Hobby Electronics Basics

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Dimmer circuit vs solid state relay ?

I used a dimmer circuit to control my heater 1600 W instead of a solid stste relay as both use a equal 25A triac as a o...
9 comments posted 16yrs
posted by mowhoong
9 comments posted 16yrs posted by mowhoong

Blower speed

I am converting an old computer fan into a blower. Over here at 240 volts, its speed is not adequate. Is there any way t...
4 comments posted 16yrs
posted by kvsteve
4 comments posted 16yrs posted by kvsteve

What does "high side" MOSFET driver mean ?

Not being a power electronics person, could some electronics guru please explain the term "high side" MOSFET driver. Tha...
3 comments posted 16yrs
posted by dakupoto
3 comments posted 16yrs posted by dakupoto

4mA current regulator

can anyone offer any suggestions on how to make a simple 4mA current regulator... I started looking at LM317 voltage re...
32 comments posted 16yrs
posted by panfilero
32 comments posted 16yrs posted by panfilero

ringing inductor in boost circuit

I breadboarded a little voltage booster. Here's the business end of the circuit: +5v | ,------------+ | | | | | ) | )22...
8 comments posted 16yrs
posted by kellrobinson
8 comments posted 16yrs posted by kellrobinson

Photovoltaic inverter question

I have a photovoltaic inverter related question. Recently I have been looking into the possibility of building a grid-t...
16 comments posted 16yrs
posted by dakupoto
16 comments posted 16yrs posted by dakupoto

Video cards

Hi, I am wondering how these Video cards are made. I have now studied little bit of Verilog and VHDL - very interesting...
2 comments posted 16yrs
posted by klaine8
2 comments posted 16yrs posted by klaine8

Capacitor discharge probes

Hello, I recently bought a Blue ESR meter and assembled it and it is working well. In the instructions it mentions maki...
25 comments posted 16yrs
posted by rowl
25 comments posted 16yrs posted by rowl

Electric scooter motor reversible?

I have not found it on the web, but the part number is XYDJ09072117 It uses this controller. http://www.curriestore.com...
4 comments posted 16yrs
posted by jdoe
4 comments posted 16yrs posted by jdoe

NEC 870 for Lighting on the Web?

Supposedly the NEC 870 book on lighting codes is on the web I've seen references to it, but no pdf? Anyone know?
1 comments posted 16yrs
posted by wolftracks
1 comments posted 16yrs posted by wolftracks

Twin T circuit wanted

Can someone supply a single transistor circuit that will give a damped sine wave when a pulse is applied? to emulate a b...
340 comments posted 16yrs
posted by default
340 comments posted 16yrs posted by default