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Showing posts from January, 2015

Stereo 175 watt amplifier or 350 watt mono amplifier STA517B

Stereo circuit in datasheet here

Stereo 300W Audio Amplifier Circuit Diagram LM SeriesLM 4702BTA

Feature of LM 4702BTA
Very High Voltage Operation
Scalable Output Power
Minimum External Components
External Compensation
Thermal Shutdown and Mute

Typical Audio Amplifier Application Circuit LM 4702BTA

Up to 1000W Power amplifier TP2350B

Features:
Class-T architecturePin compatible with Tripath TK2150Proprietary Digital Power Processing technology"Audiophile" Sound Quality0.02% THD+N @ 50W, 8Ω0.03% IHF-IM @ 30W, 8ΩHigh Efficiency95% @ 150W @ 8Ω90% @ 275W @ 4ΩSupports wide range of output power levelsUp to 300W/channel (4Ω), single-endedoutputsUp to 1000W (4Ω), bridged outputsOutput over-current protectionOver- and under-voltage protectionOver-temperature protectionApplication
Audio/Video Amplifiers & ReceiversPro-audio AmplifiersAutomobile Power AmplifiersSubwoofer AmplifiersCircuit Diagram

2 x 210 Watt STEREO DIGITAL AMPLIFIER POWER STAGE

2×160 W at 10% THD+N Into 8-Ω BTL 2×210 W at 10% THD+N Into 6-Ω BTL 1×300 W at 10% THD+N Into 4-Ω PBTL

TP2150B 2 x 200 watt power amplifier

180W + 180W Power Supply Audio Power Amplifier ICs

Overview:

The STK412-000 series are class H audio power amplifier hybrid ICs that feature a built-in shift power supply circuit. These ICs provide high efficiency audio power amplification by controlling (switching) the supply voltage supplied to the power transistors according to the detected level of the input audio signal. 
Features:

Pin compatible IC series that covers power ratings from 50 W × 2 channels to 180 W × 2 channels at 0.7 or 0.8% THD, 20 Hz to 20 kHz. This allows the use of a common PCB for all output classes. The pin arrangement is also unified with that of the three-channel STK413-000 series. This means that PCBs designed for three-channel models can also be used for two-channel models. Miniature package — 50 W/ch to 120 W/ch (THD = 0.8%, f = 20 Hz to 20 kHz): 64 × 36.5× 8.5 mm* — 150 W/ch to 180 W/ch (THD = 0.7%, f = 20 Hz to 20 kHz): 78 × 44× 9 mm* * Not including the IC pins. Allowable load shorted time: 0.3 sCircuit Diagram:

Two-Channel Shift Power Supply Audio Power Amplifier ICs 180W + 180 W

Overview The STK412-000 series are class H audio power amplifier hybrid ICs that feature a built-in shift power supply circuit. These ICs provide high efficiency audio power amplification by controlling (switching) the supply voltage supplied to the power transistors according to the detected level of the input audio signal.



Circuit diagram and other info view

Baxandall Tone-Control Audio Amplifier

This circuit exploits the high slew rate, high input impedance, and high output-voltage capability of CA3140 BiMOS op amp. It also provides mid-band unity gain with standard linear potentiometers.

Race-car-motor-crash

The mixer can be multiplexed between the SLF and VCO functions. 

How to Build a Subwoofer Box

Building a subwoofer box is the foundation of your new car audio system . In this video I will show you different techniques that will make your sub enclosure perfect and help it sound even better!

300W Building a subwoofer enclosure

This is how a subwoofer enclosure is built, it is ported and is tuned to 35hz the subwoofers that i am installing are 2 re 8's that are dual voice coil and i am pushing 300watts at 4ohms.


7 segment display Arduino

The aim of this article demonstrate how the Arduino can run on 7-segment display.We used a SA56-11GWA which is a single display with common anode, it means that the anode is common to all digits, and to the point.
A display consists of 8 LEDs, 7 form the figure and 1 point decimal.A conversion between decimal and what we intend to show the binary information that you receive is called the BCD (Binary Coded Decimal).
In terms of hardware, each LED work individually, so each of the segments has to lead a limiting resistor, in this case, each digit has an operating voltage of 2.2V and consumes 20mA.If the voltage is 5volts, we need the resistor fall 5-2.2 = 3.8V, by Ohm's Law we can calculate, R = V res / I led R = 3.8 / 0.020 = 190 Ω +/- 20% (let's use a resistor with 220Ω).This applies to this display SA56-11GWA used as an example, other values ​​may be different, it is useful to calculate the required resistance value. DecimalTheA 3A 2A 100000100012001030011401