29-09-2016 дата публикации
Номер: US20160285362A1
Принадлежит:
A DC/DC converter including: a plurality of conversion cells connected in parallel and/or in series, each cell including at least one switch and at least one passive power storage element; and a diagnosis circuit capable of individually testing the cells to detect possible defective cells, of deactivating the defective cells, and of storing the location of the defective cells. 1. A DC/DC converter comprising:a plurality of conversion cells connected in parallel and/or in series, each cell comprising at least one switch and at least one passive power storage element;a diagnosis circuit configured to individually test the cells to detect possible defective cells, to deactivate the defective cells, and to store the location of the defective cells; anda general control circuit capable, when cells are deactivated by the diagnosis circuit, of reconfiguring control sequences applied to the switches of the cells which are still active.2. The converter of claim 1 , wherein claim 1 , to test a cell claim 1 , the diagnosis circuit measures the cell output voltage and compares it with an expected output voltage.3. The converter of claim 1 , wherein claim 1 , to test a cell claim 1 , the diagnosis circuit measures the conversion efficiency of the cell and compares it with an expected conversion efficiency.4. The converter of claim 1 , wherein claim 1 , to test a cell claim 1 , the diagnosis circuit measures the output oscillation rate of the cell and compares it with an expected output oscillation rate.5. The converter of claim 1 , wherein each cell comprises an internal circuit for controlling said at least one switch of the cell claim 1 , this circuit being rated by a clock signal provided by the circuit for generally controlling the converter.6. The converter of claim 5 , wherein the clock signals applied to the internal control circuits of the different cells are phase-shifted.7. The converter of claim 6 , wherein the general control circuit is configured claim 6 , when ...
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