query: Switching from battery to usb power source
positive_passages.docid: 23815
positive_passages.text: switch between battery and usb power no microcontroller circuit
negative_passages.docid: 65951
negative_passages.text: Can as device that runs of USB be powered from a charger?
negative_passages.docid: 37100
negative_passages.text: Using a higher current charger on a laptop which requires a lower current
negative_passages.docid: 51977
negative_passages.text: Switching between 2 power supplies upon dropping below cutoff voltage efficiently
negative_passages.docid: 69492
negative_passages.text: How to create automatic dual battery changeover/switching circuit for uninterruptible power?
negative_passages.docid: 119534
negative_passages.text: How to force variable voltage fast charging power bank to output a certain voltage?
negative_passages.docid: 135049
negative_passages.text: Is it safe, or even possible, to draw more power from a USB port than it was designed to provide
negative_passages.docid: 125286
negative_passages.text: How do I change an AC outlet into a switched outlet using wireless technology?
negative_passages.docid: 66593
negative_passages.text: LiPo Charging Ciruit - Switching Help
negative_passages.docid: 34780
negative_passages.text: How can I limit battery charging to 80% capacity?
negative_passages.docid: 43676
negative_passages.text: Is it possible to power a cordless drill from wall socket adapter?
negative_passages.docid: 132979
negative_passages.text: How to charge this battery?
negative_passages.docid: 24801
negative_passages.text: How can I duplicate Apple's tiny USB power adapter?
negative_passages.docid: 83091
negative_passages.text: Draw power from a portable mobile charger to power circuits
negative_passages.docid: 137995
negative_passages.text: Powering a circuit from either USB or LIPO
negative_passages.docid: 117910
negative_passages.text: How to drive multiple LEDs from a Li-ion battery (with varying voltage)?
negative_passages.docid: 36841
negative_passages.text: Generating high voltage (100V+) from 5V USB supply