This project provides 12V output from any USB power source, like PC USB port, USB adapter or power banks. LM2577ADJ boost converter IC is the heart of the project. The IC can handle load up to 800mA, it’s advisable to use only 200mA load on output to be on the safe side. The LM2577 are monolithic integrated circuits that provide all of the power and control functions for step-up (boost), fly back, and forwa ...

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Octavo Creates a 1GHz Computer That Fits into A 27x27mm SiP Package

The OSD335x C-SiP System-in-Package (SiP) developed by Octavo, is a concept package that is modeled on its previous Sitara AM335x based SiP by including up to 16GB eMMC, an oscillator along with 1GB DDR3, PMIC, LDO, and EEPROM. The OSD335x C-SiP, is the most consolidated System-In-Package (SiP) module ever made. Modeled like its predecessors, the OSD335x C-SiP incorporates the Cortex-A8 based Texas Instrume ...

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Troubleshooting a 32kHz Crystal Oscillator

For Project Whack a Mole I need a 32.768kHz crystal oscillator. I found this circuits on the Interwebs and gave it a try: It wouldn’t go. I messed about changing component values for while, then decided to actually try to understand the circuit. Now for an oscillator to work, we need an amplifier with a gain of greater than 1, and a phase shift of 360 degrees to get positive feedback. The circuit above is a ...

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