MAX1811 USB mobile phone emergency charger circuit diagram
#USB
#mobile phone
#emergency charger
#MAX1811
#power management
#lithium-ion
#circuit diagram
#portable charger
No description available.
USB to RS232 converter
The FT8U232AM requires a small number of external components to produce a device that converts USB to TTL level RS232 signals. All that is needed is a TTL to RS232 converter to provide the 12V RS232 logic levels. The FT8U232AM...
Lithium ion battery charging circuit diagram
A lithium-ion battery charging circuit is illustrated above. Initially, when charging begins, if the battery voltage is below 8.4V, the output of IC1 is inactive. As a result, Q2 remains off, and the LM317 operates in constant current mode. When...
USB Data Acquisition
The Universal Serial Bus (USB) has become a widely adopted technology for connecting computer peripherals. It is present on nearly every new computer and typically offers a seamless connection method for a variety of consumer electronics devices such as digital...
MAX3420 Maxim USB Peripheral Controller
The MAX3420 is a USB peripheral controller chip featuring an SPI bus. This document aims to provide sufficient information for effective utilization of the device in various projects. The MAX3420 simplifies the integration of a USB interface into a circuit...
Power Supply For USB Devices
Although a matching charger is typically included in the package, some devices can only be charged via a USB port. This is not surprising for USB MP3 players, which need to dock with a PC for file transfers. However, this...
USB Switch For Printers
This circuit switches a printer's USB connection between a PC and a laptop. The goal was to create a method for allowing the laptop to use the printer occasionally while maintaining the printer's connection to the PC at all other...
The Itsy-Bitsy USB Lamp
It connects to the USB port and is ideal for checking motherboard switches and jumper settings. Many users may recall a commercial product from a few years ago, the "Itty Bitty Book Light," which was designed to clip onto a...
USB Printer Share Switch Circuit Project
This device enables two computers to share a single USB printer or other USB devices such as an external flash drive, memory card reader, or scanner. A rotary switch is used to select the PC that will connect to the...
Wiring diagram check up for usb interfaced avr
The 5 V from USB appears to be powering the LED on the laptop power brick. Therefore, even when the power brick is turned off at the wall outlet, the LED remains illuminated. When the USB is unplugged, the LED...