tag:blogger.com,1999:blog-13855434767769092762009-10-14T05:06:50.683-07:00Bloggernoreply@blogger.comBlogger57125tag:blogger.com,1999:blog-1385543476776909276.post-63194450289804271842008-04-22T08:52:00.000-07:002008-12-09T13:08:31.717-08:00

The Art of Electronicsby Paul HorowitzThis is the thoroughly revised and updated second edition of the hugely successful The Art of Electronics. Widely accepted as the authoritative text and reference on electronic circuit design, both digital and analog, this book revolutionized the teaching of electronics by emphasizing the methods actually used by circuit designers – a combination of some

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-63328939352609069082008-03-16T11:13:00.000-07:002008-03-16T11:18:23.074-07:00

16 V, 76 A, Single N-Channel, DPAK/IPAKFeatures• Trench Technology• Low Capacitance to Minimize Driver Losses• Optimized Gate Charge to Minimize Switching Losses• Low RDS(on) to Minimize Conduction Losses• These are Pb-Free DevicesApplications• Low Side Switching• DC/DC ConvertersDownload datasheet [PDF]

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-17144322029473550332008-03-16T11:02:00.000-07:002008-03-16T11:10:42.526-07:00

Dual Output DC/DC Converter Solutions for Xilinx FPGA Based SystemsXilinx field-programmable gate arrays require at least two power supplies: VCCINT for core circuitry and VCCO for I/O interface. For the latest Xilinx FPGAs, including Virtex-II Pro, Virtex-II and Spartan-3, a third auxiliary supply, VCCAUX may be needed. In most cases, VCCAUX can share a power supply with VCCO. The core voltages,

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-51270270564308365062008-03-16T10:56:00.000-07:002008-03-16T11:01:54.805-07:00

Power Amplifiers from elecfree.com 20 Watt Power Amplifier 4-WATT AF AMPLIFER 50 Watt Amplifier 20 Watt Power Amplifier (IC) 22 Watt Stereo Amplifier

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-10129634936187201022008-03-09T03:27:00.001-07:002008-03-09T03:27:54.332-07:00

The PIC10F204/206 microcontrollers have a built-in comparator which can be utilized to detect different discrete voltage levels. This technical brief describes one technique for detecting two or more such voltages as different trip points.Detecting Multiple Voltages Using the PIC10F204/206 Comparator [PDF]

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-44799099810215536992008-03-09T03:24:00.000-07:002008-03-09T03:29:28.513-07:00

The Microchip Technology Inc. MCP6271/1R/2/3/4/5 family of op amps provide wide bandwidth for the current. This family has a 2 MHz GBWP and a 65° Phase Margin. This family also operates from a single supply voltage as low as 2.0V, while drawing 170 µA (typ.) quiescent current. The MCP6271/1R/2/3/4/5 supports rail-to-rail input and output swing, with a common mode input voltage range of VDD + 300

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-77570717074538943892008-03-09T03:21:00.000-07:002008-03-09T03:24:21.737-07:00

It is vital for designers of embedded control products to select the most suitable controller and companion devices. Embedded control products are found in all market segments: consumer, telecommunications, industrial, PC peripherals and automotive. Most embedded control products must meet special requirements: cost effectiveness, low-power, small-footprint and a high level of system integration

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-30899660845223910782008-02-21T08:23:00.001-08:002008-02-21T08:23:57.761-08:00

PWM fan speed control methodology pulse-width modulates a fan’s full-rated power supply voltage at a low frequency, typically 30 Hz. A typical PWM circuit, consisting of a transistor in series with a fan, can be small and inexpensive because it is either fully on or completely off. This efficient control methodology affords a very wide speed-control range (typically 10% to 100% of full speed)

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-54974436390506300172008-02-21T08:21:00.000-08:002008-02-21T08:22:52.376-08:00

Fan speed control extends fan service life and decreases acoustic airflow noise and average fan current. The most efficient way to implement fan speed control is to use low frequency pulse width modulation (PWM). However, PWM fan speed control can sometimes introduce unwanted acoustic noise at a frequency equal to that of the PWM itself. This is especially noticeable when PWM control is used with

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-5597244891137210672008-02-21T08:19:00.000-08:002008-04-22T09:57:01.207-07:00

Brushless DC fan speed can be varied using pulse-width modulation. The typical pulse-width modulation control scheme inserts a power switch in series with the fan. In such applications, an increase in the active duty cycle causes a corresponding increase in fan speed (i.e., fan speed is proportional to tON/(tON + tOFF). Conventional wisdom states that pulse-width modulation duty cycle alone

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-84655884043532946792008-02-07T09:13:00.000-08:002008-02-07T09:15:14.321-08:00

This document details the theoretical and application aspects of the LT1088 thermal RMS/DC converter. The basic theory behind thermal RMS/DC conversion is discussed and design details of the LT1088 are presented. Circuitry for RMS/DC converters, wideband input buffers and heater protection is shown.Download document [PDF]

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-72415958025328362622008-02-07T09:10:00.000-08:002008-02-07T09:12:17.802-08:00

Applications often require an amplifier that has extremely high performance in several areas. For example, high speed and DC precision are often needed. If a single device cannot simultaneously achieve the desired characteristics, a composite amplifier made up of two (or more) devices can be configured to do the job. This document shows examples of composite approaches in designs combining speed,

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-56515096158677616582008-02-07T09:09:00.000-08:002008-02-07T09:10:46.670-08:00

This document discusses the principles of operation of the LTC1062 and helpful hints for its application. Various application circuits are explained in detail with focus on how to cascade two LTC1062s and how to obtain notches. Noise and distortion performance are fully illustrated.Download document [PDF]

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-75345798551521727312008-01-30T11:04:00.000-08:002008-01-30T11:07:36.314-08:00

Circuits for clock sources are presented. Special attention is given to crystal-based designs including TXCOs and VXCOs.Download document [PDF]

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-80737136265775830722008-01-30T11:03:00.000-08:002008-01-30T11:04:20.245-08:00

The AN10 begins with a survey of methods for measuring op amp settling time. This commentary develops into circuits for measuring settling time to 0.0005%. Construction details and results are presented. Appended sections cover oscilloscope overload limitations and amplifier frequency compensation.Download document [PDF]

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-54506879047870596052008-01-30T11:01:00.000-08:002008-01-30T11:03:14.055-08:00

A discussion of circuit, layout and construction considerations for low level DC circuits includes error analysis of solder, wire and connector junctions. Applications include sub-microvolt instrumentation and isolation amplifiers, stabilized buffers and comparators and precision data converters.Download document [PDF]

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-43121569967974271662008-01-30T10:59:00.000-08:002008-01-30T11:01:27.723-08:00

Application considerations and circuits for the LT1001 and LT1002 single and dual precision amplifiers are illustrated in a number of circuits, including linearized platinum RTD circuits, strain gauge signal conditioners, an ultra precision dead zone circuit for motor servos and other examples.Download document [PDF]

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-53960430367868546872008-01-30T10:46:00.000-08:002008-01-30T10:57:57.692-08:00

6 applications utilizing thermally based circuits are detailed. Included are a 50MHz RMS to DC converter, and anemometer, a liquid flow meter and others. A general discussion of thermodynamic considerations involved in circuitry is also presented.Download document [PDF]

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-19417861834098378892008-01-29T10:00:00.000-08:002008-01-29T10:02:19.898-08:00

Automobiles, marine vehicles, aircraft, uninterruptible power supplies and telecom hardware represent areas utilizing series connected battery stacks. These stacks of individual cells may contain many units, reaching potentials of hundreds of volts. In such systems it is often desirable to accurately determine each individual cell’s voltage. Obtaining this information in the presence of the high

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-39134551388630079172008-01-29T09:55:00.000-08:002008-01-29T10:00:22.444-08:00

The LTC3219 is a 250mA LED driver which illuminates 9 Universal LEDs (ULEDs). The ULEDs are considered universal because they may be individually turned on or off, set in general purpose output (GPO) mode, set to blink at a selected on-time and period, or gradate on and off at a selected gradation rate. This device also has an external enable (ENU) pin that may be used to blink, gradate, or turn

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-32205710277954443482008-01-29T09:53:00.000-08:002008-01-29T09:55:09.744-08:00

This document provides an extensive guideline for the thermal performance of the LTM4601 μModule. The LTM4601 is characterized with and without heatsinking over an extended operating temperature range. De-rating curves are derived with the different heatsinking types, and the equivalent θJA (thermal resistance) is derived. The different θJA parameters are tabulated with reference to the different

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-73198402553991958532008-01-29T09:49:00.000-08:002008-01-29T09:52:59.170-08:00

The LTC3207/LTC3207-1 is a 600mA LED/Camera driver which illuminates 12 Universal LEDs (ULEDs) and one camera flash LED. The (ULEDs) are considered universal because they may be individually turned on or off, set in general purpose output (GPO) mode, set to blink at a selected on-time and period, or gradate on and off at a selected gradation rate. This device also has an external enable (ENU) pin

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-43152708452351377372008-01-29T09:47:00.001-08:002008-01-29T09:48:57.237-08:00

The voltage range of Linear Technology's PowerPath circuits can be easily extended with just a few components, thus allowing them to meet the needs of virtually all applications. This document presents solutions for circuits that must withstand large negative voltages, a reverse adapter input for example, and circuits that must withstand large positive inputs, such as automotive

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-10660641350022976952008-01-29T09:43:00.000-08:002008-01-29T09:47:43.809-08:00

Semiconductor memory, disc drives, microprocessors, card readers, piezoelectric devices and digitally based systems furnish transient loads that a voltage regulator must service. Ideally, regulator output is invariant during a load transient. In practice,some variation is encountered and becomes problematic if allow able operating voltage tolerances are exceeded. This mandates testing the

Bloggernoreply@blogger.com0tag:blogger.com,1999:blog-1385543476776909276.post-14024685805942940062008-01-29T09:41:00.000-08:002008-01-29T09:43:09.599-08:00

This publication provides an extensive guideline for the thermal performance of the LTM4600 µModule. The LTM4600 is characterized with and without heatsinking over an extended operating temperature range. De-rating curves are derived with the different heatsinking types, and the equivalent θJA (thermal resistance) is derived. The different θJA parameters are tabulated with reference to the

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