Enjoy your
FREE PREVIEW which shows only 2022 data and 25 documents. Contact
Patent Forecast for full access.
Z-ARCHIVE-Energy Storage: Bidirectional Direct Current Converters
Search All Patents in Z-ARCHIVE-Energy Storage: Bidirectional Direct Current Converters
Patent US10389231
Issued 2019-08-20
Apparatus And Method For Preventing Reverse Current In Dc-dc Converter Of Vehicle
An apparatus and a method for preventing a reverse current in a DC-DC converter of a vehicle including a measurement portion configured to measure an output voltage of the DC-DC converter of the vehicle; a verification portion configured to verify a difference between the output voltage and a preset reference output voltage at every preset period; and a controller configured to control a switch of a synchronous rectification circuit, which is implemented at a secondary side of a main transformer of the DC-DC converter, to be in an ON or OFF state according to the difference between the output voltage and the preset reference output voltage.
Much More than Average Length Specification
View the Patent Matrix® Diagram to Explore the Claim Relationships
USPTO Full Text Publication >
- 1. An apparatus for preventing a reverse current in a direct current (DC)-DC converter of a vehicle, comprising:
a measurement circuit configured to measure an output voltage of the DC-DC converter of the vehicle; a verification circuit configured to verify a difference between the output voltage and a preset reference output voltage at every preset period; a controller configured to control a switch of a synchronous rectification circuit, which is implemented at a secondary side of a main transformer of the DC-DC converter, to be in an ON or OFF state according to the difference between the output voltage and the preset reference output voltage; wherein the verification circuit verifies whether a value of the output voltage is less than a value that is obtained by subtracting a preset error from a value of the preset reference output voltage; and the controller is configured to control the switch of the synchronous rectification circuit to be in an OFF state when the value of the output voltage is verified through the verification circuit to be less than the value that is obtained by subtracting the preset error from the value of the preset reference output voltage.
- 7. A method for preventing a reverse current in a DC-DC converter of a vehicle, comprising:
measuring an output voltage of the DC-DC converter of the vehicle; verifying a difference between the output voltage and a preset reference output voltage at every preset period; controlling a switch of a synchronous rectification circuit, which is implemented at a secondary side of a main transformer of the DC-DC converter, to be in an ON or OFF state according to the difference between the output voltage and the preset reference output voltage; wherein the verifying verifies whether a value of the output voltage is less than a value that is obtained by subtracting a preset error from a value of the preset reference output voltage; and the controlling controls the switch of the synchronous rectification circuit to be in an OFF state when the value of the output voltage is verified in the verifying to be less than the value that is obtained by subtracting the preset error from the value of the preset reference output voltage.
