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Position:IcFull.com » IC Electronic information » July,2011 Pages 6

IC Electronic information

A high-precision bandgap voltage reference circuit implementation

In Electronic Infomation Category: A | on July 29,2011

1 Introduction recent years, the analog integrated circuit design technology along with the CMOS process technology has been rapid development border=0> will (1) the temperature differential to get the diode voltage at room temperature when the temperature coefficient border=0> Figure 1 The traditional bandgap reference voltage circuit border=0> appropriately selected, R 2, R 3 a...

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On the high-power long-life LED lighting system solutions

In Electronic Infomation Category: O | on July 29,2011

With the rapid development src="http://tech.icfull.com/2011-07/20110729153909401.jpg"> Figure 1, the chart Main purpose src="http://tech.icfull.com/2011-07/20110729153909402.jpg"> Figure 2, using the 35W T8 lamp ballasts be replaced. Ballasts and datasheet and T8 src="http://tech.icfull.com/2011-07/20110729153909403.jpg"> Figure 3, LED driver in a full AC cycle, the drain-source voltage src="http://tech.i...

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ARM-based embedded platforms and Linux build

In Electronic Infomation Category: A | on July 29,2011

Summary: first introduced the concept of embedded systems, and datasheet and related hardware platforms and price and software versions. Then, introduces embedded Linux bootloader U-Boot porting, as well as open source, free operating system Linux2.6.32.2 transplantation. Finally, the build based on Nand Flash memory Yaffs2 file system, create a root file system using BusyBox. ARM-based embedded systems and suppliers and embedded Li...

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Car multimedia system design digital audio DSP software

In Electronic Infomation Category: C | on July 29,2011

Summary: Details> transfer function defined above six parameters, you can eliminate common multiple, will be converted to five parameters,> > by the transfer function (2) available: equalizer parameters are defined as follows: Fs is the sampling frequency, f0 is the center frequency, dBgain to gain, in decibels, Q is the quality factor (center frequency f0 and datasheet and bandwidth B ratio, Q valu...

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1553B bus interface FPGA-based design

In Electronic Infomation Category: 1 | on July 29,2011

Abstract: In-depth study, based on the 1553B bus standard, introduced an FPGA-based communication module bus interface chip design. Gives the overall design, from both analog and datasheet and digital analysis of the functional modules. Finally, the software used in Xilinx VHDL programming, download the program to hardware development board, verify that the design of the reliability and price and accuracy. MIL-STD-1...

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Intelligent digital switching power supply design

In Electronic Infomation Category: I | on July 29,2011

Introduction compared with the linear power supply, switching power supply has many advantages: Because the main power transistors border=0> 1.1 Main Circuit Analysis power conversion part border=0> 1.2 single chip control system microcomputer control system is the core border=0> ATD0, ATD10 are the voltage and datasheet and current sampling pin will be taken to the analog to digita...

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Analysis of material advantages and disadvantages of common mode inductor

In Electronic Infomation Category: A | on July 29,2011

First talk about the bead bead is commonly used in anti-interference electronic circuit components, have a certain impedance, For good inhibition alt=" Shi Me Shi Gong Mo Dian Gan ?"/> common mode inductor has a very high initial lead magnetic ratio, the ground magnetic field with a large impedance and datasheet and insertion loss/> capacitor capacitance (or capacitance, Capacitance) refers to ...

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Hybrid and electric car battery management skills

In Electronic Infomation Category: H | on July 29,2011

for hybrid electric vehicle (HEV) and datasheet and electric vehicle (EV), the use> Figure 1: electric / hybrid vehicle battery modules> Figure 2: RC circuit converter and price and use the comparison> Figure 3: The second generation> Figure 4a: hardware downtime. Figure 4b: independent power supply. Figure 4c: supply current and suppliers and the mode> Figure 5: LTC6803s internal self-test function. ...

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SJ / T 11393-2009 semiconductor optoelectronic devices Blank detail specification for power LEDs

In Electronic Infomation Category: S | on July 29,2011

Introduction of the blank detail specification for a series of semiconductor optoelectronic devices you look at the detailed specification, and datasheet and should be used with the following criteria from. GB / T 2423.1 Electrical and price and Electronic Products Environmental Testing Part 2: Test methods Test A: low-temperature (idt IEC 60068-2-1) GB / T 4589.1 - 2006 Semiconductor devices discrete device...

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AD7879 based the "two touch" gesture recognition system to achieve

In Electronic Infomation Category: A | on July 29,2011

Introduction in many consumer electronics applications, capacitive touch technology with the highest market share border=0> Figure 1. (A) the structure border=0> Figure 2 resistive touch screen, two basic models 3 Gesture Recognition to "kneading" (pinch) as an example to better describe the gesture recognition works. Kneading gestures from two separate fingers touch the d...

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