公开(公告)号：JPH11215885A

公开(公告)日：1999-08-06

申请号：JP30054498

申请日：1998-10-22

Applicant: ST MICROELECTRONICS SRL

Inventor： SALINA ALBERTO ,  BRAMBILLA DONATELLA

IPC: H02P7/03 ,  H02P25/034 ,  H02P7/00

Abstract: PROBLEM TO BE SOLVED: To provide a current mode PWM(pulse width modulation) driving device whose precision does not deteriorate even if it is miniaturized. SOLUTION: A control loop becoming a close sate with the input node (A) of an error amplifier comparing the voltage of the input mode (A) balancing second current amplified by the output voltage V sense of a current sensing amplifier inputting first current amplified by control voltage Vdac via a first resistor R1 and the voltage drop quantity of a current detection resistor R3 via a second resistor R2 with reference voltage Vref is provided. In a current mode PWM driving device, voltage drop quantity is smaller than that by the current detection resistor R3. The current sense amplifier is constituted of an operational amplifier OP operating as a buffer or a charge transfer circuit by switches swA, swB, swC and sw1 controlled by a pair of complementary control signals ϕ1 and ϕ2 and a sample-and-hold output stage.

公开(公告)号：DE69704709D1

公开(公告)日：2001-06-07

申请号：DE69704709

申请日：1997-10-23

Applicant: ST MICROELECTRONICS SRL

Inventor： SALINA ALBERTO ,  BRAMBILLA DONATELLA

IPC: H02P7/03 ,  H02P25/034 ,  H02P7/00

公开(公告)号：ITMI20092322A1

公开(公告)日：2011-06-30

申请号：ITMI20092322

申请日：2009-12-29

Applicant: ST MICROELECTRONICS SRL

Inventor： BRAMBILLA DONATELLA ,  RIMONDI DANILO ,  SELVA CAROLINA ,  ZAPPA RITA

公开(公告)号：DE69704709T2

公开(公告)日：2001-08-09

申请号：DE69704709

申请日：1997-10-23

Applicant: ST MICROELECTRONICS SRL

Inventor： SALINA ALBERTO ,  BRAMBILLA DONATELLA

IPC: H02P7/03 ,  H02P25/034 ,  H02P7/00

公开(公告)号：IT1397216B1

公开(公告)日：2013-01-04

申请号：ITMI20092322

申请日：2009-12-29

Applicant: ST MICROELECTRONICS SRL

Inventor： BRAMBILLA DONATELLA ,  SELVA CAROLINA ,  ZAPPA RITA ,  RIMONDI DANILO