User Autistic

20 votes

Electrical reason for the minimum altitude (-50 feet) in the computer specs?

answered Sep 20, 2021 at 10:38

15 votes

What is the purpose of putting a capacitor on the primary side of a step-down transformer?

answered Jun 25, 2019 at 0:49

15 votes

Why does a brushed DC motor current draw differ with direction of rotation?

answered Apr 19, 2021 at 22:31

13 votes

SMD resistor maximum voltage: is 200V really a limiting factor?

answered Apr 2, 2016 at 11:26

12 votes

Why is it that we use capacitors in Differentiator & Integrator circuits (comprising Op Amps) & not inductors?

answered Dec 16, 2015 at 19:20

12 votes

Accepted

Does magnetism affect the likelihood of an electrical arc occurring?

answered Jan 3, 2016 at 0:49

12 votes

Why do microwave ovens use magnetrons?

answered Oct 19, 2019 at 6:57

12 votes

Accepted

Where do I hook up a speaker in this schematic?

answered Mar 22, 2023 at 3:55

11 votes

What could have caused the MOSFET to fail in this high-side switching circuit?

answered Aug 31, 2020 at 22:24

11 votes

L7805 destroyed - why?

answered Jun 15, 2017 at 11:35

11 votes

Accepted

Full wave rectifier vs full wave bridge rectifier

answered Jan 17, 2016 at 19:02

10 votes

Can thin sections of copper traces be used as fuses?

answered Nov 11, 2015 at 20:13

10 votes

Single LED powered directly from AC mains

answered Apr 9, 2016 at 12:00

10 votes

Accepted

Why do "dual frequency" or low frequency switching regulators exist when higher frequency is better?

answered Jul 10 at 8:23

9 votes

Why is this rectifier bridge using double diodes?

answered May 19, 2023 at 9:04

9 votes

Does the physical size of electrolytic capacitors affect how they perform?

answered Apr 17, 2016 at 2:54

9 votes

What is the reason that the value "47" is so popular in electrical engineering?

answered Aug 11, 2015 at 3:59

9 votes

Two black boxes display the same impedance at all frequencies. Which has the single resistor?

answered Feb 25, 2016 at 11:15

8 votes

Accepted

Can you damage DC motor by backdriving it (with disconnected leads)?

answered Nov 25, 2015 at 20:15

8 votes

Practical considerations when using a large number of capacitors in parallel

answered Oct 22, 2019 at 2:56

8 votes

Overdrive guitar pedal sounds better without a clipping diode

answered Feb 11, 2022 at 11:52

7 votes

Why am I destroying MOSFETs in this overvoltage protection circuit?

answered Aug 8, 2023 at 5:27

7 votes

What is this component, and did I make this schematic correctly?

answered Jan 14, 2023 at 4:03

7 votes

Old Record Player Motor Doesn't Have Torque To Start

answered Aug 4, 2020 at 2:15

7 votes

Accepted

Why is there often a metal clip around a dc motor

answered Jun 17, 2017 at 11:02

7 votes

Why do my P-channel MOSFETs keep dying in this H-bridge?

answered Mar 8, 2016 at 10:50

7 votes

Schottky barrier diode as a bridge rectifier?

answered Mar 24, 2016 at 8:07

6 votes

What's the difference between NPN and PNP transistors?

answered Nov 26, 2015 at 10:27

6 votes

Why does this bridge rectifier claim to have no diode forward voltage drop?

answered Jan 1, 2016 at 12:37

6 votes

Accepted

Is it safe to use a Peak detection circuit on a 200 V AC sine wave ?

answered Jul 2, 2017 at 5:27

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791 Answers

Electrical reason for the minimum altitude (-50 feet) in the computer specs?

What is the purpose of putting a capacitor on the primary side of a step-down transformer?

Why does a brushed DC motor current draw differ with direction of rotation?

SMD resistor maximum voltage: is 200V really a limiting factor?

Why is it that we use capacitors in Differentiator & Integrator circuits (comprising Op Amps) & not inductors?

Does magnetism affect the likelihood of an electrical arc occurring?

Why do microwave ovens use magnetrons?

Where do I hook up a speaker in this schematic?

What could have caused the MOSFET to fail in this high-side switching circuit?

L7805 destroyed - why?

Full wave rectifier vs full wave bridge rectifier

Can thin sections of copper traces be used as fuses?

Single LED powered directly from AC mains

Why do "dual frequency" or low frequency switching regulators exist when higher frequency is better?

Why is this rectifier bridge using double diodes?

Does the physical size of electrolytic capacitors affect how they perform?

What is the reason that the value "47" is so popular in electrical engineering?

Two black boxes display the same impedance at all frequencies. Which has the single resistor?

Can you damage DC motor by backdriving it (with disconnected leads)?

Practical considerations when using a large number of capacitors in parallel

Overdrive guitar pedal sounds better without a clipping diode

Why am I destroying MOSFETs in this overvoltage protection circuit?

What is this component, and did I make this schematic correctly?

Old Record Player Motor Doesn't Have Torque To Start

Why is there often a metal clip around a dc motor

Why do my P-channel MOSFETs keep dying in this H-bridge?

Schottky barrier diode as a bridge rectifier?

What's the difference between NPN and PNP transistors?

Why does this bridge rectifier claim to have no diode forward voltage drop?

Is it safe to use a Peak detection circuit on a 200 V AC sine wave ?