Foros Electr�nica - Comunidad sobre electr�nica en Espa�a

Busco colaboracion con empresas o tecnicos

rparero — Fri, 18 May 2012 09:21:55 GMT

Buenas tardes, mi nombre es Rub�n y soy un t�cnico electr�nico con m�s de 15 a�os de experiencia en diversos sectores, resido en la ciudad espa�ola de Barcelona. Actualmente estoy haciendo trabajos por cuenta propia y me gustaria potenciarlo colaborando con otros t�cnicos o empresas, no me importaria poder asociarme con otro t�cnico que tambien tuviera experiencia y estuviera en un caso similar al mio, a groso modo los servicios que actualmente ofrezco y pretendo potenciar son los siguientes:
Televisores, impresoras y monitores PC, equipos de m�sica, receptores tdt y sat�lite, peque�o electrodom�stico, sustituci�n pantallas lcd de videoconsolas, m�viles y GPS y en general cualquier equipo electr�nico. Instalaci�n y dise�o de salas Hifi-Home Cinema. Instalaci�n camaras de vigilancia ip. Peque�os dise�os electr�nicos con microcontroladores.
Para empresas me ofrezco como tecnico en mantenimiento de equipos de estetica, etc.
Si alg�n t�cnico o empresa est� interesado no dud�is en contactar conmigo, aqui os dejo mi email: rparerar@gmail.com
Y mi pagina web:reciclatronic

Ayuda curso electronico

Davidgc — Thu, 17 May 2012 20:48:37 GMT

Hola que tal a todos, seguramente no es el sitio indicado para hacer una consulta, pero es q por mas que busco no encuentro lo que quiero, vivo en Madrid tengo 35 a�os tengo unicamente la egb llevo tiempo interesado en hacer electronica, estoy mirando cursos de electronica a traves de academia ya que como no tengo los estudios necesarios y aparte trabajo y no dispongo de tiempo material para hacer fp o algo por el estilo he mirado varios cursos en academia y la verdad es que no me dan buena espina, te venden la moto con que luego haras practicas al finalizar el curso y que te meten en una bolsa de trabajo, la mayoria son cursos a distancia tipo ccc o ceac, hay otras como masterd que es semipresencial que aunque vas a "clases" te lo ponen todo demasiado bonito y muy facil y no me da buen rollo.
No se si alguien me puede decir donde puedo dirigirme donde sea de confianza o que cursos pidria hacer que para el dia de ma�ana te permitan dedicarte a ello o por lo menos algo que merezca la pena.
Gracias por vuestro tiempo.

Bateria 5200mAh puede reemplazar a 4400mAh?

Nossler — Thu, 17 May 2012 17:15:40 GMT

Hola amigos!

Esta es mi duda: a mi port�til se le muri� su bateria y eval�o reemplazarla por las compatibles "gen�ricas" de Focalprice por una raz�n econ�mica.
Ocurre que mi actual bateria del port�til Acer Aspire es: modelo AS10D75 4400mAh 11.1V y la que me ofrecen (y dicen que sirve perfectamente los de F.P.) es modelo AS10D41 5200mAh 11.1V
Esos 800mAh pueden perjudicar el equipo o hacerme explotar la bater�a o alguna calamidad equivalente? o la compro sin miedos?
Gracias y escucho su opini�n calificada!

Luis

Programacion DB historico

Vicmi — Wed, 16 May 2012 09:37:31 GMT

Hola a todos

Haber si alguien me puede echar una mano. Estoy haciendo un programa que ser�a como un sistema de prestamo, necesito almacenar los usuarios que utilizan el sistema en un DB historico.

Esto es lo que tengo hecho:

En el OB100 iniciar el puntero en la primera posicion.

Auf db2
lar2 p#0.0

Y en el OB1 cada vez que venga un usuario guardar la informacion donde apunta el puntero y incrementarle para cuando venga el siguiente.

auf db2
l num
t d[ar2,p#0.0]
+ar2 p#4.0

El problema es que me salta un error a la hora de simularlo, creeo que es por la inicializacion del puntero, pero si lo inicializo en el ob1 se graban todos los datos en la primera posicion.

un saludo y gracias a todos ;)

Necesito ayuda de AirLive WL-1600 USB

Jorge19753 — Wed, 16 May 2012 08:46:45 GMT

Necesito ayuda en la reparaci�n del adaptador wl-1600 usb . Adjunto una imagen y necesito nombre de la detalle indicada por la flecha . Gracias de antemano.

Porque no consume 72W mi tira de leds?

atiktepika — Wed, 16 May 2012 06:43:25 GMT

Buenos d�as,

Soy muy nuevo en esto de la electr�nica as� que perd�n si mi pregunta es muy b�sica!

He comprado una tira de leds SMD 5050 que en teor�a consum�a 72W conectada a una fuente de 12V.

Despu�s de comprobarla con el multimetro recibo una lectura de solo 2.2A lo cual significar�a que esta consumiendo tan solo 26.4W no?

Pregunte por email a la tienda donde la hab�a adquirido y me indicaron que cada led consum�a 0.06A, y que se conectaban de 3 en 3 , lo cuan en un metro de tira ( con 60 leds):

1. 60/3= 20
2. 20 * 0.06 A = 1.2 A
3. P= UI = 12V*1.2A = 14.4W

Pero esto no cuadra con lo que el multimetro indica!

Estar� muy agradecido si alguien me lo puede explicar o indicar donde esta el fallo.

Saludos y gracias, Javier.

Why should I have access to TorrentPrivacy?

moolvelia — Tue, 15 May 2012 23:50:17 GMT

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Sumador Serie VHDL

perikillo — Tue, 15 May 2012 21:06:27 GMT

Estoy dise�ando un sumador, ya tengo el dise�o y necesito que me echen una mano para pasarlo a VHDL. Las dos entradas a sumar (A y B) son registros de desplazamiento de 4 bits (shift register), y la salida Sum es tambien un registro de desplazamiento de 4 bits.

El sumador es de 1 bit y guarda el acarreo (carry) en un biestable D. La operacion ser�a, una vez cargados los registros A y B, estos registros se desplazan hacia la derecha y los bits menos significativos pasan al bloque sumador (s<=a⊕b⊕y; Y<=ab+ay+by;) El bit resultante de la
suma (s) se carga al bit m�s significativo del registro de salida Sum i el
carry (Y) se guarda en un biestable D. El proceso se repite a cada ciclo del clock.

Cualquier ayuda les agradeceria muchisimo!!

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Comportamiento extra�o (USB)

NIKOTESLA — Mon, 14 May 2012 16:43:43 GMT

Hola a todos,

me acabo de encontrar con un comportamiento extra�o, del cual hasta ahora no encuentro explicaci�n alguna:
Cuando programo el pin P0.16 como salida y pongo la salida en 1, se interrumpen las comunicaciones USB, esto no ocurre si la salida tiene el valor de 0, he probado con dos m�dulos diferentes de Espardino y ocurre lo mismo. Normalmente esperar�a que ocurriese algo similar si programase la salida P0_23 (VBUS), he revisado el circuito y no he encontrado nada, es decir el pin 46 del LPC2148 va directamente a la salida P0_16 de los conectores hembra... ocurre esto con otros m�dulos?
He probado lo siguiente (alterando el circuito): desconect� P0_31 de R10 (activador del PUP USB) y he conectado el extremo de R10 directamente a GND, de tal manera que las resistencias de pull-up del USB est� siempre activas, es decir, que se detecte siempre la presencia de un "dispositivo" USB2.0, sin embargo el resultado es el mismo. El misterioso pin P0_16 de alguna manera me desconecta/interrumpe/fastidia la comunicaci�n USB.
Alguna soluci�n al respecto...?
mientras tanto tendr� que saltarme este pin...(o sea, mas cablecitos azules 30awg en el circuito)

Ajo!, est�s ah�!...

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