with appetizers before we get to the main course.

[patr0nsaint]

Here is fully stand-alone, implemented AC to DC converter with Sound Reactive LEDs (ignore person giving a presentation in the background 😂). Regular AC wall outlet with switch, goes through the transformer (3rd pic), then goes through 4 diodes (bridge rectifier) and a filter (capacitor) (2nd pic), and finally feeds the Sound Reactive LEDs connected to microcontroller with a steady DC power supply. Ran into some issues as the circuit pulls too much current and overheats quickly, as a result it only effectively works for a few seconds (you can see the LEDs light up after the first snap). Still learning! #ElectricalEngineering #EE #analogcircuits #finalproject (at UNT College of Engineering)

[sunnysrodrigues]

A sudden whip of Nostalgia that hits and puts you into the well of so many sweet memories #Btech #AnalogCircuits #Nostalgia #Studies #undergrad (at JNTU Kakinada)

[seektronics]

Warning: Don't let these little bugs ruin your PCB design!

[seektronics]

Can inductor current and capacitor voltage change abruptly?