voltage

KEMET RELEASES NEW TANTALUM POLYMER CAPACITORS1

KEMET RELEASES NEW TANTALUM POLYMER CAPACITORS

KEMET released the Tantalum Stack Polymer (TSP) O 7360-43 and the 82uF/75V rated voltage extension in Polymer Hermetically Sealed. The TSP series was designed to allow for the highest capacitance/voltage (CV) ratings in surface mount device (SMD) capacitors. The company’s KO-CAP® High Reliability Series T540, T541 and T543 are all available for stack configuration in the TSP

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Obstacle Avoidance Robot

Smart Home Automation Using Arduino: A Comprehensive Guide for Engineers

Arduino serves as a foundational device for constructing electronic projects. It comprises a pre-programmed microcontroller or integrated development environment for coding and uploading onto the physical board. These devices facilitate the creation of interactive objects, receiving input from diverse sensors and managing motors, lights, and various outputs. Unlike requiring a separate programmer, Arduino allows direct

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ERASING EEPROMS ISNT ALWAYS AS EASY AS IT SEEMS

ERASING EEPROMS ISN’T ALWAYS AS EASY AS IT SEEMS

When is 14 volts not actually 14 volts? Given [Anders Nielsen]’s recent struggles with erasing an old-school EEPROM, it’s when you really need it that things tend to go pear-shaped. A little background is perhaps in order. [Anders] is working on a scratch-built programmer for ROMs to complement his 65uino project, which puts a complete 6502 computer into the

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ARDUINO MEASURES REMAINING BATTERY POWER WITH ZERO COMPONENTS NO I O PIN

ARDUINO MEASURES REMAINING BATTERY POWER WITH ZERO COMPONENTS, NO I/O PIN

[Trent M. Wyatt]’s CPUVolt library provides a fast way to measure voltage using no external components, and no I/O pin. It only applies to certain microcontrollers, but he provides example Arduino code showing how handy this can be for battery-powered projects. The classical way to measure a system’s voltage is to connect one of your MCU’s

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LED TESTER ALSO CALCULATES RESISTOR FOR TARGET VOLTAGE

LED TESTER ALSO CALCULATES RESISTOR FOR TARGET VOLTAGE

[mircemk] built a slick-looking LED tester with a couple handy functions built in. Not only can one select a target current to put through an LED, but by providing a target voltage, the system will automatically calculate the necessary series resistor. If for example the LED is destined for 14 V, this device will not only show

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SIMPLE FIXTURE DETERMINES LEAKAGE OF CAPACITORS AND SEMICONDUCTOR SWITCHES1

SIMPLE FIXTURE DETERMINES LEAKAGE OF CAPACITORS AND SEMICONDUCTOR SWITCHES

The circuit in Figure 1a comprises a voltage follower, IC1 , and the reference-voltage source of IC2. IC1 is an Analog Devices AD8661 op amp, which has a guaranteed input-bias current of no more than 1 pA and a typical input-bias current of 0.3 pA (Reference 1), and IC2 is an Analog Devices ADR391 precision voltage reference (Reference 2). The manufacturer trims

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BUILDING A CHAOTIC OSCILLATOR FROM COMMON COMPONENTS1

BUILDING A CHAOTIC OSCILLATOR FROM COMMON COMPONENTS

Sometimes you find things you have not even been looking for… A chaotic oscillator is an electronic circuit that can exhibit “chaotic“, nonperiodic behavior. A commonly cited example is Chua’s circuit, but there are many others. I always regarded these as carefully designed, rather academic, examples. So I was a bit surprised to observe apparently chaotic behavior

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PI PICO BECOMES SRAM FOR 1981 EDUCATIONAL COMPUTER

PI PICO BECOMES SRAM FOR 1981 EDUCATIONAL COMPUTER

Ever since the Raspberry Pi Pico was introduced in early 2021 we’ve seen the tiny Pi being used for an astonishing variety of applications. It has powered countless clocks, gadgets, games, and accessories for all kinds of computers old and new. [Michael Wessel] has recently added an interesting new application in the “old computer” category,

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