Charger for vehicles
AssigneeHyundai Motor Company
InventorsJin Young Yang, Dae Woo Lee, Jong Pil Kim, Si Hun Yang, In Yong Yeo, Byeong Seob Song, Woo Young Lee
Life of this patent
Estimating the term…
Abstract
A device and method are provided for a charger for vehicles. In particular, the charger includes, an AC/DC converter configured to convert a commercial alternating current power source to a direct current power source and a DC/DC converter configured to convert the direct current power source applied from the AC/DC converter to a battery charging power source. The direct current power source is supplied to a battery. The DC/DC converter includes a snubber circuit that reduces the magnitude of a ripple current of the charging power source.
Claims6
A charger for vehicles, comprising:
- an (alternating current/direct current) AC/DC converter configured to convert a commercial alternating current power source to a direct current power source;
- and
- a DC/DC converter configured to convert the direct current power source applied from the AC/DC converter to a battery charging power source and supply the direct current power source to a battery,
- wherein the DC/DC converter includes;
- a second rectifier configured to rectify a secondary alternating current power source of the transformer to a direct current power source;
- and
- a snubber circuit which reduces a magnitude of a ripple current of the charging power source,
- wherein the snubber circuit comprises:
- a first filter configured to suppress a surge voltage of the second rectifier and having a first filter reducing the ripple current;
- a first diode configured to be connected to an output of the second rectifier;
- a first capacitor configured to be connected in series to the first diode;
- and
- a second diode configured to be connected with the first diode in parallel,
- wherein the first filter comprises:
- an inductor configured to be directly connected to a cathode of the second diode;
- and
- a second capacitor configured to be connected with the inductor in parallel, and
- wherein the slope of the charging current of the first capacitor is reduced by the second capacitor and the inductor during a charging operation.
Dependencies are inferred from the claim text.