JAN29

Digital light dimmer

Our forum user niho has just finished his light dimmer for DC current. He describes his project:

"The light level can be adjusted with two push-buttons "Up" and "Down". Controller in this application is PIC16F84 that drives BUZ11 mosfet. Dimmer is tested with a light bulb 12V/4W and mosftet didn't get even warm (which was expected since the datasheet says: 50V/30A). There is a small 5V voltage regulator on board LM78M05 (0,5 A) for the PIC microcontroller. Light level can be adjusted to 10 steps (0-9) and upon startup it is automatically adjusted to level 5. Current light level is displayed on 7-segment LED display with common anode. PCB was designed in Proteus and firmware is written in PBP."

dim5
© niho

[ Source: schematics: niho @ forum ]


Digitalni dimmer svjetla Bookmark and Share Comments (7)

comment [7]

Evo postavio sam link ponovo u zipu se nalaze sema, hex kod i nacrt PCB-a u protelu ako treba jos nesto budem lako dodao: [url=http://www.hugedrive.com/published/WG/show.php?q=TklITw==-cd2a7836] Link je[/url] @milos123 MCU zahtijeva stabilan napon za stabilan rad a na izlaz mozes staviti i bipolarni tranzistor samo preracunaj onaj otpornik od 1k prema gejtu (bazi) da struja ne premasi 20mA koliko je dozvoljeno opterecenje pina MCU-a.
IP: n/a

comment [6]

You have more uesful info than the British had colonies pre-WWII.
IP: 82.134.78.42

comment [5]

Proekat je odlican i dobro uradjen svaka cast. Zanima me da li mogu koristiti umjesto stabilizatora sa 12V na 5V potencinometar pa da snizim napon na 5V za potrebe pica posto nisam nasao fet.
IP: 94.250.45.178

comment [4]

Da li možeš da postaviš sliku šeme,pošto ovaj link ne radi na kome si postavio!
IP: n/a

comment [3]

@vfdisplay, peglom kao i sve ostalo samo sto ovdje moras stampati kao ogledalo i nije ispisano samo dimer nego kompletan raspored i vrijednosti elemenata. A ledice sam "dimao" na probnoj plocici prije nego sam uradio krajnji PCB kakav se vidi u projektu.
IP: n/a

comment [2]

zanima me kako si ispisao ona slova na plocicu? (ono "digitalni dimer")
IP: n/a

comment [1]

Ovo moze da dimma i LEDs...
IP: n/a


Comment page:


add comment

name

e-mail (will not be published)

website

How much is = also add letter "a" at the end of your result! Eg.: 7a

Please log-in!

To log-in use your username and password from the forum.

Register

site friends

sponsored links

ads