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Low Pass Filter circuit for Subwoofer

DWA103N Datasheet – Power Supply Supervisor IC - DIP 14 pins Description The IC is designed to optimize PC switching power supply system with minimum external components. It provides undervoltage lockout (UVLO), protection circuits, power good indicator, and on/off control.

Schottky Diode A Schottky diode, also known as a hot carrier diode, is a semiconductor diode which has a low forward voltage drop and a very fast switching action. There is a small voltage drop across the diode terminals when current flows through a diode. A normal diode will have a voltage drop between 0.6 to 1.7 volts, while a Schottky diode voltage drop is usually between 0.15 and 0.45 volts. This lower voltage drop provides better system efficiency and higher switching speed. In a Schottky diode, a semiconductor–metal junction is formed between a semiconductor and a metal, thus creating a Schottky barrier. The N-type semiconductor acts as the cathode and the metal side acts as the anode of the diode. This Schottky barrier...

How to read a value from a capacitor. You can read the value from most capacitors. The only difficult to read capacitors are the very small ones because there is not much space on them to put a value. These small capacitors have 3 numbers on them and sometimes only two. If there are only two numbers you will have to read the value as pf. For instance the number 33 printed on a capacitor means its 33 pf. With 3 numbers this works different. The first number represents the tens, the second number the ones and the third number is the multiply factor. See below for examples. For example: A capacitor with the number 102 printed on it means a 10 with two zeros. The value in this case is 1.000 pF or 0,001 µF also named 1 nf. More examples...