Disclosed is a handheld fan, which includes a holding part, a fan head and a control device. The holding part is provided with an accommodating space inside, and is equipped with a discharge port and a charging port. The discharge port is configured for el...

Embodiments of this application provide a voltage conversion circuit, a charging management module, and an electronic device, and relate to the field of electronic technologies, to resolve a severe heat generation problem caused by uneven current distribut...

A system and method for determining a charge rate for a battery and a method for charging the battery. The system having a memory component for storing user attributes relating to use patterns based on time of day; and a processor for determining the charg...

The storage circuit (10) has capacitors (12, 14, 16, 18, 20, 22) i.e. double-layered capacitors, and a positive temperature coefficient thermistor (24), which charges the capacitors and defines current flow during a charging process. A diode (32) discharge...