Patent ID: 8278781
Filing Date: 2012-10-02
Classification: H01M,H02J,H02M,Y02E

Abstract:
1. A discharger comprising: step-down means including at least a switching element provided between a DC power supply and an output to a load; control means for controlling an output voltage to the load by controlling the switching element, and if a predetermined condition holds, stopping power output to the load by setting the switching element in an open state, wherein said control means includes means for i) determining that the predetermined condition holds, when detecting that an input voltage from the DC power supply has become not more than a predetermined first set value, and ii) resuming power output to the load by setting the switching element in one of a state of a switching element being activated into its switching operation to drop a voltage input thereto from a DC power supply to a desired voltage to be output to a load and a short-circuited state when detecting an input voltage from the DC power supply has become not less than a second set value larger than the first set value after the input voltage from the DC power supply has become not more than the first set value and the switching element has been set in an open state.