Tài Liệu

Tài liệu học tập và sửa chữa điện tử.
Chia sẻ 124 File tài liệu đồ án tốt nghiệp của các bạn Sinh viên chuyên ngành Điện Tử và Điện Tử Viễn Thông Bảng mật khẩu giải nén các file: # Ma So - Ten File # Password # BAI GIU XE TU DONG as9167ph BAI GIU XE TU DONG dw2738hj QUANG BAO MA TRAN GIAO TIEP MAY TINH hr8499eg QUANG BAO MA TRAN GIAO TIEP MAY TINH ti8530ot QUANG BAO MA TRAN GIAO TIEP MAY TINH pm6830ij QUANG BAO MA TRAN GIAO TIEP MAY TINH yb4802jg QUANG BAO MA TRAN GIAO TIEP MAY TINH nl9873vk [...
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UTC UPC1237 is a semiconductor integrated circuit designed for protecting stereo power amplifiers and loudspeakers. FEATURES Wide supply voltage range of 25V~60V. Contain a relay driver. (Max. I6=80mA) Work as either latching function or automatic resetting function by using pin 3. (In both overload detection and output offset detection, either function can be selected.) Single power supply. Built-in output offset detection function. Both positive and negative output offset can be detected through pin2. AC voltage can be detected. Time delay function. The time delay form amplifier power ON to relay ON can be freely set by selecting external components. The moment that amplifier-power is turned off, it can make relay broken OFF and then loudspeaker disconnected for amplifier to prevent a shock off noise. PIN NO. PIN NAME DESCRIPTION [...
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467
"Tài liệu sau đây nói về cách sử dụng nguồn đơn cho Op-Amp" Single or Dual Supply? Although it is advantageous to implement op-amp circuits with balanced dual supplies, there are many practical applications where, for energy conservation or other reasons, single-supply operation is necessary or desirable. For example, battery power, in automotive and marine equipment, provides only a single polarity. Even line-powered equipment, such as computers, may have only a single-polarity built-in supply, furnishing +5 V or +12 V dc for the system. In processing analog signals, a common feature of single-supply operation is the need for additional components in each stage for appropriate signal-biasing. If this is not carefully thought through and executed, instability and other problems may be encountered. Common Problems with Resistor Biasing Single-supply op-amp applications have inherent problems that are not usually encountered in dual-supply circuits. ...
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The success of commercial music often depends on the use of effects, allowing the listener a new audio experience. Michael Jackson's album 'Thriller', one of the best selling albums of all time, used a drum machine which was a new concept at the time, and provided a dramatic foundation to the tracks. The drum machine stored the sounds in an 8 bit nonlinear format that provided a 12 bit dynamic range and a 5 bit active signal to noise ratio! The quality seems perfectly OK when listening to the album, and the effect of perfectly timed drums is stunning, but in today's terms the quality would be deemed completely unacceptable. The point is that the effect is often more important than the quality of the sound. In some cases, the effect is a degradation in sound quality. Effect design is a creative process, tapping the imagination of the developer, and is a completely open art. Delay effects [/...
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Spin FV-1 Reverb IC - Featuring Spin Semiconductor Virtual Analog Technology FEATURES: Integrated stereo ADC and DAC 8 internal demonstration programs + 8 external programs Easy customization with external EEPROM 3 potentiometer inputs for real-time parameter adjustment 3.3V operation 6 MIPS operation at Fs=48KHz 128 instructions/sample clock 32K words of delay RAM Internal PLL for Fs input clock Integrated Power-On-Reset circuit LOG and EXP instructions for dynamics Green assembly/RoHS compliant APPLICATIONS: Guitar Amps Mixers Effects Equipment Karaoke Consumer electronics Car audio Active loudspeaker crossover and flattening Industrial processes General Description The Spin Semiconductor FV-1 is a complete reverb solution in a single IC. With integrated stereo ADC and DACs, the FV-1 can be treated like any other analog component in your products signal path. The FV-1 can access a total of 16 programs, 8 ...
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939
Basics of the LFOs in the FV-1 The Spin Semiconductor FV-1 contains a total of four LFOs; two SIN LFOs (SIN0 and SIN1) and two ramp LFOs (RMP0 and RMP1). These LFOs allows the user to create modulated effects like chorus and flange or to pitch shift a signal up or down. To generate a simple chorus effect in the chip requires the use of a SIN LFO. The purpose is to modulate a pointer in the delay memory to pitch shift the original signal up and down so when the result is mixed back with the original signal we hear a chorusing effect. To illustrate this to make it clearer to the user, first take a delay where samples are inserted at the start and a pointer reads them from a particular point like: If the pointer we use for reading does not move, the output is simply ...
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The Spin Semiconductor FV-1 is a complete reverb solution in a single IC. With integrated stereo ADC and DACs, the FV-1 can be treated like any other analog component in your products signal path. The FV-1 can access a total of 16 programs, 8 are built in to the internal ROM and the designer may elect to connect a serial EEPROM with 8 additional programs. By using an external EEPROM, the designer can distinguish his product from others by creating a custom program set without the need for a microprocessor in the system. With 3 potentiometer inputs, programs may have real time variable parameters such as decay time in a reverb, rate and depth in a chorus or frequency in a filter. These inputs are available as coefficients to your program and may be used independently of each other. The rich instruction set allows users to program effects of all kinds. With instructions like LOG and EXP, users can easily ...
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Để tránh những sai sót không đáng có khi gởi file đặt hàng như: không mở file được do nhà sản xuất không có phần mềm khách hàng sử dụng, nhân viên xử lý kỹ thuật mở file pcb của khách hàng gây ra thay đổi trên mạch.... Các bạn nên xuất file Gerber để gởi đặt hàng cho nhà sản xuất PCB. Tất cả các nhà sản xuất PCB đều có thể nhận Gerber. Để đảm bảo rằng mạch bạn thiết kế đã đúng tiêu chuẩn mà nhà sản xuất PCB có thể làm, trước khi xuất Gerber bạn nên đọc kỹ quy cách mạch in của các ...
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Tổng hợp sơ đồ mạch của các thiết bị điện tử thông dụng dành cho thợ như: tivi crt, tivi lcd, đầu đĩa, đầu chảo,... Các file mình tổng hợp từ các nguồn trên mạng bao gồm hơn 500 file sơ đồ, file khá nặng khoản 850MB. Hi vọng sẽ có ích cho anh, em thợ sửa chữa. Chi tiết nội dung các file (500 Common Electronic Circuit Diagrams): (CM-920FW-1710 VCT 38XY) Main Circuit diagram.pdf 12176PS.pdf 16M09_MX5A_MN1871681TF_M52770ASP_LA7840_panasonic_byht.pdf 16V8S_TDA8842.pdf 16V8S_TDA8842_TDA8356_STR-KA3S0680RF_samsung_byht.pdf 16VJN1 (Rap trong nuoc).pdf 20061023071640000_Training_manual_S16C_CS21Z45_en.ppt 21H11_8823_A30-V03_TCL_byht.pdf 21HF2-GA (SaiGon Nhap Khau).pdf 22E9...
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A professional suggestion for those interested in improving sound. The circuit constitutes the part of input mixing console sound from the microphone or source of high level . It can be used on it's own or be multiplied to the number of channels required. It includes all the useful functions such as, phantom power , reverse face, signal attenuation for avoiding distortions from high level signals regulating channel gains and the rest of the stages will be added next stages ,for full mixing console. Attention must be paid to the quality of the materials used. R1-2= 6.8K ohm / R16-19= 4.7Kohm / C8-11= 10uF25V electrolytic R3= 56Kohm / R17-18= 15Kohm / C9-10= 47nF 63V MKT 5% R4-6= 2.2Kohm / R20-21= 27Kohm / C12-13= 47nF 63V ΜΚΤ 5% R5-7= 220 ohm / R22= 22Kohm / T1-2= BC560C R8-9= 39Kohm / R23-24-25= 47Kohm / IC1= NE5532, TL072 R10-11= 2.7Kohm / C1-2= 33uF 63V electrolytic / S1-5= On/off Sw ...
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772
The EQ-2 it is a circuit of graphic equalizer 6 band of regulation. Each band is regulated from the potesometers RV1-6, that are, for better optical indicate of regulations, Fader. This does not mean that we cannot him replace with simply potesometer. In the center of regulation potesometer, the gain is null (flat), but in terminal has +/- 15 db, boost or cutting off, respectively. For stereo operation, it will be supposed two times. R1=47Kohms / C2=15nF 100V / C9=680nF 100V R2-5-18=150Kohms / C3=150nF 100V / C10=150nF 100V R3-4=10Kohms / C4=33nF 100V / C11=39nF 100V R6....17=10Kohms / C5=8.2nF 100V / C12=8.2nF 100V R19=100Kohms / C6=1nF 100V / C13=2.2nF 100V RV1.....6=100Kohms Lin. / C7=470pF 100V / C14=470nF 100V C1=1uF 100V / C8=680nF 100V / IC1-2=TL074
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The circuit constitutes a natural extension of Mic-Line balance unit, but can be adapted to any other audio circuit. It is made up of two units in the series: + A classic unit bass/ Treble + A parametric unit of mid frequencies. Both units can also be used autonomously or each one separately, with the required buffer unit, from previous and subsequent circuits. With the R2 we requlate the High frequencies +/- 18 db/oct at 20 KHZ, with R5 the Low frequencies +/- 18bd/oct at 20 KHZ, with R11 the Mid freq. +/- 15 db/oct and with R10 the center of mid freq. at 200 HZ - 6 KHZ band. R1-3=2.7 Kohms / R15=100 ohms / C5=10nF 100V MKT R4=22 Kohms / R2-5-11=47 Kohms Lin. pot. / C6=4.7nF 100V MKT R6-7=5.6 Kohms / R10=2X100 Kohms Log. pot / C7=10uF25V R8-9=22 Kohms / C1=2.2nF 100V MKT / C8-9=100nF 100V MKT R12-13=3.9 Kohms / C2-3=5.6nF 100V MKT / ...
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Bộ lọc High-Pass (Low Cut), tần số cắt từ 20HZ đến 200HZ được chọn thông qua biến trở đôi ~47K.
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IC Reverb DSP tích hợp bộ giãi mã stereo ADC và DAC với tổng cộng 16 chương trình , 8 chương trình tích hợp sẵng trong IC và 8 chương trình do nhà lập trình phát triển nạp vào EEPROM bên ngoài. Bằng cách sử dụng một EEPROM bên ngoài, nhà lập trình có thể tạo ra được các hiệu ứng âm thanh theo ý muốn như: Reverb, Echo, Chorus, Pitch Shift, Crossover, Limiter,.. Với 3 chiết áp điều khiển thời gian thực, 32K RAM Delay , hoạt động ở điện áp 3.3V. IC được thiết kế ở dạng SOIC 28 châ...
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Mạch Kích Điện Dùng Flyback Tivi và MosFET Sơ đồ mạch: (Các linh kiện mang tính tham khảo, bạn có thể thay thế các loại tương đương, hoặc có trị số gần giống mạch) Nguồn cung cấp nên sử dụng từ 12-20v.
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