Patent ID: 9236747
Filing Date: 2016-01-12
CPC Classification: H01M,H02J,Y02E

Claim Text:
1. An electronic device, comprising: a load which has a desired function; a power source which has supply power less than consumption power of operation of the load; a capacitor to be charged with electric power based on the supply power; and a charge/discharge control circuit which controls charging of the capacitor with the electric power based on the supply power and consumption of charged power of the capacitor by the load, wherein the charge/discharge control circuit comprises: a first node to which the electric power based on the supply power is supplied; a second node to which the capacitor is coupled; and a circuit connected between the first node and the second node configured to charge the capacitor via the second node from power received at the first node; and wherein when a voltage of the first node is a predetermined voltage or more, the circuit is configured to reduce or discontinue charging of the capacitor, and thereafter the load is operated by the charged power of the capacitor.