It is obvious that this feature is the ability TDA8560-operate on two pairs of 4 * Ohm speaker can announce one-chip whole interior of the car – a pair of speakers in the doors, a couple on the back of a shelf – and all this with the total capacity – 80 W!
parts list :
DA1 – TDA8560
C1 = C2 = 0,22 mF (0, l, 0,15 mF)
C3 = 470 mF (mF 1 … 1000 U> 16V)
R1 = R2 = 10 k (5,6 12k)arts list
Recommendations:
1) The signal at the input of the car amplifier can be fed to the line-out (if any) or take the signal from input amplifier own radio (after volume control) can also remove the signal from the output resistors on the columns drawn in the diagram the dotted line (R *) is desirable to put in a chip with high-gain), their face value should be 20 … 50 ohms if the input signal amplitude of about ~ 250 mV (standard output) and 100 200 ohms, if the signal is removed from the output to the speakers
2) The Car Amplifier 2x40W at TDA 8560 Q must be installed on the heatsink (not less than 200 cm2)
3) To maintain a dynamic power amplifier is helpful to include parallel power supply (+12 to earth) high-capacity electrolytic capacitor 4700 … 10000 mF x16V then the power will not squander the passage of the peaks of maximum power is strictly prohibited to alter food + and close to the exits to +12 V to ground and to each other in any order
If you connect the amplifier to the woofer, it is recommended to use low-pass, or entrance, or exit (preferably at the entrance) software includes:
If the input signal = 200 250 mV, then R * is not put, if the input signal = 3 … 4 V (output for speakers)
then R * is placed and is 100 … 300 Ohm Such a filter has the following parameters cutoff frequency 50Hz, recession – 18 dB / octave
In the case of an car amplifier in the home power supply should have the recommended settings, the transformer with overall capacity of 80 100 W, the secondary winding – for a current to 4 A (Rl = 4 Ohm) or 7.5 A (Rl = 2 ohms) * C – the more the better (ideally 47 000 mF)
Class-D Power Audio Amplifier Using MD7120 MOSFET Driver This is the circuit design of Class-D…
This is the circuit diagram of active antenna amplifier for FM radio device. With only…
This is the schematic design of 400 Watt 70 Volt amplifier capable to deliver about…
This is the circuit diagram of 150W power amplifier which built using power transistors. The…
This is the circuit design of 1000W stereo audio amplifier. It is a very good…
This is the circuit design of 150W car audio amplifier. The circuit is divided in…