The proposed 10 band graphic equalizer circuit can be used in conjunction with any existing audio amplifier system to get an enhanced 10 stage audio processing, and customized tone control. The circuit can be easily converted to a 5 band graphic equalizer by simply eliminating 5 stages from the shown design The Circuit Concept A […]
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Low Power MOSFET 200mA, 60 Volts Datasheet
In this post I have explained the main specs and pinouts of a small signal, low power N-channel mosfet 2N7000G. Mosfets vs BJTs When we talk of mosfets we normally associate it with high current, high voltage, and with high power applications. However, just like ordinary BJTs, small signal mosftes are also available which may […]
Low Pass Filter Circuit for Subwoofer
In this post I have explained a simple low pass filter circuit which can be used in conjunction with subwoofer amplifiers for acquiring extreme cuts or bass in the frequency range 30 and 200Hz, which is adjustable. How it Works Several low pass filter circuits for subwoofer application are presented all over the net however […]
Simple Buck-Boost Converter Circuits Explained
In this post I have explained s few simple DC to DC buck-boost converter circuits which can be used for either stepping up the input DC voltage or stepping down the input DC voltage to specific output DC voltage levels. Since a buck-boost converter allows the input voltage to be either stepped up or stepped […]
IC 555 Automatic Emergency Light Circuit
The discussed 2 simple IC 555 based emergency lamp system employs just a single IC 555 and yet is able to switch more than 20 LEDs directly, it will illuminate the LEDs only during the absence of mains power and ambient light. 1) Using IC 555 as a Comparator The proposed circuit is not only […]
How Buck-Boost Circuits Work
We all have heard a lot about buck and boost circuits and know that basically these circuits are used in SMPS designs for stepping up or stepping down a given voltage at the input. The interesting thing about this technology is that it allows the above functions with negligible heat generation which results in a […]