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公开(公告)号：JPH11198373A
公开(公告)日：1999-07-27
申请号：JP19480198
申请日：1998-07-09
Applicant: ST MICROELECTRONICS SRL
Inventor： PIDUTTI ALBINO , SCURATI MARIO
Abstract: PROBLEM TO BE SOLVED: To incorporate a power supply means controlled to supply an energy of a variable amount to a reactance load with a low power consumption amount. SOLUTION: Reactance elements Lr, Cr are connected to a load Cl through a controllable electronic switch T3 to form a resonance circuit together with the load Cl when the switch T3 is closed. Further, the driving system for a reactance load comprises a means 10 for energizing the switch T3 , an operational amplifier 3 of a power supply means controlled according to a predetermined program for specifying an energy supply to the load Cl, and a controller 14 connected to regulate an operation of the means 10.
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2.发明专利
公开(公告)号：JPH06174762A
公开(公告)日：1994-06-24
申请号：JP17551393
申请日：1993-07-15
Applicant: ST MICROELECTRONICS SRL
Inventor： BORGATO PIERANDREA , DIAZZI CLAUDIO , PIDUTTI ALBINO
IPC: G01R19/12 , G01R19/165 , H02M3/156
Abstract: PURPOSE: To obtain a detection circuit where the output terminal requires no additional pin for producing an external signal by providing a sensor for detecting a current flowing through a feedback branch and proportional to the fluctuation of output voltage at the output terminal. CONSTITUTION: A detection circuit 39 in the apparatus comprises a current sensor 40 disposed between a pin 29 and the output terminal 41 of an error amplifier 27 and generating a current signal KDI proportional to the current DI of a compensation capacitor 28 at an output terminal 42. When the output voltage Vo fluctuates, e.g. it increases by DVo for example, it is detected only by a resistor 16. Consequently, the current increases by an amount DI equal to DVo /R2 and the current DI flows through the compensation capacitor 28 and detected by the current sensor 40. The current is proportional to the instantaneous fluctuation of the output voltage Vo . A detection circuit 39 is integrated conveniently on a control circuit 8 which does not require any additional pin on the package.
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公开(公告)号：JPH04270513A
公开(公告)日：1992-09-25
申请号：JP18241991
申请日：1991-07-23
Applicant: ST MICROELECTRONICS SRL
Inventor： VIO FABIO , DIAZZI CLAUDIO , PIDUTTI ALBINO , MARTIGNONI FABRIZIO
IPC: H03K17/567 , H03K3/356 , H03K17/687 , H03K19/0185
Abstract: PURPOSE: To provide a circuit which drives the floating circuit, in response to a binary-coded decimal signal and is small in power consumption in a stationary state. CONSTITUTION: This circuit has two DMOS transistors(TR) 10 and 12 which are actuated with a digital signal IN and driven in opposite phase by respective gates. The two DMOS TRs 10 and 12 are biased by current mirrors 16 and 18, which reflect a reference current IBIAS and auxiliary circuits 34 to 44 which impress other current pulses during switching. Two DMOS TRs 20 and 22 operate as loads with respect to the two DMOS TRs 10 and 12. Since two Zener diodes 24 and 26 can be used to limit the voltages between the gates and sources of the MOS TRs 20 and 22. A drive output part of the floating circuit may be a drain of one of the DMOS TRs.
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公开(公告)号：WO2004010569A8
公开(公告)日：2005-07-21
申请号：PCT/IT0200478
申请日：2002-07-19
Applicant: ST MICROELECTRONICS SRL , FAGNANI MAURO , PIDUTTI ALBINO , ADRAGNA CLAUDIO
Inventor： FAGNANI MAURO , PIDUTTI ALBINO , ADRAGNA CLAUDIO
CPC classification number: H02M1/36 , H02M3/335 , H02M2001/0006
Abstract: The present invention refers to a starting circuit for switching power supplies (SMPS), to a switching power supply comprising a starting circuit )and an integrated circuit of a switching power supply. In an embodiment thereof the starting circuit (13) for switching power supplies having a first supply voltage (Vin) coming from a first terminal and a second supply voltage (Vcc) coming from a second terminal and a third tenninal (30); said starting circuit comprises: a first current path between said first terminal and said third terminal (30); a second current path between said first tenninal and said second terminal; a third current path between said second terminal and said third terminal (30); a two-way voltage regulator (M3, Dz2, R5, R6) placed along said second current path.
Abstract translation: 本发明涉及用于切换电源（SMPS）的起动电路，包括起动电路的开关电源）和开关电源的集成电路。 在其实施例中，用于切换来自第一端子的第一电源电压（Vin）和来自第二端子和第三端子（30）的第二电源电压（Vcc）的电源的启动电路（13）。 所述启动电路包括：在所述第一端子和所述第三端子之间的第一电流路径; 所述第一终端和所述第二终端之间的第二电流路径; 所述第二端子和所述第三端子之间的第三电流通路; 沿着所述第二电流路径放置的双向电压调节器（M3，Dz2，R5，R6）。
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公开(公告)号：DE60029747D1
公开(公告)日：2006-09-14
申请号：DE60029747
申请日：2000-03-31
Applicant: ST MICROELECTRONICS SRL
Inventor： GENOVA ANGELO , PIDUTTI ALBINO , NOVELLI ALDO
Abstract: The present invention relates to a current (I) control method for drive systems of multi-phase brushless motors, in particular at phase switching, wherein the motor coils (1,2,3) led to a common node (D) are driven by applying a respective drive voltage to the free end (A,B,C) of each coil (1,2,3) via corresponding power stages (4,5,6). The method comprises switching the current flow from one phase (1-2) to the next (1-3) in the direction of rotation of the motor at the phase switch, thereby forcing the unaffected one (2) of said coils by the phase switch into a state of high impedance. Advantageously, the decreasing rate of the current (I2) in the coil (2) unaffected by the phase switch can be twice as high as the decreasing rate of the current (I1) in the phase being switched from.
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Patent Agency Ranking
公开(公告)号：DE69832258T2
公开(公告)日：2006-08-03
申请号：DE69832258
申请日：1998-02-24
Applicant: ST MICROELECTRONICS SRL
Inventor： LEGNANI MARCO ALESSANDRO , PIDUTTI ALBINO
Abstract: The protection structure (1) has a plurality of protection regions (2) extending along closed lines arranged inside each other. Each intermediate protection region (2) is tangent to two different adjacent protection regions (2), at different areas (3), such as to form a connection in series with them. The protection structure (1) can be of resistive material, such as to form a series of resistors, or it can include doped portions alternately of P- and N-type, such as to form a plurality of anti-series arranged diodes. The structure can be made of polycrystalline silicon extending on the substrate surface, or can be integrated (implanted or diffused) inside the substrate.
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公开(公告)号：DE69719332D1
公开(公告)日：2003-04-03
申请号：DE69719332
申请日：1997-11-28
Applicant: ST MICROELECTRONICS SRL
Inventor： PIDUTTI ALBINO , SCURATI MARIO
Abstract: The system comprises means (3, G1, G2, 12) for the controlled supply of the reactive load (Cl), for supplying variable quantities of energy to the load in a predetermined manner, reactive components (Cr, Lr) which are connected to the load (Cl) by means of a controllable electronic switch (T3) and which form a resonant circuit with the load when the electronic switch (T3) is closed, means (10) for activating the electronic switch (T3), and a control unit (14) which coordinates the operation of the controlled supply means and of the activation means in accordance with a predetermined program. The system enables the load to be driven with a particularly low power dissipated.
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公开(公告)号：DE60225603D1
公开(公告)日：2008-04-24
申请号：DE60225603
申请日：2002-07-19
Applicant: ST MICROELECTRONICS SRL
Inventor： FAGNANI MAURO , PIDUTTI ALBINO , ADRAGNA CLAUDIO
Abstract: A bootstrap circuit for switching power supplies (SMPS), a switching power supply including a bootstrap circuit, and an integrated circuit of a switching power supply, are provided. The bootstrap circuit ( 13 ) for switching power supplies includes a first supply voltage (Vin) coming from a first terminal and a second supply voltage (Vcc) coming from a second terminal and a third terminal ( 30 ). The bootstrap circuit includes: a first current path between the first terminal and the third terminal ( 30 ); a second current path between the first terminal and the second terminal; a third current path between the second terminal and the third terminal ( 30 ); and a two-way voltage regulator (M 3 , Dz 2 , R 5 , R 6 ) placed along the second current path.
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公开(公告)号：DE69736327D1
公开(公告)日：2006-08-24
申请号：DE69736327
申请日：1997-11-10
Applicant: ST MICROELECTRONICS SRL
Inventor： PIDUTTI ALBINO , LEGNANI MARCO ALESSANDRO
Abstract: The use of a nonlinear multiplier in the control loop of DC-DC converters, SMPS (Switching Mode Power Supply) systems and in PFC (Power Factor Correction) systems, and in particular wherein the constant K of the multiplier circuit vary in function of the amplitude of the error signal fed to an input of the multiplier circuit, greatly enhances stability and immunity to noise, especially that coming from the supply rails.
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公开(公告)号：AU2002326145A1
公开(公告)日：2004-02-09
申请号：AU2002326145
申请日：2002-07-19
Applicant: ST MICROELECTRONICS SRL
Inventor： FAGNANI MAURO , PIDUTTI ALBINO , ADRAGNA CLAUDIO
Abstract: A bootstrap circuit for switching power supplies (SMPS), a switching power supply including a bootstrap circuit, and an integrated circuit of a switching power supply, are provided. The bootstrap circuit ( 13 ) for switching power supplies includes a first supply voltage (Vin) coming from a first terminal and a second supply voltage (Vcc) coming from a second terminal and a third terminal ( 30 ). The bootstrap circuit includes: a first current path between the first terminal and the third terminal ( 30 ); a second current path between the first terminal and the second terminal; a third current path between the second terminal and the third terminal ( 30 ); and a two-way voltage regulator (M 3 , Dz 2 , R 5 , R 6 ) placed along the second current path.
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