High Voltage Capacitor Charger for Photo-Flash Using LT3751
https://www.electronics-lab.com/high-voltage-capacitor-charger-photo-flash-using-lt3751/
The project is built for professional photo flash systems. Circuit generates high voltage from low voltage battery to operate a photo-flash tube. The project can also be used in other applications like high voltage capacitor charger, emergency strobe, high voltage power supply, security, detonators etc. LT3751 is the heart of the project. The LT3751 is […]
A new type of flexible micro-supercapacitors
https://www.electronics-lab.com/new-type-flexible-micro-supercapacitors/
Researchers from Nanyang Technological University in Singapore build a new type of flexible supercapacitor that aims to be used in wearables and other portable electronics such as T-shirts charging mobile phones. The new type of capacitor is made with out-of-plane wavy structures of graphene micro-ribbons specially placed so that they don’t break when stretched while […]
How to Make an Arduino Capacitance Meter
https://www.electronics-lab.com/make-arduino-capacitance-meter/
circuitbasics.com has a tutorial on how to measure capacitance using arduino. With all the different ways capacitors are labeled, figuring out the values of your capacitors can be challenging. Especially if you don’t have a digital multi-meter to test them. In this tutorial, I’ll show you how to build three different capacitance meters using an Arduino and a couple […]
Arduino Capacitance Meter Using TM1637
https://www.electronics-lab.com/arduino-capacitance-meter-using-tm1637/
In this instructable by gustavio101 you will know how to make a capacitance meter using Arduino displayed on the TM1637 display with a range from 1 uF to 2000 uF. To build this project you need the following parts: Resistors 1x: 220 Ohm 1x: 10 kOhm, 8000 Ohms also would work depending on your code […]
Capacitor self-diagnostics
https://www.electronics-lab.com/capacitor-self-diagnostics/
Peter Demchenko discuss about a design idea on how to test capacitors in circuit. The electrolytic capacitor is far from being the most reliable electronic component. One of its failure modes – a gradual loss of capacity – can hardly be noticed until power supply malfunction occurs. Thus, any chance to monitor the condition of […]
Analog Capacitor ESR Tester
https://www.electronics-lab.com/analog-capacitor-esr-tester/
TallMan’s lab @ runawaybrainz.blogspot.com build a nice looking and simple analog ESR capacitor meter based on a EEVBlog forum topic. I finally got round to making my capacitor ESR tester this week after finding a nice simple 5 transistor version by EEVBlog member Jay_Diddy_B. Unfortunately, for me, the design was only SMD so, I decided to […]
Circuit lets you test capacitors for leakage
https://www.electronics-lab.com/circuit-lets-you-test-capacitors/
Raju R Baddi @ edn.com has published a circuit that enable you to test electrolytic capacitors and decide if worth using it on a circuit. The values in the figure are typical for general testing of all capacitors, from 1-nF ceramic versions to 1000-μF electrolytic types. The value of CREF in the circuit is near […]
LTC3643 – 2A Bidirectional Power Backup Supply
https://www.electronics-lab.com/ltc3643-2a-bidirectional-power-backup-supply/
Linear Technology Corporation introduces the LTC3643, a bidirectional, high voltage boost capacitor charger that automatically converts to a buck regulator for system backup. The proprietary, single-inductor topology with integrated PowerPath™ functionality does the work of two separate switching regulators, reducing size, cost and complexity. The LTC3643 operates in two modes – boost charge mode and […]
Component Tester FISH 8840 Review
https://www.electronics-lab.com/component-tester-fish-8840-review/
Alan Parekh @ hackedgadgets.com has a review of a cheap component tested he found on ebay. This device can test bipolar transistors, MOSFET, diodes, thyristors, resistors and capacitors. He writes: This is an inexpensive component tester called the FISH 8840 which you can find from many online eBay retailers for around $30. The interface is very […]
OpenCVMeter – Rediscover Your Capacitors
https://www.electronics-lab.com/opencvmeter-rediscover-your-capacitors/
OpenCVMeter is an open source tool to measure capacitance and leakage current as a function of a capacitor’s working voltage. When designing circuits, many hobbyists take capacitors for granted – but each type (ceramic multi-layer, aluminum electrolytic, tantalum, mica…) has its own unique properties. Nowadays, ceramic capacitors are the most commonly used capacitors in the […]