10 watts Mosfet Audio Amplifier

10 watts Mosfet Audio Amplifier
The scheme presented here is a MOSFET 10W audio amplifier circuit which requires only single power supply. Single rail supply is rarely used in Class-B power amplifiers. Anyway, it's good enough for low power applications. In fact, this circuit is taken from old cassette player that still works. (more…)

200 Watt MOSFET Amplifier

200 Watt MOSFET Amplifier
This 200 Watt MOSFET Amplifier circuit based on traditional diagrams : a symmetrical differential input stage, a cascode stage driver and a MOSFET output stage. It's very easy to be built with common components, and inexpensive. The circuit is very compact and consists of two subsystems : the control stage and output stage. This circuit have Power output is 200 Wrms in 8 ohms or 350 Wrms into 4 ohms. Less than 0.02% distortion, damping factor greater than 300,

25 Watt Power Amplifier based MosFet

25 Watt Power Amplifier based MosFet
25 Watt power amplifier based MosFet,  can be connected directly to the signal source and does not require pre-amplifier to drive. The amplitude of the input signal must reach the level of 200 mV. This signal is normally present on the linear output recorder, CD player, computer sound card and other devices. To adjust the volume can be placed at the entrance to the potentiometer 10 kohm. Trimmer adjustable quiescent current. It must be within 100 mA. (more…)