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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.

224 posts · Subscribe
Activity Age Score Random
60%
+1 −0
digital multimeter display count range

1 answer  ·  posted over 1 year ago by Pacifist‭  ·  last activity over 1 year ago by Olin Lathrop‭

ddm adc display count
57%
+2 −1
How can I debug, (and eventually fix) this Roomba PCB? [closed]

1 answer  ·  posted over 1 year ago by dustytrash‭  ·  edited over 1 year ago by dustytrash‭

errors battery
66%
+2 −0
Cleaning flux out of USB connectors after soldering

1 answer  ·  posted over 1 year ago by Kranulis‭  ·  edited over 1 year ago by Lundin‭

PCB smd soldering flux
50%
+1 −1
High Power Switch - High Side vs. Low Side Switching

2 answers  ·  posted over 1 year ago by 2kind‭  ·  last activity over 1 year ago by Olin Lathrop‭

MOSFET switching
60%
+1 −0
Bit-rate vs Baud-rate

3 answers  ·  posted over 1 year ago by Giga-Byte‭  ·  last activity over 1 year ago by Canina‭

baudrate bit-rate
50%
+1 −1
What is the role of the differential amplifier in a delta sigma converter?

1 answer  ·  posted over 1 year ago by Pacifist‭  ·  edited over 1 year ago by Olin Lathrop‭

Analog differential-amplifier converter digital
60%
+1 −0
What is the difference between differential amplifier and differentiator?

3 answers  ·  posted over 1 year ago by Pacifist‭  ·  last activity over 1 year ago by Circuit fantasist‭

amplifier differentiator differntial
66%
+2 −0
How to estimate time of completion while developing an electronic product?

5 answers  ·  posted over 1 year ago by aditya98‭  ·  last activity over 1 year ago by TonyStewart‭

product-estimation-time
66%
+2 −0
Driving LED with NPN transistor from I/O pin

3 answers  ·  posted almost 2 years ago by eric‭  ·  last activity over 1 year ago by coquelicot‭

led-drive-circuit transistor-switch
71%
+3 −0
Using FET based followers and design rules

5 answers  ·  posted over 1 year ago by coquelicot‭  ·  last activity over 1 year ago by TonyStewart‭

transistor follower field-effect-transistor
66%
+2 −0
Understanding the s11 and s21 coefficients of a microstrip line with resistor to ground

2 answers  ·  posted over 1 year ago by coquelicot‭  ·  last activity over 1 year ago by coquelicot‭

microstrip scattering-coefficient
57%
+2 −1
ESD Protection - Differential Amplifier

3 answers  ·  posted over 1 year ago by 2kind‭  ·  last activity over 1 year ago by Nick Alexeev‭

op-amp esd-protection Circuit
71%
+3 −0
Why is the ACK (acknowledge bit) in the CAN bus frames dominant? What could have been the rationale behind that design decision?

2 answers  ·  posted over 1 year ago by Nick Alexeev‭  ·  last activity over 1 year ago by Olin Lathrop‭

can-bus
66%
+2 −0
De-bouncing input signals?

2 answers  ·  posted over 1 year ago by Olin Lathrop‭  ·  last activity over 1 year ago by Circuit fantasist‭

de-bouncing
61%
+6 −3
weak WiFi when microwave is running [closed]

1 answer  ·  posted over 1 year ago by msh210‭  ·  last activity over 1 year ago by .                                                .‭

Wireless
71%
+3 −0
Why there is a body diode in mosfets?

3 answers  ·  posted over 1 year ago by aditya98‭  ·  last activity over 1 year ago by Nick Alexeev‭

MOSFET body-diode
42%
+1 −2
Usage of modern active building blocks [closed]

0 answers  ·  posted over 1 year ago by LvW‭  ·  edited over 1 year ago by LvW‭

amplifier
71%
+3 −0
Why Ib=const. for BJT output characteristics Ic=f(Vce)

4 answers  ·  posted over 1 year ago by LvW‭  ·  edited over 1 year ago by LvW‭

transistor
60%
+1 −0
More accuracy from multiple resistors in series or parallel?

2 answers  ·  posted over 1 year ago by Olin Lathrop‭  ·  last activity over 1 year ago by coquelicot‭

error-tolerance
77%
+5 −0
Rules and guidelines for drawing schematics?

1 answer  ·  posted over 1 year ago by Olin Lathrop‭  ·  edited over 1 year ago by Olin Lathrop‭

schematic
60%
+1 −0
High pass filter design

3 answers  ·  posted over 1 year ago by coquelicot‭  ·  last activity over 1 year ago by a concerned citizen‭

filter
66%
+2 −0
Purpose of emitter resistor in a common collector amplifier

4 answers  ·  posted over 1 year ago by jm567‭  ·  last activity over 1 year ago by LvW‭

transistor amplifier emitter
84%
+9 −0
How to calculate pullup resistor value for pushbutton?

2 answers  ·  posted almost 2 years ago by Olin Lathrop‭  ·  last activity over 1 year ago by Circuit fantasist‭

pull-up-resistor
66%
+2 −0
Emitter Bypass Capacitor in a CE Amplifier

2 answers  ·  posted over 1 year ago by jm567‭  ·  last activity over 1 year ago by Circuit fantasist‭

bypass amplifier
50%
+0 −0
General Questions Regarding FPGAs [closed]

0 answers  ·  posted over 1 year ago by jm567‭  ·  closed over 1 year ago by Olin Lathrop‭

FPGA Wireless
50%
+2 −2
Filtering the high frequency noise in switching PSU

1 answer  ·  posted over 1 year ago by coquelicot‭  ·  edited over 1 year ago by coquelicot‭

PSU switching
60%
+1 −0
Control circuit for Power Converters

2 answers  ·  posted over 1 year ago by aditya98‭  ·  last activity over 1 year ago by Olin Lathrop‭

microcontroller PMIC power-converter
80%
+6 −0
High Speed Design - Which grounding strategy to choose?

1 answer  ·  posted over 1 year ago by 2kind‭  ·  last activity over 1 year ago by Olin Lathrop‭

grounding high-speed
66%
+2 −0
Filter Impedance Consideration

2 answers  ·  posted over 1 year ago by jm567‭  ·  last activity over 1 year ago by Olin Lathrop‭

impedance-matching filter
50%
+1 −1
I have to choose: Arduino or Raspberry pi.

2 answers  ·  posted over 1 year ago by coquelicot‭  ·  last activity over 1 year ago by Olin Lathrop‭

microcontroller digital-logic-circuit
60%
+1 −0
Mixers and Audio Extraction in a DCR Architecture

1 answer  ·  posted over 1 year ago by jm567‭  ·  edited over 1 year ago by jm567‭

RF Mixer
66%
+2 −0
Design rules for oamp bootstrap

2 answers  ·  posted over 1 year ago by coquelicot‭  ·  last activity over 1 year ago by coquelicot‭

oamp
60%
+1 −0
How to define Vsat for MOSFET as a switch?

2 answers  ·  posted over 1 year ago by Kranulis‭  ·  last activity over 1 year ago by Andy aka‭

boost-converter MOSFET
60%
+1 −0
Design considerations when using a wireless charging battery pack

1 answer  ·  posted over 1 year ago by Kranulis‭  ·  last activity over 1 year ago by Olin Lathrop‭

battery
60%
+1 −0
What is the significance of push-pull and open drain controls in circuits?

2 answers  ·  posted over 1 year ago by aditya98‭  ·  last activity over 1 year ago by DrBearEE‭

open-drain push-pull
66%
+2 −0
How do I design a boost converter? What are the basics I should know?

1 answer  ·  posted almost 2 years ago by Andy aka‭  ·  last activity over 1 year ago by Andy aka‭

boost-converter
60%
+1 −0
Antenna Feed Line Question

1 answer  ·  posted over 1 year ago by jm567‭  ·  last activity over 1 year ago by Olin Lathrop‭

Antenna RF
50%
+0 −0
MAX809's Irregularity Depending on Load

1 answer  ·  posted over 1 year ago by timelyfiasco‭  ·  edited over 1 year ago by timelyfiasco‭

IC
60%
+1 −0
Doubt regarding loading.

1 answer  ·  posted over 1 year ago by aditya98‭  ·  last activity over 1 year ago by Olin Lathrop‭

load loading-effect
60%
+1 −0
Pi-Filter for EMC

2 answers  ·  posted almost 2 years ago by zeke‭  ·  last activity over 1 year ago by Lundin‭

EMC Pi-Filter
50%
+0 −0
LC Filter and Capacitor Considerations [closed]

0 answers  ·  posted over 1 year ago by jm567‭  ·  closed over 1 year ago by Olin Lathrop‭

Pi-Filter LC-network electrolytic-capacitor
50%
+0 −0
Current Flow in the OFF Time of a Switching Power Supply

1 answer  ·  posted over 1 year ago by jm567‭  ·  edited over 1 year ago by Olin Lathrop‭

capacitor smps buck
66%
+2 −0
LED with a parallel resistor

1 answer  ·  posted over 1 year ago by zeke‭  ·  last activity over 1 year ago by Olin Lathrop‭

led-drive-circuit
66%
+2 −0
How come the registers in a micro are application specific?

3 answers  ·  posted over 1 year ago by aditya98‭  ·  last activity over 1 year ago by manassehkatz‭

microcontroller register
66%
+2 −0
Why RC toys still operate in 27Mhz band?

2 answers  ·  posted almost 2 years ago by aditya98‭  ·  last activity almost 2 years ago by Olin Lathrop‭

frequency
66%
+2 −0
Bypass Caps and High Frequency Current Return Path

1 answer  ·  posted almost 2 years ago by jm567‭  ·  edited almost 2 years ago by Olin Lathrop‭

Analog alternating-current
71%
+3 −0
4-Layer PCB Routing Question

1 answer  ·  posted almost 2 years ago by jm567‭  ·  edited almost 2 years ago by Olin Lathrop‭

Analog digital-logic-circuit PCB
57%
+2 −1
Constant Current Load Circuit with Op Amp

2 answers  ·  posted almost 2 years ago by timelyfiasco‭  ·  last activity almost 2 years ago by coquelicot‭

op-amp
60%
+1 −0
Complementary transistor pairs - what is the point ?

2 answers  ·  posted almost 2 years ago by coquelicot‭  ·  last activity almost 2 years ago by Olin Lathrop‭

transistor darlington
60%
+1 −0
Darlington or Sziklai configuration - why and when using complementary pairs?

1 answer  ·  posted almost 2 years ago by coquelicot‭  ·  last activity almost 2 years ago by Olin Lathrop‭

transistor darlington
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