circuit harness wiring

Showing posts with label led. Show all posts

Thursday, August 15, 2013

The Battery is Transformed into a Mini LED Flashlight

When night fell, we urgently need to the light, especially in a small street without lights, we feel very terror, so we should always carry a flashlight. So today I introduced the useful household items for you, that is the mini LED flashlight.

This mini flashlight is a very simple structure, which is the use of led technology, a led installed in the traditional battery positive, and connected with negative by the built-in connection and switch,this best led flashlight can still be an ordinary battery, press the switch, it can shine to provide lighting When we need it. Taking into account the design does not change the basic structure of the battery, and led has the low cost, this mini LED flashlight still has its commercial potential, it can give people more convenient at least.

Sunday, April 21, 2013

DUAL 3v WHITE LED FLASHER DUAL 1v5 WHITE LED FLASHER

This circuit alternately flashes 2 white LEDs, on a 3v supply and produces a really bright flash. The circuit produces a voltage above 5v if the LED isnt in circuit however the LED limits the voltage to its characteristic
voltage of three.2v to 3.6v. The circuit takes concerning 2mA and is actually a voltage-doubler (voltage incrementer) arrangement.

The 1k charges the 100u and therefore the diode drops zero.6v to prevent the LED from setting out to illuminate on 3v. When a transistor conducts, the collector pulls the 100u down towards the 0v rail and therefore the negative of the electro is actually concerning 2v below the 0v rail. The LED sees 3v + 2v and illuminates terribly brightly when the voltage reaches about 3.4v. All the energy within the electro is pumped into the LED to supply a really bright flash.

DUAL 1v5 WHITE LED FLASHER
This circuit alternately flashes 2 white LEDs, on a 1.5v supply and produces a really bright flash. The circuit
produces a voltage of concerning 25v when the LEDs dont seem to be connected, however the LEDs scale back this as they need a characteristic voltage-drop across them after they are illuminated. dont use a offer voltage above one.5v.

The circuit takes concerning 10mA. The transformer consists of thirty turns of terribly fine wire on a 1.6mm slug 6mm long, however any ferrite bead or slug will be used. the amount of turns isnt crucial. The 1n is very important and using the other worth or connecting it to the positive line can increase the provision current.
Using LEDs apart from white can alter the flash-rate considerably and each LEDs should be identical color.

Saturday, April 6, 2013

LED 230 V Flasher Circuit diagram

This circuit operates with 230v.you can use this circuit to decorate your parties.I think this will be a wonderful circuit to you all.This circuit was taken from my old circuit book called 100 circuit book.Here DIAC ER 900 and Triac BTW 11-400.

230 V Flasher Circuit diagram

Note:

Be careful when you deal with 230V
Build this circuit on a PCB
Use only mentioned values.