12V Fluorescent Lamp Driver Circuit | Using NE555 Timer IC.

How are you all, friends? I hope you are well; I am also well. In today's post, I will show you the process of making a 12V fluorescent lamp driver circuit.

Edited with Canva.

In today's circuit diagram I will show you how to generate 230V AC output from 12V DC input using an NE555 Timer IC. This circuit uses a MOSFET and transformer, which converts our low-voltage DC power into high-voltage AC power. And the main function of our circuit today will be to run the equipment which is powered by 230V.

Components used and their functions

Timer IC (NE555):

Edited with Canva.

It does the timing and signal control of the circuit.

Potentiometer (4.7K):

It is a variable resistor, with the help of which the input signal of the circuit can be controlled.

DC 12V:

The circuit requires a 12V DC power supply to work.

Resistors (1.5K):

These resistors control the signal and limit the current flowing in the circuit.

Step-up Transformer:

This transformer converts the 12V DC input signal to 230V AC output.

Power Transistor (BD243C):

It is a power transistor which amplifies the signal received from the IC and is used to supply power to the transformer.

Capacitor (100nF):

The capacitor helps in filtering the signal and holding the power in the circuit so that the signal remains stable.

Now I am starting the step-by-step diagram drawing.

Step 1: NE555 Timer IC Pinout

First I took the NE555 Timer IC and marked its pinouts correctly. Pin 1 Ground: Zero voltage of the IC. Pin 2 Trigger: Used to trigger the signal. Pin 3 Output: Provides the output signal. Pin 4 Reset: Used to reset or restart the IC. Pin 5 Control Voltage Input Pin: It helps in controlling the performance of the IC. Pin 6 Threshold Pin: Used for timing and signal control. Pin 7 Discharge: Pin used to discharge the charge of the capacitor. Pin 8 Power Supply: The power supply pin supplies voltage to the circuit.

Step 2: NE555 IC Connection

Then I connected pin 1 to ground and pin 8 to positive 12V. And also connected pin 4 to the positive line so that the IC does not reset and continues to work normally.

Step 3: Resistance and Variable Resistance Connections

In this step, I have connected the 1.5K resistor on the left side of the circuit to pin 7 of the IC. Then I have connected the VR 4.7K variable resistor to pin 2 and pin 6. In addition, I have connected the 100 nF capacitor between pin 2 and pin 1 as a control voltage. The timing configuration and functionality of the circuit will determine that.

Step 4: Output Connection and Transistor Usage

In this step, I have connected the 1.5K resistor to pin 3 (output) of the NE555 IC as a control line, which provides the correct voltage to the base of the transistor, and then I have connected the MOSFET (Q1: BD243C) transistor, which amplifies the signal. Then I connected the transformer (T1), which converts the output signal to 230V AC.

Conclusion:

This 12V fluorescent lamp driver circuit is made using an NE555 timer IC, which is a simple and effective lamp driver circuit. It uses a transistor (BD243C) and a transformer to convert 12V DC input to 230V AC output. And as per the community guidelines, I took a selfie with my hand-drawn raygram and wrote my username and community name.

List of parts used

S.no	Component	Value	Qty
1	Timer IC	NE555	1
2	Potentiometer	4.7K	1
3	DC	12V	1
4	Resistors	1.5K	2
5	Step-up Transformer	–	1
6	Power Transistor	BD243C	1
7	Capacitor	100nF	1

🟩 Thank you for reading my post and giving your valuable time. Stay well and stay healthy. God bless you. 🟩

Photography Details	📱 Device: Walton Xanon90	📍 Location: Narayanganj, Bangladesh	📷 Captured By: @imranhassan