Position: Index > Led Circuit >

Flashing Led Controller

2014-12-02 15:19  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


The LED with integrated flasher is connected in series with the base-emitter junction of transistor Tl. Thus, the l
Flashing Led Controller

oad connected to K2 is switched on and off in rhythm with the flash rate. This load can be a relay or a lamp. The maximum collector current of the transistor (of the BD139 = 750 mA) must not be exceeded. If that is not sufficient, a power Darlington can be used, which will give some amperes. The current drawn by the circuit under no-load conditions amounts to 20 mA.



Reprinted Url Of This Article:
http://www.next.gr/light-laser-led/led-circuits/flashing-led-controller-l14091.html