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1. 发明公开

EP4300766A1 BIDIRECTIONAL DC/DC CONVERTER 审中-公开
公开(公告)号：EP4300766A1
公开(公告)日：2024-01-03
申请号：EP23305969.0
申请日：2023-06-19
申请人： STMicroelectronics (Rousset) SAS , STMicroelectronics S.r.l.
发明人： POLETTO, Vanni , PAVLIN, Antoine
IPC分类号： H02J7/34 , B60L58/20 , H02M3/158 , B60R16/04
摘要： In an embodiment, a phase circuit (300) includes: a bidirectional output stage (321) configured to be coupled between a first battery (104) and a second battery (106); a memory (310) configured to store a number of active phases, and an identifier; and a synchronization circuit (306) configured to receive a first clock signal (S PWM_CLK ) and determine a start time of a switching cycle of the bidirectional output stage based on the number of active phases, the identifier, and the first clock signal (S PWM_CLK ), where the phase circuit is configured to control the timing of the switching of the bidirectional output stage based on the start time.

2. 发明公开

EP3477698A1 CIRCUIT INTÉGRÉ EN BOÎTIER QFN 有权
公开(公告)号：EP3477698A1
公开(公告)日：2019-05-01
申请号：EP18202154.3
申请日：2018-10-23
申请人： STMicroelectronics S.r.l. , STMICROELECTRONICS (ROUSSET) SAS
发明人： VERSIGLIA, Felice , PAVLIN, Antoine , TAGLIAPIETRA, Claudio
IPC分类号： H01L23/495 , H01L23/31
摘要： L'invention concerne un circuit électronique (1) comportant une puce semiconductrice (5) ayant une épaisseur (e) inférieure à 160 µm et un boîtier (2) à contacts affleurant (3, 4) dans lequel est encapsulée la puce.

3. 发明公开

EP3937318A1 PULSE GENERATOR CIRCUIT, RELATED SYSTEM AND METHOD 审中-实审
公开(公告)号：EP3937318A1
公开(公告)日：2022-01-12
申请号：EP21305838.1
申请日：2021-06-18
申请人： STMicroelectronics S.r.l. , STMicroelectronics (Rousset) SAS
发明人： LETOR, Romeo , POLETTO, Vanni , PAVLIN, Antoine , LECCI, Nadia , RUSSO, Alfio
IPC分类号： H01S5/042 , G01S17/88 , H01S5/062
摘要： A pulse generator circuit, for driving a laser diode (LD) in a LIDAR system, for instance, comprises a first node (10) and a second node (12) to apply a pulse signal to an electrical load (LD) as well as a first electronic switch (HSD) coupled between the first node (10) and the second node (12) and a second electronic switch (LSD) coupled between the second node (12) and a reference node (GND). An LC resonant circuit (Lr, Cr) comprising an inductance (Lr) and a capacitance (Cr) is coupled between the first node (10) and the reference node (GND) along with charge circuitry (100) coupled between a supply node (VCC) and an intermediate node (16) in the LC resonant circuit (Lr, Cr).
Drive circuitry (14, 141, 142) of the electronic switches (HSD, LSD) repeats during a sequence of switching cycles charge time intervals, wherein the capacitance (Cr) in the LC resonant circuit (Lr, Cr) is charged via the charge circuit (100), and pulse generation time intervals, wherein a pulsed current is provided to the load (LD) via the first node (10) and the second node (12). The charge and pulse generation time intervals are interleaved with oscillation time intervals where the LC resonant circuit (Lr, Cr) oscillates at a resonance frequency.
The charge circuitry comprises a further inductance (L Charge) in a current flow line between the supply node (VCC) and the intermediate node (16) in the LC resonant circuit (Lr, Cr).

4. 发明公开

EP4027165A1 ELECTRONIC MODULE FOR GENERATING LIGHT PULSES FOR LIDAR APPLICATIONS AND METHOD FOR MANUFACTURING THE ELECTRONIC MODULE 审中-实审
公开(公告)号：EP4027165A1
公开(公告)日：2022-07-13
申请号：EP22305004.8
申请日：2022-01-04
申请人： STMicroelectronics S.r.l. , STMicroelectronics (Rousset) SAS , STMicroelectronics Application GmbH
发明人： LETOR, Romeo , TIZIANI, Roberto , RUSSO, Alfio , PAVLIN, Antoine , LECCI, Nadia , GAERTNER, Manuel
IPC分类号： G01S7/484 , H01L23/00
摘要： An electronic module (10) for generating light pulses, comprising: an electronic card or interposer (2); a LASER-diode (5) lighting module (4); and a LASER-diode driver module (6). The interposer has an edge recess in which the lighting module is completely inserted. The driver module is arranged on top of the interposer and the lighting module. The electrical connections for driving the LASER diodes are obtained without resorting to wire bonding in order to reduce the parasitic inductances.

5. 发明公开

EP3855585A1 METHOD OF OPERATING A PULSE GENERATOR CIRCUIT RELATED PULSE GENERATOR CIRCUIT AND LASER SYSTEM 有权
公开(公告)号：EP3855585A1
公开(公告)日：2021-07-28
申请号：EP20306464.7
申请日：2020-11-30
申请人： STMicroelectronics S.r.l. , STMicroelectronics (Rousset) SAS
发明人： LETOR, Romeo , PAVLIN, Antoine , RUSSO, Alfio , LECCI, Nadia
IPC分类号： H01S5/042 , H01S5/0683 , H01S5/026 , H01S5/062
摘要： A pulse generator circuit (20a) configured to apply a current pulse to two output terminals (204, 206) . The pulse generator circuit (20a) comprises an LC resonant circuit (Lr, Cr) comprising an inductance (Lr) and a capacitance (Cr) connected in series between a first node (210) and a negative input terminal (202). The pulse generator circuit (20a) comprises moreover a charge circuit (220) configured to charge the capacitance (Cr) via a supply voltage ( Vcc ), a first electronic switch (S1) configured to selectively short-circuit the two output terminals (204, 206), a second electronic switch (S2) configured to selectively connect the two output terminals (204, 206) in parallel with the LC resonant circuit (Lr, Cr) and a control circuit (208a) configured to drive the first (S1) and the second (S2) electronic switch. Specifically, the control circuit (208a) repeats the following steps during each switching cycle:
- for a first time-interval ( T 1 ) close the first electronic switch (S1) and open the second electronic switch (S2), wherein the capacitance (Cr) is charged via the charge circuit (220);
- for a following second time-interval ( T 2 ) close both the first (S1) and the second (S2) electronic switch, wherein the LC resonant circuit (Lr, Cr) oscillates with a given resonant period (Tr);
- for a following third time-interval ( T 3 , T ON ) open the first electronic switch (S1) and close the second electronic switch (S2), wherein the LC resonant circuit (Lr, Cr) provides a current ( i cr ) to the two output terminals (204, 206); and
- for a following fourth time-interval ( T 2 ) close both the first (S1) and the second (S2) electronic switch, wherein the LC resonant circuit (Lr, Cr) oscillates with the given resonant period (Tr).

6. 发明公开

EP3937317A1 PULSE GENERATOR CIRCUIT, RELATED SYSTEM AND METHOD 有权
公开(公告)号：EP3937317A1
公开(公告)日：2022-01-12
申请号：EP21305823.3
申请日：2021-06-16
申请人： STMicroelectronics S.r.l. , STMicroelectronics (Rousset) SAS
发明人： LETOR, Romeo , POLETTO, Vanni , PAVLIN, Antoine , RUSSO, Alfio , LECCI, Nadia
IPC分类号： H01S5/042 , H01S5/062 , H03K17/56 , G01S17/88
摘要： A pulse generator circuit, for driving an array of laser diodes (LD_1, ..., LD_n) in a LIDAR system, for instance, comprises an LC resonant circuit (Lr, Cr) coupled between a first node (12) and a reference node (GND) as well as charge circuitry (16) configured to charge the capacitance (Cr) in the LC resonant circuit (Lr, Cr). A first electronic switch (S1) is coupled between the first node (12) and the reference node (GND), and one or more second electronic switches (S2_1, ..., S2_n) are coupled between the first node (12) and respective drive nodes (12 1 , ..., 12 n ) in turn configured to be coupled to respective electrical loads (LD_1, ..., LD_n).
The circuit comprises drive circuitry (18, 182_1, ..., 182_n; 201, 202, 203) configured to repeat pulse generation cycles comprising:
closing the first electronic switch (S1), to enable the LC resonant circuit (Lr, Cr) to oscillate with an increasing current flowing in the inductance (Lr) therein,
in response to the current flowing in the inductance (Lr) reaching a threshold value, opening the first electronic switch (S1) wherein, as a result of one second electronic switch (S2_1, ..., S2_n) being closed for a respective pulse duration time (Ton_S2_1, ..., Ton_S2_n), the current in the inductance (Lr) is commutated towards the aforesaid second electronic switch (S2_1, ..., S2_n) and the respective drive node (12 1 , ..., 12 n ),
opening the at least one second electronic switch (S2_1, ..., S2_n) at the expiration of said respective pulse duration time (Ton_S2_1, ..., Ton_S2_n).

7. 发明公开

EP4358125A1 TRANSISTOR DE PUISSANCE 审中-公开
公开(公告)号：EP4358125A1
公开(公告)日：2024-04-24
申请号：EP23201333.4
申请日：2023-10-03
申请人： STMicroelectronics (Rousset) SAS
发明人： BOURGUINE, Loic , ESTEVE, Lionel , PAVLIN, Antoine
IPC分类号： H01L21/8252 , H01L27/06 , H01L27/085 , H01L29/20 , H01L29/778 , H02M1/08 , H03K17/082
CPC分类号： H01L21/8252 , H01L27/0605 , H01L27/085 , H01L29/7786 , H01L29/2003 , H02M1/08 , H03K2017/080620130101 , H03K17/0822 , H01L29/41766 , H01L29/42316 , H01L29/0657 , H01L29/41758 , H01L27/0207 , H02M3/33523 , H02M3/155
摘要： La présente description concerne un dispositif électronique (400) formé dans et sur un substrat semiconducteur monolithique ayant une face recouverte d'une couche de Nitrure de Gallium, comprenant au moins un transistor de puissance (401) HEMT de type e-mode adapté à recevoir une tension maximale de 650 V entre son drain et sa source, et un circuit analogique de commande (450) dudit transistor de puissance (401).

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