KIT INCLUDES:
- Breadboard 400 points- 1
- Voltage Controller IC (Voltage Regulator) – 1
- LM358 op amp IC – 1
- 9v battery with battery snapper– 1
- Potentiometer 10 k – 1
- Temperature Sensor LM35 – 1
- Resistor 1k – 2
- Led – 2
- Single stand wire 2m - 1
HARDWARE REQUIRED
- Breadboard 400 points- 1
- Voltage Controller IC (Voltage Regulator) – 1
- LM358 op amp IC – 1
- 9v battery with battery snapper– 1
- Potentiometer 10 k – 1
- Temperature Sensor LM35 – 1
- Resistor 1k – 2
- Led – 2
- Single stand wire 2m - 1
PIN DESCRIPTION
LM385 IC
The pin diagram of LM358 IC comprises of 8 pins, where
- Pin-1 and pin-8 are o/p of the comparator
- Pin-2 and pin-6 are inverting input/per second
- Pin-3 and pin-5 are non-inverting input/per second
- Pin-4 is GND terminal
- Pin-8 is VCC+
Features of LM358
- It consists of two op-amps internally and frequency compensated for unity gain
- The large voltage gain is 100 dB
- Wide bandwidth is 1MHz
- Range of Single power supply is from 3V to 32V
- Range of dual power supplies is from + or -1.5V to + or -16V
- The supply current drain is very low, i.e., 500 μA
- 2mV low i/p offset voltage
- Common mode i/p voltage range comprises ground
- The power supply voltage and differential i/p voltages are similar
VOLTAGE REGULATOR 7805
LM35 TEMPERATURE SENSOR
CIRCUIT CONNECTION
- Connect LM358 pin 4 - negative rail of breadboard
- Connect LM358 pin 8 - positive rail of breadboard
- Connect LM358 pin 1 - pot variable pin
- Connect LM358 pin 2 - pot any fixed pin
- Connect LM358 pin 2 - 1k ohm resistor then connect to ground
- Voltage regulator 7805 ic pin 2 - negative rail of breadboard
- Voltage regulator 7805 ic pin 3 - positive rail of breadboard
- Voltage regulator 7805 ic pin 1 - battery positive
- Battery negative - negative rail of breadboard
- LED positive - LM358 pin 2
- LED negative - negative rail of breadboard
- LM358 op amp ic pin 3 - LM35 pin 2
- LM35 pin 1 – vcc (Positive rail of breadboard)
- LM35 pin 3 - negative rail of breadboard
WORKING
When you increase the temperature near to LM35 temperature sensor, circuit will complete and led will glow.