User helloworld922 - Electrical Engineering Stack Exchange

helloworld922

Member for 10 years, 7 months
Last seen more than a week ago

helloworld922.blogspot.com
United States

244 Answers

Score Activity Newest

46 votes

How are current and voltage related to torque and speed of a brushless motor?

answered Sep 3, 2012 at 19:16

37 votes

Accepted

accounting for LED resistance

answered Jul 19, 2013 at 0:52

36 votes

Accepted

Why are these readings violating ohm's law? (Are they?)

answered Sep 28, 2015 at 10:25

35 votes

Accepted

Why route air gaps for voltage isolation on PCBs?

answered Jun 27, 2013 at 8:52

34 votes

Accepted

When to use pull-down vs. pull-up resistors

answered Jun 3, 2014 at 22:40

33 votes

Accepted

Choosing resistor values for inverting amplifier and why?

answered Mar 11, 2014 at 8:03

26 votes

Accepted

How can I tell the size of a barrel power connector?

answered Mar 3, 2013 at 4:12

23 votes

What is the smallest and simplest seed for a random number generator?

answered Sep 2, 2015 at 17:00

19 votes

Why is RAM not put on the CPU chip?

answered Jun 16, 2015 at 0:33

19 votes

What is the purpose of a resistor in the feedback path of a unity gain buffer?

answered Jan 31, 2013 at 22:58

17 votes

Accepted

Rotary Encoder Detents

answered Apr 6, 2013 at 20:44

16 votes

Half-wave rectifier and RMS value

answered Jun 9, 2013 at 5:30

16 votes

Accepted

What's the importance of source impedance termination?

answered Jun 22, 2013 at 0:24

15 votes

Accepted

Why do characteristic impedances matter only when traces are longer than half a wavelength?

answered Jun 30, 2015 at 17:46

14 votes

Are the noise floor and signal to noise ratio same things?

answered Feb 16, 2018 at 20:48

14 votes

Accepted

Is a Schottky diode appropriate for reverse polarity protection?

answered Jan 10, 2013 at 1:42

13 votes

Accepted

What do the arrows in transistor symbols point to (and from)?

answered Dec 6, 2014 at 9:10

12 votes

How to Measure Power Consumption on Extremely Low Power Devices?

answered Mar 23, 2017 at 1:00

12 votes

Why are the power transmission/distribution systems AC and not DC?

answered Jan 12, 2015 at 3:19

12 votes

Accepted

How should unused I/O pins be configured on ATMega328P for lowest power consumption?

answered Oct 12, 2012 at 2:16

12 votes

3 phase computer chip

answered Sep 13, 2012 at 19:54

12 votes

Why would one drive LEDs with a common emitter?

answered Feb 12, 2013 at 22:25

11 votes

Accepted

Should electrolytic capacitors get hot?

answered Dec 18, 2012 at 17:55

11 votes

Open and Short Circuit questions

answered Feb 23, 2014 at 8:02

9 votes

Accepted

Why is it safer to place a switch on the positive side of a voltage source?

answered Dec 24, 2015 at 1:36

9 votes

Why don't power meters measure volt-amps

answered Sep 5, 2013 at 4:57

9 votes

How do I find the resistance between three terminals?

answered Sep 25, 2014 at 7:14

9 votes

Accepted

Will it hurt a non-powered power supply to see 12/24V on the output?

answered Apr 2, 2015 at 17:51

8 votes

Accepted

can I use any OP AMP as buffer

answered Dec 13, 2015 at 23:56

8 votes

Power's relationship to Resistance

answered Oct 6, 2015 at 17:42

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