公开(公告)号：DE69922495D1

公开(公告)日：2005-01-13

申请号：DE69922495

申请日：1999-06-16

Applicant: ST MICROELECTRONICS SRL

Inventor： BOTTI EDOARDO ,  CASSANI FABRIZIO ,  CRESPI LUIGI

IPC: H02H9/00 ,  H02H11/00 ,  H02M3/155 ,  H02M1/14

公开(公告)号：ITMI990257A1

公开(公告)日：2000-08-10

申请号：ITMI990257

申请日：1999-02-10

Applicant: ST MICROELECTRONICS SRL

Inventor： BOTTI EDOARDO ,  CASSANI FABRIZIO

IPC: H02J7/00 ,  H02M3/155

Abstract: The step-up circuit has first and second input terminals for connection to a battery, first and second output terminals for connection to an electronic device to be fed by a DC/DC converter having a first and second input terminals connected respectively to the first and second input terminals of the step-up circuit. The second output terminal of the step-up circuit is connected to the second input terminal of the step-up circuit, one output terminal of the converter is connected to the first input terminal of the step-up circuit and the other output terminal of the converter is linked to the first output terminal of the step-up circuit, therefore, when operating, the output of the step-up circuit is the sum of the power of the battery and of the output of the converter. The step-up circuit is smaller, supplies the same output, is cheaper to produce and offers improved performance over the prior art.

公开(公告)号：DE69922495T2

公开(公告)日：2005-11-03

申请号：DE69922495

申请日：1999-06-16

Applicant: ST MICROELECTRONICS SRL

Inventor： BOTTI EDOARDO ,  CASSANI FABRIZIO ,  CRESPI LUIGI

IPC: H02H9/00 ,  H02H11/00 ,  H02M3/155 ,  H02M1/14

公开(公告)号：IT1308597B1

公开(公告)日：2002-01-08

申请号：ITMI990257

申请日：1999-02-10

Applicant: ST MICROELECTRONICS SRL

Inventor： BOTTI EDOARDO ,  CASSANI FABRIZIO

IPC: H02J7/00 ,  H02M3/155

Abstract: The step-up circuit has first and second input terminals for connection to a battery, first and second output terminals for connection to an electronic device to be fed by a DC/DC converter having a first and second input terminals connected respectively to the first and second input terminals of the step-up circuit. The second output terminal of the step-up circuit is connected to the second input terminal of the step-up circuit, one output terminal of the converter is connected to the first input terminal of the step-up circuit and the other output terminal of the converter is linked to the first output terminal of the step-up circuit, therefore, when operating, the output of the step-up circuit is the sum of the power of the battery and of the output of the converter. The step-up circuit is smaller, supplies the same output, is cheaper to produce and offers improved performance over the prior art.