User johnfound

24 votes

Accepted

Why don't relays incorporate flyback diodes?

answered Feb 19, 2014 at 7:29

22 votes

What is Copper Thieving and why use it?

answered Oct 16, 2013 at 20:20

17 votes

BJT in Reverse Active Mode of Operation

answered Oct 29, 2013 at 9:28

13 votes

Accepted

Reasons not to fill unused board area with power planes instead of ground planes?

answered Oct 22, 2013 at 17:01

12 votes

Accepted

AVR: overclocking ADC

answered Oct 24, 2013 at 17:29

12 votes

Accepted

Low power, seven segment display

answered Oct 11, 2013 at 9:10

10 votes

What are the smallest microcontrollers?

answered Oct 9, 2013 at 0:46

9 votes

Accepted

Can the terminal voltage of a lead acid battery be reversed?

answered Oct 20, 2013 at 14:38

9 votes

Accepted

How can this FM transmitter modulate?

answered Oct 21, 2013 at 19:13

9 votes

How can I measure the frequency of a watch crystal using my oscilloscope?

answered Nov 4, 2013 at 8:48

8 votes

How to build an interesting XOR circuit with my child's electronics kit

answered Oct 21, 2013 at 21:47

6 votes

Driving high and low inputs of a MOSFET driver with a single PWM signal

answered Nov 6, 2013 at 22:10

6 votes

Accepted

Networking options for multi-node Star topology

answered Oct 20, 2013 at 14:57

6 votes

Accepted

Best way to reduce battery consumption for LED device?

answered Oct 14, 2013 at 7:08

6 votes

Accepted

AVR:LDI instruction

answered Oct 9, 2013 at 15:57

6 votes

Why wavelength is not measured with a unit of time?

answered Oct 4, 2013 at 7:53

5 votes

How do i find nichrome temperature

answered Oct 6, 2013 at 10:19

5 votes

Accepted

How is a sine wave created by an oscillator?

answered Oct 13, 2013 at 10:19

5 votes

Can two devices share a decoupling capacitor?

answered Oct 14, 2013 at 8:06

5 votes

Does opto-isolation matter when there's only one power supply?

answered Oct 15, 2013 at 20:53

5 votes

What is wrong with this simple SMPS?

answered Nov 25, 2013 at 17:51

5 votes

Accepted

Why have atx power supplies need selector voltage?

answered Nov 7, 2013 at 19:16

5 votes

Accepted

Any simple short range metal detector?

answered Nov 8, 2013 at 9:25

5 votes

Accepted

Electrically conductive thermal paste

answered Oct 21, 2013 at 11:19

5 votes

How does flux work, chemically, and what are the products?

answered Oct 24, 2013 at 20:08

5 votes

Using an Opto-Isolator to change an Op-Amp's Amplification

answered Oct 31, 2013 at 8:42

5 votes

Accepted

Calculating LED current flow in a parallel circuit

answered Nov 5, 2013 at 11:23

4 votes

Accepted

Using ATtiny ADC with a system clock of 32.768 kHz

answered Nov 1, 2013 at 17:21

4 votes

Accepted

Frequency of astable multivibrator built with inverters (NOT gates)

answered Nov 4, 2013 at 17:48

4 votes

Accepted

Which part of PCB circle for capacitor is positive?

answered Nov 4, 2013 at 12:51

Stack Exchange Network

127 Answers

Why don't relays incorporate flyback diodes?

What is Copper Thieving and why use it?

BJT in Reverse Active Mode of Operation

Reasons not to fill unused board area with power planes instead of ground planes?

AVR: overclocking ADC

Low power, seven segment display

What are the smallest microcontrollers?

Can the terminal voltage of a lead acid battery be reversed?

How can this FM transmitter modulate?

How can I measure the frequency of a watch crystal using my oscilloscope?

How to build an interesting XOR circuit with my child's electronics kit

Driving high and low inputs of a MOSFET driver with a single PWM signal

Networking options for multi-node Star topology

Best way to reduce battery consumption for LED device?

AVR:LDI instruction

Why wavelength is not measured with a unit of time?

How do i find nichrome temperature

How is a sine wave created by an oscillator?

Can two devices share a decoupling capacitor?

Does opto-isolation matter when there's only one power supply?

What is wrong with this simple SMPS?

Why have atx power supplies need selector voltage?

Any simple short range metal detector?

Electrically conductive thermal paste

How does flux work, chemically, and what are the products?

Using an Opto-Isolator to change an Op-Amp's Amplification

Calculating LED current flow in a parallel circuit

Using ATtiny ADC with a system clock of 32.768 kHz

Frequency of astable multivibrator built with inverters (NOT gates)

Which part of PCB circle for capacitor is positive?