This
circuit is called the auto circuit which can use any electronic device
to operate it automatically. To make this circuit the cost is very low.
Any interested student can make it very easily. The main component of
this circuit is transistor. Its operation is very easy.
circuit is called the auto circuit which can use any electronic device
to operate it automatically. To make this circuit the cost is very low.
Any interested student can make it very easily. The main component of
this circuit is transistor. Its operation is very easy.
The
main purpose of this is to operate a charger fan where need 6volt
battery. This circuit is mainly needed when the main power is OFF. That
is called load shedding. Because at the time of load shedding , 6volt
battery operate the fan automatically. You don’t have need to ON the
switch of the fan or OFF the fan switch. Only relay work this as a
switch. The charging system is also automatically. On the other big
matter is that no over charge is occurred of the battery. So the life
time of the battery is increased.
main purpose of this is to operate a charger fan where need 6volt
battery. This circuit is mainly needed when the main power is OFF. That
is called load shedding. Because at the time of load shedding , 6volt
battery operate the fan automatically. You don’t have need to ON the
switch of the fan or OFF the fan switch. Only relay work this as a
switch. The charging system is also automatically. On the other big
matter is that no over charge is occurred of the battery. So the life
time of the battery is increased.
Component:
1. Transistor ( npn ) – 2N2222, BC547
2. Zener Diode - 6.8V
3. Diode
4. Relay - 6V
5. Resistor – 1K, 100Ω
6. Rechargeable Battery - 6V
7. Bulb - 6V
8. Power supply - 6V
Operation:
This
circuit is three section, input section and output section. 2N2222
transistor is used to control relay. BC547 transistor is used to control
output section using relay. Zener diode and a diode connect with BC547
transistor base as a series connection. Zener diode always controls
battery charge. It zener voltage is 6.8V which can’t overcome battery
voltage.
circuit is three section, input section and output section. 2N2222
transistor is used to control relay. BC547 transistor is used to control
output section using relay. Zener diode and a diode connect with BC547
transistor base as a series connection. Zener diode always controls
battery charge. It zener voltage is 6.8V which can’t overcome battery
voltage.
When
power supply voltage is applied to the 2N2222 transistor base the
transistor is on. So the relay is ON relatively the output circuit is
OFF. Inverse will occurs when power supply voltage is OFF. When 2N2222
transistor is ON then relay active only battery charging, relay
deactivate the fan. Zener diode always keeps battery voltage full
(6volt).
power supply voltage is applied to the 2N2222 transistor base the
transistor is on. So the relay is ON relatively the output circuit is
OFF. Inverse will occurs when power supply voltage is OFF. When 2N2222
transistor is ON then relay active only battery charging, relay
deactivate the fan. Zener diode always keeps battery voltage full
(6volt).
Advantages:
1. Need not switch ON/OFF.
2. It depends on AC power supply come or gone.
3. This circuit is used when you are sleeping.
4. Easy to make
5. Cost is very low
6. Components are few.
7. Battery can’t over charge.
8. Overall efficiency is 78%.
9. Not you, only relay can do your work.
10. The circuit is a small project for all students.
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.