AmplifierCircuits

Description The IRS20124 is a high voltage, high speed power MOSFET driver with internal deadtime and shutdown functions specially designed for Class D audio amplifier applications. The internal dead time generation block provides accurate gate switch timing and enables tight deadtime settings for better THD performances. In order to maximize other audio performance characteristics, all switching times are designed for immunity from external disturbances such as VCC perturbation and incoming switching noise on the DT pin. Logic inputs are compatible with LSTTL output or standard CMOS down to 3.0 V without speed degradation. The output drivers feature high current buffers capable of sourcing 1.0 A and sinking 1.2 A. Internal delays are optimized to achieve minimal deadtime variations. Proprietary HVIC and latch immune CMOS technologies guarantee operation down to Vs= –4 V, providing outstanding capabilities of latch and surge immunities with rugged monolithic construction. Featu...

Features for 100W Subwoofer Amplifier: Output power (f=1 KHz, d=0.5 %): 100 W in 8 ohm Supply voltage: ................ СЃ 40 V Quiescent current: ............. 50 mA Maximum current: ............... 2.6 A Sensitivity: . 600 mV Frequency response: ............ 10-35000 Hz (-1 dB) Distortion HD: ................. 0.01 % Intermodulation dist.: ......... 0.02 % Signal/noise: 83 dBConstruction Circuit diagram for 100W Subwoofer Amplifier: 100W Subwoofer Amplifier more info to orifinal article sourse english.cxem.net

General Description: This complete high quality, low noise mono audio power amplifier is based around the Hybrid Integrated Circuit STK4050 manufactured by Sanyo. The circuit incorporates volume and has a maximum music output power of 200W.The circuit incorporates an on board power supply; therefore, only centre tapped transformer is required to power the circuit. I t has very good quality sound. U can use it with your Home Theatre your PC & etc... You can also use it as Subwoofer Amplifier. It is a compact package for THIN-TYPE Audio sets. Easy Heatsink design to disperse heat generated in THIN-TYPE audio sets. Constant-Current circuit to Reduce supply switch-ON and switch-OFF shock noise. External supply switch-On and switch-OFF shock noise muting, Load short-circuit protection, thermal shutdown and other circuits can be tailored-designed. Features: Output Power : 200Watts Load Resistance : 8ohms Input impedance : 55K Maximum supply voltage : (+95v)-0-(-95v) Recom...

140 watt subwoofer circuit diagram 140 watt subwoofer circuit diagram

Circuit Diagram

Circuit Description 1000W Power Amplifier: Power amplifier has up to 1000 Watt power, this circuit made one channel only so if you want to create a stereo in it must be made one again, actually this is more suitable power amplifier in use for Sound System or outdoor, so if only in use for the house I think is less suitable. Maybe you've seen or even have an active speaker and there is written 1500 watts PMPO (Peak Music Power Output), make no mistake this is different from Power Amplifier Active Speaker, I often dismantle such Active Speaker in it only a power with power no more than 150 watts by using the transformer 2-3 Ampere. PMPO is not a real power which is issued by the Power Amplifier, but counting all the speakers that there is, for example: if there are 5 pieces of speakers on each channel and each speaker has a power of 10 W then it is 100 W PMPO. Circuit Diagram 1000W Power Amplifier: 1000W Power Amplifier Partlist 1000W Power Amplifier: Wh...

Circuit Description IC TA8210AH By using this you can apply a series of audio power amplifier is the car audio system. In general, all the speakers in the car using a subwoofer speaker, and woofer. Because the car is not big room so the sound is being required is not too high. Audio amplifier circuit can work at a minimum voltage 12-volt DC, if supplied under voltage 12-voltamplifier work will be less than the maximum. This amplifier output power up to 200W or 2 x 100W stereo with 8 ohm impedance. Circuit Diagram 200 Watt Stereo Car Amplifier Part List : Resistor R1 =1K R2 =50K trim R3 =1K R4 =50K trim R5 =680R R6 =680R R7 =150K R8 =2R2 R9 =2R2 R10=2R2 R11=2R2 Capacitor C1 =1uF C2 =1uF C3 =47uF C4 =47uF C5 =100n/400V C6 =220uF C7 =220uF C8 =100n/400V C9 =100n/400V C10=100n/400V Intregated Circuit IC1=TA8210AH Connector X2-3=in R X2-2=gnd X2-1=in L X1-1,X1-2=Out R X1-3,X1-4=Out L

Circuit Diagram Subwoofer power amplifier IC OPA541BM Amplifier Description   Subwoofer power amplifier circuit based on IC OPA541BM very suitable for use in subwoofer speakers, these amplifiers possess excellence in sound issued because the sound is very clear and issued in accordance with subwoofer speakers in a low tone.

Basic operation of this amplifier is on IC TEA2021 , In this circuit minimum require voltage is 4 volts and maximum voltage 25 volts. Power output 14 Watt with 4 Ohm impedance. See this schematic.

Acoustic spectrum is extended by the 20Hz frequency is very low and reaches as high frequency 20000Hz. In the low frequency is lowered sense of direction. This reasoning leads us to attribute to the speaker's use of very low frequency. Making it to you we propose to distinguish these frequencies, in order for him to lead us on a suitable amplifier. Acoustic filter are met at different points in the sound system. Applications knownest they are filter baxandal to organize low-and high-frequency tones and crossover filter where the acoustics are separated in the subareas, for it leads to the appropriate speakers. Applications that you can we propose is a simple filter that limits the acoustic region (20-20000Hz) in 20-100Hz region. With manufacturing, we propose that you can you can make an active filter for you lead a very low frequency loudspeaker. With this you will put a big one between speaker HIFI speakers from you. In order for you to have a complete picture of sound you ...

Description of bridge TDA7294: This is power amplifier based on IC TDA7294 with output power 150W with 8 ohm impedance, source voltage + - 25V. for circuit see image below. Circuit diagram for TDA7294: TDA7294 150 W Power Amplifier

This 200W power amplifier circuit using IC STK 4050. STK 4050 is a power amplifier module is very powerful, because the IC is already a module then only needed a little extra components to build a reliable 200W Power Amplifier. Here is a picture series of Power Amplifier ICs 200W use STK 4050 complete with its power supply

This is the simplest Subwoofer Low Pass filter Circuit using uA741 single op amp ic. The circuit is very low cost with respect to their work. The cut off frequency of this circuit is 25Hz to 80Hz maximum. Using this circuit , you can easily design a 2.1 Sub-woofer Speaker System at your own Home. The circuit contains very few components.In Pakistan, the cost of this circuit with PCB is Rs:45 The same circuit is working in my own hand made sub-woofer system.  Subwoofer Low Pass filter Circuit Parts List: R1,R3,R4 = 10K 1/4W R2=100K 1/4W CY1,CY2 = 0.22uF Polyester C1,C2 = 10uF/25V Electrolytic IC1 = uA741A Single Op-Amp Ic + 8 Pin Ic Socket 3 Pin Male & Female Connector x 2 2 Pin Male & Female Connector x 1 PCB as in required size 4.5 cm x 3.4 cm

500W Subwoofer Amplifier Circuit

CMOS Technology  Low Power Consumption  2 Built-in Individual Volume Control: 0 dB to -60dB  2-Channel 2nd Order High Pass Filter + 1 Mixed Mono Subwoofer Low Pass Filter  Cross-Over Frequency adjustable by external passive components  Control Interface of Volume Control: UP/DOWN Key (MCU is not necessary)  Built-in 3D Effect and Loudness Function  Supply Voltage: 5V to 9V Satellite + Subwoofer 3-Speaker System Electronics Crossover IC

CMOS Technology 2 - Channel Input 3 - Channel Output (Including 1 stereo Output and Subwoofer Output) Low Total Harmonic Distortion (THD<0.01%, Subwoofer THD<0.2%) High S/N Ratio (S/N Ratio <-87dB, A-weighting) Least External Components Adjustment of Frequency response by changing the value of the external component Single Power Supply: 3 to 8.5 Volts Available in 20 pins, DIP or SO Package Multi-Media 3D Satellite Speaker and Subwoofer System Car Audio Audio Equipment Sound Card Other Electrical Audio Equipment Tone Control Subwoofer Low Pass Filter IC

Circuit to solve new to the buffer input for the signal R + L and cutting area of ​​the Muting issue and the cut-off point often fear for VR 4 floor hard so I divided into 2 layers using 2 the time that the cut frequency, if wanted. It has layers of fine cut to the same location. I use ic tl072. And replace series capacitor 0.022 with 0.047 . That a soft voice that sounds good offline but not feeling heavy and dial around the back lot, try changing the capacitor. Beyond the traditional. Intended to adjust to extremely low frequency adjustment for the store before so I think that the device is used. Could differ. I sent in this condition before.

It may seem a little excessive, but since I had the programmer, the C compiler and some spare PIC16F627 chips, this solution to handling power on mute, 12V trigger powering and LED for status would be small, reliable and cheap. Three relays would be involved. Mains switching relay, to switch in the 225VA toriodal transformer Output switching relay, to disconnect the speaker from the amp Input switching relay, to remove any input so the output switching relay switches a very small current, prolonging its life (thanks to Mark Hennessy for this idea). Two LEDs would be on the front of the box. One LED for standby, one (blue) LED for power on. The would both flash in turn when the power on sequence runs. Finally, there would be two inputs. One small push button for mounting on the front of the case for manual power on/off, and one 12V trigger input, isolated using a standard opto-isolator in order to prevent earth loops. Thats all there is to it. Without the PCB mount transformer, the PCB...

R1  200 Ohm 1/4 W Resistor R2  200K 1/4 W Resistor R3  30K 1/4 W Resistor R5  1K 1/4 W Resistor R6  5K 1/4 W Resistor R7,R10  Meg (5%) 1/2 W Resistor R8,R9  0.4 Ohm 5 W Resistor R11  10K Pot R12,R13  51K 1/4 W Resistor R14  47K 1/4 W Resistor C1  100uF 35V Electrolytic Capacitor C2  0.011uF Capacitor C3  3750pF Capacitor C4,C6  1000pF Capacitor C5,C7,C8  0.001uF Capacitor C9  50pF Capacitor C10  0.3uF Capacitor C11,C12  10,000uF 50V Electrolytic Capacitor U1,U2  741 Op Amp U3  ICL8063 Audio Amp Transister Driver thingy Q1  2N3055 NPN Power Transistor Q2  2N3791 PNP Power Transistor BR1  250 V 6 Amp Bridge Rectifier T1  50V Center Tapped 5 Amp Transformer S1  SPST 3 Amp Switch S2  DPDT Switch F1  2 Amp Fuse SPKR1  8 Ohm 50W Speaker MISC  Case, Knobs, Line Cord, Binding Posts Or Phono Plugs (For Input And Output), Heatsinks For Q1 And Q2