Patent ID: 7872451
Filing Date: 2011-01-18
Classification: H02J,Y02T

Abstract:
1. A charging apparatus mounted on a vehicle to charge a battery mounted on the vehicle, comprising: a generator that generates electric power to output voltage for charging the battery; a controller, which is located outside the generator, that outputs a pulse signal for controlling a generated state of the generator; a reception device that receives the pulse signal outputted from the controller; a filter that removes, from the received pulse signal, a pulse signal having cycles different from a cycle of the received pulse signal; a calculator that calculates a duty ratio of the pulse signal having a cycle which agrees with the cycle of the received pulse signal, depending on a filtered result of the filter; a voltage regulator that regulates a voltage outputted from the generator according to the duty ratio calibrated by the calculator; an acquisition unit that initially acquires the cycle of the pulse signal received by the reception device when the charging apparatus is activated; and a storage that stores information indicative of the cycle of the received pulse signal acquired by the acquisition unit, wherein the filter is configured to remove, from the received pulse signal, the pulse signal whose cycle is different from the information indicative of the cycle stored in the storage.