TAILIEUCHUNG - Robot Builders Source Book - Gordon McComb Episode 2 Part 3

Tham khảo tài liệu 'robot builders source book - gordon mccomb episode 2 part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 462 RETAIL-CENERAL ELECTRONICS A printed catalog costs 3 or you can download it free from the site you need Adobe Acrobat Reader to view it . Among their product line useful in robotics is Motors DC and stepper Stepper motor controllers Power MOSFETs H-bridge ICs including the oft-cited L293D L297 and L298 Atmel AVR microcontrollers Small CCD video cameras Tools Solenoids and relays Product datasheets in PDF format are available for download for many of the specialty semiconductor products. 1 x 8 a Stocking Up Integrated Circuits Integrated circuits let you construct fairly complex circuits from just a couple of components. Although there are literally thousands of different ICs some with exotic applications a small handful crops up again and again in hobby projects. You should keep the following common ICs in ready stock 555 timer. This is by far the most popular integrated circuit for hobby electronics. With just a couple of resistors and capacitors the 555 can be made to act as a pulser a timer a time delay a missing-pulse detector and more. LM741 op-amp. The 741 can be used for signal amplification differentiation integration sample-and-hold and a host of other useful applications. The 741 is available in a dual version the 1458. Note that there are numerous other op-amps available and some have design advantages over the 741. These include the LM324 LF356 and the TL082. LM339 quad comparator. Comparators are used to compare two voltages. The output of the comparator changes depending on the voltage levels at its two inputs. The comparator is similar to the op-amp except that it does not use an external feedback resistor. You can use an op-amp as a comparator but a better approach is to use something like the 339 chip which contains four comparators in one package. LM386 audio amplifier. This common and versatile single-package audio amplifier can drive an ordinary 8-ohm speaker with up to a quarter of a watt. Only a couple of capacitors are needed to complete

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