User dren.dk

29 votes

Relay vs. Transistor?

answered Feb 13, 2011 at 13:37

19 votes

Accepted

Powering laptop from 12V sources without inverter

answered Feb 13, 2011 at 17:56

13 votes

Accepted

For a small Vin-Vout difference, is it worth using an LDO vs a buck regulator?

answered Nov 6, 2010 at 14:25

12 votes

Accepted

Patented hardware architectures

answered Feb 18, 2011 at 19:14

12 votes

How does a wind farm prevent the fastest spinning turbine from driving the slowest one?

answered Sep 16, 2011 at 11:51

11 votes

Should I buy a Netduino or Arduino?

answered Oct 28, 2010 at 17:50

10 votes

Accepted

Is my butane soldering iron's tip dead? (pic)

answered Jan 11, 2011 at 15:14

10 votes

Accepted

What are some common/popular/go-to switching voltage regulators?

answered May 6, 2011 at 20:22

9 votes

Accepted

Is there a text or markup standard for describing a Bill of Materials?

answered Feb 7, 2011 at 7:45

8 votes

High definition video on a composite cable

answered Nov 17, 2010 at 8:49

8 votes

Accepted

3 Contact Laptop Power Supply

answered Jun 27, 2011 at 16:43

8 votes

Accepted

12V DC UPS for Network Equipment

answered Mar 10, 2011 at 14:40

8 votes

Low-cost PCB prototyping

answered Apr 26, 2011 at 9:10

8 votes

Accepted

Switching-on/off 1000V * 1000A in 10ns

answered Oct 25, 2011 at 8:04

7 votes

Accepted

What is this transformer-like component with only two leads

answered Nov 16, 2011 at 13:26

7 votes

Accepted

Seeking cheap RFID reader / writer

answered Feb 9, 2011 at 11:01

6 votes

USB to SPI converter

answered Feb 11, 2011 at 20:42

6 votes

High frequency mains transmission

answered Nov 22, 2010 at 10:43

6 votes

Accepted

Reliability of servos

answered Jan 4, 2011 at 11:04

6 votes

Significance of 24 Volts Power Supply

answered Apr 27, 2011 at 19:35

6 votes

Accepted

What is equivalent to a daily build (and smoke test) for schematic designs?

answered Jan 21, 2011 at 19:47

6 votes

Why is it so problematic to have close to zero standby power consumption?

answered Mar 23, 2011 at 15:24

5 votes

Accepted

Algorithm for balancing LI-PO batteries?

answered Jun 22, 2011 at 6:59

5 votes

Are 4xAA DIY Gadget Chargers Safe?

answered Jul 24, 2011 at 9:12

5 votes

Any reliable site where hardware engineers can be hired for small (work-from-home/telecommute) projects?

answered Nov 27, 2010 at 19:47

5 votes

SMD vs. Through-hole components in high vibration environments

answered Nov 1, 2010 at 19:17

5 votes

What Workbench Safety Improvements Have You Made?

answered Nov 4, 2010 at 8:53

4 votes

Accepted

Reading up to 8 PWM's

answered Oct 29, 2010 at 12:25

4 votes

What's up with the operating voltages 5 V, 3.3 V, 2.5 V, 1.8 V, etc.?

answered Nov 8, 2010 at 10:04

4 votes

How to go from newbie to manufactured?

answered Nov 9, 2010 at 10:36

Stack Exchange Network

62 Answers

Relay vs. Transistor?

Powering laptop from 12V sources without inverter

For a small Vin-Vout difference, is it worth using an LDO vs a buck regulator?

Patented hardware architectures

How does a wind farm prevent the fastest spinning turbine from driving the slowest one?

Should I buy a Netduino or Arduino?

Is my butane soldering iron's tip dead? (pic)

What are some common/popular/go-to switching voltage regulators?

Is there a text or markup standard for describing a Bill of Materials?

High definition video on a composite cable

3 Contact Laptop Power Supply

12V DC UPS for Network Equipment

Low-cost PCB prototyping

Switching-on/off 1000V * 1000A in 10ns

What is this transformer-like component with only two leads

Seeking cheap RFID reader / writer

USB to SPI converter

High frequency mains transmission

Reliability of servos

Significance of 24 Volts Power Supply

What is equivalent to a daily build (and smoke test) for schematic designs?

Why is it so problematic to have close to zero standby power consumption?

Algorithm for balancing LI-PO batteries?

Are 4xAA DIY Gadget Chargers Safe?

Any reliable site where hardware engineers can be hired for small (work-from-home/telecommute) projects?

SMD vs. Through-hole components in high vibration environments

What Workbench Safety Improvements Have You Made?

Reading up to 8 PWM's

What's up with the operating voltages 5 V, 3.3 V, 2.5 V, 1.8 V, etc.?

How to go from newbie to manufactured?