Matt circuit

Here is a Power Supply Project for Amplifier B circuit. The recommended power supply for amplifier 100W V-MOSFET [1] it is shown in the above figure. Has separated supply for the various stages feed output stage, stage driver, power amplifier and phase protection. Power Supply Project for Amplifier B: Anyone can remove parts or add a power supply for each channel, separating completely the channels between them. Attention should be paid to ground loops. For anyone who does not use the preamplifier circuit and protection can suppress proportional winding. Out Voltages For Power Supply:     +V1=+60V     -V1=-60V     +V2=+12V     -V2=-12V     +V3=+65V     -V3=-65V Power Supply Project Part List :

Excessive heat to be problematic in the amplifier Class A. Then be made to class B amplifier with a point Q is shifted to point B. Point B is a point on the line load ,where this point intersects the line current Ib = 0. Because of the location of point Such, then the transistor works only active in one part wave phase only. Therefore class B amplifier is always made with 2 of the transistor Q1 (NPN) and Q2 (PNP). Point Q amplifier A, AB and B Since both these transistors work alternately, then the amplifier class B is often named as Push-Pull amplifier. If the signal a sine wave, then transistor Q1 is active in 50% of cycles The first (positive phase 0o-180o) and The next turn on transistor Q2 50% in the next cycle (phase negative 180o - 360o). Class B amplifier more efficient than the class A, because if there is no input signal (vin = 0 volts) then the bias current also Ib = 0 and practically ma...