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公开(公告)号：US20160094210A1
公开(公告)日：2016-03-31
申请号：US14797571
申请日：2015-07-13
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Vanni POLETTO , Patrizia MILAZZO , Sergio LECCE
IPC: H03K5/04 , H03K19/003 , H03K17/041
CPC classification number: H03K5/04 , H03K17/04106 , H03K17/04206 , H03K17/166 , H03K19/00323 , H03K19/0175
Abstract: A driver device is for switching on and off a transistor for supplying a load by driving a control electrode of the transistor. The driver device includes a first terminal connected to the control electrode of the transistor, a second terminal connected between the transistor and the load, and a current-discharge path coupled to the first terminal. The current-discharge path includes a diode and is activated when the transistor is switched off. The diode becomes non-conductive to interrupt the current-discharge path when the voltage on the second terminal reaches a threshold value.
Abstract translation: 驱动器件用于通过驱动晶体管的控制电极来接通和关断用于提供负载的晶体管。 驱动器件包括连接到晶体管的控制电极的第一端子，连接在晶体管和负载之间的第二端子以及耦合到第一端子的电流 - 放电路径。 电流放电路径包括二极管，并且当晶体管关断时被激活。 当第二端子上的电压达到阈值时，二极管变得不导通以中断电流 - 放电路径。
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公开(公告)号：US20180283570A1
公开(公告)日：2018-10-04
申请号：US15793464
申请日：2017-10-25
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Sergio LECCE
Abstract: A circuit for controlling current in an inductive load is provided. The circuit includes a driver circuit for driving a load current in the inductive load. The driver circuit includes a switch, which is switched on to increase the load current and a recirculation diode, which re-circulates the load current when the switch is off. The circuit includes a control module that generates a control signal to switch on and off the switch. The control module includes a PWM current controller comprising a negative feedback closed loop implementing at least a proportional control and an integral control. The PWM current controller receives a target current value and an estimated current flowing in the load during a measurement PWM cycle. The PWM current controller generates the control signal for a control input of the switch based on an error between the target current and the estimated current.
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公开(公告)号：US20210385059A1
公开(公告)日：2021-12-09
申请号：US17335336
申请日：2021-06-01
Applicant: STMicroelectronics S.r.l.
Inventor： Carmelo BURGIO , Walter GIRARDI , Sergio LECCE
Abstract: An input signal arranged in frames is received. The frames include a cyclic redundancy check (CRC) field including a number of bits having bit edges. A timing signal is generated to include adjustable duration waveforms at one of a first duration value and a second duration value. A CRC check determines the occurrence, over the duration, of a number of waveforms of the timing signal having their duration adjusted to one of the first duration value and the second duration value which corresponds to the number of bits. A check signal is produced having a pass/fail value. If pass, the duration of the waveforms in the timing signal is maintained adjusted to the one of the first duration value and the second duration value. If fail, the duration of the waveforms in the timing signal is re-adjusted to the other of the first duration value and the second duration value.
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