User Dean - Electrical Engineering Stack Exchange

Dean

Member for 11 years, 8 months
Last seen more than a week ago

deanchester.com
Kidderminster, United Kingdom

102 Questions

Score Activity Newest Views

74 votes

4 answers

106k views

How is using a transformer for isolation safer than directly connecting to the power grid?

transformer safety

asked Jul 27, 2011 at 22:09

47 votes

9 answers

14k views

How were the first microprocessors programmed?

microprocessor

asked Jan 7, 2011 at 1:15

42 votes

8 answers

66k views

What is a pull up and pull down?

resistors terminology

asked Dec 2, 2010 at 12:05

30 votes

2 answers

48k views

Capacitor Sizes for 7805 Regulator

voltage-regulator

asked Dec 20, 2010 at 22:58

25 votes

6 answers

83k views

Why is three-phase offset by 120 degrees?

mains three-phase

asked Apr 10, 2011 at 23:17

24 votes

6 answers

24k views

Why are NAND Gates cheap?

digital-logic

asked Oct 13, 2011 at 20:57

17 votes

2 answers

39k views

7812 minimum input voltage?

voltage-regulator

asked Dec 2, 2010 at 23:56

16 votes

4 answers

77k views

Voltage input for charging NiMH Batteries

battery-charging

asked Jan 8, 2011 at 16:18

13 votes

4 answers

40k views

When to use STD_LOGIC over BIT in VHDL

vhdl

asked Dec 20, 2012 at 18:04

12 votes

6 answers

3k views

Tips for keeping lots of cables tidy

wire

asked Mar 4, 2011 at 17:23

12 votes

2 answers

12k views

Getting higher power output by using more resistors

resistors

asked Dec 17, 2010 at 16:52

11 votes

6 answers

22k views

Where to start when considering making a GPU?

gpu

asked Jun 22, 2011 at 19:30

11 votes

2 answers

24k views

Arrows on connections in schematics

schematics eaglecad

asked Jan 23, 2013 at 16:51

11 votes

7 answers

6k views

Mains Voltage on Strip Board

pcb safety stripboard

asked Apr 14, 2015 at 9:50

10 votes

3 answers

3k views

Data retention on a microcontroller

avr data

asked Jun 29, 2011 at 21:32

10 votes

4 answers

832 views

What have countries gained by increasing/decreasing mains voltage by 10V?

mains

asked May 22, 2011 at 9:28

10 votes

4 answers

42k views

What is Frequency in electronics?

frequency

asked Apr 21, 2011 at 23:08

10 votes

1 answer

3k views

Why do battery/power supply supply voltages drop under a load?

batteries

asked Jan 18, 2011 at 22:57

9 votes

5 answers

8k views

Will there be any effects on a signal in a long wire?

ldr

asked Apr 20, 2011 at 0:09

9 votes

4 answers

2k views

Why can't a power supply supply low current?

power-supply current ratings

asked May 1, 2013 at 15:27

9 votes

1 answer

5k views

What happens to I/O pins in Low Power Mode on MSP430

msp430

asked Feb 7, 2013 at 11:48

8 votes

2 answers

3k views

Why are multipliers 18x18 Bit in FPGAs?

fpga

asked May 27, 2013 at 14:18

8 votes

3 answers

13k views

Water and Electronics?

damage water

asked May 11, 2011 at 22:44

8 votes

4 answers

19k views

How do constant current power supplies work?

power-supply

asked Feb 5, 2011 at 22:51

7 votes

4 answers

1k views

Circuit Protection

protection

asked Dec 12, 2010 at 20:31

7 votes

5 answers

2k views

Why the use of resistors when pulling something up or down?

resistors

asked Mar 6, 2011 at 21:42

7 votes

5 answers

13k views

Grounding a soldering iron

soldering

asked Mar 16, 2011 at 19:15

6 votes

2 answers

1k views

Is it possible to detect battery chemistry?

battery-charging

asked Mar 24, 2011 at 18:17

6 votes

3 answers

35k views

What happens to my LED when I supply too much current?

led

asked May 24, 2011 at 21:47

6 votes

4 answers

21k views

Building a Battery Charger with an LM317

batteries battery-charging lm317

asked Nov 10, 2010 at 15:00

1