We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.). This is enough for this case.You may return most new, unopened items within 30 days of delivery for a full refund. A circuit Designer set in an unregulated power supply pattern. It is a 35V 4A Dual DC power supply circuit. Here is a power supply circuit of a 40W-50W OCL amplifier. VR1 serves as to adjust a bias voltage of the idle current to the circuit. This connection reduces crossover distortion as well. for Q4 acts as setting bias level of the output transistor which is instead Diodes same the normal amplifier circuit. Q3 serves to limit current, the general bootstrapped circuit that uses the RC. Such as a speaker cable short-circuited, by will acts as short the bias circuit of the output transistor is reduced so that it not works. Because the current flowing through the load too much. Q8, Q9 acting as the driver circuit to drives the power transistor Q10( MJ2955), Q11( 2N3055).įor Q6, Q7 acts as the output transistor protection circuit from damage. The transistor Q5 is the part second amplifier circuit, by has C3 is to feedback between pin base and collector, to prevent procreation oscillator way high frequency At emitter circuit has Zener diode is connected as maintaining a constant voltage 15V. The transistor( MPS9632) Q1, Q2 together to as a differential amplifier, By has R10, R4 and C2 together constitute the feedback circuit and defined an all gain ratio of a circuit. 40 watts Main Audio amplifier circuit using transistors
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