Showing posts with label power. Show all posts
Showing posts with label power. Show all posts
Thursday, December 19, 2013
Power amplifier circuit 60 W mono
Wow this is nice intregated amplifier circuit , because this IC can be power output up to 60 Watt . With minimum require voltage 8 V , and maximum voltage 35 V . But this circuit isnt so good to working on car , because output sound is very loud but not smooth. Amplifier so good working on full range , with speaker full range 100W and impedance 8 Ohm.Below it is schematic :
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| Click to view large |
The circuit above use IC AN7170 , the original output power IC is 20 W with impedance. But with use the circuit output elevated up to 60W.
Wednesday, December 18, 2013
Schematic Power Amplifier with IC AN7117
*notif : this circuit is mono amplifier
Schematic circuit power amplifier AN7117 below :
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| Click image to view Enlarge |
Tuesday, December 17, 2013
Subwoofer Car Power Amplifier
This is circuit of Subwoofer Car Power Amplifier 15W BTL stereo channel audio power amplifier based IC TA 8215 residential by Toshiba. modish this power amplifier circuit, two TA 8215 ICs are used. This is pro obtaining four channels with the aim of is two channels from both IC. TA 8215 is an IC with power amplifier stages and preamplifier integrated inside Subwoofer Car Power Amplifier.
The power supply necessary for this Subwoofer Car Power Amplifier is single 12 against DC supply. The upper limit output power delivered from all channel of this amplifier is 15 W to a 4 ohm presenter and and so the dub 4×15 W power amplifier.
R1 with R2 forms a voltage partition with the aim of attenuates the input indicator by 24dB. taking into consideration the flaws 50dB advance, that still leaves 26dB overall gain, vaguely extra than as much as necessary to fully oversupply the amplifier what time the sound license plant next to maximal output. C1 blocks DC on the preamplifier input. C2 is the ground return of the advice circuit. These two capacitors need to ensue in vogue the ratio exposed, in order to suppress switching clicks whilst powering the circuit on and inedible. The output pins 15 and 16 are connected immediately to the orator, while C7, R6, C8 and R7 provide the proper load period shifting to take avoiding action eminent frequency instability.
The power supply is decoupled with a fairly minute 100uF capacitor. so as tos sufficient in favor of superior frequency decoupling, and on let down frequencies anyway the greater capacitors taking part in the PC power supply are fine. Pins 10 and 17 supply the power amplifiers, while pin 9 provides power to the pre stages. This power is filtered by C3. The power control pin 4 allows to go home for the day down the amplifier, an option not used at this juncture, so its together to 12V. Pin 1 is a muting input, and not used, and gone candid.
Monday, December 16, 2013
100 Watt Power amplifier with IC TDA1514
Power Amplifier TDA1514 , this power use the IC TDA1514 , minimum require voltage 12 Volt and maximum voltage 30 volts DC. Power output maximum 100 Watt mono with 8 ohms impedance. this circuit is High output power amplifier with IC. See schematic below :
Sunday, December 15, 2013
0 300V Variable High Voltage Power Supply
Here is the variable high voltage dc power supply circuit, which we can customize the output voltage from 0 to 311Vdc, and it is protected the current over limit that we define at about 100 mA.
In the circuit you can see the T1 is a mains transformer with a ratio of 1:1, for security reasons , and reduces noise signal as well. Then the mains voltage from the T1 is rectified to DCvolt with bridge diode D1-D4, We use a No. 1N4007 that withstand voltage as 1,000V at the current 1A and and this DCV is filtered through the capacitor C1 – 220uF 400V be the big size electrolytic types, by the voltage drop across C1 is about 311VDC.
The power MOSFET Q1 is controlled the current output, with using the resistor R3 – 500K adjust the voltage gate pin of Q1. The ZENER diode ZD1-12V is available prevent over voltage at gate pin of the Q2 if we not has it when high volt the Q2 may be damaged.
The transistor Q2-BC337 and the shunt resistor R2 – 3.3ohm are added for as a current limiter. When the current output is too increased, the Q2 will stop the gate pin of the Q1 immediately, which will be guard the higher current output. The degree of R3 gets from testing in this circuit, which depending on the gain of the transistor or the hFE value, so you may need to tune the value of R2
High power amplifiers
By organizing the annual CES 2010, Pass Laboratories has recently introduced a new device that is X260.5 mono-block power amplifiers.
X260.5 offers a power output of 260W and comes with the Super-Symmetry topology features that can improve performance by adjusting the characteristic value of balancing and damping amplifier distortion / interference.
X260.5 device brings all the sonic advantages of mono-block operation for A / B high-power amplifiers in a physical package that can be managed device is half the physical size and weight of the device X600.5 Class D mono-block power.
Simple physical size, weight that can be managed and high strength coupled with great performance make this device as the Pass Laboratories ideal power-amp in any system that refers to a 2-channel and multi-channel format.
In addition, it also brings flexibility X260.5 combination for consumers who already have a device Pass Laboratories Stereo amp and want to add an additional channel power amplifier that is suitable sonic Laboratories Pass that complements other devices that have been there before.
As a stand-alone product, X260.5 device is truly amazing. And its existence at this time will quench the thirst of customers with ease. Equilibrium dynamics coupled with tonal accuracy and spectral balance that provides live music by presenting a taste of the extraordinary closeness.
Pass Labs X260.5 is capable of processing and increase the power transformer and an AC EMI filters, high-speed/soft recovery rectifiers in parallel, the capacitor power supply that is more parallel and supply RC filtering, improvements to the forefront of the input circuit, and the addition of Clas A bias circuit single. This amplifier offers one RCA inputs and one XLR input connectors. And for those who are interested, you can gain amplifier device is worth 11000 USD or about 110 million dollars per pair. Wow, a fantastic price!
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X260.5 offers a power output of 260W and comes with the Super-Symmetry topology features that can improve performance by adjusting the characteristic value of balancing and damping amplifier distortion / interference.
Simple physical size, weight that can be managed and high strength coupled with great performance make this device as the Pass Laboratories ideal power-amp in any system that refers to a 2-channel and multi-channel format.
In addition, it also brings flexibility X260.5 combination for consumers who already have a device Pass Laboratories Stereo amp and want to add an additional channel power amplifier that is suitable sonic Laboratories Pass that complements other devices that have been there before.
As a stand-alone product, X260.5 device is truly amazing. And its existence at this time will quench the thirst of customers with ease. Equilibrium dynamics coupled with tonal accuracy and spectral balance that provides live music by presenting a taste of the extraordinary closeness.
Pass Labs X260.5 is capable of processing and increase the power transformer and an AC EMI filters, high-speed/soft recovery rectifiers in parallel, the capacitor power supply that is more parallel and supply RC filtering, improvements to the forefront of the input circuit, and the addition of Clas A bias circuit single. This amplifier offers one RCA inputs and one XLR input connectors. And for those who are interested, you can gain amplifier device is worth 11000 USD or about 110 million dollars per pair. Wow, a fantastic price!
Friday, November 22, 2013
Power supply with driver TEA1507
Power supply with driver TEA1507 is mostly used by TV branded PHILIPS. Power Supply has an efficiency rate of up to 90% - thus requiring less cooling, as well as stand-by power required is less than 1 watt.
Power Supply with TEA driver is equipped with a variety of surge protector that has a high reliability - not easily damaged if any part of a damaged power supply circuit and power transistor or FET heat is not easily damaged. Power supply circuits are dapatapat working on ac input voltage between 85 up to 275v. The way it works with the driver circuit power supply TEA 1507 is quite simple, so easy tracking of damage to the circuit.
The picture above is the basic power supply circuit with TEA1507
Thursday, November 21, 2013
Bridge Power Amplifier Using TDA7294
Using TDA7294 audio amplifier integrated circuit in bridge mode configuration , can be designed another Hi-Fi power amplifier .In this TDA7294 bridge power amplifier the value of the load must not be lower than 8 Ohm for dissipation and current capability reasons.
Bridge Power Amplifier Circuit Using TDA7294
The main advantages offered by TDA7294 bridge mode configuration are:High power performances with limited supply voltage level, Considerably high output power even with high load values ( 16 Ohm).The output power of this amplifier in bridge connection is 150 W with Rl= 8 Ohm , Vs = +/-25V the and 170 W output power for Rl=16 Ohm, Vs = +/-35V.
Bridge Power Amplifier Circuit Using TDA7294
Sunday, November 17, 2013
Mini 2x75W Stereo Power Amplifier
Your search for audio power amplifier with 75W stereo power with a slim body, you can use this Pyle - Mini 2x75W Stereo Power Amplifier - PCA3 . Power amp is designed simply and easily be placed anywhere, not just a good amplifier design is also very good in terms of sound quality in its gain. You can use this amplifier with a media player with a voice like VCD, DVD, Tape, etc.. What are you waiting you can buy the amplifier via the link below :Stereo Low power audio amplifier
Audio amplifier circuit has a power output of 2 x 2.3 Watt, which uses IC KA2206, KA22061, LA4180, LA4182, LA4183, LA4550, LA4555, LA4558. The required voltage for at least 6 volts to 13 volts DC maximum. Component takes is a ic that I mentioned above one of them, and several capacitors elco.
This Schematics low power amplifier
C1 = 1uF
C2 = 100uF
C3 = 100uF
C4 = 100uF
C5 = 0.1uF
C6 = 470uF
C7 = 1uF
C8 = 100uF
C8 = 100uF
C9 = 100uF
C10 = 100uF
C10 = 100uF
C11 = 0.1uF
C12 = 470uF
C12 = 470uF
ICs can use the ic which I mention above for each ic datasheet can be seen itself.
Saturday, November 16, 2013
Tips and Tricks on Audio Power Amplifier Circuit
Amplilfier power series from the beginning until now did not experience any changes. Some say this series is good, but the series was good fitting assembly and tested the results are not as we expected.
The problem is usually treble is less subtle, less sound, sound breaking, buzz, middle of the field tested the bass sound is lost. so you do not have to believe what people 100%. The quality amplifier built-up would differ greatly with the amplifier assembly, a series can be the same but the quality will depend on who manufacture it.Here are a few tricks to try
How to cope with a buzzing sound
Power amplifiers are often used in the field blazer. This circuit is said said person is a bell assembly. But you do not immediately interested in this power, the circuit rather complicated and difficult to understand reflect the intelligence of people who first mendisainnya. In my opinion a great power is the power of simple, inexpensive, easily assembled and rational. You do not need to use expensive components such as the price of tantalum capacitors, power mosfet and the other expensive. This does not determine the quality of the power amp so that we raft. Power of sometimes causing buzzing, to overcome that is by holding the line input jack ground to the ground with 10-22 ohm resistors. So do not just take the ground input from the ground but held first with the R 10 ohms.
How to setting bias trimpot
Rotate the trimpot bias (if any) until the drain current of 50-100mA on each power transistor, in order to avoid defects treble in volume in the top position at 10. The risks are so panassss heatsink! (This setting marks on plate A-AB)
Offset trimpot setting
At the time of input without a signal, turn the trimpot so that the voltage on the speaker offsets actually read 0 volts. If you do not want to bother, use and entrust it with ic type series from Hitachi HA17741 IC brand quality or other! This is the heart of the series, 90-95% of quality is determined from the IC circuit this!
Overcoming the voice
Use pre-amp circuit to increase the signal of at least 2 times. normally and should pre-amp circuit uses IC op-amps with +12 V minimum supply-12V. Raise his mid tone!
If hard you do not want to just use the tone control circuit IC is his mid!
The secret is not in his mid tone alone, but the signal output from the IC op-amps are usually large.
Treble rupture
Excessive treble will damage the power amp, power rather than out even ngedrop. Handle, attach the filter capacitor on the input 1NF power amp to ground to ensure the signal is not disabled. Always use a quality active components such as ICs and transistors, 500 price difference will also be different results.
Use a large cable and short as possible, especially for leg power transistor, and this transistor should be directly soldered to the pcb.
Missing bass in field
Usually power for field use supplay CT 50V 50V transformer, or at least 42V 42V ct. The greater the greater the supply voltage watt channeled though the series is written only 300-400 Watts only. This course uses Elko capacitors with voltage 80-100V. 10.000uF/100V capacitor will be equal to 4X10.000uF/50V and of course voltage capacitor is filled with full / almost full.
Try to use a strong Elko at temperatures of 105 C. Capacitors are strong in supply of more than nominal voltage is written on his body. For example 4700uF/50V 85C capacitor will quickly explode in voltage 51V 85C. And Elko will be strong 105C 4700uF/50V voltage supplied more than 50V at a temperature of 85C. Elco so that it does not quickly explode if given the full voltage, keep its temperature as cold as possible, fan with the cool air.
For speaker
Try using a driver speakers that have a large spool diameter fitted with a suitable size bok. Usually included examples of the parameters / dimensions bok. Size bok bok2 usually larger than that sold in the market. if you force using bok that from this market, use driver type G12-80 (sorry no fear brand called promotion) speakers with bass tones to wall size small. Bok wall should be thick, strong and do not forget glued! Bok who will not be glued with a different sound, especially bass tones, prove it!
Heat Sensor
The form of transistor, the transistor is usually type BD139 MJE340 or it could be located in the center, flanked by a pair of transistors having a certain equal. These transistors must be mounted on the main heatsink to detect the heat generated by power transistors. It acts to lower bias currents at the hot heatsink. So what heatsink and power transistors must be set diposisi hot? Yes objectives nothing to prevent the signal from the defect (in class A or AB), with consequent heat. This class is not necessary and will not be felt if you only want the bass tones only. Goal setting on. AB grade is still crystal clear sound even though the maximum volume positioned rotated (in the middle of the field).
It is unlikely, but its closer.
Large heatsink
Not only electrolytic capacitors are more explosive at high temperatures, power transistors can also break away under stress break the original. For example 2SC5200 transistors have the break voltage of 230Vdc, but if temperaturya high voltage values will break his fall well below this value, resulting in faster transistor is damaged. Use of heatsink and cooling fan is very important not only to reduce the heat, more than it can prevent the transistor from break / damaged and weakened output. Increasingly hot temperatures will be more or less ability. Use of this cooling is expected for the components remain fresh, fit and durability.
Choice Component
Power Transistor
There are so many types and models of these transistors, for example MJ15003 MJ15024-4 and-5 from Motorola, but unfortunately these components are not manufactured by Motorola again but from ON semiconductor. Transistor model jengkol usually stronger in the high temperature, probably due to more airtight. 2SC5200 from Toshiba, this transistor is equal dalamannya Sanken 2SC2922 Korea, and both will break if the temperature is too hot. 2SC2922 Sanken issued tin granules when heated, this weakness, the Japanese technology is better than Korean technology. 2SC3281, this transistor is the most popular and frequently used in professional amplifier, but Toshiba does not produce much, if still there in the market, then it most likely is fake!
Transfomer
There are two models of the transformer which is often used, namely EI model (box / conventional) and the model toroid (ring / donut). Some say the toroid transformer model is better because it has a smaller flux leak, in fact the same. Circuits that are sensitive to this flux is high berpenguatan circuits like pre-amp head and mic pre-amp. The circuit is usually installed horizontally / flat parallel to the structure of a conventional transformer wire so that a series of emails received reverberation is greater. Unlike the model toroid transformer is arranged in a vertical wire their email so that the wires are perpendicular to circuit kits The effect is the flux of the pre-amp kit receive a smaller head. To solve for this flux does not enter the series is by downloading shelding / fortified with non-magnetic plate such as aluminum plate and copper plate / sheet pcb board. Plate is of course connected to ground via a cable. To match the flux in a vertical transmission, the conventional transformer needs to be installed side (the side be side down) so that the arrangement of transformer wire stand upright, this method is often used in built-up POWER2. Voltage 50V 50V CT can be obtained by combining the two transformer 25VCT25V, CT is not used, the foot 25V 50V so that the legs be made only to CT, bringing the total number is 100V or 50VCT50V. It deserves used for pwr amp powerless over 400Watt.
Resistor 5 Watt
Resistor on the power transistor legs are usually valued at 0.5 ohm 5 Watt white square. If we dismantle dalamannya it appears there was a circular aluminum wire. It resembles the inductor, the inductive reactance inductor will be higher when fed a high-frequency fractions so that treble tone will be weakened and deformed. Power required to remove the high notes (treble) of course greater, there is a problem here. The use of R 0.5/5W on its home-based power amplifier ok-ok only. But often do not realize the cause of damage to the speakers and power amplifiers is the high treble tones. Treble is not out but was hit by a pwr amp so arising is hot and damaged. We recommend using common Watt resistor 2 12:47 - 1 ohm parallel 2 so that counted 4 Watt. Or if you use 0:22 ohm 2 Watt Resitor unnecessary because the voltage clamp diparalel quite half (one R 0.5/5W replaced one R 0.22/2W) its ok.
Fuse
Nature damage to semiconductor materials / transistor power amplifier is short, if you use a supply that is high enough then the destruction of these transistors will invite their partners to be damaged as well. In order for the destruction of this transitor congregation not need the installation of fuses. 1.5A per power transistor is considered sufficient.
Tips for caring power supply units
Power Supply on a computer is an energy source that drives the computer you. With power supply, hardware on the computer is given "power" to can work in accordance with their respective functions Power Supply on a computer to work as a flow modifier (Adapter) from AC current into DC. Power supply is working on 2 pieces of 5-volt DC voltage and 12 Volt. In a power supply, voltage 12 volt is usually characterized with a yellow cable, while the voltage is 5 Volt is marked with cable red.
Tips to maintain power supply in order to remain durable
1. Make sure you buy the power supply to suit your computer needs. Buy power supply that is guaranteed quality.
2. Make sure when you install a power supply on your computer already in the correct position. Make a tightening of the socket-outlet power supply to the motherboard, hard drive, CDRom, etc.. If you do the installation is not correct it will be fatal and can be a fire or a short-circuit will occur on your hardware.
3. Check your power supply voltages in the BIOS Hardware Monitor or Hardware Management. Is it permissible range qualified. If it does not fit will usually be marked with red writing.
4. Check the condition of the fan at any time at least 3 months. Or, when you have a problem on your computer such as Hang, Restart and Total death. Clean the fan if necessary and give a lubricant (contact cleaner) in as a fan.
5. Do not put your CPU is too close (mepet) with the wall. Because it would cause air circulation fan should be running with the operation will be disrupted.
1. Make sure you buy the power supply to suit your computer needs. Buy power supply that is guaranteed quality.
2. Make sure when you install a power supply on your computer already in the correct position. Make a tightening of the socket-outlet power supply to the motherboard, hard drive, CDRom, etc.. If you do the installation is not correct it will be fatal and can be a fire or a short-circuit will occur on your hardware.
3. Check your power supply voltages in the BIOS Hardware Monitor or Hardware Management. Is it permissible range qualified. If it does not fit will usually be marked with red writing.
4. Check the condition of the fan at any time at least 3 months. Or, when you have a problem on your computer such as Hang, Restart and Total death. Clean the fan if necessary and give a lubricant (contact cleaner) in as a fan.
5. Do not put your CPU is too close (mepet) with the wall. Because it would cause air circulation fan should be running with the operation will be disrupted.
Friday, November 15, 2013
2SC5200 and 2SA1943 high fidelity power transistor
Here are two transistors manufactured by Toshiba. 2SC5200 and 2SA1943 transistor pair has been widely applied or used in the amplifier power amplifier because the transistor has a large power, and also not too expensive than other large power transistors. This transistor has the advantage of High breakdown voltage: VCEO = 230 V (min), Suitable for use in 100-W high fidelity audio amplifiers output stage. For more information, please see datasheet below.
Maximum Ratings (Tc = 25°C)
Thursday, November 14, 2013
3 Level Audio Power Indicator
This circuit is designed to indicate the power level output of any audio amplifier. Its simple, portable, and displays three power levels can be adjusted to any desired value. For a standard power amplifier hi-fi stereo, the output values suggested are:
- D5 illuminates at 2W
- D4 illuminates at 12.5W
- D3 illuminates at 24.5W
Tuesday, November 12, 2013
Subwoofer amplifier with 30W output power
Amplifier circuit is very suitable for use in subwoofer amplifier system based on IC SI1030G. Amplfier has 30W output with 8 ohm impedance. Supply voltage required minimum of 12 volts and a maximum of up to 22 volts DC.
Component List :
R1 = 100K
R2 = 1R
C1 = 2.2uF
C2 = 100uFC3 = 47uF
C4 = 100nF
C5 = 10uF
C6 = 47uF
C7 = 100uF
IC = SI1020GL , SI1030G
Troubleshooting STR IC Regulator Power Supply
A. Unable to start.
Can be caused by:
- No start-up voltage supply Vcc or a voltage less than 16V
- Electrolityc Capacitors supply voltage Vcc filter dry.
2. Led indicator blinking
If the supply voltage Vcc examined rocking. This is because the regulator of life and death because OVLO work., Die-protectionist regulators and auto start life over and over. If it is turned off Electrolityc Capacitors usually still keep the rest of the cargo.
Can be caused by:
- Electrolityc Capacitors supply voltage Vcc filter on a pin-4 dry. Replace with a value equal to or slightly larger. - triger UVLO
- input filter capacitor on pin-1 feed dry behind the declining value - triger OLP
- Rectifier diode of the switching transformer is damaged (sometimes when examined with avo-meter looks like a still good)
- cause the supply voltage Vcc drops of the switching transformer (UVLO)
- Part damage or broken lines on the feedback circuit of the voltage regulator through B to photocoupler - triger OVP
- Electrolityc Capacitors dry filter voltage B - triger OVP
- One of the output voltage of the switching transformer secondaries there is a short (over load) - triger OLP
- Soft start capacitor value decreases - triger OLP
3. Noise arising (noise)
Can be caused by:
- Transformer windings slack.
- If there are ceramic capacitors - can sometimes cause interference noise due to its characteristic piezoelectrik like crystal resonator. Replace with film capacitors.
4. When the st-by normal stress. But when the power is on the regulator directly off protectionism no voltage on the secondary this part. Electrolityc Capacitors are still storing charge.
Can be caused by:
- Sensor OVP small value resistor on pin-2 to the ground so that the value of delayed triger to OLP or OCP.
- Regulator IC is damaged
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Note: Be careful when the regulator is not working. Because of Electrolityc Capacitors may still have a charge when turned off.
15 Volt output regulated power supply circuit
The circuit above get from -20 volt DC the rectifier diode which is fed to the collector of the Darling pn pass transistor , a TIP105 . The diode use IN4007. The base drive to the TIP105 is supplied through resistor R5. The base of the TIP105 is driven from Vz terminal at pin 9 , which is the anode of a 6.2 -V zener diode that connects to the emitter of the uA723 output control transistor.The method of providing the positive feedback required for foldback action is shown. This technique introduces positive feedback by increased current flow through resistor R1 and R2 under short circuit conditions. This forward biases the base emitter junction of the 2N2907 sensing transistor , which reduces base drive to the TIP105.
Thursday, November 7, 2013
800W Power Amplifier MOSFET
This Figure is a schematic power amplifier with power 800 Watt and driver and booster using MOSFET.
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| Audio Power Amplifier with power output 800W |
Monday, November 4, 2013
0 4W power amplifier with 5G37 IC
This circuit requires a voltage of 6-12 Volts. To have a good quality of this series with the voltage necessary suplly good too. The definition of good that is filtered and does not release much ripple voltage and using large-capacity condenser elco issued for the bass is strong enough.
See below this circuit :
Datasheet IC 5G31A
Vcc = 6-12 V
Pout = 0,4 W
RL = 8 Ohm
Ft = 40-17 Khz
Icco = 15 mA
Package = TABS1-14
Manufactered = China
Saturday, November 2, 2013
TA7200P and TA7204P 10 watt power amplifier
TA7200P has a 3,3 W output and the equation of TA7204P has a power output of 4,2 W , using the circuit above , in both ic can have 10 watts of output power amplfier , but the quality of each ic remains different. Both ic manufactered by TOSHIBA.Part List :Resistor = 100K x 2, 820RCapacitor = 1uF , 10uF , 100uF x 2, 4u7F , 820pF , 15 pF , 47uF, 470 uF.IC = TA7200P / TA7204PTechnical information :Max. Voltage = 20 Volt DCMin. Voltage = 10 Volt DCMax. Output = 10 WattApprox. RL = 4 - 8 OhmApprox. Ft = 30Hz - 18KHz
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