Discover how to build a simple wireless power transfer system at home using readily available components like enameled copper wire, an LED, a 2N2222A transistor, and a 9V battery. This step-by-step ...

Sometimes, it is useful to transmit a low-power radio signal to create a beacon, to send a signal carrier to a near receiver, to transmit in QRP or QRPP mode, and so on. The circuit shown here is very ...

Linear Tech has introduced a wireless power transmitter to complement its wireless receiver ICs for the wireless charging market. The LTC4125 is a simple, high performance monolithic full bridge ...

1. When ac excitation is applied to the transmitter (lower) coil, it generates a magnetic field. When the receiver (upper) coil is placed in proximity and aligned with the transmit coil, that magnetic ...