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Q&A

General Q&A about the design and function of electronic systems, electric power systems and infrastructure, their theory, and tools specific to those fields. Read these guidelines before posting.

60%
+1 −0
SPI modes difference

2 answers  ·  posted 5mo ago by FrankLEE‭  ·  last activity 5mo ago by DavidCary‭

spi
66%
+2 −0
Diode like a frequency mixer

1 answer  ·  posted 5mo ago by MissMulan‭  ·  edited 5mo ago by MissMulan‭

71%
+3 −0
75%
+4 −0
66%
+2 −0
66%
+4 −1
Motor Controller - What might be the purpose of these resistors?

4 answers  ·  posted 6mo ago by 2kind‭  ·  last activity 5mo ago by DSI‭

60%
+1 −0
60%
+1 −0
Adding resistance to varactor circuit

2 answers  ·  posted 6mo ago by MissMulan‭  ·  last activity 6mo ago by Andy aka‭

50%
+0 −0
Tunnel current equation

0 answers  ·  posted 6mo ago by MissMulan‭

60%
+1 −0
Division of binary numbers logic circuit

2 answers  ·  posted 6mo ago by MissMulan‭  ·  last activity 6mo ago by Olin Lathrop‭

57%
+2 −1
75%
+4 −0
What is this metal panel under power lines?

1 answer  ·  posted 6mo ago by Olin Lathrop‭  ·  last activity 6mo ago by DSI‭

71%
+3 −0
Battery voltage: to boost or to connect in series.

1 answer  ·  posted 7mo ago by DSI‭  ·  last activity 6mo ago by Olin Lathrop‭

16%
+0 −8
HOW TO OPTIMIZE POWER USAGE FOR HOME [closed]

0 answers  ·  posted 6mo ago by ElectroRat‭  ·  edited 6mo ago by Olin Lathrop‭

25%
+0 −4
Electric circuit with antenna

1 answer  ·  posted 6mo ago by MissMulan‭  ·  last activity 6mo ago by Olin Lathrop‭

66%
+2 −0
50%
+0 −0
JFET equation of current

0 answers  ·  posted 6mo ago by MissMulan‭

28%
+0 −3
60%
+1 −0
Extract DC component of mixed signal

1 answer  ·  posted 6mo ago by MissMulan‭  ·  last activity 6mo ago by Andy aka‭

42%
+1 −2
Critically damped oscillation issue

2 answers  ·  posted 7mo ago by MissMulan‭  ·  last activity 7mo ago by a concerned citizen‭

71%
+3 −0
Capacitor in 2nd stage of opamp

1 answer  ·  posted 7mo ago by MissMulan‭  ·  last activity 7mo ago by Olin Lathrop‭

60%
+1 −0
Unexpected phase shift in results

2 answers  ·  posted 7mo ago by MissMulan‭  ·  last activity 7mo ago by coquelicot‭

71%
+3 −0
50%
+1 −1
Current and voltage in AC circuits without impedance

1 answer  ·  posted 8mo ago by MissMulan‭  ·  last activity 8mo ago by Olin Lathrop‭

60%
+1 −0
Contactor control - Higher voltage PWM

2 answers  ·  posted 8mo ago by 2kind‭  ·  last activity 8mo ago by coquelicot‭

77%
+5 −0
Capacitor ESR vs. Impedance

3 answers  ·  posted 9mo ago by 2kind‭  ·  last activity 8mo ago by TonyStewart‭

71%
+3 −0
Why are antenna PCB traces square instead of rounded?

2 answers  ·  posted 9mo ago by Kranulis‭  ·  last activity 9mo ago by TonyStewart‭

62%
+3 −1
Microwave oven interfering with WiFi on the 2.4GHz band

2 answers  ·  posted over 1 year ago by Lundin‭  ·  last activity 9mo ago by TonyStewart‭

60%
+1 −0
Estimating the input capacitance of an BLDC motor controller

2 answers  ·  posted 9mo ago by 2kind‭  ·  last activity 9mo ago by TonyStewart‭

30%
+1 −5
Is this AD8307 fake?

1 answer  ·  posted 9mo ago by coquelicot‭  ·  edited 9mo ago by coquelicot‭

71%
+3 −0
71%
+3 −0
How could you model a 10M/100M Ethernet PHY architecture?

1 answer  ·  posted 10mo ago by DavidE‭  ·  last activity 10mo ago by Olin Lathrop‭

66%
+6 −2
Why is the resistance of water so high?

3 answers  ·  posted 10mo ago by Kranulis‭  ·  last activity 10mo ago by Olin Lathrop‭

75%
+4 −0
Can you call an IC pin 'N.C' if it has hidden functionality?

1 answer  ·  posted 10mo ago by Kranulis‭  ·  last activity 10mo ago by Olin Lathrop‭

IC
60%
+1 −0
Max V/Hz value for motor

2 answers  ·  posted 10mo ago by 2kind‭  ·  last activity 10mo ago by Olin Lathrop‭

83%
+8 −0
Why 3V3 instead of 3V?

2 answers  ·  posted 12mo ago by 2kind‭  ·  last activity 10mo ago by Mu3‭

66%
+2 −0
Is there a tool or trick for bending TO220 leads

1 answer  ·  posted 10mo ago by Pete W‭  ·  edited 10mo ago by Lundin‭

66%
+2 −0
Filter RF Harmonics With Additional PI Network

2 answers  ·  posted 10mo ago by leroy105‭  ·  last activity 10mo ago by leroy105‭

RF
66%
+2 −0
60%
+1 −0
Why is it is always power consumption or power delivered more in usage?

3 answers  ·  posted 10mo ago by aditya98‭  ·  last activity 10mo ago by Andy aka‭

60%
+1 −0
555 timer, PAM with digital signal

1 answer  ·  posted 11mo ago by mrwavelets‭  ·  last activity 11mo ago by coquelicot‭

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