Rongge

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 :

Components of the above is one component of ic which is applied as a reinforcement. Power amplifier used in an audio signal in order to become more powerful and can be heard via a tool that is the speaker. But in each set must have a voice amplifier, voltage, power quality is different. For the IC has the output power above 2 X 40 Watt with 8 Ohm output impedance. Supply voltage ranging from 18 Volt to 32 Volt. Part List Resistor R1_____1K R2_____1K R3_____22K R4_____22K R5_____1K2 R6_____100K R7_____560R R8_____1K R9_____1K R10____470R R11____4R7 R12____3K3 R13____3K3 R14____4R7 R15____470R R16____100R R17____100K R18____1K2 Capacitor C1_____470pF C2_____470pF C3_____4u7F C4_____4u7F C5_____82pF C6_____82pF C7_____47uF C8_____100uF C9_____10nF C10____39pF C11____100nF C12____47uF C13____47uF C14____100nF C15____39pF C16____10nF C17____100uF C18____47uF Intregated Circuit U1_____STK4773 , STK4793 , STK4803 , STK4813 , 4833 , 4843 , 4853 , 4863 , 4873 , 4893 , 4913. On every IC that I m...

This amplifier circuit has a power output of a small or too low at 5.8 Watt, which uses IC KA2205. The required voltage for at least 6 volts to 18 volts DC maximum. Schematics power audio amplifier with IC KA2205 Component List C1 = 1uF C2 = 100uF C3 = 47uF C4 = 1000uF C5 = 0.1uF C6 = 220uF IC1 = KA2205

This is Stereo Amplifier On this schematic amplifier circuit  use the ic AN7145L , but can use the following IC : AN7145M AN7145H AN7146M AN7146H You can use of all ic above. anthis circuit need suply voltage with dual voltage . Minimum voltage 6 Volt and maximum voltage 20 volt . Voltage just (-) and (+), but (-) can also ground. Maximum power output 2 X 20 watt with minimum impedance 4 ohm. Click image to view enlarge. You can operate this circuit with  plugging input to , PC or other media can give signal audio.

  Mono Amplifier This amplifier use IC AN7154 , this is  minimum voltage for circuit is 9 volt and maximum voltage 18 volt with dual suplly voltage. Maximum power output 20 watt with minimum impedance 4 Ohm. This circuit equipped treebel booster , to maximum performance for treebel sound out. See amplifier schematic below : Click to view enlarge Voltage : 12 Volt Output : 20 watt

This  is low noise power amplifier , high output power amplifier for full range speakers, but you can use the woofer speakers to this circuit .  Maximum output power 60 Watt with impedance 4 Ohms see circuit below :   Description for circuit above : Minimum Supply Voltage   : 12-Volt DC Maximum Supply Voltage  : 25-Volt DC Maximum Power Output : 60 Watts Impedance Speaker : 4 Ohm Current Voltage : 3A

This is a 100 Watt Inverter Circuit Diagram with Veroboard Print (LOW COST). This 100 watt Inverter Circuit use Minimum number of Components.I think it is quit difficult to make a decent one like this with further less components.Here we use {CD 4047 IC} for generating the 100 Hz pulses and four {2N3055} Transistor for driving the load.The IC1 {CD 4047} wired as an Astable  multi vibrator produces two 180 degree out of phase 100 Hz pulse train.These pulse train are preamplifier by the two TIP122 100 Watt Inverter Circuit Diagram Transistor.The output of the TIP122 Transistor are amplified by fout 2N3055 Transistor {Two transistor for each of half cycle} to drive the inverter transformer.The 220 AC be available at a secondary of the transformer.Nothing complex just the elementary inverter principle and the circuit great for small load like a few savers or fans.This is LOW COST inverter only 7 $. Info     12v Car Battery can be use for this Inverter Circuit.  ...

  Mono Amplifier This amplifier use IC AN7154 , this is  minimum voltage for circuit is 9 volt and maximum voltage 18 volt with dual suplly voltage. Maximum power output 20 watt with minimum impedance 4 Ohm. This circuit equipped treebel booster , to maximum performance for treebel sound out. See amplifier schematic below : Click to view enlarge Voltage : 12 Volt Output : 20 watt

TA8233H Circuit Diagram Circuit diagram for 30 Watt x 2 CH AUDIO POWER AMPLIFER

This is a project of 22 Watt Car Subwoofer Amplifier Circuit Diagram. 22W into 4 Ohm power amplifier, Variable Low Pass Frequency: 70 – 150Hz . This unit is intended to be connected to an existing car stereo amplifier, adding the often required extra "punch" to the music by driving a subwoofer. As very low frequencies are omnidirectional, a single amplifier is necessary to drive this dedicated loudspeaker. The power amplifier used is a good and cheap BTL (Bridge Tied Load) 13 pin IC made by Philips (now NXP Semiconductors) requiring a very low parts count and capable of delivering about 22W into a 4 Ohm load at the standard car battery voltage of 14.4V. . 22 Watt Car Subwoofer Amplifier Circuit Diagram 22 Watt Car Subwoofer Amplifier Circuit Diagram Parts: P1_____________10K Log Potentiometer P2_____________22K Dual gang Linear Potentiometer R1,R4___________1K 1/4W Resistors R2,R3,R5,R6____10K 1/4W Resistors R7,R8_________100K 1/4W Resistors R9,R10,R13_____47K 1/4W Resistors ...

The above is a simple amplifier circuit also has a minimal power output. By using only a few components and a single IC as the basis for the strengthening of the amplifier, this circuit has a power output of not more than 2.5 W and impedance or RL 8. Requires a minimum voltage of this amplifier is around 6V and 26V maximum voltage, the voltage must be DC or already rectified and filtered. Part List : R1 = 1R C1 = 0.1uF C2 = 100uF C3 = 0.1uF C4 = 5uF C5 = 500uF C6 = 0.1uF IC = ULN2280B , ULN2281B , ULN3784B.

This is an amplifier circuit based on IC AN374 which has a 1 Watt output power with supply voltage and a maximum of at least 8 volts to 16 volts with the DC current. Following amplifier circuit 1 Watt l 8 - 16 Volts Audio Amplifier. 1 Watt l 8 - 16 Volts Audio Amplifier

These amplifiers using IC KA2202 and KA2207, which has a power output of 2.3 Watt berimpedansi 4 ohms. Minimum supply voltage and maximum 5Volt 20Volt. See schematics and component list below. Part List  R1 = 100K R2 = 56R R3 = 56R R4 = 1R Use 1/4 Watt resistor C1 = 100uF C2 = 100uF C4 = 100uF C5 = 470uF C6 = 100nF C7 = 470pF C8 = 2,2nF C9 = 100uF U1 = KA2202 , KA2207