ApeX B500 Amplifier Circuit

Today,We have high power amplifier circuit of ApeX that you know this brand name.

B500, the B250 is based on a number of benefits, and the limiter circuit, schematic and PCB for the same use with B500 and three pairs of + /-65V rails get B250 add.
 You need 500W, 12V to + /-55V DC / DC converter and you can use B500 Auto 2 ohms.
 Director is separate circuit and amplifier can be used to get with every class H amplifier classAB.
 B500 and H900 not step B500 is classAB driver amplifier is Class H and H900 integrited stage driver amplifier.

 If you are found in , we fixed the problem. I was too tired when I measured the track and I have an old 24V fan, and for some reason does not change its speed when the circuit was 24V. Anyway, I’ve now finished for another security, and it works very well (I think). Here are PCB and electronic components layout:

ApeX Audio Amplifier Component Layout and PCB

 For this circuit 625mV. at BD241C at 25 degrees C, gets fans 12V
 If it falls to 440mV, 21V fan gets (I do not know why not 24?) At this point I could barely touch BD241C
 340mV on the protection of LED lights and the relay.
 If the component cools, the relay again.

The TDA1010 is a monolithic integrated class-D audio amplifier circuit in a single pass 9-in-line (SIL) plastic.

 6 W audio power amplifier in car applications 10 W audio power amplifier in mains-fed applications.

The device is designed primarily as an amplifier to 6 W car radio to be used with 4 wall 2 impedances Wload. The wide voltage range power and flexibility of the IC is an attractive proposition for the turntables and tape recorders with output power up to 10 W.

6W audio amplifier cirucit

The wide voltage range makes this circuit ideal for applications in the area and the battery-FED devices such as televisions and turntables. The volume control stage has a DC logarithmic control characteristic with a reach of over 80 dB, control is by a variable DC voltage from 2 to 6.5 V.

60w audio amplifier circuit vol2

If you want to build, you need to find a good project. As I said earlier, I built and I am very happy. The amplifier is of such a system driver booster high ideal bi-amp circuit with a simple single-supply. It is as if all amplifiers must be stable, but it means nothing to me, like many of my old drawings were unstable. This amplifier is by far the easiest and most stable I built.

To install it, set the maximum force 470K potentiometer. Measurement of the current amplifier and slowly adjust the resistance of the VR1,VR5 to read 1.65 to 1.7 was reached.

Electronic project contains the essential elements for building a HiFi Amp module using the LM1875 chip.

This project contains the essential elements needed to build an amplifier module for high fidelity with the National Semiconductor LM1875 IC. With the addition of a handful of parts and an adequate supply, this module provides 25W RMS into 8 ohms @ 1% THD.

PCB dimensions are a tiny 53 x 50mm (2.1 “x 2″). Heatsink, power transformer, speaker and cables are not included. (CPS50)
 

This project contains the essential elements needed to build an amplifier module for high fidelity with the National Semiconductor LM1875 IC. With the addition of a handful of parts and an adequate supply, this module provides 25W RMS into 8 ohms @ 1% THD.

25 Watt HiFi audio Amplifier Circuit

The project is built on a single side PCB. Protel Schematic & Autotrax were used in conception.

25 Watt LM1875 Implementation of components containing PCBs
Data to be provided to you:

Heat sink with a thermal resistance of 1.4 C / W or higher. Use the washing of silicon impregnated in the event of attack on the chip.
Speaker 8 ohm adequate power
Suitable cables.
Solder the power cables and audio directly on the pad provided on the PCB.

25Watt Hifi Amplifier PCB

The chip can be used with two agreements that provide single and dual power. We decided to use the dual fuel version. Version only offering that require the use of electrolytic capacitors 63V, thus increasing the cost and overall size of the module.

The input signal is coupled with R1 and C1 for the non-inverting input (pin 1) of the integrated circuit. Closed-loop gain of the amplifier is set at 19 by resistors (180K) and (10K). and C (22uF) in 3dB frequency point 7Hz.

The output appears on pin 4 of IC and drives a speaker directly. Speakers can produce long enough capacity to drive the amplifiers in the VHF oscillation. Resistance R6 (1W) and capacitor C4 (0.22UF) to help prevent this. They are linked through the production and the form of a Zobel network, which provides high frequency stability when driving capacitive loads.

The power supply integrated circuit is connected via 2A fuse for protection against external shorts to ground. Provide additional decoupling capacitors Supply Board.

The module is powered by a dual + / – 25V supply. These guides are provided by a separate power supply board. Consists of four diodes (1N5401) connected as a rectifier bridge and four electrolytic capacitors (2200uF) to soften wrinkles.

The power transformer used to power the module should be assessed at 60VA with a center-operated 35V secondary winding. A 30V transformer secondary winding can also be used, but the lower output DC would lead to reduced power.

If you want to run two modules in a stereo amplifier, you can use a common food. In this case, the RANSFORMER should be valued at 80VA.

Test

Before the switch, verify that all parts are inserted in the correct positions. Make sure that the electrolytic capacitors are in the right direction. Connect the power leads with a multimeter (set to read amps) in series with the positive rail. Do not connect a speaker or an audio input yet.

Turn on and check the current stabilizes at 50-70mA. There will be a brief charges that Suge main filter capacitor. You must have installed the radiator, otherwise the overload protection circuit to reduce the heat in and out.

If the quiescent current is correct, check the DC offset voltage at the terminals of the speakers. It must be less than + / – 50mV. If all goes well, switch off the device and connect a speaker and an audio signal input.

18Watt amplifier circuit

TDA2003 is a BCL (bridge amplifier is used) and deliver a car to 18W.
TDA-series integrated circuits are well apreciated and used in the amplifier designs and projects. TDA audio amplifier circuits are usually manufactured in Philips and SGS-Thomson.
The most commonly used IC TDA2030 is a small audio amplifier TDA7294 sets and for higher power amplifiers.
In this article we present some representative diagrams of the amplifier circuit TDA: car and home audio amplifier with notes under each diagram.
TDA2003 is a cheap amplifier that is intended to be on a single rail power supply (running unipolar). Provides high output currents (up to 3.5 A), very low harmonic and crossover distortion.

18W Amplifier PCB with TDA2003

The performance is dependent on supply voltage and load resistance. More than 10 watts for 2 ohm speakers with a typical 16V supply, 9V power supply with 8 ohm speakers can be about 1W. Volume potentiometer and coolers provided.