General Electronics

Can change of load on one winding affect output of other windings (Flyback SMPS)?

For a flyback SMPS, if the output [with feedback] is loaded, the switching duty cycle goes up. In this situation, what...

5 comments posted 20yrs

posted by siliconmike

5 comments posted 20yrs posted by siliconmike

SMPS controller - how does it get its own start up power??

I figured that an SMPS controller IC receives power from one of the windings on the transformer core. The controller th...

2 comments posted 20yrs

posted by siliconmike

2 comments posted 20yrs posted by siliconmike

Need an equivalent for a fast rectifier, but with more amp.

Hi I need a replacement number, but at 20 amp, for my fast rectifier STPR166 , my rectifier are a 200 volt 16 amp. but...

4 comments posted 20yrs

posted by ba221

4 comments posted 20yrs posted by ba221

Will solder pastes be used for nanointerconnect?

Anyone can answer this question? Thank you!

4 comments posted 20yrs

posted by Sam.J.Liu

4 comments posted 20yrs posted by Sam.J.Liu

LED light & salt water/waterproof battery container

Hi, I have made a small LED light consisting of 2 AAA batteries, a switch, resistor and an LED. Does anyone know what w...

7 comments posted 20yrs

posted by seanbxxx

7 comments posted 20yrs posted by seanbxxx

Please advise what IC to use in this project

I'm trying to build a cheap 12V, 4A (48W) flyback SMPS operating on 115 to 230V Mains. Any advise for a cheap / popular...

5 comments posted 20yrs

posted by siliconmike

5 comments posted 20yrs posted by siliconmike

compact fluorescent questions

I looking for detailed circuits for 12 volt DC input compact fluorescent ballasts. Please email any links etc. Thanks......

4 comments posted 20yrs

posted by tttabx

4 comments posted 20yrs posted by tttabx

Electrically isolating network hardware from dehumidifier: isolation transformer or line conditioner?

Hi. I have a dehumidifier plugged into the same electrical outlet as my DSL router and wireless router. I want to elect...

6 comments posted 20yrs

posted by rogacasa

6 comments posted 20yrs posted by rogacasa

Power - brainteaser

Hi, I got the following brainteaser I can't handle with: what power we'll get on a resistor powered from 100W amplifier...

7 comments posted 20yrs

posted by jvereker

7 comments posted 20yrs posted by jvereker

Digital Tachometer Questions

I am preparing to do a review of various arcade trackballs and had the idea of using a digital tachometer to measure ho...

1 comments posted 20yrs

posted by rescuetron

1 comments posted 20yrs posted by rescuetron

Electronic NST waveforms

Does anyone have any information or know a link on the specifications and characteristics high frequency electronic neo...

1 comments posted 20yrs

posted by mdudley

1 comments posted 20yrs posted by mdudley

LM3914 --help :/

Hi all! Could someone explain me how does design from page 12 of http://boss.iele.polsl.gliwice.pl/pdf/National_Semicon...

9 comments posted 20yrs

posted by blender

9 comments posted 20yrs posted by blender

HT1100 video projector schematic

I have an NEC HT1100 video projector that is inop. My son bought it at the college surplus store where he recently grad...

0 comments posted 20yrs

posted by lbfulton

0 comments posted 20yrs posted by lbfulton

[BATTERY] Question 2

Hi, Please help professionally I am concerned about these product, are they safe or no I have a 30 gb Ipod Video and I...

1 comments posted 20yrs

posted by honsbeek3

1 comments posted 20yrs posted by honsbeek3

How to Get a New Plasma Screen TV for under $200

How to Get a New Plasma Screen TV for under $200 http://www.worldofwarcraftexploits.com/plasmatv/

4 comments posted 20yrs

posted by eqtotalsecrets

4 comments posted 20yrs posted by eqtotalsecrets