公开(公告)号：DE60120921T2

公开(公告)日：2007-02-01

申请号：DE60120921

申请日：2001-04-27

Applicant: ST MICROELECTRONICS SRL

Inventor： SPINOLA DURANTE GUIDO ,  ZERBINI SARAH ,  GARDELLA SIMONE

IPC: G01C19/56

公开(公告)号：DE60120921D1

公开(公告)日：2006-08-03

申请号：DE60120921

申请日：2001-04-27

Applicant: ST MICROELECTRONICS SRL

Inventor： SPINOLA DURANTE GUIDO ,  ZERBINI SARAH ,  GARDELLA SIMONE

IPC: G01C19/56

公开(公告)号：ITVA20010002A1

公开(公告)日：2002-07-23

申请号：ITVA20010002

申请日：2001-01-23

Applicant: ST MICROELECTRONICS SRL

Inventor： PEDUTO VITTORIO ,  GARDELLA SIMONE

IPC: H02M3/158

Abstract: A method of driving an inductive load connected to an output of a power stage includes comparing a signal representative of an instantaneous value of current flowing through the inductive load with upper and lower thresholds during a switching cycle. The method also includes alternately performing a magnetization phase during which current is forced through the inductive load, and a demagnetization phase during which a load inductance of the inductive load discharges through at least one of a slow recirculation discharge current path and a fast recirculation discharge current path. Switching is performed between the slow and fast recirculation discharge current paths during each switching cycle as a function of the comparison for reducing a ripple on an output signal from the power stage.