User kellogs

9 votes

3 answers

2k views

PCB enclosure tolerances [closed]

asked Nov 9, 2018 at 11:41

6 votes

5 answers

4k views

Relationship between I2C drawn energy / power consumption and data rate

asked Nov 9, 2018 at 14:04

6 votes

2 answers

2k views

using plumber's copper solder as a "solder paste" for SMD components

asked Nov 10, 2017 at 13:44

5 votes

1 answer

327 views

sizing a DC bias RF choke for a differential antenna + PA

asked Apr 22, 2017 at 10:43

5 votes

2 answers

173 views

Load-dump grade TVS diode - datasheets misleading?

asked Oct 6, 2022 at 17:28

4 votes

2 answers

848 views

Current return paths: which of the two is the better design?

asked Mar 16, 2017 at 10:17

4 votes

1 answer

176 views

Small DFN chips come out twisted from the oven

asked Jul 12, 2019 at 14:45

4 votes

5 answers

635 views

Impedance, square waves, and duty cycle

asked Aug 9, 2022 at 12:12

3 votes

2 answers

105 views

Rectifier diode specs not clear

asked Sep 21, 2022 at 16:25

3 votes

1 answer

629 views

Long lines: whether or not to treat PCB traces as RF lines

asked Mar 8, 2017 at 11:33

3 votes

0 answers

835 views

PCB trace caps (a.k.a. finger / interdigital caps) formula

asked Aug 11, 2017 at 22:13

2 votes

1 answer

1k views

adapter between thicker and thinner AWG wires [closed]

asked Mar 28, 2017 at 10:27

2 votes

1 answer

82 views

Overvoltage protection with a mechanical relay

asked Aug 29, 2022 at 23:49

2 votes

2 answers

1k views

Why are pull-up inductors biasing the power amplifier output of radio transmitters chips needed?

asked Sep 20, 2021 at 15:00

2 votes

5 answers

242 views

Capacitors: 200 mOhm ESR @ 100 Hz, attainable?

asked Jun 30, 2020 at 22:23

2 votes

2 answers

762 views

LGA parts and hot air soldering

asked Jan 27, 2019 at 13:55

2 votes

1 answer

351 views

zero-crossing detection: to optocouple or not to optocouple?

asked Feb 27, 2019 at 11:43

2 votes

2 answers

108 views

Relay contact resistance spec off?

asked Aug 26 at 10:02

1 vote

1 answer

38 views

Switching between two frequency BWs at the transmitter

asked Jan 31 at 0:26

1 vote

1 answer

92 views

Strange capacitor charge / discharge oscillations - SPICE

asked Aug 12 at 18:51

1 vote

1 answer

45 views

51 V clamp on load dump; will this IC survive?

asked Aug 25 at 14:45

1 vote

1 answer

139 views

Does this criss-crossed GND plane look like it will function properly?

asked Apr 6, 2019 at 13:02

1 vote

1 answer

113 views

The purpose of a 10 uF cap for the MMC5883MA magnetic sensor

asked Oct 19, 2020 at 19:23

1 vote

0 answers

92 views

oven rework - possible culprit?

asked Nov 4, 2020 at 11:29

1 vote

1 answer

219 views

STM32 Nucleo board, "crosstalk" between switch buttons

asked Jun 3, 2022 at 14:20

1 vote

1 answer

219 views

Automotive ISO 7637-2 transients and LT4363 surge protector chip

asked Sep 18, 2022 at 20:36

1 vote

1 answer

88 views

Tapping into a 5.1V transformer for a zero-crossing detection circuit

asked Feb 26, 2019 at 17:37

1 vote

1 answer

281 views

Stability of crystal and crystal-less oscillator transmitters

asked Feb 15, 2017 at 15:13

1 vote

2 answers

192 views

vibration sensing circuit doing so great

asked Oct 16, 2017 at 8:48

1 vote

0 answers

168 views

PCB hanging upside down in its enclosure

asked Dec 7, 2018 at 21:28

Stack Exchange Network

91 Questions

PCB enclosure tolerances [closed]

Relationship between I2C drawn energy / power consumption and data rate

using plumber's copper solder as a "solder paste" for SMD components

sizing a DC bias RF choke for a differential antenna + PA

Load-dump grade TVS diode - datasheets misleading?

Current return paths: which of the two is the better design?

Small DFN chips come out twisted from the oven

Impedance, square waves, and duty cycle

Rectifier diode specs not clear

Long lines: whether or not to treat PCB traces as RF lines

PCB trace caps (a.k.a. finger / interdigital caps) formula

adapter between thicker and thinner AWG wires [closed]

Overvoltage protection with a mechanical relay

Why are pull-up inductors biasing the power amplifier output of radio transmitters chips needed?

Capacitors: 200 mOhm ESR @ 100 Hz, attainable?

LGA parts and hot air soldering

zero-crossing detection: to optocouple or not to optocouple?

Relay contact resistance spec off?

Switching between two frequency BWs at the transmitter

Strange capacitor charge / discharge oscillations - SPICE

51 V clamp on load dump; will this IC survive?

Does this criss-crossed GND plane look like it will function properly?

The purpose of a 10 uF cap for the MMC5883MA magnetic sensor

oven rework - possible culprit?

STM32 Nucleo board, "crosstalk" between switch buttons

Automotive ISO 7637-2 transients and LT4363 surge protector chip

Tapping into a 5.1V transformer for a zero-crossing detection circuit

Stability of crystal and crystal-less oscillator transmitters

vibration sensing circuit doing so great

PCB hanging upside down in its enclosure