Method for operating a resonant DC-DC converter of a charger
First Claim
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1. A DC-DC converter comprising:
- a first primary side transformation coil and at least one second primary side transformation coil that are arranged in series one behind another;
a secondary side transformation coil arranged alongside each of the first and at least one second primary side transformation coils;
a respective semiconductor switch being connected in parallel with the at least one second primary side transformation coil, the at least one second primary side transformation coil being switched on or off by the semiconductor switch;
a computing unit configured to alter the state of the respective semiconductor switch to alter a ratio of a number of turns of the first and at least one second primary side transformation coils to a number of turns of the secondary side transformation coil depending on a present value of at least one operating parameter of the charger to optimize and efficiency of the charger.
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Abstract
A method is provided for operating a DC-DC converter (22) of a charger (20). The DC-DC converter has on a primary side a first transformation coil (28) and at least one second transformation coil (30) that are arranged in series one behind another and also alongside a secondary side transformation coil (48). A respective semiconductor switch is connected in parallel with the at least one second primary side transformation coil (30). The at least one second primary side transformation coil (30) is switched either on or off by the semiconductor switch depending on a present value of at least one operating parameter of the charger (20).
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Citations
8 Claims
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1. A DC-DC converter comprising:
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a first primary side transformation coil and at least one second primary side transformation coil that are arranged in series one behind another; a secondary side transformation coil arranged alongside each of the first and at least one second primary side transformation coils; a respective semiconductor switch being connected in parallel with the at least one second primary side transformation coil, the at least one second primary side transformation coil being switched on or off by the semiconductor switch; a computing unit configured to alter the state of the respective semiconductor switch to alter a ratio of a number of turns of the first and at least one second primary side transformation coils to a number of turns of the secondary side transformation coil depending on a present value of at least one operating parameter of the charger to optimize and efficiency of the charger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification