User jose.angel.jimenez

23 votes

Are UV LEDs really dangerous?

answered Aug 6, 2014 at 11:20

18 votes

Electronic aspects of iPhone 3.5mm audio output

answered Aug 31, 2013 at 13:54

14 votes

Accepted

What is a safe max. discharge rate for a 12V lead acid battery?

answered Sep 26, 2014 at 13:40

13 votes

Accepted

Negative feedback capacitor in Op-Amp comparator circuit

answered Oct 5, 2014 at 8:50

11 votes

Accepted

Ferrite bead vs common mode choke

answered Dec 6, 2015 at 14:37

11 votes

Accepted

Inductor selection for obtaining a noiseless analog power rail

answered Sep 24, 2014 at 18:33

10 votes

Accepted

What is the name/type of this DC power connector?

answered Sep 13, 2014 at 11:33

8 votes

Accepted

NFC reader long range antenna

answered Feb 18, 2015 at 8:36

4 votes

How can I view USB traffic on an oscilloscope?

answered Dec 13, 2015 at 13:19

4 votes

Linear regulator (L7805CV) outputting 5.8V

answered Sep 19, 2014 at 7:47

3 votes

Accepted

Why is the Vbe threshold of a Si NPN transistor 0.7V and not -0.7V?

answered Sep 21, 2014 at 8:37

3 votes

Why is this BJT not going into saturation?

answered Oct 23, 2013 at 15:54

3 votes

Accepted

BJT vs MOSFET for very low power flyback converter

answered Oct 23, 2013 at 16:20

3 votes

DC boost converter and Ohm's Law

answered Sep 23, 2014 at 11:35

2 votes

Difference between capacitors of same value but different sizes

answered Sep 24, 2014 at 12:37

2 votes

What are some smallest, cheapest microcontrollers with USB built in?

answered Aug 22, 2015 at 12:44

2 votes

Signs of overheated smd chip

answered Dec 10, 2015 at 16:08

2 votes

Using a microcomputer in the drive circuit of a piezo buzzer

answered May 21, 2020 at 20:19

2 votes

What's the difference between small signal bipolar junction transistors (BJTs) marketed as switches vs. amplifiers?

answered Oct 22, 2013 at 18:38

2 votes

Accepted

Measure battery voltage

answered Aug 7, 2014 at 16:06

2 votes

Accepted

Sending multiple channels with bluetooth

answered Oct 24, 2014 at 13:51

2 votes

Why do microcontrollers have so little RAM?

answered Oct 28, 2014 at 11:40

1 vote

Is there any current gain in a FET amplifier?

answered Sep 21, 2014 at 9:24

1 vote

Accepted

Linear regulator LM1084 5.0V capacitors choice

answered Sep 19, 2014 at 19:04

1 vote

Is a ceramic heater good to use in an etching process?

answered Aug 6, 2014 at 12:06

1 vote

PCB prototyping with Presensitized copper boards

answered Sep 25, 2013 at 23:25

0 votes

is any other technology than semiconductor transistors or vacuum tubes that can be used as active devices?

answered Dec 12, 2015 at 10:54

0 votes

MP1584 DC/DC step down converter cause whine in audio, how to avoid?

answered Dec 12, 2015 at 22:42

0 votes

Accepted

Sensing power supply - sensing after the on/off switch

answered Dec 8, 2015 at 20:48

Stack Exchange Network

29 Answers

Are UV LEDs really dangerous?

Electronic aspects of iPhone 3.5mm audio output

What is a safe max. discharge rate for a 12V lead acid battery?

Negative feedback capacitor in Op-Amp comparator circuit

Ferrite bead vs common mode choke

Inductor selection for obtaining a noiseless analog power rail

What is the name/type of this DC power connector?

NFC reader long range antenna

How can I view USB traffic on an oscilloscope?

Linear regulator (L7805CV) outputting 5.8V

Why is the Vbe threshold of a Si NPN transistor 0.7V and not -0.7V?

Why is this BJT not going into saturation?

BJT vs MOSFET for very low power flyback converter

DC boost converter and Ohm's Law

Difference between capacitors of same value but different sizes

What are some smallest, cheapest microcontrollers with USB built in?

Signs of overheated smd chip

Using a microcomputer in the drive circuit of a piezo buzzer

What's the difference between small signal bipolar junction transistors (BJTs) marketed as switches vs. amplifiers?

Measure battery voltage

Sending multiple channels with bluetooth

Why do microcontrollers have so little RAM?

Is there any current gain in a FET amplifier?

Linear regulator LM1084 5.0V capacitors choice

Is a ceramic heater good to use in an etching process?

PCB prototyping with Presensitized copper boards

is any other technology than semiconductor transistors or vacuum tubes that can be used as active devices?

MP1584 DC/DC step down converter cause whine in audio, how to avoid?

Sensing power supply - sensing after the on/off switch