The purpose of a PLL is to generate a frequency and phase-locked output oscillation signal. To accomplish this objective, past methods primarily worked by adjusting the PLL output frequency often based on the phase error (i.e. the faster/slower phase relationship) to produce a temporary, non-constant frequency and phase-locked output oscillation signal. The constant fluctuation in
Frequency and Phase Locked Loops (PLL) Continue Reading
A voltmeter is an important tool on the workbench of every electronics hobbyist, maker or hardware design engineer. As its name suggests, allows the user to measure the voltage difference between two points. For today’s tutorial, we will look at how you can build an Arduino based DIY voltmeter, for use in situations where you
ARDUINO VOLTMETER USING SH1106 OLED DISPLAY Continue Reading
A good friend of mine who’s a teacher was doing quizzes in her class making students compete to answer questions… resulting in them complaining they raised their hands before the others. I decided to give her this quiz show type buzzer for Christmas to solve her problems. When one of the players press it’s button
Arduino quiz show buzzer Continue Reading
There are several ways to produce a negative voltage from a positive voltage source, including using a transformer or two inductors and/or multiple switches. However, none are as easy as using the LTC3863, which is elegant in its simplicity, has superior efficiency at light loads and reduces parts count compared to alternative solutions. Advanced Controller
Stamou Tasos, hailing from Greece, finished this DIY 300B triode amplifier project. In appreciation for the 300B amplifier schematics, Stamou has provided his own version of the 300B single-ended (SE) tube amplifier schematic by J.C. Morrison. I helped with translating, formatting, and showcasing his DIY 300B triode amplifier project. – Giovanni Militano – Editor I
DIY 300B Single-Ended-Triode (SET) Hi-Fi Amplifier Continue Reading
What could be better than a Halloween decoration? Something more perennial, or even something that could also be found in a classroom or lab. Something like [Markus Bindhammer]’s spooky muscle-brain interface. It was inspired by a series called “Tales From the Loop” in which a character’s muscle electrical activity is measured in preparation to adjust his
2023 HALLOWEEN HACKFEST: A SPOOKY MUSCLE-BRAIN INTERFACE Continue Reading
ROHM Semiconductor Ultra Compact MOSFETs & Bipolar Transistors have the smallest transistor package on the market which is optimized for thin, compact portable devices. The VML0806 case type measures just 0.8mm×0.6mm, with a height of only 0.36mm. As portable devices, such as smartphones and digital cameras get smaller and more sophisticated, thinner, more compact components
Rohm claims to have smallest transistor package Continue Reading
Description 5W Stereo Audio Amplifier project based on BA5406 IC which is suitable for application like stereo radio cassette player, stereo components systems etc. The Heart of the project, BA5406 is a dual OTL monolithic power IC with two built-in, high output speaker amplifier circuits. High output of 5W×2 can be produced when VCC=12 V
5W Stereo Audio Amplifier Project Based On BA5406 Continue Reading
The ZL70250 ultra-low-power radio frequency (RF) transceiver provides a wireless link in applications where power consumption is of primary importance. The transceiver’s ultra low-power requirements allow battery miniaturization or the use of energy-harvesting methods, enabling devices with an extremely small form factor. The availability of the transceiver in a CSP form factor combined with the
Microsemi very low power RF chip for patient monitors Continue Reading
Description The bq2510x series of devices are highly integrated Li-Ion and Li-Pol linear chargers targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The bq2510x has a single power output that charges the battery. A system load can be placed in parallel with the battery as
BQ25100 – 250-mA Single Cell Li-Ion Battery Charger Continue Reading
