User Tim Williams

54 votes

Accepted

Why do capacitors have less energy density than batteries?

answered Jul 23, 2023 at 5:44

39 votes

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Is there a way to use any communication without a CPU?

answered Apr 17, 2023 at 17:40

38 votes

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How are USB-C cables so thin?

answered Aug 14 at 1:22

31 votes

Can two BJT transistors work as a full bridge rectifier?

answered Apr 7, 2023 at 10:02

27 votes

How should I optimize I2C communication over a 10 to 25 meter cable?

answered Aug 23, 2023 at 4:02

27 votes

Is my PCB design good or really bad?

answered Feb 15 at 3:44

27 votes

How can tiny MOSFETs be rated for relatively high current?

answered Apr 4 at 1:58

26 votes

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Why do microcontrollers always need external CAN tranceiver?

answered Jun 26, 2023 at 23:45

25 votes

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Why is my super-capacitor self-discharging so fast?

answered May 13 at 20:46

23 votes

Impedance matching on RF PCB

answered May 7, 2023 at 22:15

23 votes

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Is twisting a single ended signal with its own GND really useful?

answered Jun 23, 2022 at 17:11

20 votes

Are there still practical modern uses for large through-hole resistors?

answered Feb 22, 2023 at 17:07

20 votes

Who is the main manufacturer of jelly bean parts?

answered Apr 4 at 15:46

19 votes

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What are the tradeoffs between NPN vs PNP power transistors?

answered Jan 7 at 7:47

19 votes

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Unphysical voltage in SPICE simulation

answered Sep 27, 2023 at 18:55

19 votes

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Why are several resistors used in series instead of one large resistor?

answered Mar 19, 2023 at 11:30

18 votes

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No ground pour in SMPS PCB?

answered Mar 30, 2023 at 21:20

18 votes

Aluminum bus bars connection to PCB

answered Jan 12, 2023 at 11:45

18 votes

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Is a 100 Ω/1 nF RC low-pass filter enough to protect a microcontroller I/O pin from ESD?

answered Dec 23, 2023 at 11:17

16 votes

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Constant Voltage Spikes in a DC-DC Switching Regulator

answered Aug 7, 2023 at 3:02

16 votes

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How important is a "no reflection" strategy for 1 Hz systems?

answered Aug 9 at 19:19

16 votes

Which signals (Wi-Fi, mobile phone, and GPS) can reliably be blocked by aluminum foil?

answered May 26 at 0:43

14 votes

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Will this short-circuit protection circuit work?

answered Aug 5 at 12:44

14 votes

Will "universal" SMPS work at any voltage in the range, even DC?

answered Sep 12 at 22:52

14 votes

Fuse at 250 volts versus fuse at 12 volts

answered Aug 17, 2023 at 4:44

14 votes

Why do these two sets of seemingly identical capacitors behave differently?

answered Mar 20, 2023 at 23:52

14 votes

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How would an SMPS made using a 555 timer compare with one made with a dedicated controller?

answered Apr 20, 2023 at 7:11

14 votes

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Why not always use a higher millicandela (MCD) rated LED?

answered Jun 21, 2022 at 20:35

14 votes

Why is there a transformer in a radio receiver?

answered Sep 1, 2022 at 16:14

13 votes

Do 50 Ω signal generators have a series resistor or not?

answered Dec 19, 2022 at 13:24

Stack Exchange Network

1,426 Answers

Why do capacitors have less energy density than batteries?

Is there a way to use any communication without a CPU?

How are USB-C cables so thin?

Can two BJT transistors work as a full bridge rectifier?

How should I optimize I2C communication over a 10 to 25 meter cable?

Is my PCB design good or really bad?

How can tiny MOSFETs be rated for relatively high current?

Why do microcontrollers always need external CAN tranceiver?

Why is my super-capacitor self-discharging so fast?

Impedance matching on RF PCB

Is twisting a single ended signal with its own GND really useful?

Are there still practical modern uses for large through-hole resistors?

Who is the main manufacturer of jelly bean parts?

What are the tradeoffs between NPN vs PNP power transistors?

Unphysical voltage in SPICE simulation

Why are several resistors used in series instead of one large resistor?

No ground pour in SMPS PCB?

Aluminum bus bars connection to PCB

Is a 100 Ω/1 nF RC low-pass filter enough to protect a microcontroller I/O pin from ESD?

Constant Voltage Spikes in a DC-DC Switching Regulator

How important is a "no reflection" strategy for 1 Hz systems?

Which signals (Wi-Fi, mobile phone, and GPS) can reliably be blocked by aluminum foil?

Will this short-circuit protection circuit work?

Will "universal" SMPS work at any voltage in the range, even DC?

Fuse at 250 volts versus fuse at 12 volts

Why do these two sets of seemingly identical capacitors behave differently?

How would an SMPS made using a 555 timer compare with one made with a dedicated controller?

Why not always use a higher millicandela (MCD) rated LED?

Why is there a transformer in a radio receiver?

Do 50 Ω signal generators have a series resistor or not?