Car power amplifier

22 Watt Car Subwoofer Amplifier

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. [...]
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
R11,R12________15K 1/4W Resistors
R14,R15,R17____47K 1/4W Resistors
R16_____________6K8 1/4W Resistor
R18_____________1K5 1/4W Resistor
C1,C2,C3,C6_____4µ7 25V Electrolytic Capacitors
C4,C5__________68nF 63V Polyester Capacitors
C7_____________33nF 63V Polyester Capacitor
C8,C9_________220µF 25V Electrolytic Capacitors
C10___________470nF 63V Polyester Capacitor
C11___________100nF 63V Polyester Capacitor
C12__________2200µF 25V Electrolytic Capacitor
D1______________LED any color and type
Q1,Q2_________BC547 45V 100mA NPN Transistors
IC1___________TL072 Dual BIFET Op-Amp
IC2_________TDA1516BQ 24W BTL Car Radio Power Amplifier IC
SW1____________DPDT toggle or slide Switch
SW2____________SPST toggle or slide Switch capable of withstanding a current of at least 3A
J1,J2__________RCA audio input sockets
SPKR___________4 Ohm Woofer or two 8 Ohm Woofers wired in parallel

Author: RedCircuits – Copyright: www.redcircuits.com
Source: http://www.extremecircuits.net/2010/06/22-watt-car-subwoofer-amplifier.html

Be the first to comment - What do you think? Posted by admin - June 13, 2010 at 9:26 pm

Categories: Car power amplifier Tags: CAR Audio amp, subwoofer amplifier

200 Watt power Amplifier for car by 2SC2922+2SA1216

Today we try to come to see the idea power Amplifier for Car. I sees this circuit , designed come to well. There is tall drive arrives at 200W is the character Amp OCL very be Class AB amplifier make good moderately sound. Besides still systematically protect excellent loudspeaker. But I thinks this circuit may inappropriate with a novice. Because of use many equipments, circuit absorb overlap , must fine decorate thoroughly. But friends at like sound good quality As a result be worthwhile very. See be circumspect in power Amplifier for car circuit get yes.

Be the first to comment - What do you think? Posted by admin - September 3, 2008 at 10:51 am

Categories: Car power amplifier, Power Amplifier Tags: class AB Amplifier, ocl amp, power-amplifier-transistor

16 W amplifier by LM383

This circuit provides 16 watts of amplification. it is built using two LM383 power audio amplifiers. use suitable heat sinks with the ic.

Part
U1 U2 LM383 8 watt audio amplifier ic
R1, R3 220 ohm resistor
R2, R4 2.2 ohm resistor
R5 1 megohm resistor
R6 100k audio taper potentiometer
C1, C7 10uf electrolytic capacitor
C2, C5 470uf electrolytic capacitor
C3, C4, C6 0.2uf ceramic capacitor
SPKR1 4 to 8 ohm speaker (up to 8 inches diameter)

Read More Source: http://www.reconnsworld.com/audio_16wattamp.html
Thank you.