Tuesday, September 1, 2009

MOSFET BUZ902DP 400Watt Audio Power Amplifier


400Watt Audio Power Amplifier circuit with MOSFET BUZ902DP

If you like in the sound system or sound this circuit will should like you , This amplifier has two completely separate mono amplifiers with each channel has its own power supply to the order of zero channel crosstalk, a common phenomenon in amplifiers have the same food.

To view the full performance of each supply transformer should be evaluated at 40VAC – 0 – 40VAC at 640VA.

Unlike many models of capacitors is a reservoir to supply the peak currents, I prefer the power transformer in a much faster transient. BUZ902DP Although the specifications are rather modest,

if they can hear you now to experience a large reserve of power available and never any reason to worry that something to do than drive a large number of amplifiers aloud. You do not hear nothing but the truth without distortion at all levels, and I can assure you that this amplifier is required to provide the best features coupled.

300 Watt MOSFET Audio Power Amplifier

300 Watt MOSFET Audio Power Amplifier
300 Watt MOSFET Audio Power Amplifier

I will share my experience with the BUZ902DP with other fans to share my passion for this minimalist perfection.I amplifier for the durable, easy to use, while the high fidelity to the original sound source and advise the partnership, this amplifier with other products of excellent quality.
When I began the design of this amp, my goal was to make a product better suited for the reproduction of complex music and voice. Although I emphasize the high electrical properties, the most important requirement is to create a superior sound, vivid images and superb spatial aural clarity.
Although the average level of listening is usually less than 10 watts, my design concept was to an amplifier with plenty of reserves, but the deviation is for Class A, at the height of the audience of cross-over distortion at a very low level.
There is no place in the pathway, enhances the precision of the tonal characteristics of instruments and voices clearly.
The BUZ902DP is virtually zero phase distortion over the audio range resolution is perfect and completely color the sound.

Amplifier Specification:
Maximum Output: 240 watts rms into 8 Ohms, 380 watts rms into 4 Ohms
Audio Frequency Linearity: 20 Hz – 20 kHz (+0, -0.2 dB)
Closed Loop Gain: 32 dB
Hum and Noise: -90 dB (input short circuit)
Output Offset Voltage: >13 mV (input short circuit)
Phase Linearity: > 13 0 (10 Hz – 20 kHz)
Harmonic Distortion: > 0.007% at rated power
IM Distortion: > .009% at maximum power

IC-L7136 LCD Thermometer Circuit


IC-L7136 LCD Thermometer Circuit

I saw many car product in thermo sensor ,so i would like to show you the LCD thermo sensor which can modify for your car.

When the thermometer is the IC thermo sensor (S8100) or diode (1S1588) is used as thermal sensors.
When using the IC thermo sensor, the thermometry to +100 ° C -40 ° C are possible.
Also, when using the diode, measured at 150 ° C from -20 ° C are possible. Both sensors are contained in the set.
This time I used the diode as a heat sensor to measure more than 100 ° C. ICL 7136 of Intersil (Harris) used for the thermometer and measure the voltage change minute by management before the temperature diodes.
The 3-1/2 digit LCD (SP521PR) applied to the screen. The most significant digit can display a “1″.
ICL7136 electricity consumption is very small and it is possible to run about 3 months with 9-V cell.

The essential parts are contained in the set. The plastic casing and the cell is contained. But there is a cable connecting the sensor.