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1. 发明公开

EP4283874A1 PULSE WIDTH CLOCK TOPOLOGY STRUCTURE CIRCUIT 审中-实审
公开(公告)号：EP4283874A1
公开(公告)日：2023-11-29
申请号：EP22884924.6
申请日：2022-03-01
申请人： Shanghai Yijiaxin Integrated Circuit Design Co., Ltd.
发明人： JIANG, Xiaowei , BAO, Xinggang
IPC分类号： H03K7/08
摘要： A pulse width clock topology structure circuit, comprising a clock pulse width generation module and a clock topology delay module. The clock pulse width generation module connects an input clock and n stages of delay sub-modules in series; an output end of each stage of delay sub-module is connected to an input end of a selector; a certain required delay clock is selected by means of m+1 control signals of the selector, and an "AND" operation is performed on the required delay clock and an original input clock to generate different pulse width clock outputs as inputs of the clock topology delay module; and the clock topology delay module can generate a plurality of different delay clocks for different latches to use.

2. 发明授权

EP3825168B1 FOLDING CONTROL APPARATUS AND METHOD FOR VEHICLE SEATS 有权
公开(公告)号：EP3825168B1
公开(公告)日：2023-09-13
申请号：EP20203829.5
申请日：2020-10-26
发明人： LEE, Jin Woo
IPC分类号： B60N2/02 , B60N2/20 , G01D5/14 , H02P6/04 , H03K7/08 , H02P5/00 , H02P5/68

3. 发明公开

EP4203313A1 PULSE SIGNAL GENERATION CIRCUIT AND GENERATION METHOD, AND MEMORY 审中-实审
公开(公告)号：EP4203313A1
公开(公告)日：2023-06-28
申请号：EP21890680.8
申请日：2021-07-27
申请人： Changxin Memory Technologies, Inc.
发明人： GAO, Enpeng , SHANG, Weibing , JI, Kangling
IPC分类号： H03K7/08
摘要： Provided are a pulse signal generation circuit and generation method, and a memory. The pulse signal generation circuit comprises a clock frequency-division unit, a time delay circuit and a selection unit, wherein the clock frequency-division unit is configured to perform frequency division on a clock signal, so as to generate a clock frequency-division signal; the time delay circuit is configured to generate a time delay signal on the basis of the clock frequency-division signal; and the selection unit is configured to receive the clock frequency-division signal and the time delay signal at the same time, and perform selection according to a preset condition so as to generate a pulse signal. The effective level width of a pulse signal generated in the disclosure can be controlled on the basis of both multiplies of an external clock period and a delay time, and the period of the pulse signal is established using the period of a clock signal as the basis. Insofar as both the period and the width of a pulse signal can meet requirements, the effective level width of the pulse signal of the present disclosure is more controllable, such that a memory has good access performance.

5. 发明公开

EP4087116A1 GEAR CONTROL CIRCUIT FOR ALTERNATING CURRENT MOTOR, SYSTEM, SWITCH CONTROLLER, AND ELECTRONIC DEVICE 审中-实审
公开(公告)号：EP4087116A1
公开(公告)日：2022-11-09
申请号：EP21920115.9
申请日：2021-11-12
申请人： Beiang Air Tech Ltd.
发明人： RAN, Hongyu , ZHANG, Yan , LIU, Yigang , WEI, Mingming , LI, Hongqiang
IPC分类号： H02P25/16 , H03K7/08
摘要： The application provides a gear control circuit and system for an alternating current motor. The gear control circuit includes: a plurality of controllable switches; a detection unit, configured to detect switching statuses corresponding to the controllable switches; a gear input unit, configured to receive a target gear m inputted from outside; and a control unit, connected to the gear input unit and configured to obtain the target gear m. The application also provides a switch controller and an electronic device. The switch controller includes a signal modulation circuit, a signal follower circuit, a comparison circuit, and a switch control circuit. The switch controller may perform digital-to-analog conversion by using the signal modulation circuit, to modulate a first PWM signal being a digital signal into a second PWM signal being an analog signal, and then the signal follower circuit performs load amplification on the modulated second PWM signal.

6. 发明公开

EP4057574A1 MICROCONTROLLER CIRCUIT, CORRESPONDING DEVICE, SYSTEM AND METHOD OF OPERATION 审中-公开
公开(公告)号：EP4057574A1
公开(公告)日：2022-09-14
申请号：EP22157917.0
申请日：2022-02-22
申请人： STMicroelectronics Application GmbH , STMicroelectronics Design and Application s.r.o.
发明人： RENNIG, Fred , DVORAK, Vaclav
IPC分类号： H04L12/40 , H03K7/08
摘要： A circuit (106) comprises a first (24a) and a second (24b) memory, a processing unit (21) and a timer (22). The processing unit generates a sequence of bits encoding a CAN frame and processes the sequence of bits to detect a sequence of PWM periods. Each PWM period has a dominant portion and a recessive portion, and a total duration. The processing unit stores values of a first parameter of the PWM periods into the first memory, and values of a second parameter of the PWM periods into the second memory, wherein the first and second parameter define a shape of the PWM periods. The timer comprises a first register (220) which reads from the first memory a value of the first parameter of a current PWM period. The timer comprises a counter (221) which increases a count number and resets the count number as a function of the value of the first register. A value of the first parameter of a subsequent PWM period is stored into the first register as a function of the value of the first register. The timer comprises a second register (222) which reads from the second memory a value of the second parameter of the current PWM period, and compares the count number of the counter circuit to such value. The second register drives an output pin (230) to a dominant (resp., recessive) value as a function of said comparing the count number of the counter circuit to the value of the second register. A value of the second parameter of a subsequent PWM period is stored into the second register in response to the count number reaching the value stored in the first or second register.

7. 发明公开

EP4057089A1 OUTPUT MODULE 审中-实审
公开(公告)号：EP4057089A1
公开(公告)日：2022-09-14
申请号：EP22156848.8
申请日：2013-08-06
申请人： Bedrock Automation Platforms Inc.
发明人： CALVIN, James G. , ROOYAKKERS, Albert
IPC分类号： G05B19/418 , G05B19/05 , G05B19/042 , H03K7/08
摘要： A programmable discrete output module (200) comprising:
a current sensing circuit (208) for generating a current sensing signal indicating a current value;
a comparator communicatively coupled to the current sensing circuit, the comparator configured to compare the current value with an overcurrent reference, the comparator configured to output a comparison signal indicating whether an overcurrent event has occurred;
a switching element (202) configured to at least substantially prevent current flow within an electrical path when an overcurrent event has occurred; and
a controller communicatively coupled to the comparator and the switching element, the controller configured to control the switching element based on whether an overcurrent event has occurred.

8. 发明公开

EP4020815A1 PULSE WIDTH MODULATION DECODER CIRCUIT, CORRESPONDING DEVICE AND METHODS OF OPERATION 审中-公开
公开(公告)号：EP4020815A1
公开(公告)日：2022-06-29
申请号：EP21214636.9
申请日：2021-12-15
申请人： STMicroelectronics S.r.l.
发明人： Poletto, Vanni , Floriani, Ivan
IPC分类号： H03M1/50 , H03K7/08 , H03K9/08
摘要： A circuit (20A) for decoding a pulse width modulated signal ( PWM ) comprises an input node (200) configured to receive the pulse width modulated signal ( PWM ) , and an output node (202) configured to provide an output signal ( DATA ) switching between a first output value and a second output value as a function of the duty-cycle of the input pulse width modulated signal ( PWM ) . A current generating circuitry (22) is coupled between a supply voltage node ( V dd ) and a ground voltage node (GND) . The current generating circuitry is coupled to the input node (200) to receive the input pulse width modulated signal ( PWM ) and is coupled to an intermediate node (204) of the circuit to inject a current ( I H ) therein or to sink a current ( I L ) therefrom as a function of the value of the input pulse width modulated signal ( PWM ) . A capacitance (C) has a first terminal coupled to the intermediate node (204), and it is alternatively charged and discharged by the currents ( I H , I L ) generated by the current generating circuitry (22). A comparator circuit (24) is coupled between the intermediate node (204) and the output node (202). The comparator circuit (24) is configured to sense a voltage signal (Vc) at the intermediate node (204), compare the sensed voltage signal (Vc) to a reference voltage signal ( V ref ), and drive the output node (202) to the first output value or to the second output value as a function of the comparison, thereby generating the output signal ( DATA ) .

9. 发明公开

EP3982538A1 OSCILLATION UNIT, INDUCTION COOKING APPLIANCE AND METHOD FOR OPERATING AN OSCILLATION UNIT 审中-公开
公开(公告)号：EP3982538A1
公开(公告)日：2022-04-13
申请号：EP20201209.2
申请日：2020-10-12
申请人： ELECTROLUX APPLIANCES AKTIEBOLAG
发明人： VIROLI, Alex , NOSTRO, Massimo , ZANGOLI, Massimo , CORSI, Giacomo , URGESE, Emanuel , ANGELI, Fabio , MENGOZZI, Alan
IPC分类号： H03K7/08 , H05B6/06
摘要： The invention relates to an oscillation unit, in particular oscillation circuit (2), more in particular quasi-resonant oscillation circuit, for generating heating power for an induction cooking appliance (1), in particular for a domestic induction cooking appliance and/or an induction hob, the oscillation unit comprising a resonant tank (30), in particular a resonant circuit, for generating an electrical and/or magnetic field and/or heating power, the resonant tank (30) in particular connected to a first node (21),an, in particular single, switching element (35) connected to the resonant tank (30), in particular by the first node (21), and driven with switching signals for oscillating the resonant tank (30), a measuring unit (40) for measuring a first electrical parameter of the resonant tank (30), in particular for measuring a voltage (V CE ), more in particular for measuring a node voltage (V CE ) of the first node (21), and an estimating unit (45) for estimating a second electrical parameter, in particular an electrical power, of the resonant tank (30) based on the first electrical parameter, an induction cooking appliance and a method for operating an oscillation unit.

10. 发明公开

EP3896852A1 PWM GENERATION CIRCUIT, PROCESSING CIRCUIT AND CHIP 审中-公开
公开(公告)号：EP3896852A1
公开(公告)日：2021-10-20
申请号：EP19895838.1
申请日：2019-11-11
申请人： Amicro Semiconductor Co., Ltd.
发明人： LI, Zhanghui , HE, Zaisheng , XU, Dengke
IPC分类号： H03K7/08
摘要： Disclosed are a Pulse Width Modulation (PWM) generation circuit, a processing circuit and a chip. The PWM generation circuit is used for controlling a rotation speed of an external motor system. The PWM generation circuit includes a second clock prescaler and a PWM signal generator. A frequency division output end of the second clock prescaler is connected to a data input end of the PWM signal generator. The PWM signal generator includes an output frequency divider and a comparator. A clock output end of the output frequency divider is connected to a comparison input end of the comparator. By means of the technical solution, PWM signals with different duty ratios.

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