公开(公告)号：DE69131532T2

公开(公告)日：2000-04-06

申请号：DE69131532

申请日：1991-06-24

Applicant: ST MICROELECTRONICS SRL

Inventor： VIO FABIO ,  DIAZZI CLAUDIO ,  PIDUTTI ALBINO ,  MARTIGNONI FABRIZIO

IPC: H03K17/567 ,  H03K3/356 ,  H03K17/687 ,  H03K19/0185 ,  H03K17/06

Abstract: A driving circuit for driving a floating circuit (28) responsive to a digital signal (IN) includes two DMOS transistors (10, 12) which are driven in opposite phase on their respective gates starting from the digital signal. The two DMOS transistors are biased by a current source which is formed by a current mirror (16, 18), which mirrors a reference current (IBIAS), and by an auxiliary circuit (34-44) for injecting an additional current pulse during switching. Two MOS transistors (20, 22) serve as the respective load for the two DMOS transistors. The MOS transistors can be P-channel transistors, in which event the gate of each MOS transistor (20, 22) can be connected to the drain of the other MOS transistor. Two Zener diodes (24, 26) can be employed to limit the voltage between the gate and the source of the respective MOS transistor. The driving output of the floating circuit (28) can be the drain of one of the DMOS transistors.

公开(公告)号：DE69222762T2

公开(公告)日：1998-02-12

申请号：DE69222762

申请日：1992-07-30

Applicant: ST MICROELECTRONICS SRL

Inventor： BORGATO PIERANDREA ,  DIAZZI CLAUDIO ,  PIDUTTI ALBINO

IPC: G01R19/12 ,  G01R19/165 ,  H02M3/156 ,  H02M1/14

Abstract: A circuit (39) for detecting voltage variations in relation to a set value, for devices (1), more specifically a power supply circuit, comprising an error amplifier (27) fed back by a compensating capacitor (28) which, under steady state operating conditions, is not supplied with current, and, in the presence of transient output voltage (Vo) of the device (1), is supplied with current (DI) proportional to the variation in voltage; the circuit (39) comprising a current sensor (40) connected to the compensating capacitor (28) for detecting the current (DI) through the same; and the output signal of the sensor (40) preferably being supplied to a circuit (43, 44) for limiting the variation in output voltage which, in the event the voltage variation exceeds a given threshold value (VR1), activates a control stage (31) connected to the output of the device.

公开(公告)号：IT1318880B1

公开(公告)日：2003-09-10

申请号：ITMI20002043

申请日：2000-09-19

Applicant: ST MICROELECTRONICS SRL

Inventor： BATTAGLIN LUCA ,  GALLINA PIETRO ,  SABA GIANCARLO ,  ZINCO GIANCARLO ,  DIAZZI CLAUDIO ,  PEDUTO VITTORIO

IPC: B41J2/045 ,  B06B1/06 ,  B41J2/055 ,  H01L41/04 ,  H01L41/09 ,  H02N2/06

公开(公告)号：DE69528979D1

公开(公告)日：2003-01-09

申请号：DE69528979

申请日：1995-09-27

Applicant: ST MICROELECTRONICS SRL

Inventor： DIAZZI CLAUDIO ,  TARANTOLA MARIO ,  MARTIGNONI FABRIZIO

IPC: H05B41/295 ,  H05B41/00

公开(公告)号：DE69131532D1

公开(公告)日：1999-09-23

申请号：DE69131532

申请日：1991-06-24

Applicant: ST MICROELECTRONICS SRL

Inventor： VIO FABIO ,  DIAZZI CLAUDIO ,  PIDUTTI ALBINO ,  MARTIGNONI FABRIZIO

IPC: H03K17/567 ,  H03K3/356 ,  H03K17/687 ,  H03K19/0185 ,  H03K17/06

Abstract: A driving circuit for driving a floating circuit (28) responsive to a digital signal (IN) includes two DMOS transistors (10, 12) which are driven in opposite phase on their respective gates starting from the digital signal. The two DMOS transistors are biased by a current source which is formed by a current mirror (16, 18), which mirrors a reference current (IBIAS), and by an auxiliary circuit (34-44) for injecting an additional current pulse during switching. Two MOS transistors (20, 22) serve as the respective load for the two DMOS transistors. The MOS transistors can be P-channel transistors, in which event the gate of each MOS transistor (20, 22) can be connected to the drain of the other MOS transistor. Two Zener diodes (24, 26) can be employed to limit the voltage between the gate and the source of the respective MOS transistor. The driving output of the floating circuit (28) can be the drain of one of the DMOS transistors.