Category: Power
Analysis of buck converter efficiency
Tech note from Richtek on buck converter profiling. Link here The synchronous buck circuit is wildly used to provide non-isolated power for low voltage and high current supply to system chip. To realize the power loss of synchronous buck converter and to improve efficiency is important...
Continue ReadingDIY 18650 Powerwall with onboard BMS
peter6960 shared a new project. It' s about a 18650 cells power brick with onboard battery management system. He writes: While I cannot afford a Tesla PowerWall, I’ve spent some time drawing up a PCB to house 7x 18650 cells in series. Each board has onboard Battery Management:...
Continue Reading5W USB Type-C Power Delivery 3.0 Adapter Reference Design
The EVLSTCH03-45WPD 45W USB Type-C® Power Delivery 3.0 adapter from STMicroelectronics is a USB-IF certified solution and reference design. The EVLSTCH03-45WPD is an isolated ac-dc power supply with a standalone USB PD controller. The board implements at the primary side a...
Continue ReadingHigh efficiency: A multi-mode, forced-frequency-resonant digital controller IC for SMPS applications
Infineon Technologies launches the XDP™ digital power XDPS21071, the first flyback controller in the industry with zero-voltage switching (ZVS) on the primary side to achieve high efficiency. This controller is aimed at fast-charging applications such as USB-PD or QuickCharge....
Continue ReadingNovasom launches PoE adapters designed to the IEEE802.2AX standard
With the diffusion of the IoT (Internet of things) and the numbers of Wi-Fi and wireless nodes continuing to grow together the applications requiring power (more than you can do with a battery and/or an ultra-low consumption node), the idea of using only one cable to bring connectivity...
Continue ReadingMeet the Next-gen Lithium-Sulfur Batteries
What would you give for a battery, 5x the storage capacity of whatever you’re reading from? Well, the countdown to commercial availability for batteries of this type of capacity has already begun and it would be considerably cheaper than then currently available batteries. This...
Continue ReadingNXE1S0303MC – 3.3V 303mA, 1W DC-DC Converter has Embedded Transformer
The NXE1 series is a new range of low cost, lower profile, fully automated manufacture surface mount DC-DC converters. The NXE1 series automated manufacturing process with substrate Embedded Transformer, offers increased product reliability and repeatability of performance in a...
Continue ReadingFree Elektor Article: 0-30V Lead-acid Battery Activator
A well-known electronics store has been selling a very simple lead-acid battery activator for many years. Although I can't prove it, my lead-acid batteries do seem to last longer since I started using the activator. The principle behind this circuit is very simple. The battery is loaded...
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