AmplifierCircuits

Audio Amplifier 100W or 130W ComponentRef./ValueTypeR1 120K 1/4W Resistor R2 3K3 1/2W Resistor R3 5K6 1/4W Resistor R4 3K3 1/4W Resistor R5 680R 1/4W Resistor R6 120R 1/4W Resistor R7 3K3 1/4W Resistor R8 1K2 1/4W Resistor R9 2K7 1/4W Resistor R10 1K5 1/4W Resistor R11 680R 1/4W Resistor R12 120R 1/4W Resistor R13 120R 1/4W Resistor R14 0,33R 5W Resistor R15 0,33r 5W Resistor R16 10R 1W Resistor R17 10R 1W Resistor C1 10uF 16V Electrolytic Capacitor C2 330µF 16V Electrolytic Capacitor C3 470uF 35V Electrolytic Capacitor C4 150pF Ceramic Capacitor C5 100nF 100V Polyester Capacitor RV1 1K Trimpot D1 9V1 - 500mW Zener T1 BC557 PNP transistor T2 BC557 PNP transistor T3 BC548 NPN transistor T4 BD137 NPN transistor T5 BD137 NPN transistor T6 BD138 PNP transistor T7 2N3773 NPN transistor T8 2N3773 NPN transistor L1 coil largest number of turns rolled in R16 with AWG22

Circuit Diagram: 100W AF Power Amplifier  Datasheet for STK4044: Download

Circuit diagram: 100 watt LM391 Audio Power Driver   Datasheet for  LM391: Download

General Description: The LM4732 is a stereo audio amplifier capable of typically  delivering 50W per channel of continuous average output  power into a 4Ω or 8Ω load with less than 10% THD+N from  20Hz - 20kHz.  The LM4732 has short circuit protection and a thermal shut  down feature that is activated when the die temperature  exceeds 150˚C. The LM4732 also has an under voltage lock  out feature for click and pop free power on and off.  Each amplifier of the LM4732 has an independent smooth  transition fade-in/out mute.  The LM4732 has a wide operating supply range from +/-10V  - +/-40V allowing for lower cost unregulated power supplies  to be used.  The LM4732 amplifiers can easily be configured for bridge or  parallel operation for 100W mono solutions. Circuit Diagram: 100W Audio Power Amplifier with Mute

Features Multipower BCD technology Very high operating voltage range (±50 V) DMOS power stage High output power (100 W into 8 Ω THD =10%, with VS = ±40 V) Muting and stand-by functions No switch on/off noise Very low distortion Very low noise Short-circuit protected (with no input signal applied) Thermal shutdown Clip detector Modularity (several devices can easily be connected in parallel to drive very low impedances) Description The TDA7293 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications, such as home stereo, self powered loudspeakers and Topclass TV. Thanks to the wide voltage range and to the high output current capability it is able to supply the highest power into both 4-Ω and 8-Ω loads. The built-in muting function with turn-on delay  simplifies the remote operation avoiding on-off switching noises. Parallel mode is possible by connecting several  devices and using pin11. High output p...