Power Amplifier

IC TA7066P is original monolithic Intregated Circuit Audio Power Amplifier. Package IC is SIP10-16 and manufactered by TOSHIBA.  The above sequence is a series of low-grade intregated circuit amplifier , which was very small output . But this amplifier is very high impedance power output. For more details , see description below. Technical information : Min. Voltage   : 8   Volts DC Max. Voltage  : 25 Volts DC Max. Power    : 0,3 Watts Impedance      : 150 Ohms Min. Currents : 2,8 mA

This is power amplifier circuit using IC AN7108 as based for amplifier. See this circuit diagram below: Datasheet IC AN7108 Vcc                = 1-6,6 V Pout               = 2X 30 mW RL                 = 32 Ohm Ft                   = 20-20 Khz Icco               = 14 mA Package         = DIP-16 Manufactered = MATSUSHITA

This Circuit Audio Amplifer with IC TBA 611 require voltage  4,5 to 15 Volt. I recomended to this circuit supply with 12 volt . Output audio is mono with power 1 Watt. See this circuit and datasheet IC TBA611 below: Datasheet IC TBA 611 Vcc                = 4,5-15 V Pout               = 1 W RL                 = 8 Ohm Ft                   = 50-15 Khz Icco               = 10 mA Package         = TABS4-14 Manufactered = RFT

Circuit Audio Amplifer with IC TBA810 See this Circuit Below: Datasheet IC TBA 810 Vcc                = 4-20 V Pout               = 7 W RL                 = 4 Ohm Ft                   = 30-18 Khz Icco               = 13 mA Package         = TABS3-12 Manufactered = ITT other IC TBA 810 , In this circuit you can use the following  IC  :  A205K A208E A208K A210E A210K DG810 K174YH7 K17YH9 MA873 TBA310AS TBA790D TBA790U TBA790S TBA810AS TBA810AT TBA810DS TBA810DAS TBA810S TBA810T TCA15OD TCA15OU TCA15OS TCA15OT TCA830 TCA830A TCA830S TCA940 TCA940E UL1440 UL1481P Equivalent IC TBA810

See below this circuit: Datasheet IC TDA 1521 : Vcc                = 6-30 V Pout               = 2X 6W RL                 = 8 Ohm Ft                   = 20-20 Khz Icco               = 40 mA Package         = SIP 1-9 Manufactered = Siemens

Technical information Datasheet IC 5G37 Vcc                = 6-12 V Pout               = 0,4 W RL                 = 8 Ohm Ft                   = 40-17 Khz Icco               = 15 mA Package         = TABS1-14 Manufactered = China

This time, there is a series of audio amplifer 20W as well, but using IC TDA 2005 as a series of his base amplifier. The series of 2x20 Watt Audio Power Amplifier using TDA2005 can you see in the picture below. Technical Data: Performance of TDA2005M: (for this circuit); At 4.14 V supply voltage: 2 x 20 watts (stereo) into 4 Ohms. Distortion: Approx. 0.2% at 4 Watts into 4 ohm load. Frequency Range: Approx. 20 Hz to 22 KHz. Input Sensitivity: Approx. maximum 150 mV rms. . Power supply: + 8 to 18 volts, approx. 3.5 Amps maximum per channel. source [ link ] 

Power supply circuit to generate output below were variations between 1.3V DC to 12.2V DC with 1A current. In addition, the power supply circuit is also equipped with over-current protection or shield against belebih flow. Power supply circuit is very simple, but the quality is quite good, made her basiskan regulator IC LM723 is a pretty legendary. Description: R2 to set the output voltage. The maximum current is determined by R3, over-current protection circuit inside the LM723 to detect the voltage on R3, if it reaches 0.65 V, the voltage output will be off her. So the current through R3 can not exceed 0.65 / R3 although output short-circuit in his. C3 and C4 are ceramic capacitors, as much as possible directly soldered to the PCB, this is because the LM723 is prone to oscillation that is not cool. LM723 works with 9.5V input voltage to 40 V DC and the LM723 can generate its own current of 150mA when the output voltage is not more than 6-7V under input voltage. Specifications: Output...

Mini 3 transistor amplifier is a simple amplifier with 50mW power drawn by 3 transitor. The series of three mini-amplifier transistors can be used for loud speaker 8 ohm load. Source voltage required to activate the mini-amplifier can be drawn from the batteries 9V.Rangkaian 3 transistor amplifier is often used in simple portabe audio devices such as radios or small tape recorder. Mini-transistor amplifier circuit 3 is quite simple as shown in the figure below. Mini-transistor amplifier circuit 3 includes type of amplifier OTL (Output Transformer Less). Mini-transistor amplifier circuit 3 is used for output coupling capacitors. Amplifier circuit is simple and suitable when used for audio amplifier experiment.

Amplifier circuit below represents a very small amplifier circuit output. Maximum output is no more than 1W, comprehension is low but received a series of sensitive enough, and power amplifier circuit is very suitable for use in radio receiver, especially on FM radio. Technical information. Minimum Voltage = 4 Volt DC Maximum Voltage = 15 Volt DC Power Output         = 0,325 W RL                          = 8 Ohm Ft                            = 40Hz - 18KHz Icco                        = 6mA Part List : R1 = 100K R2 = 2,7R R3 = 1K C1 = 100uF C2 = 220uF C3 = 47uF C4 = 0,01uF

This time I will share a circuit of schematis power amplifier with LM380 IC that has similarities with LM384. Enough with just a few components you have to make this power amplifier circuit . All components with relatively low prices and making a fairly easy. For this amplifier output power has 3W with 4 ohm impedance. Indeed , this amplifier has the output is quite low and certainly will not be maximal if it works on the speakers with high power. Component List : Resistor R1______________47K R2______________2.7R 2W Capacitor C1______________10uF C2______________470uF C3______________100n C4______________100n IC IC1_____________LM380 , LM384

Basiccally,this amplifier works with the IC, which is where ic is associated with several other components in the supply and use DC voltage, which corresponds to the needs of IC above course on the circuit schematic. For IC , stands intregated circuit used is ic LM379 which has a maximum 6 Watt stereo output. This IC manufactered by NS and with SDIP-14 package. While other components needed in the circuit schematic , you can see components of the list below. Component List : Resistor R1___________________2K R2___________________2K R3___________________33K R4___________________33K R5___________________1M R6___________________1M R7___________________10R 2W R8___________________10R 2W Capacitor C1___________________4.7uF C2___________________4.7uF C3___________________470uF C4___________________470uF C5___________________470uF C6___________________100n C7___________________100n IC IC1___________________LM379

Various needs of the amplifiers are all different. Different places and use also requires a different power amplifier as well. For this time i gave a circuit schematic power amplifier based on LM377 ic that has similarities with the LM378 and LM1877. Power is smoothly small ouput is 2 X 2.5 Watt and the impedance 4 ohms. Use of this amplifier suitable for portable radio tuner that can be taken every where. Component description : Resistor R1___________________2K R2___________________2K R3___________________1M R4___________________1M Capacitor C1___________________4.7uF 50V C2___________________4.7uF 50V C3___________________100n C4___________________100n C5___________________470uF 50V C6___________________470uF 50V IC IC1__________________LM377 , LM378 , LM1877

LA4145 an IC with SIL-9 package and manufactered by SANYO. This ic has miraculous equation with LA4146 and LA4147, so if you do not have the IC LA4145 but you have IC LA4146 or LA4147 , you still can make the above amplifier circuit. The circuit includes circuit of classes on low power because it has low output is 1W with 8 ohm impedance. Technical information : Min. Voltage = 6 Volts Max. Voltage= 12 Volts P. Out            = 1 Watt RL                 = 8 Ohm Ft                  = 40Hz - 17 Khz Icco              = 10 mA You can use to  : Tuner/ Radio Mini VCD/DVD Walkman Ipod/Ipad Mp3, Mp4 player etc.

Here i share power amplifier based on IC TDA7236 . This amplifier require minimum voltage 0,9 volt and maximum voltage is 1, 6 volt , its very low voltage amplifier. You can use this amplifier everywhere just with one battery 1,5 volt. Power output 16 mW with 32 ohms impedance. see circut below :

This circuit based on IC TDA7233 or you can use  IC TDA7233D . Minimum supply voltage 1,8 volts  and aximum voltage 15 volts. Power Output 1 Watt with 1 Ohm impedance. This circuit include mute switch, which allows you to the mute sound completely.

This Circut based on IC TDA7231 , Minimum voltage require 2 Volts and maximum voltage 15 volts . I recomended voltage is 12 volt DC. Power output 1,6 Watt with 4 Ohm impedance. See audio amplifier with IC TDA7231 below :

In this circuit requires only three components , namely IC TDA7052 , and 2 capacitor electrolyte. Actually , only with IC we are able to run this amplifier , but the sound less than the maximum. This amplifier circuit requires a minimum voltage of 3 volts and 15 volts maximum. Was 1 Watt power output with 4 Ohm impedance. See this circuit below : Just IC and 3 components we can make the circuit above.

This is very very simple circuit audio amplifier  based on IC7057T  , you just use 3 components you can make this circuit . And the minimum voltage is 1 Volts , with just 1 Volt  you can operate this amplifier. Maximum voltage 6,5 volts . Maximum Power output 35mW with 32 ohms impedance. See circuit below : Very simple stereo amplifier

Specification : This is stereo amplifier , based on IC TDA4920 , TDA4925 , TDA4930 . Minimum voltage require 9 volts and maximum voltage 13 volts . Maximum power output 2 x 15 Watts with 4 Ohms impedance. Quiescent current 30 mA. See audio circuit scheematic below :