CIRCUIT CONFIGURATION HAVING A RESONANT CONVERTER, AND METHOD FOR OPERATING A RESONANT CONVERTER
First Claim
Patent Images
1. A circuit configuration, comprising:
- a primary winding of a transformer;
a resonant converter feeding energy into said primary winding of said transformer;
a control circuit for controlling said resonant converter and having a plurality of modules, said plurality of modules including;
a frequency generator controllable with a variable frequency;
a short circuit monitoring unit for protecting components of said resonant converter; and
an open circuit detection unit, said open circuit detection unit shutting down said resonant converter if a secondary side interacting with said primary winding of said transformer is open circuit, without feedback from the secondary side.
1 Assignment
0 Petitions
Accused Products
Abstract
A circuit configuration contains a resonant converter feeding energy into a primary winding of a transformer, a control circuit for controlling the resonant converter and a plurality of modules. The modules include a frequency generator controllable with variable frequency, a short circuit monitoring unit configured to protect components of the resonant converter, and an open circuit detection unit. The open circuit detection unit is configured to shut down the resonant converter if a secondary side interacting with the primary winding of the transformer is open circuit, without having information from the secondary side.
-
Citations
21 Claims
-
1. A circuit configuration, comprising:
-
a primary winding of a transformer; a resonant converter feeding energy into said primary winding of said transformer; a control circuit for controlling said resonant converter and having a plurality of modules, said plurality of modules including; a frequency generator controllable with a variable frequency; a short circuit monitoring unit for protecting components of said resonant converter; and an open circuit detection unit, said open circuit detection unit shutting down said resonant converter if a secondary side interacting with said primary winding of said transformer is open circuit, without feedback from the secondary side. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. An operational method, which comprises the steps of:
-
providing a circuit configuration containing a primary winding of a transformer, a resonant converter feeding energy into the primary winding of the transformer, and a control circuit for controlling the resonant converter and having a plurality of modules, the plurality of modules including a frequency generator controllable with a variable frequency, a short circuit monitoring unit for protecting components of the resonant converter, and an open circuit detection unit, the open circuit detection unit shutting down the resonant converter if a secondary side interacting with the primary winding of the transformer is open circuit, without feedback from the secondary side; and using the circuit configuration in a wireless battery charging system of an electric vehicle. - View Dependent Claims (13)
-
-
14. A method for operating a resonant converter which feeds energy into a primary winding of a transformer, which comprises the steps of:
-
operating the resonant converter in an above-resonance region; controlling the resonant converter by means of a controller; and monitoring a secondary-side open circuit condition of the transformer on the primary side asynchronously with respect to the controller, wherein controller-independent shutdown of the resonant converter takes place if an open circuit condition is detected. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
-
Specification