These are the best 20,000mAh power banks of 2025, packed with fast charging, PD3.1 support, smart features, and global ...

Power banks are a great method of keeping your devices charged on the go, but they typically come with the hassle of cables ...

While wireless power transfer (WPT) has gained traction, most systems rely on inductive charging, which requires bulky ferrite cores and suffers from misalignment issues. Advanced Search Home ...

The efficiency of wireless charging systems is limited by power loss occurring due to frequency changes in the resonant circuits that enable power transfer. These necessary modulations reduce ...

The basic operation of the circuit. Figure 2 shows the generic diagram of a simple wireless charging system. The left part constitutes the transmitter, while the right part constitutes the receiver.

In recent years, a wireless charging topology with inherent constant current (CC) and constant voltage (CV) output conversion through a clamp coil on the transmitting side has been proposed. Because ...

A team of academic researchers show that a new set of attacks called 'VoltSchemer' can inject voice commands to manipulate a smartphone's voice assistant through the magnetic field emitted by an ...