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Statistics |
| Unique Visitors: 720 |
| Total Unique Visitors: 4049808 |
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| Total Visitors Out: 62713 |
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| STK1050 Audio Amplifier 50W |
| 2011-11-13 16:51:00 |
The following is the audio amplifier circuit which built based single power IC STK1050 from Sanyo. The ciruit capable to deliver up to 50W power audio output. Don forget to mount the heatsink to the power IC STK-1050STK1050 Audio Amplifier CircuitSTK1050 Features:Does not require externally connected emitter resistors.Values of emitter resistors have carefully been reviewed to provide superior characteristics.Better supply voltage utilization permits designing power supply voltage that are about 0.7V (for RL=4ohms) lower than those required for previous DPP models.Maximum allowable power consumption for each resistor is 5W or higher, permitting accomodation for all loads.Peak allowable current is 18A or more, providing an ample margin even for peak currents under when short circuited or si...
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| LM4906 Very Simple Mini Amplifier Circuit |
| 2011-11-13 16:36:00 |
The LM386 is an excellent choice for many designs requiring a small audio power amplifier in a single chip. However, the LM386 requires quite a few external parts including some electrolytic capacitors, which unfortunately add volume and cost to the circuit. The LM4906 is capable of delivering 1 watt of continuous average power to an 8-ohm load with less than 1% distortion (THD+N) from a +5 V power supply. The chip happily works with an external PSRR (Power Supply Rejection Ratio) bypass capacitor of just 1 µF.LM4906 Simple Mini Amplifier CircuitLM4906 PinoutThe LM4906 also has an internal selectable gain of either 6 dB or 12 dB. A bridge amplifier design has a few distinct advantages over the single-ended configuration, as it provides differential drive to the load, thus doubling output...
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| TDA8551 Small Audio Amplifier Circuit |
| 2011-11-13 16:16:00 |
The TDA8551 is a small audio amplifier with an integrated volume control. When operated from +5 V, it delivers a nominal output power of more than one watt into 8 ohms. It can also be used over a supply voltage range of +2.7 to +5.5 V, with correspondingly reduced output power. The output volume can be adjusted from –60 dB to +20 dB in 64 steps, using a set of up and down push-buttons. The shared UP/DOWN input for the up and down switches has three states. If it is ‘floating’, which means that both of the switches are open, the volume remains unchanged. A pulse to earth decreases the volume by 1.25 dB, while a positive pulse increases the volume by 1.25 dB.TDA8551 Small Audio Amplifier CircuitTDA8551PinoutThe loudspeaker is connected in a floating configuration between the two outpu...
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| LM4663 Mini Amplifier Circuit |
| 2011-11-13 15:45:00 |
This circuit is a 2.5W stereo power amplifier using LM4663. The LM4663 is a fully integrated single supply, high efficiency Class D audio power amplifier solution. The LM4663 utilizes a continuous time delta-sigma modulation technique that lowers output noise and THD when compared to conventional pulse width modulators. LM4663 Mini Amplifier Circuit LM4663 PinoutThe LM4663 also features a stereo headphone amplifier that delivers 80mW into a 32Ω headset with less than 0.5% THD. The LM4663 has two stereo inputs that can be selected to drive either the headphone amplifier or the Class D amplifier. All amplifiers are protected with thermal shutdown.In standby mode, the LM4663 draws an extremely low 2µA supply current. With a 4Ω load, the IC's efficiency for a 250mW power l...
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| Op-Amp TL081 Audio Amplifier 12W |
| 2011-10-31 14:47:00 |
This is a circuit of audio amplifier that can deliver 12W to an 8 Ohm speaker. Op amp (TL081) is used as the preamplifier here. Actually any opamp with matching power supply ratings can be used instead of TL081.Transistors Q1 (TIP125) and Q2 (TIP120) comprises the power amplifier stage. Output is taken from the collector junction of two transistors.Op-Amp TL081 Audio Amplifier CircuitOp-Amp TL081 PinoutNote:Heat sinks are recommended for the transistors.A +15V/-15V dual DC power supply can be used to power the circuit.For more details about Op-Amp TL081 Audio Amplifier circuit please read more http://www.circuitstoday.com/simple-10w-audio-amplifier...
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| STK439 Stereo Amplifier Circuit |
| 2011-10-31 14:00:00 |
The power amplifier circuit of this be regarded as highly popular In producer stereo readymade group that have both of amplifier radio tape plaything and tuner include in same group. This IC group produce from a factory sanyo have elect but beside vacate 7 watt go to until 20 watt RMS be , STK435 = 7W+7W (27Volt supply) , STK437 = 10W+10W (33V) , STK439 = 15W+15W (39V) , STK441 = 20W+20W (44V) , STK443 = 25W+25W (49V). STK439 Stereo Amplifier CircuitSTK439 If you take an interest to build this project as a result may assemble the equipment follows the circuit. By use IC every the number uses the circuit and PCB the alike. Except level Voltage that differently thus. the capacitors at use in the circuit especially electrolytic. should use model durability voltage the ...
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| 1 Watt Amplifier Circuit by LM390 |
| 2011-10-31 13:29:00 |
This circuit is mini-size audio amplifier based on the LM383 chip. It is easy to construct and has only A Few external components so it is suitable for small applications or for those of you who are still in the learning1 Watt Amplifier Circuit by LM390 LM390 Pinout The LM390 Power Audio Amplifier is optimized for 6V, 7.5V, 9V operation into low impedance loads. The gain is internal- ly set at 20 to keep the external part count low, but the addition of an external resistor and capacitor between pins 2 and 6 wil increase the gain to any value up to 200. The inputs are ground referenced while the output is automati- cally biased to one half the supply voltage. By National Semiconductor Corporation...
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| Blazer Power Amplifier Circuit |
| 2011-06-09 16:22:00 |
This is a 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 levelThe transistors 2SC3858 and 2SA1494 are feature high bandwidth, excellent safe operating area, high linearity and high gain. Driver transistors are 2SC5200 and 2SA1943. All devices are rated at 230V, with the power transistors having a 150W dissipation and the drivers are 50W.1000 watt Blazer Amplifier CircuitThis 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 d...
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| Electret Microphone Preamplifier 1 Transistor |
| 2011-06-02 10:16:00 |
This is a simple microphone preamplifier circuit which you can use between your microphone and stereo amplifier. This circuit amplifier microphone suitable for use with normal home stereo amplifier line/CD/aux/tape inputs. This microphone preamplifier can take both dynamic and electret microphone inputs. The performance of the circuit is nothing superior but can be used with many not so serious projects.Rangkaian Electret Microphone Preamplifier 1 TransistorThe circuit is a simple 1 transistor amplifier with amplification of about 30-40 dB. The dynamic mic input is just a simple one transistor amplifier circuit with nothing special in it. LED D1 is in the circuit to show that the circuit operates. The voltage drop caused by LED (around 1.8V for RED led) has been taten in account when desig...
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| Simple Preamp Mic using LM358 |
| 2011-06-02 09:43:00 |
This is a simple audio mic pre amplifier circuit based on single IC LM358. The circuit is very simple, inexpensive and easy to built.Rangkaian Simple Preamp Mic using LM358LM358 PinoutNote:variable resistor of R5 to adjust the gain of op-amplifier IC LM358.The LM358 has two op-amp module, you may build stereo audio pre-amplifier using single LM358.Component list of simple preamp mic circuit:R1, R3, R4 : 10KR2 : 1KR5 : 100K-1M PotensiometerC1 : 0.1uFC2 : 4.7uF/16VIC1 : LM358 dual op-amplifierMic : Electret Microphone ...
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