Electronic Circuits and Diagram-Electronics Projects and Design

Power Amplifier Circuit – 25 Watts Description Here is the diagram of a 25 Watt power amplifier circuit made of  TDA 2009 IC.TDA 2009 has two channels each rating 12.5 watts on 4 Ohm load.Here the two channels are bridged to get a single out put channel weighting 25 W. TDA 2009 IC has also built in features such as short circuit protection,thermal protection, overload protection etc using very low external components.The most interesting factor I see about this IC is that it require no dual supply. Power Amplifier Circuit Diagram and Power Supply Circuit Schematic   Notes Do not…

This article lists various types of audio amplifier circuits using Mosfet.We have tested all these circuits in our lab and we found all of them performing satisfactorily. Note: This article will be modified with new versions of Mosfet amplifier circuits in future;we shall notify new additions in our home page. This article contains following list of amplifier circuits using Mosfet. List of Circuits 1. 18 Watts Mosfet Amplifier 2. 10 Watt Mosfet Audio Amplifier 3. 50 Watt Mosfet Amplifier Circuit 1. 18 Watts Mosfet Audio Amplifier Description This circuit is an audio amplifier capable of delivering a decent output power…

19 Watts Simple Amplifier Circuit Description This is a 19 watt simple amplifier circuit diagram using IC LA4440 from Sanyo.It uses very less components other than the IC LA4440.A very high quality circuit with respect to its cost and ideal for beginners. Here IC LA 4440 is wired as a bridge amplifier to deliver a 19 W Rms on a 4 Ohm speaker. The IC has built in thermal, over voltage and short circuit protection.The IC also incorporates a audio muting function,but that is not used here. Notes . Use a 12 V DC power supply able to deliver at…

Stereo Amplifier Circuit Description Here is the circuit diagram of a  powerful and high quality stereo amplifier using IC TDA 1554.The circuit has only very few components.The circuit works best with a 4 Ohm speaker. TDA1554 is a 4 x 11 watt integrated Class-B audio amplifier from Phillips.Since the IC can be operated from 12V it finds a lot of application in car audio systems.The TDA1554 has a lot of good features like thermal protection, reverse polarity protection, load dump protection, short circuit to ground protection, excellent ripple rejection, no switch ON/OFF thud etc. The IC can be wired in…