User John Birckhead - Electrical Engineering Stack Exchange

John Birckhead

Member for 7 years, 8 months
Last seen this week

welbor.com
Houston, Texas, United States

494 Answers

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16 votes

Accepted

What's the advantage of lead-free solder containing silver?

answered Jun 22, 2016 at 13:49

15 votes

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Why does this metallic magnetic core have so little core losses up until 100s of kHz?

answered Jan 5 at 14:33

13 votes

Is there an ideal PWM frequency for DC brush motors?

answered Jun 22, 2016 at 15:35

12 votes

Why isn't there a non-conducting core wire for high-frequency coil applications

answered Feb 28, 2019 at 19:18

10 votes

No ground pour in SMPS PCB?

answered Mar 30 at 18:27

9 votes

Is it safe to sleep in the same room with a car battery?

answered Jul 6, 2017 at 21:28

7 votes

Accepted

How to estimate the required PCB surface area for SMD power resistors

answered Jun 22, 2016 at 21:14

7 votes

Accepted

Why does this crystal oscillator have a window?

answered Nov 27, 2018 at 14:52

7 votes

Why is there so much fear surrounding LiPo batteries?

answered Jan 12, 2018 at 21:04

7 votes

CD4017 resetting itself when load connected

answered Nov 17, 2022 at 19:47

7 votes

Accepted

What is the difference between a droop and slip?

answered Jun 21, 2021 at 18:58

7 votes

What's wrong with my pressure sensing circuit?

answered Apr 4 at 18:19

6 votes

Why is the P-channel MOSFET in my H-bridge burning?

answered Apr 4 at 14:38

6 votes

Accepted

What are my options for packaging a WLCSP IC as a DIP?

answered Apr 19, 2021 at 18:52

6 votes

Running DSPIC33FJ64GP802 at high temperature

answered Jul 27, 2018 at 13:37

6 votes

Accepted

Magnetic Field around step-down converters

answered Mar 4, 2019 at 19:21

6 votes

MPLAB 8.9 won't launch

answered May 31, 2016 at 16:18

5 votes

Accepted

Snubber Circuit working

answered Jul 6, 2017 at 13:12

5 votes

Accepted

Opamp Unity gain follower stability

answered Jun 27, 2017 at 18:05

5 votes

Is one big via better than multiple small vias when changing power traces and ground between layers?

answered Sep 16, 2019 at 22:16

5 votes

Buffer OPAMP feedback resistor

answered Sep 11, 2018 at 16:36

5 votes

Accepted

PSC motor behavior when changing run capacitor value

answered Jul 31, 2017 at 19:41

5 votes

Accepted

CRC calculations by hand do not match online calculator

answered Apr 9, 2021 at 20:48

5 votes

Accepted

Mystery SOT-143 Part on Magnetometer

answered Nov 10, 2020 at 20:40

5 votes

MCP3561 Sampling Interval

answered Nov 12, 2020 at 22:07

5 votes

Accepted

Reducing Residual Magnetism in Electromagnets

answered Jun 3, 2021 at 15:22

4 votes

Grinding on PI/PID controller at specific PWM

answered Jun 22, 2021 at 19:34

4 votes

What does "CA" stand for on a lead acid rechargable battery data sheet

answered Jul 23, 2021 at 20:02

4 votes

Severe ringing when using high-level gate driver (HIP4081)

answered Nov 18, 2020 at 21:02

4 votes

"Circuits" - A convenient teaching tool?

answered Nov 16, 2022 at 14:33

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