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


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.

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.


Thursday, 5 April 2012

Power Amplifier 4 Transistor

Power Amplifier 4 Transistor
Above diagram very simple and easy to build class AB audio amplifier circuit which is working with 4 transistors. In class AB operation each output device performs more than half of the input signal cycle. Up to 78% effectiveness is possible with class AB designs and cross over distortion is minimized. The circuit shown here is appropriate for small radio receivers, audio players, intercom, phone etc.

Transistor Q1 with its connected parts is wired as a pre-amplifier stage. The audio input is coupled to the base of Q1 through resistor R1 and capacitor C1. Resistor R3 delivers collector to base bias for Q1 and C3 is an AC by pass capacitor for the collector resistor R4. Collector to base biasing is a great method of biasing for circuits like this because it provides enough negative feedback, prevents thermal runway and stabilizes the operating point. The second stage will be the driver stage for the push pull pair. Q2 with its connected parts carry out this job. This stage can also be collector to base biased, and its input is coupled towards the output from the pre-amplifier stage using capacitor C2. Resistor R8 limits the collector present of Q2.The third stage is the class AB push pull section comprising of transistors Q3 and Q4. Diodes D1 and D2 provides the bias voltage for the push pull stage. The output from the amplifier is coupled to the loud speaker through the capacitor C4. C5 and C6 are power supply filter capacitors.
  1. The circuit can be assembled on a vero board.
  2. K1 may be an 8 ohm/5Wof loud speaker.
  3. C6 must be grounded near towards the Q1 and C5 should be grounded near to the loud speaker ground. This reduces noise.
  4. Use 5V DC power supply for powering the circuit.

Monday, 2 April 2012

Skema Rangkaian Active Crossover Circuit

This alive Cantankerous over is adequately beeline forward. It consists of a absorber and two 3rd order, 18 dB per octave filters. One low canyon and the added high. The cantankerous over abundance is set at 2Khz and is advised for AEK’s 400watt per access PA/Keyboard Amp systems. Obviously alone one access is apparent here.
The band akin audio arresting enters the absorber area it is astern out of phase. This is to atone for

300W Subwoofer Power Amplifier Wiring Diagram

Please agenda that the blueprint for this amp has been upgraded, and it is now recommended for connected aerial ability into 4 Ohms, but You will charge to go to extremes with the heatsink (fan cooling is awful recommended). It was originally advised for “light” alternate duty, acceptable for an equalised subwoofer arrangement (for archetype application the ELF assumption – see the Project

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.

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

Wednesday, 21 March 2012

Skema Power Amplifier 2N3055

2N3055 Power Amplifier
Skema Rangkaian 2N3055 Power Amplifier
Amplifier power is a series of electronics that is used to strengthen the power (or energy in general). In the field of audio, amplifier will amplify the sound signal (which has been expressed in the form of electric current) on the input it into electric current is stronger at the output. The amount of strengthening is often known by the term gain. Value of the gain is expressed as a function of frequency is called the transfer function.

So the gain is the result of the power output (Pout) and power at the input to its function in the form of frequency. The size of the gain, (G) is usually the Decibel (dB).

Rangkaian TDA 2616 Hi-fi Power Amplifier

This circuit is a 2X12 watt Hi-Fi Power amplifier circuit using IC TDA 2616 from Phillips. This circuit very Simple and robust circuit using very less components makes the circuit ideal for a portable power amplifier. The circuit delivers 12 W power on 8 Ohm speaker for each channel at +/- 12 V dual supply.
TDA 2616 Hi-fi Power Amplifier Skema Rangkaian TDA 2616 Hi-fi Power Amplifier

Skema 200 watt Power Amplifier STK4050 II

Application Circuit Power Amplifier STK4050 II

Skema Power Amplifier STK4050 IISkema Specified Transformer Supply for 200 watt Power Amplifier STK4050 II
Supplay 200 watt Power Amplifier

Rangkaian Subwoofer 200 watt

Skema Rangkaian Subwoofer
Skema rangkaian Subwoofer
If we walk in the shop or mall and see the electronic equipment is high end, so sometimes we desire to have the equipment, for example, we see that a subwoofer bass sound is so excite. but for the price of our audio equipment may still include expensive

As an electrician we have any idea, how to make a quality subwoofer, such as not lose it in the store, but with an affordable cost.

Friday, 16 March 2012

Skema Audio Amplifier

60 watt Audio Amplifier

This circuit in the complete with bass-boost control on the fedback loop amplifier, this is done to overcome the declining quality of tone Bass. Graphic bass can reach a maximum at +16.4 dB @ 50Hz.

Circuit 60 watt Audio Amplifier
Note: Q3 and Q4 should be put in with the heatsinks.

Set the volume control on the position of the minimum and R3 with a minimum value resistansi also. try to switch the series and set up to R3 legible flow about 20 to 25mA