Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I can give you direct comparison of PADS and Altium from extensive experience. These are both full-strength industrial tools with significant learning curve. For PCB design only, I find PADS much handier. But Altium is winning the game, largely due to a schematic interface and 3D modeling...
JBrock submitted a new article:
Power-Up Latching Relay - [SIZE="3"][FONT="Verdana"]The purpose of the circuit is to create a switch which cannot change posi
Read more about this article...
Pwm?
Hero, I am intrigued... Since the project is completed, I don't plan on making any changes, but I am theoretically interested in the idea.
What frequency are you suggesting for the PWM?
How linear would the response be for this circuit?
What is the control range? For the...
Check Out MAX16823 and Others
Ty, your application is so simple, all you need is a 555 timer and go with current-limiting resistors. (Ya, Hero will scorn that.) I would like to know your LED selection. You probably want red or yellow. There are some monsters available now, up to 12 watts. You...
:DThe circuit is built and tested, as shown in the third picture, and as required by the rules of this forum!
:DThe purpose is to control current through the massive 5-Watt royal blue Luxeon Star LED in linear mode in response to the voltage waveforms. (Read original post again.)
:D No. Get...
Here is a voltage-controlled LED current driver for those who are not afraid to burn some POWER! Forget those wussy switching things trying to achieve, what?, 85% efficiency maybe? What a hassle.
This driver is for a one-LED project. The LED is a 5-Watt royal-blue Luxeon Star. It cost $40 a...
It's a MM Grade Oscillator
The cap charges only through the range of the hysteresis band on the input of the gate. This results in poor frequency stability and little repeatability across different manufacturers. The frequency cannot be calculated with any accuracy. Almost any desirable...
I give it a B+ !
I like it. I am very curious; what software did you use to create the schematic?
Here are my impressions:
> You should label the switch positions. All those NANDS get confusing. It looks like it is shown in the "OFF" position.
> I assume you have tested it, but you did not...
Don't Do It!
15 MPH is fast on any small two-wheeled vehicle. The scooter is mechanically designed to go at a specified maximum speed. You would be placing your friend in very serious danger.
DON'T DO IT!
This update applies to a project posted here on 2-15-2009.
As originally designed, the PC's fans would be powered up along with the second hard drive which is used infrequently for data back-ups. Normally the PC is a silent fanless system with the primary HDD housed in an aluminum enclosure...
Define Requirements
1.) Will you actually build the circuit? If so, using what method?
2.) What is your budget?
3.) What is your schedule?
4.) What is the needed accuracy of pitch and duration?
5.) What is your basic plan so far?
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