Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Need Circuit Design Ideas For Big LED 7 Segments Display

Status
Not open for further replies.
W

wmyatthu

Junior Member level 3
Joined
May 14, 2005
Messages
30
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,514
Hi

I am making a Big Digital Clock. I will use 7 Segments made of LED. The size of one 7 Segment is 12" and consists of 252 LEDs. The problem is I want the display to get the equal light intensity. I am thinking of using PWM design. So, give me any ideas regarding the PWM circuit designs and welcome any tutorials or lessons for digital clock. Thanks.
 

why you not use series bulbes for such kind of display .

with triac as switch !
 

Thanks. But I want to use LED and PWM control for this. So please give me some advices on the circuit or help me any websites for this digital clock.
 

what is the your drive type , common anode or common cathode ??

CA = need pmos

CC = need nmos

better use CC type driver .

 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top