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jpc
  • Member for 12 years, 6 months
  • Last seen more than a week ago
62 votes
7 answers
55k views

Is it true that a SD/MMC Card does wear levelling with its own controller?

  • 933
29 votes
10 answers
22k views

LM394 is obsolete. What is the new standard log amp circuit?

  • 19.8k
29 votes
5 answers
43k views

Is it safe to drive a MOSFET from an output pin of a microcontroller?

  • 4,530
28 votes
2 answers
13k views

Connectorless USB on a PCB

  • 3,685
26 votes
10 answers
3k views

What PCB fabrication methods for *prototypes* are used by professional engineering departments today?

25 votes
5 answers
9k views

Do I need to pay royalties to the SD card people if my device "just happens" to be compatible with SD cards? [closed]

  • 31.1k
24 votes
1 answer
16k views

Ferrite or iron powder? How do I tell what an unknown core is made of?

  • 17.9k
22 votes
3 answers
4k views

Any published designs for time-of-flight laser distance measurement

19 votes
5 answers
33k views

Best pattern for WFI (wait-for-interrupt) on Cortex (ARM) microcontrolers

  • 44.8k
18 votes
4 answers
12k views

How to use measured step response to tune control system

  • 8,097
17 votes
1 answer
16k views

How important is self-resonant frequency for an inductor when used in a fast (~3MHz) buck SMPS?

  • 31.1k
16 votes
7 answers
56k views

How to do circuit analysis using Matlab?

  • 22.9k
16 votes
4 answers
9k views

Building a passive ethernet hub with anti-parallel diodes

16 votes
6 answers
23k views

How to plot current in ngspice?

  • 879
14 votes
6 answers
9k views

Why do real-time clock chips use BCD

  • 44.8k
13 votes
8 answers
6k views

Functional Programming with MCU(s)

  • 3,720
13 votes
4 answers
1k views

Do 4-bit CPUs still outsell 32-bit CPUs in unit volume?

  • 17.1k
12 votes
5 answers
7k views

Why would a power supply unit with insulating case and galvanic separation need a grounded power cord?

  • 12.2k
12 votes
6 answers
2k views

Replacement for Queues in RTOS

  • 3,185
11 votes
6 answers
6k views

Inductive Charging

11 votes
5 answers
35k views

How do I calculate the thermal resistance of aluminum flat stock

  • 941
11 votes
4 answers
3k views

Different ways to digitally control an adjustable SMPS

  • 1,060
11 votes
2 answers
3k views

What is the use of transformers with 3 pairs of wires?

  • 22.9k
11 votes
12 answers
10k views

Moderately priced 6-layer PCB fab?

  • 13.9k
10 votes
2 answers
12k views

Impedance of an Edge-Coupled Coplanar Waveguide With Ground

  • 305
10 votes
8 answers
3k views

Is there a Scratch-like Arduino IDE?

9 votes
3 answers
4k views

SMPS PCB Design Critic

9 votes
5 answers
3k views

High Resolution ADC for Noisy Sensors in Variable Conditions

  • 1,334
8 votes
3 answers
2k views

BSD style Open Source alternatives to CMSIS?

  • 2,335
8 votes
5 answers
14k views

Oscilloscope using laptop microphone input...is that possible?

  • 821