barry -

Yesterday, 15:34

barry replied to a thread [moved] Simulator and synthesis tool required in PLD, SPLD, GAL, CPLD, FPGA Design

All the FPGA vendors provide free tools.

3 replies | 82 view(s)

23rd May 2018, 19:40

barry replied to a thread Re Flow Oven temperature and time in Hobby Circuits and Small Projects Problems

"expertengr"? Pretty pretentious name. I'm not an expert, but your profile will depend on a LOT of things. What components are you soldering? How...

2 replies | 69 view(s)

23rd May 2018, 18:00

barry replied to a thread I need a short single "BEEP" circuit in Hobby Circuits and Small Projects Problems

When you say "longboard" I assume you mean a skateboard? What is it you are "turning on"? All we know is that you have a 42V battery.

5 replies | 155 view(s)

23rd May 2018, 17:57

barry replied to a thread Magnetic switch for disconnecting the circuit in Power Electronics

How does the device know when it's "not in use"? You could use a simple reed switch or a hall sensor to effect external control of a switch.

1 replies | 74 view(s)

22nd May 2018, 04:26

barry replied to a thread will altera quartus II 13.0 support in windows xp in PLD, SPLD, GAL, CPLD, FPGA Design

Wouldn't the Altera website be a good place to find this answer?

2 replies | 155 view(s)

21st May 2018, 14:36

barry replied to a thread P82B715 I2C Bus Extender Heats or Not (SOIC package) in Digital communication

Table 6.4 gives you all the thermal information you need. You need to figure how much power the device will dissipate, based on the other parameters...

2 replies | 219 view(s)

21st May 2018, 04:36

barry replied to a thread [SOLVED] Problem with display on LCD in Microcontrollers

I think the answer is right in front of your face: DEMO LIMIT. You are obviously running a demo version if the software and there is some limit...

1 replies | 110 view(s)

19th May 2018, 16:51

barry replied to a thread FaultDetection counters from the standard in Elementary Electronic Questions

What on earth are you talking about?

3 replies | 119 view(s)

18th May 2018, 22:58

barry replied to a thread Choosing Micro-controller for elevator control in Professional Hardware and Electronics Design

As someone who has actually worked on elevators it is most certainly NOT a trivial task-it's not simply turning the motor on and off. Assuming this...

2 replies | 239 view(s)

18th May 2018, 22:36

barry replied to a thread [SOLVED] Want to isolate test equipment in Elementary Electronic Questions

It's really not clear what you've got in mind here- a sketch would help a lot. You're using an un-isolated supply but 'not using its ground'. What's...

4 replies | 157 view(s)

18th May 2018, 21:56

barry replied to a thread [SOLVED] Want to isolate test equipment in Elementary Electronic Questions

What are you going to do with your copper pipe-you didn't explain what you're actually going to connect to that. And what is the water for, cooling?...

4 replies | 157 view(s)

18th May 2018, 16:42

barry replied to a thread [SOLVED] I need help identifying these diodes in Analog Circuit Design

I am just astounded. You are apparently building something to actually sell to customers, and you seriously considered building them out of parts...

8 replies | 217 view(s)

17th May 2018, 22:08

barry replied to a thread [SOLVED] I need help identifying these diodes in Analog Circuit Design

Well, it was laying on a schematic right next to a component that said "LED red". But, seriously, I would hesitate to hook up an unknown component...

8 replies | 217 view(s)

17th May 2018, 17:38

barry replied to a thread reducing number of interconnections in a circuit in Elementary Electronic Questions

144 pin CPLD has 80 fewer pins than fourteen 16-pin devices. And less board space. But this is all kind of academic without knowing what the OPs...

10 replies | 297 view(s)

17th May 2018, 15:48

barry replied to a thread reducing number of interconnections in a circuit in Elementary Electronic Questions

Ahhhhh, you're right. I shouldn't post so early or so late in the day... I was thinking more in terms of how we multiplex LED displays. Not the...

10 replies | 297 view(s)

17th May 2018, 14:46

barry replied to a thread reducing number of interconnections in a circuit in Elementary Electronic Questions

Diodes? What diodes? All you need is to drive each of 28 commons individually and wire-or the four BCD outputs of each digit. (This presumes the...

10 replies | 297 view(s)

16th May 2018, 22:14

barry replied to a thread [SOLVED] I need help identifying these diodes in Analog Circuit Design

Those are little, black, cylindrical diodes. You can't seriously expect anybody to tell you anything more about those. Maybe they are red LEDs.

8 replies | 217 view(s)

16th May 2018, 19:58

barry replied to a thread reducing number of interconnections in a circuit in Elementary Electronic Questions

Not sure what your switches look like. Isn't each digit four outputs and one common? If so, you could tie the four outputs of each digit together...

10 replies | 297 view(s)

15th May 2018, 17:05

barry replied to a thread Pure sinewave generator circuit using opamp in Analog Circuit Design

You don't specify any requirements, other than "no inductor". There are a LOT of ways to create a sinewave. You could also use a DDS with a...

5 replies | 208 view(s)

15th May 2018, 14:35

barry replied to a thread Pure sinewave generator circuit using opamp in Analog Circuit Design

Look at this. ...

5 replies | 208 view(s)

14th May 2018, 01:09

barry replied to a thread Read 24V with an Arduino in Hobby Circuits and Small Projects Problems

You said "a 24V input" not multiple inputs. Maybe you need a multiplexer. I don't think you're giving us the whole story.

9 replies | 333 view(s)

12th May 2018, 16:36

barry replied to a thread Read 24V with an Arduino in Hobby Circuits and Small Projects Problems

why not just have a voltage divider on an input and drive an LED with a separate output?

9 replies | 333 view(s)

10th May 2018, 23:32

barry replied to a thread Soldering Iron Powered By Phone Charger in Hobby Circuits and Small Projects Problems

If you are 5 minutes from the beach, you shouldn't even be thinking about soldering irons. If I were you, I'd grab a towel and a Caipirinha, and head...

24 replies | 802 view(s)

10th May 2018, 17:18

barry replied to a thread [Moved] Remote control to set Ringtones for Door Bell in Hobby Circuits and Small Projects Problems

Yes, it's possible. Do you have a more specific question?

5 replies | 265 view(s)

10th May 2018, 17:17

barry replied to a thread Mosfet failure during switching in Power Electronics

What is your question?

4 replies | 168 view(s)

9th May 2018, 19:09

barry replied to a thread Interfacing a temperature sensor with PLD without implementing SPI/I2C bus in PLD, SPLD, GAL, CPLD, FPGA Design

You could use a 555 timer, an opamp oscillator, a transformer connected to your AC and then a comparator to generate 50/60 Hz, etc., etc.,

15 replies | 482 view(s)

7th May 2018, 18:02

barry replied to a thread ESD test -- Using a 2KV Mosquito bat as ESD gun? in Professional Hardware and Electronics Design

I think mosquito bats are great. For mosquitoes. Obviously you were able to solve your problem with it, but it's not really lab-quality test...

3 replies | 233 view(s)

5th May 2018, 17:20

barry replied to a thread Soldering Iron Powered By Phone Charger in Hobby Circuits and Small Projects Problems

I'm going to build a self-heating shower head! I always thought that was a good idea (other than the intrinsic electrocution danger). But...

24 replies | 802 view(s)

4th May 2018, 23:05

barry replied to a thread looking for true spi adc dac combo for a hobby project in Elementary Electronic Questions

Couldn't you accomplish the same task with a wire?

6 replies | 256 view(s)

4th May 2018, 22:10

barry replied to a thread Soldering Iron Powered By Phone Charger in Hobby Circuits and Small Projects Problems

That guy just used a SOLDERING IRON to make a SOLDERING IRON. (And the soldering iron he used had the most uncared for tip on it that I've ever...

24 replies | 802 view(s)

barry
Advanced Member level 5

Mini Statistics

More 3 Friends

jeffrey samuel

tariq786

mrflibble

Awards

Achievements

Recent Visitors

Basic Information

Optional Info

Statistics

Total Posts

General Information

Helpful Postings

3 Friends

jeffrey samuel

mrflibble

tariq786

Experience

Points

Level up completed

Activity

Points

All Points for user

All Points for threads

All Points for posts

All Points for miscellaneous

Activities

25th May 2018

24th May 2018

23rd May 2018

22nd May 2018

20th May 2018

19th May 2018

18th May 2018

17th May 2018

16th May 2018

barry Advanced Member level 5

Mini Statistics

More 3 Friends

jeffrey samuel

tariq786

mrflibble

Awards

Achievements

Recent Visitors

Basic Information

Optional Info

Statistics

Total Posts

General Information

Helpful Postings

3 Friends

jeffrey samuel

mrflibble

tariq786

Experience

Points

Level up completed

Activity

Points

All Points for user

All Points for threads

All Points for posts

All Points for miscellaneous

Activities

25th May 2018

24th May 2018

23rd May 2018

22nd May 2018

20th May 2018

19th May 2018

18th May 2018

17th May 2018

16th May 2018

barry
Advanced Member level 5