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Mark
  • Member for 12 years, 11 months
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91 votes
8 answers
90k views

When is a MOSFET more appropriate as a switch than a BJT?

65 votes
9 answers
125k views

How do I saturate an NPN transistor?

30 votes
5 answers
46k views

Is it safe to drive a MOSFET from an output pin of a microcontroller?

25 votes
1 answer
4k views

PCB layout questions for MCU breakout board

25 votes
8 answers
13k views

Is there such a thing as a switch that can be actuated automatically?

18 votes
5 answers
3k views

Can a switching power supply be built on a breadboard?

17 votes
4 answers
16k views

What is a one-bit ADC good for?

14 votes
5 answers
8k views

24VAC/5VDC power supply design

12 votes
2 answers
5k views

How do I read a datasheet for a solid state relay?

10 votes
2 answers
3k views

Is it normal to have a rats-nest of VCC/GND traces under an IC?

9 votes
3 answers
833 views

Is it safe to run long I/O wires to a microcontroller?

8 votes
3 answers
11k views

SSR vs optocoupler with TRIAC output

8 votes
2 answers
3k views

How far is "too far" when routing traces for crystals, and how asymmetrical is "too much"?

8 votes
4 answers
8k views

Why does a speed-controlled computer fan require 4 pins?

8 votes
2 answers
41k views

How do I drive a TRIAC from a microcontroller (for low voltages)?

8 votes
2 answers
17k views

What is a phase difference between voltage and current?

7 votes
3 answers
666 views

Can I use an inductive load in an ATX-to-bench supply project?

7 votes
6 answers
8k views

What would a professional use to switch sprinkler solenoids?

7 votes
2 answers
9k views

Is it possible to have 16 simultaneous PWM outputs on a 64-pin STM32F4 device?

6 votes
1 answer
970 views

Playing with a shift register and some LEDs

6 votes
2 answers
5k views

What is a flyback regulator?

5 votes
4 answers
10k views

What is the common pin configuration upon microcontroller reset?

5 votes
4 answers
5k views

Is this a proper use of a PNP transistor?

4 votes
3 answers
3k views

Load capacitance for RTC Crystal

4 votes
3 answers
13k views

How should I set up my text in Eagle for the maximum chance of success?

4 votes
2 answers
3k views

Building a simple mcu-driven array of LEDs

4 votes
2 answers
3k views

How do I determine the power rating of a stepper motor?

4 votes
6 answers
4k views

Graphical equivalent to HD44780 LCD controller

4 votes
3 answers
8k views

How to determine proper stepper polarity?

3 votes
3 answers
23k views

Is silver-bearing solder appropriate for general hobbyist use?