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MosFet Audio Amplifier - 60W

2015-01-02 21:52  
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The circuit for a large temperature range to achieve an improved stability of the quiescent current of the two diodes specifically to red LED. When you need a game or when shopping online be sure to install a large heatsinks. The radiator must be installed u progress & Q7. Values ??of C1 and C2 raised parts list is the minimum power required for a single-channel  amplifier . For best performance and the three-dimensional configuration, this value should be increased: 10000? F is a very good way. Proper grounding is very important to eliminate the hum and ground loop. Connected to the same point on the ground side R1, R3, C2, C3 and C4 and the ground input lines. Connect to C11 R7 and C7 output ground. Then connect the input and output, respectively, Ground Power Ground.

60 Watt MosFet Amplifier


R1______________47K   1/4W Resistor
R2_______________4K7  1/4W Resistor
R3______________22K   1/4W Resistor
R4_______________1K   1/4W Resistor
R5,R12,R13_____330R   1/4W Resistors
R6_______________1K5  1/4W Resistor
R7______________15K   1/4W Resistor
R8______________33K   1/4W Resistor
R9_____________150K   1/4W Resistor
R10____________500R   1/2W Trimmer Cermet
R11_____________39R   1/4W Resistor
R14,R15___________R33 2.5W Resistors
R16_____________10R   2.5W Resistor
R17_______________R22   5W Resistor (wirewound)

C1_____________470nF   63V Polyester Capacitor
C2_____________470pF   63V Polystyrene or ceramic Capacitor
C3______________47µF   63V Electrolytic Capacitor
C4,C8,C9,C11___100nF   63V Polyester Capacitors
C5______________10pF   63V Polystyrene or ceramic Capacitor
C6_______________1µF   63V Polyester Capacitor
C7,C10_________100µF   63V Electrolytic Capacitors

D1___________1N4002   100V 1A Diode
D2_____________5mm. Red LED

Q1,Q2,Q4_____MPSA43   200V 500mA NPN Transistors
Q3,Q5________BC546     65V 100mA NPN Transistors
Q6___________MJE340   200V 500mA NPN Transistor
Q7___________MJE350   200V 500mA PNP Transistor
Q8___________IRFP240  200V 20A N-Channel Hexfet Transistor
Q9___________IRFP9240 200V 12A P-Channel Hexfet Transistor

Power supply circuit diagram:

60 Watt MosFet Amplifier Power Supply


R1_______________3K9   1W Resistor

C1,C2_________4700µF  63V Electrolytic Capacitors (See Notes)
C3,C4__________100nF  63V Polyester Capacitors

D1_____________400V 8A Diode bridge
D2_____________5mm. Red LED

F1,F2__________4A Fuses with sockets

T1_____________230V or 115V Primary, 30 30V Secondary 160VA Mains transformer

PL1____________Male Mains plug

SW1____________SPST Mains switch

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