User s3c

16 votes

4 answers

10k views

Feasibility of PCB edge plating?

asked Aug 15, 2012 at 11:46

14 votes

3 answers

18k views

Low current battery monitoring

battery-charging voltage-divider lipo monitor charge

asked Apr 5, 2013 at 7:56

10 votes

2 answers

1k views

Is this normal Buck Regulator behaviour?

buck voltage-regulator load

asked Jun 18, 2012 at 17:02

6 votes

1 answer

380 views

Any pitfalls when going from two to four layer PCB?

pcb pcb-design

asked Aug 21, 2012 at 22:05

5 votes

1 answer

4k views

Dirt cheap NiCad charger

battery-charging charging charger

asked Oct 24, 2011 at 10:43

4 votes

3 answers

9k views

How are RF signals amplified?

rf amplifier

asked Jun 12, 2012 at 20:54

3 votes

5 answers

7k views

How to power a GSM Modem from a Li-Po battery?

batteries gsm buck lipo boost

asked May 2, 2012 at 15:18

3 votes

7 answers

5k views

Dedicated 6 channel PWM controller

pwm

asked Oct 17, 2011 at 14:36

3 votes

4 answers

590 views

Design vs reality and what to do when they differ

design theory

asked May 14, 2014 at 8:00

2 votes

3 answers

1k views

BJT amplifier gain rolloff

transistors bjt gain

asked May 23, 2014 at 8:48

2 votes

2 answers

2k views

USB port and bench power supply ground difference

usb ground ground-loop

asked Jun 5, 2012 at 12:35

2 votes

2 answers

3k views

Recommendations for analog tri-state buffer?

buffer tri-state

asked Jan 5, 2012 at 18:15

2 votes

2 answers

1k views

USB, LiPo and External power

power-supply battery-charging lipo

asked Oct 15, 2013 at 4:57

1 vote

1 answer

2k views

Bus and self powered device using FTDI FT230X

usb battery-charging ftdi

asked May 6, 2014 at 12:33

1 vote

1 answer

1k views

LC filter for Vref and Vadc

adc filter passive-networks

asked Jan 17, 2012 at 10:40

1 vote

0 answers

315 views

Good compact antenna for FM audio transmitter module?

antenna transmitter fm

asked Jul 8, 2012 at 16:34

1 vote

1 answer

987 views

Tuned circuit value switching

rfid passive-networks resonance

asked Jun 6, 2014 at 11:45

0 votes

3 answers

287 views

PCB Trace detection

smart-card intercept

asked Aug 22, 2013 at 13:27

0 votes

1 answer

261 views

MCP73834 disintegrates after a couple of hours

batteries battery-charging charging lipo

asked May 19, 2012 at 16:39

0 votes

1 answer

161 views

Undriven element when connecting coax to ground?

rf balanced unbalanced

asked Sep 25, 2015 at 13:29

0 votes

1 answer

263 views

SAW resonator oscillator operating principle

oscillator transmitter resonator

asked Mar 8, 2021 at 9:15

-1 votes

1 answer

347 views

Multi-stage passive filter design [closed]

rf filter passive-networks passive-filter

asked Dec 29, 2014 at 20:56

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22 Questions

Feasibility of PCB edge plating?

Low current battery monitoring

Is this normal Buck Regulator behaviour?

Any pitfalls when going from two to four layer PCB?

Dirt cheap NiCad charger

How are RF signals amplified?

How to power a GSM Modem from a Li-Po battery?

Dedicated 6 channel PWM controller

Design vs reality and what to do when they differ

BJT amplifier gain rolloff

USB port and bench power supply ground difference

Recommendations for analog tri-state buffer?

USB, LiPo and External power

Bus and self powered device using FTDI FT230X

LC filter for Vref and Vadc

Good compact antenna for FM audio transmitter module?

Tuned circuit value switching

PCB Trace detection

MCP73834 disintegrates after a couple of hours

Undriven element when connecting coax to ground?

SAW resonator oscillator operating principle

Multi-stage passive filter design [closed]