Showing posts with label Amplifier. Show all posts
Showing posts with label Amplifier. Show all posts

Saturday, 27 July 2013

Skema Rangkaian Power Amplifier TDA7265

Ada permintaan dari sahabat Facebook mengenai Rangkaian Amplifier IC TDA7265Kebanyakan orang tertarik dengan rangkaian TDA7265 ini karena rangkaiannya cukup simpel tidak membutuhkan banyak komponen. Rangkaian ini banyak diaplikasikan terutama untuk audio TV high-end dan audio mobil.


Data Pin IC TDA7265 dan Spesifikasi :
TDA7265 suplai tegangan kisaran ± 25V
THD = 10%
Direkomendasikan suplai tegangan ± 20V
Batasi pasokan tegangan ± 25V
TDA7265 DIP 11-pin paket ZIP fungsi pin adalah sebagai berikut:
1, pasokan negatif
2, output saluran pertama
3, pasokan positif
4, output saluran kedua
5, kontrol memadamkan
6, pasokan negatif
7, input saluran kedua
8, umpan balik saluran kedua
9, tanah
10, pertama saluran umpan balik
11, masukan saluran pertama


Diagram rangkaian TDA7265 model BTL:

 

Menurut data resmi, kekuatan pasokan ± 16 VBTL kerja TDA7265, juga bisa mendapatkan 50W kekuatan untuk bekerja karena arus BTL, tegangan suplai yang lebih rendah dibandingkan dengan cara normal, sebaiknya tidak lebih dari yang direkomendasikan ± 20V.

Source:  http://www.182e.com

Saturday, 23 June 2012

Rangkaian Amplifier 8 Watt dari IC TDA2030

Rangkaian Amplifier 8Watt dari IC TDA2030 ini sangat sederhana, bisa untuk audio komputer anda atau radio juga media player dan lain lain. Untuk stereo anda tinggal membuat satu lagi rangkaian seperti ini.


Notes:
Although the TDA2030 is capable of delivering 20 watts of audio power, I deliberately reduced the output to about 8 watts to drive 10 watt speakers. This is more than adequate for a smaller room. Input sensitivity is 200mV. Higher input levels naturally will give greater output, but no distortion should be heard. The gain is set by the 47k and 1.5k resistors. The TDA2030 IC is affordable and makes a good replacement amplifier for low to medium audio power systems. Incidentally, it is speaker efficiency that determines how "loud" the sound is. Speaker efficiency or sound pressure level (SPL) is usually quoted in dB/meter. A speaker with an SPL of 97dB/m will sound louder than a speaker with an SPL of 95dB/m.

Source:  http://www.zen22142.zen.co.uk

Wednesday, 2 May 2012

Rangkaian Power Amplifier 1000 Watt

Kumpulan Skema Elektronika. This is a audio power amplifier Blazer circuit provides up to 1000Watt . This interesting routes many good bass and treble alive. Importantly should choose Power supply source, which has been fairly high voltage class 70Vdc GND -70V 10A is the current low level
Rangkaian Power Amplifier Blazer 1000 WattSkema Rangkaian Power Amplifier Blazer 1000 Watt

The transistors are 2SC3858 (NPN) and 2SA1494 (PNP), and feature high bandwidth, excellent safe operating area, high linearity and high gain. Driver transistors are 2SC5200 (NPN) and 2SA1943 (PNP). All devices are rated at 230V, with the power transistors having a 150W dissipation and the drivers are 50W.

This circuit describes an amplifier, power supply and tests procedures that are all inherently dangerous. Nothing described in this article should even be considered unless you are fully experienced, know exactly what you are doing, and are willing to take full 100% responsibility for what you do. There are aspects of the design that may require analysis, fault-finding and/or modification.

Skema Rangkaian 400W MOSFET Amplifier

Kumpulan Skema Elektronika. These amplifiers circuit can be used for virtually any application that requires high performance, low use Noise, distortion and excellent sound quality. Examples would be subwoofer amplifier should FOH stage Amplifiers, surround a canal a very powerful sound amplifier, etc. The 400W MOSFET-amplifier has four key stages of amplification. We are looking to start any Phase appropriate detail.
Rangkaian 400W MOSFET  AmplifierSkema Rangkaian 400W MOSFET Amplifier

Note:
  • Use + /-70V 10A DC dual supply for powering the circuit.
  • For L1 make 12turns of enameled copper wire on a 1cm him: plastic formers.
  • use 8 x IRFP448 MOSFETs in the final stages
  • Heat sink is Necessary for the MOSFETs. A 8x4x4 inch finned aluminum heat sink will do. There is no such thing as a heat sink That is too large.

As the name suggests All Q ,C and ZD the Bias and buffer phases. Its main goal is to provide a stable MOSFET Gates and offset voltage and the voltage buffer amplifier stage of the High Resource capacity. What would have without the phase response and the effect Slew rate is indeed very bad. The flip side of the coin is not the extra step Introduction of an additional dominant pole in the amplifier feedback loop.

Also to what the name suggests this stage converts the voltage developed in the VAS and provides all the amps required to drive at 8 or 4 ohms. 2-ohm loads are possible for several minutes at a time. In fact, I have tested more than 1600 1kW amplifier Watts RMS at 2 ohms. But that would not be recommended as a long-term exposure at all. If it is higher than the figures of the STI-amp. Power to the AV amplifier 800 The components of the power for this amplifier are as follows, and are favored A channel or a power module alone. 1 toroidal transformer with a rating of 1kVA. Primary windings are made to fit

Monday, 2 April 2012

Power Amplifier for Laptop

Usually, the audio output from a laptop’s built-in speakers is low. A power amplifier is required to get a high volume. Here is a simple circuit to amplify the laptop’s audio output. The circuit is built around power amplifier IC LA 4440 (IC1) and a few other components. LA4440 is a dual channel audio power amplifier. It has low distortion over a wide range of low to high frequencies with good channel separation. Inbuilt dual channels enable it for stereo and bridge amplifier applications.


In dual mode LA4440 gives 6 watts per channel and in bridge mode 19- watt output. It has ripple rejection of 46 dB. The audio effect can be realized by using two 6-watt speakers. Connect pins 2, 6 and ground of IC1 to the stereo jack which is to be used with the laptop. Assemble the circuit on a general-purpose PCB and enclose in a suitable cabinet. The circuit works off regulated 12V power supply. It is recommended to use audio input socket in the circuit board. Use a proper heat-sink for LA4440.

Wednesday, 28 March 2012

Car Subwoofer Amplifier Driver


The stereo signals coming from the line outputs of the car radio amplifier are mixed at the input and, after the Level Control, the signal enters the buffer IC1A and can be phase reversed by means of SW1. This control can be useful to allow the subwoofer to be in phase with the loudspeakers of the existing car radio.

Guitar Amplifier Schematic Diagram 100W


Rangkaian Power Amplifier BTL

Power Amplifier BTL
Gambar Rangkaian Power Amplifier BTL
Audio amplifiers operate either in a BTL (bridged) or single-ended ("normal") configuration. In the single-ended setup, the output lead goes to the "hot" or "+" side of the load (speaker or speaker box since we are talking audio) and the "-" or "negative" side of the load is tied to a common ground shared with the amplifier. In the BTL configuration, one amp is connected to the "+" side of the speaker (load) and a second amp is connected to the "-" side of the load. For this to work, the output signal from the second amplifier must be a "mirror image" (identical in every respect, but 180 degrees out of phase) of the output from the first amp. The BTL configuration is most often seen in low-voltage, battery-powered applications (like cell phones or "walkman" type personal tape or cd players etc) or in automotive applications over about 10 watts per channel.

Monday, 26 March 2012

20 Watt Power Amplifier

This IC chip was designed specifically for use in power boosting applications in automobiles. It is self protecting against short circuits and thermal problems. In the bridge configuration shown it will deliver 20 watts of power into a 2 ohm speaker operating at 14.4 volts.

Sub-Woofer Amplifier 100 Watt

This is the circuit of subwoofer amplifier. This amplifier can produce an output of 100Watt. There are seven transistors including four in the output stage. The transistors Q1 and Q2 form the preamplifier stage. Transistors Q4 to Q7 form the output stage. Since no ICs are used the circuit is very robust and can be easily assembled on a general purpose PCB.
100 watt sub-woofer amplifierSkema rangkaian 100 watt sub-woofer amplifier