FLASHING A SCHEME DOUUBLE BULB CAR AND LOCKS circuit schematic with explanation

FLASHING A SCHEME DOUUBLE BULB CAR AND LOCKS

FLASHING A SCHEME DOUUBLE BULB CAR AND LOCKS:

The device allows to flash both lamps simultaneously or alternately.

The Permel DV switch to select the appropriate function, the trimmer TR1 is used to vary the flashing frequency between about 44 and 250 flashes per minute.
The system can be powered by voltages of 12 or 24 Volts DC and the maximum power of each lamp should not exceed 24 Watts if supplies 12 Volts and 48 Watts if supplies 24 Volts.
Naturally, if it is powered by 12 volts, the lamps must also be 12 volts; if supplies 24 Volts, the bulbs must be 24 Volts. For the assembly of components and connections, follow the implantation scheme carefully and remember to do both INDICATED bridges on the scheme. The device can be enclosed in a plastic case.

LIST OF ELECTRONIC COMPONENTS All resistors are of 1/4 watt unless statedotherwise. R = 33 ohm R2 = lKohm R3 = lKohm TR1 = 470 Kohm Cl = 100uF25Velec.C2 = 10uF16VeIec. C3 = 4,7uFl6Velec. D1-1N4001 .. .7 T1 = BDX53 T2 = BDX53 IC1 7809 = IC2 = 4017B IC3-40106B 1 Selector 1 contacts Terminal 5 1 Support pin 14 1 Support 16 pin

Circuit Schema for flashing the dark with explanation

Schema for flashing the dark

Electronic flasher Schema:
The electrical diagram of Figure 1 shows the use of four NAND gates contained in the 74HC132 integrated circuit (which may be replaced by the 74LS132). The first three gates IC1-A, IC1-B and IC1-C are used in stage oscillator whose frequency is determined by the C1 values ​​R1 and R2, the third IC1-D is connected in inverter to blink the LED DL1 and DL2.

Figure 1: Diagram of the night flashing bicycle or pedestrian.

These integrated circuits operating with 5 V and 9 V batteries 6F22 being decidedly convenient, the voltage is reduced and stabilized by a 78L05 regulator.
Turning the R2 cursor from one end of the track to another, flashing pass 0.5 to 3 chips per second.

Figure 2: Pinouts regulator

78L05 seen from below and LED

side view.

The circuit is installed in a small pocket fi nally lated as a way to put a belt around his waist (cycling, walking, etc.).
You will find it flashing safety is very effi cient in the dark.
There is nothing to prevent the build number (the cost is ridiculous) and arrange them in several places (legs, back, bike, scooter ...) in order to increase visibility.

Figure 3: Circuit Pinouts

integrated 74LS132 or 74HC132 seen

from above.

List of electronic components:
R1 ............... 2.2 kW
R2 ............... 10 kW trimmer
R3 ..... .......... 220 Ω
R4 ............... 220 Ω
C1 ............... 47 uF electrolytic
C2 ............... 47 uF electrolytic
C3 ............... 47 uF electrolytic
DL1 ............ . diode LED
DL2 ............. diode LED
IC1 .............. SN74HC132 integrated
IC2 ............. . MC78L05 integrated
S1 ............... switch
(Unless otherwise specified, all resistors
are 1/4 W 5%)

Cimple LED Flasher Circuit Schematic With Explation

This is a simple circuit diagram .Here we have used common IC LM317 T.You can choose flowing current according to the chart this circuit can be operated with 9V to 20V.







Note

# Build this circuit on a PCB