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91. 发明授权

US11671083B2 Voltage-glitch detection and protection circuit for secure memory devices 有权
公开(公告)号：US11671083B2
公开(公告)日：2023-06-06
申请号：US17241447
申请日：2021-04-27
申请人： Infineon Technologies LLC
发明人： Oren Shlomo
IPC分类号： H03K5/1252 , H03K5/153 , G11C7/20 , G11C7/02 , H03K17/22 , G01K7/18 , G01K7/20 , G01R19/25 , G11C7/14 , H03K5/24 , G11C7/10 , H03K5/19 , H03K17/24 , G05F1/648
CPC分类号： H03K5/1252 , G01K7/183 , G01K7/20 , G01R19/2506 , G05F1/648 , G11C7/02 , G11C7/1039 , G11C7/14 , G11C7/20 , H03K5/153 , H03K5/19 , H03K5/2472 , H03K17/223 , H03K17/24
摘要： A voltage-glitch detection and protection circuit and method are provided. Generally, circuit includes a voltage-glitch-detection-block (GDB) and a system-reset-block coupled to the GDB to generate a reset-signal to cause devices in a chip including the circuit to be reset when a voltage-glitch in a supply voltage (VDD) is detected. The GDB includes a voltage-glitch-detector coupled to a latch. The voltage-glitch-detector detects the voltage-glitch and generates a PULSE to the system-reset-block and latch. The latch receives the PULSE and generates a PULSE_LATCHED signal to the system-reset-block to ensure the reset-signal is generated no matter a width of the PULSE. In one embodiment, the latch includes a filter and a sample and hold circuit to power the latch, and ensure the PULSE_LATCHED signal is coupled to the system-reset-block when a voltage to the GDB or to the latch drops below a minimum voltage due to the voltage-glitch.

92. 发明授权

US11442800B2 Watchdog circuit systems 有权
公开(公告)号：US11442800B2
公开(公告)日：2022-09-13
申请号：US16985362
申请日：2020-08-05
申请人： Hamilton Sundstrand Corporation
发明人： Rajeeva Gopala Krishna , Shihab T. A. Muhammed
IPC分类号： G06F11/07 , G06F9/4401 , H03K3/037 , H03K21/08 , H03K5/00 , H03K5/19
摘要： A windowed watchdog circuit system can include a slow timer module configured to receive watchdog strobe signals from a processor and to determine whether a gap time between watchdog strobe signals is longer than a slow threshold time to output a slow threshold state when the gap time is longer than the slow threshold. The windowed watchdog circuit system can include a fast timer system configured to receive the watchdog strobe signals from the processor and to determine whether the gap time between watchdog strobe signals is shorter than a fast threshold time to output a fast threshold state when the gap time is shorted than the fast threshold. The windowed watchdog circuit system can be configured to output a reset state to reset the processor when any of the slow timer module and the fast timer system are outputting the slow threshold state or the fast threshold state, respectively.

93. 发明申请

US20210259085A1 ELECTRIC PULSE MONITOR FOR AN ELECTRIFIED ELEMENT 有权
公开(公告)号：US20210259085A1
公开(公告)日：2021-08-19
申请号：US17150486
申请日：2021-01-15
申请人： TransGard LLC
发明人： Ryan Escure , William Reichard
IPC分类号： H05C1/04 , H03K5/125 , H03K5/19
摘要： A monitor for an electrical control system has a pulse detection circuit configured to detect a voltage waveform output to an electrified element. The monitor also has a monitor processor. The monitor processor receives the voltage waveform from the pulse detection circuit, measures one or more parameters of the voltage waveform, receives additional information associated with the voltage waveform, compares the one or more parameters to the additional information, and performs an analysis process based on the comparison of the voltage waveform and the additional information. The monitor also has a communication interface configured to deliver a result of the analysis process to an interface component via one or more communication components connected to the monitor processor.

94. 发明授权

US11012060B2 Offset cancellation of duty cycle detector 有权
公开(公告)号：US11012060B2
公开(公告)日：2021-05-18
申请号：US16784002
申请日：2020-02-06
申请人： Micron Technology, Inc.
发明人： Yasuo Satoh
IPC分类号： H03K5/156 , H03L7/18 , H03K3/017 , H03K5/19
摘要： Several embodiments of electrical circuit devices and systems with a duty cycle correction apparatus that includes a duty cycle adjustment circuit that is configured to adjust a duty cycle of the input clock signal based on an averaged code value. The duty cycle correction apparatus includes a duty cycle detector circuit that receives first and second clock signals from a clock distribution network. The duty cycle detector is configured to output a duty cycle status signal that indicates whether the first clock signal is above or below a 50% duty cycle based on a comparison of the first clock signal to the second clock signal. The duty cycle correction apparatus also includes a counter logic circuit configured to determine the average code value, and the counter logic circuit automatically cancels an offset of the duty cycle detector when determining the averaged code value.

95. 发明授权

US10812057B1 Time detection circuit and time detection method 有权
公开(公告)号：US10812057B1
公开(公告)日：2020-10-20
申请号：US16726943
申请日：2019-12-26
申请人： Faraday Technology Corp.
发明人： Pei-Yuan Chou , Jinn-Shyan Wang , Chuen-Shiu Chen
IPC分类号： G01R25/00 , H03D13/00 , H03K5/19 , H03L7/085
摘要： A time detection circuit and a time detection method are provided. The time detection circuit includes an input signal processor and a time signal amplifier. The input signal processor receives a first input signal and a second input signal, calculates a time difference value between the first input signal and the second input signal, adjusts the time difference value by comparing the time difference value with a set reference value, and provides the adjusted time difference value. The time signal amplifier receives the adjusted time difference value, and amplifies the adjusted time difference value to generate an amplified time signal. The time signal amplifier operates in a linear operation region between a first time value and a second time value, and the set reference value is set according to the first time value and the second time value.

96. 发明授权

US10566965B2 Hot swap controller with multiple current limits 有权
公开(公告)号：US10566965B2
公开(公告)日：2020-02-18
申请号：US16407462
申请日：2019-05-09
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Artem Andreevich Rogachev
IPC分类号： H03K17/0812 , H03K17/12 , H03K5/19
摘要： A hot swap controller circuit includes a comparator and current control circuitry. The comparator is configured to compare voltage across a power transistor controlled by the hot swap controller circuit to a predetermined threshold voltage. The current control circuitry is coupled to the comparator. The current control circuitry is configured to limit current through the power transistor to no higher than a predetermined high current based on the voltage across the transistor being less than the predetermined threshold voltage. The current control circuitry is also configured to limit the current through the transistor to be no higher than a predetermined low current based on the voltage across the transistor being greater than the predetermined threshold voltage. The predetermined high current is greater than the predetermined low current.

97. 发明授权

US10511303B2 Gate driver for depletion-mode transistors 有权
公开(公告)号：US10511303B2
公开(公告)日：2019-12-17
申请号：US15716265
申请日：2017-09-26
申请人： Sarda Technologies, Inc.
发明人： Bogdan M. Duduman , Anthony G. P. Marini , William R. Richards, Jr. , William E. Batchelor , Greg J. Miller , John K. Fogg
IPC分类号： H03B1/00 , H03K3/00 , H03K17/22 , H03K7/08 , H03K5/19 , H02M3/07 , H03K17/06 , H02M1/08 , H02M3/158
摘要： The present disclosure presents a circuit, a method, and a system to drive a half-bridge switch using depletion (D) mode compound semiconductor (III-V) switching transistors for a DC-DC converter using at least one driver to drive the switches of the circuit. Also included is at least one charge pump electrically connected to a gate of the transistor, to maintain a voltage that holds the transistor in an off-state. The circuit includes AC coupling capacitors to level shift a voltage and realize fast transistor switching.

98. 发明授权

US10346264B2 Frequency converter 有权
公开(公告)号：US10346264B2
公开(公告)日：2019-07-09
申请号：US15542195
申请日：2015-12-17
申请人： Schmidhauser AG
发明人： Thomas Bisig
IPC分类号： H04L12/54 , G06F1/08 , H02M5/45 , H03K5/19 , H03L7/18 , G06F11/16 , H02M5/458 , H04L12/70
摘要： A frequency converter control unit has: a serial control unit interface, a control unit clock pulse generator for generating a control unit clock pulse, and a control unit processor which is designed to define a control parameter depending on an actual value. A power unit has a data connection to the control unit and has several power semiconductors, a power unit clock pulse generator for generating an adjustable power unit clock pulse, a serial power unit interface, a clock pulse generator adjustment unit which has a signal connection to the power unit interface and which adjusts the power unit clock pulse depending on signals received by the power unit on the power unit interface, a power unit processor which controls the power semiconductors depending on the control parameter and the power unit clock pulse, and a sensor unit that determines the actual value. The control unit transmits the control parameter via the control unit interface to the power unit. The power unit transmits the actual value via the power unit interface to the control unit.

99. 发明授权

US10326436B2 Hot swap controller with multiple current limits 有权
公开(公告)号：US10326436B2
公开(公告)日：2019-06-18
申请号：US15719665
申请日：2017-09-29
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Artem Andreevich Rogachev
IPC分类号： H03K17/0812 , H03K17/12 , H03K5/19
摘要： A hot swap controller circuit includes a comparator and current control circuitry. The comparator is configured to compare voltage across a power transistor controlled by the hot swap controller circuit to a predetermined threshold voltage. The current control circuitry is coupled to the comparator. The current control circuitry is configured to limit current through the power transistor to no higher than a predetermined high current based on the voltage across the transistor being less than the predetermined threshold voltage. The current control circuitry is also configured to limit the current through the transistor to be no higher than a predetermined low current based on the voltage across the transistor being greater than the predetermined threshold voltage. The predetermined high current is greater than the predetermined low current.

100. 发明授权

US10268790B2 Online monitoring unit and control circuit for ultra-wide voltage range applications 有权
公开(公告)号：US10268790B2
公开(公告)日：2019-04-23
申请号：US15560161
申请日：2017-02-24
申请人： Southeast University
发明人： Weiwei Shan , Wentao Dai , Jun Yang , Longxing Shi
IPC分类号： G06F17/50 , H03K5/19 , H03K5/1534
摘要： An online monitoring unit and a control circuit for ultra-wide voltage range applications are disclosed. Compared with a conventional online monitoring unit, present invention eliminates a need to reserve delay units, replaces flip-flops in the conventional online monitoring unit with a latch, and uses a transition detector with fewer transistors than that of a shadow latch in the conventional online monitoring unit, thereby reducing an area and a power consumption of the online monitoring unit significantly and improving an energy efficiency of online monitoring techniques. In addition, in the ultra-wide voltage range applications, a time borrowing property of the latch adopted by the present invention can be utilized to prevent a timing error caused by process-voltage-temperature (PVT) variations, thus enabling a minimization of a timing margin and ensuring a higher power efficiency. The present invention also discloses a control circuit for use with the online monitoring unit.

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