40W bridge power amplifier Archives - Amplifier Circuit Design https://amplifiercircuit.net/tag/40w-bridge-power-amplifier Amplifier Project Schematic Diagram Fri, 23 Dec 2011 11:06:59 +0000 en-US hourly 1 103688205 40W / 2 ohm (24W / 4 ohms) Bridge Power Amplifier (Cheaper Version) https://amplifiercircuit.net/40w-2-ohm-24w-4-ohms-bridge-power-amplifier-cheaper-version.html https://amplifiercircuit.net/40w-2-ohm-24w-4-ohms-bridge-power-amplifier-cheaper-version.html#respond Mon, 17 Oct 2011 02:28:10 +0000 http://amplifiercircuit.net/?p=668 It is possible to simplify the assembly to have a cheaper version of 40W / 2 ohm (24W / 4 […]

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]]> 40 w bridge amplifier simplifiedIt is possible to simplify the assembly to have a cheaper version of 40W / 2 ohm (24W / 4 ohms) bridge power amplifier, as shown in the above diagram. Small refinements that ensure the reliability in the previous assembly had disappeared, but that does not mean that this simplified installation will not work correctly.

Note on the capacitor C8 : there are patterns in which the capacitor is present, the other where it does not appear.

Parts list :
R1 : 620 ohm
C1 : 1 uF
C2 : 10 uF
C3 : 100 nF
C4 : 100 uF
C5, C5' : 100 nF
C6 : 1uF
C7 : 100 nF
C8 : 1 nF
U1 : TDA 2003

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]]> https://amplifiercircuit.net/40w-2-ohm-24w-4-ohms-bridge-power-amplifier-cheaper-version.html/feed 0 668 40W / 2 ohm (24W / 4 ohms) bridge power amplifier https://amplifiercircuit.net/40w-2-ohm-24w-4-ohms-bridge-power-amplifier.html https://amplifiercircuit.net/40w-2-ohm-24w-4-ohms-bridge-power-amplifier.html#respond Wed, 12 Oct 2011 06:34:28 +0000 http://amplifiercircuit.net/?p=638 This bridge power amplifier, without great pretensions, is simple to perform, and works with a single power supply of 18 […]

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]]> 40 w bridge amplifierThis bridge power amplifier, without great pretensions, is simple to perform, and works with a single power supply of 18 V. It is based on the use of two amplifiers type TDA2003, capable alone to deliver a power of about 10 W (10% distortion, limited to 7.5 W at 0.15% distortion) .

Mounted in bridge amplifier these two circuits can deliver the Honourable power of 40 W with an 2 ohm headphone. Using a 4-ohm headphone will still release a power slightly greater than 20 W. The bandwidth extends from 40 Hz to 15 KHz, and power ratings are valid for a harmonic distortion less than 0.15%.

This bridge power amplifier circuit requires a voltage of 18 V maximum and should not be exceeded. While the system supports a higher voltage (up to 28 V) output, but the symmetry is no longer guaranteed, so it is not possible to get more power with 18 V, without distortion. Note that you can also choose to supply low voltage, 12 V, for example, if you just need a little power and does not require a power of 40 W.

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