controlling a dc motor with 2n2222a transistor

CONTROLLING A DC MOTOR WITH 2N2222A TRANSISTOR HOW TO
CONTROLLING A DC MOTOR WITH 2N2222A TRANSISTOR MANUAL
CONTROLLING A DC MOTOR WITH 2N2222A TRANSISTOR CODE

1N4007 diode controls the fan from being damaged. The 2N2222 transistor acts as a switch and controls the fan speed depending upon temperature. It has +10.0mV/Celsius linear-scale factor. It is rated to operate over a -55☌ to 150☌ temperature range. LM35 is a precision integrated-circuit whose output voltage is linearly proportional to Celsius (Centigrade) temperature. Arduino is at the heart of the circuit as it controls all functions. Bill of Materials S.N.Ĭircuit diagram of the Temperature Based Fan Speed Control & Monitoring With Arduino & LM35 is shown above. The applications areas of this project are air-conditioners, water-heaters, snow-melters, ovens, heat-exchangers, mixers, furnaces, incubators, thermal baths, and veterinary operating tables. Sensed temperature in Celsius Scale and fan speed in percentage are simultaneously displayed on the LCD panel. The microcontroller controls the speed of an electric fan according to the requirement & allows dynamic and faster control and the LCD makes the system user-friendly.

CONTROLLING A DC MOTOR WITH 2N2222A TRANSISTOR HOW TO

In this post, we have described how to design Temperature Based Fan Speed Control & Monitoring With Arduino and LM35 Temperature Sensor. Temperature Based Fan Speed Control & Monitoring With Arduino: Temperature Based Fan Speed Control & Monitoring With Arduino:.Connect a resistor 330R across the positive terminal of battery (topmost row of breadboard) and anode terminal of LED (Light emitting diode) & Connect the cathode terminal of LED to Collector pin of transistor Q2.Insert a resistor- 330 Ohm across base pin of transistor Q1 and negative terminal of battery (lowest bottom row of breadboard).Connect Light Dependent Resistor (LDR) across the positive terminal of battery (topmost row of breadboard) and base terminal of transistor Q1.Connect a resistor 1K across the positive terminal of battery (topmost row of breadboard) and Collector pin of transistor Q1.Connect a wire across the Collector pin of transistor Q1 and Base pin of transistor Q2.Connect wires across the emitter pin of both transistors and -Ve terminal of battery (lowest/bottom row of breadboard.).Connect another transistor Q2- BC547 (NPN) on the breadboard as in step 1.Insert first transistor Q1-BC547 (NPN) on breadboard (or general PCB) as shown in the circuit diagram 1.

Related Post: Magnet levitation simple Electrical Project

Connecting wires – (Use single-core plastic-coated wire of 0.6mm diameter (the standard size) or any wire used in computer networking).

( NPN transistor – BC547 or BC147 or BC548)

CONTROLLING A DC MOTOR WITH 2N2222A TRANSISTOR CODE

Related Post: Automatic Plant Watering & Irrigation System – Circuit, Code & Project Report.

CONTROLLING A DC MOTOR WITH 2N2222A TRANSISTOR MANUAL

On sunny and rainy days, ON and OFF time is noticeably differ which is one of the major disadvantages of using timer circuits or manual operation for switching the street light system.This is because there is a delay in the earlier switching operations both in morning (during sunrise) and evening (during sunset). The automatic operation of street light controlling systems help to reduce the energy consumption as compared to the manually operated street light controlling operations.in the morning, the sensor called LDR (Light Dependent Resistor) senses the light just like our eyes and deactivates the circuit. It automatically switches OFF the lights when sunlight falls on it ( i.e.It automatically switches ON street lights when the sunlight goes below the visible region of our eyes.It is a dark detector circuit based on LDR and a transistor (BC-547 NPN) which automatically switches ON and OFF the street light system.Basic Electronic Project – Automatic Street Light Control Circuitįollowing is yet another simple Electrical/Electronics project for automatic street light control systems especially for students, newbies and hobbyists.

Controlling a dc motor with 2n2222a transistor