My aim is to design a voltage boost converter with gain being 4. My circuit worked fine with a 9V 500 mAh battery. But as soon as I connected a 12V 1.2Ah lead acid battery, a spark occurred at the point of contact between the battery's positive terminal and solder less bread board. Now I have damaged an inductor, MOSFET as well as an Arduino board. The load is a 300 ohm resistor. I think that the damage occurred because of high input current. But is there any circuit to control the amount of current entering into a circuit?
My specs are as follows. The number in bracket denotes the quantity used. Like (2) in first line means 2 inductors.
Inductor (2) 100 uH, 100 kHz, 2A
Capacitor (2) 22 uF, 50V
Diode (2) 1N5822
Power Mosfet (1) IRLB8748 (This is a logic level power MOSFET triggered by an Arduino)
Battery (1) HW 9V Carbon Zinc Battery 6F22 (or) 12V 1.2Ah lead acid battery which damages everything
Arduino Uno R3 (1)
Solderless Bread Board (1)
Resistor - 100 ohms (3) So total r = 300 ohms when connected in series.
My specs are as follows. The number in bracket denotes the quantity used. Like (2) in first line means 2 inductors.
Inductor (2) 100 uH, 100 kHz, 2A
Capacitor (2) 22 uF, 50V
Diode (2) 1N5822
Power Mosfet (1) IRLB8748 (This is a logic level power MOSFET triggered by an Arduino)
Battery (1) HW 9V Carbon Zinc Battery 6F22 (or) 12V 1.2Ah lead acid battery which damages everything
Arduino Uno R3 (1)
Solderless Bread Board (1)
Resistor - 100 ohms (3) So total r = 300 ohms when connected in series.