| 摘要 |
<p>A protection switching circuit includes a plurality of ferrite modules (102) arranged in a matrix, wherein the matrix includes a plurality of columns and a plurality of rows. The protection switching circuit further includes a primary control module (104) configured to select a specific ferrite module to be polarized and a redundant control module (106) configured to select a specific ferrite module to be polarized, wherein the redundant control module is used when the primary control module is not used. The protection switching circuit further includes a plurality of first switches (108, 110), wherein the plurality of first switches couples the plurality of columns of the matrix to a first and second charging circuit (109, 115). The protection switching circuit further includes a plurality of second switches (112, 114), wherein the plurality of second switches are organized into pairs, wherein each pair in the plurality of second switches couples a respective row of the matrix to a reference potential.</p> |
