Isolated power converters have emerged as an active research topic in power integrated circuit(IC)design.Reflecting this growing interest,ISSCC 2025 has featured a dedicated session on"Isolated Power and Gate Dri...Isolated power converters have emerged as an active research topic in power integrated circuit(IC)design.Reflecting this growing interest,ISSCC 2025 has featured a dedicated session on"Isolated Power and Gate Drivers".These converters enable safe and reliable power delivery across voltage domains and are widely used in renewable energy,electric vehicles,and telecommunications.Galvanic isolation prevents surge currents and ground loop issues in harsh high-voltage environments.As demand grows for compact,efficient,and high–power-density solutions,fully integrated architectures featuring on-chip transformers are increasingly favored over traditional module-based designs,offering>5 kV isolation with a smaller footprint and lower system cost[1].展开更多
The paper proposes a low power non-volatile baseband processor with wake-up identification(WUI) receiver for LR-WPAN transceiver.It consists of WUI receiver,main receiver,transmitter,non-volatile memory(NVM) and power...The paper proposes a low power non-volatile baseband processor with wake-up identification(WUI) receiver for LR-WPAN transceiver.It consists of WUI receiver,main receiver,transmitter,non-volatile memory(NVM) and power management module.The main receiver adopts a unified simplified synchronization method and channel codec with proactive Reed-Solomon Bypass technique,which increases the robustness and energy efficiency of receiver.The WUI receiver specifies the communication node and wakes up the transceiver to reduce average power consumption of the transceiver.The embedded NVM can backup/restore the states information of processor that avoids the loss of the state information caused by power failure and reduces the unnecessary power of repetitive computation when the processor is waked up from power down mode.The baseband processor is designed and verified on a FPGA board.The simulated power consumption of processor is 5.1uW for transmitting and 28.2μW for receiving.The WUI receiver technique reduces the average power consumption of transceiver remarkably.If the transceiver operates 30 seconds in every 15 minutes,the average power consumption of the transceiver can be reduced by two orders of magnitude.The NVM avoids the loss of the state information caused by power failure and energy waste caused by repetitive computation.展开更多
In contemporary society,personal vehicles are indispensable for enhancing everyday convenience,and numerous advanced technological solutions for safe driving are being proposed,including autonomous emergency braking s...In contemporary society,personal vehicles are indispensable for enhancing everyday convenience,and numerous advanced technological solutions for safe driving are being proposed,including autonomous emergency braking systems and lane departure warning systems.However,traditional sensors aimed at preventing incapacitated driving due to drowsiness,alcohol consumption,or sudden health issues often require additional power and may infringe upon driver privacy.A self-powered,nonintrusive motion recording system utilizing a triboelectric nanogenerator with an arch and cantilever structure(AC-TENG)as a sensor to track driver motions is introduced.Motion patterns of users are captured in real time by imaging the waveforms generated by the AC-TENG.To discern the peaks of the AC-TENG waveforms with greater precision and clarity,the roughness of the contact surface is enhanced using the reactive ion etching(RIE)technique,thereby amplifying the voltage by a factor of 2.1.The resulting output power of 2.77 mW and a corresponding power density of 3.08 W/m^(2)are demonstrated.Energy harvesting is facilitated by the proposed AC-TENG sensor,coupled with a power management integrated circuit(PMIC).Additionally,continuous wireless data transmission is enabled by using it as an input source alongside a solar cell.Motion data captured by the sensor are classified via deep transfer learning,enabling real-time monitoring of safe driving.Upon detection of any abnormal signals,the driver is promptly alerted by this system,and its application can be extended to functionalities such as transitioning the vehicle to autonomous driving mode.展开更多
基金supported in part by the National Natural Science Foundation of China under Grant U23A20353.
文摘Isolated power converters have emerged as an active research topic in power integrated circuit(IC)design.Reflecting this growing interest,ISSCC 2025 has featured a dedicated session on"Isolated Power and Gate Drivers".These converters enable safe and reliable power delivery across voltage domains and are widely used in renewable energy,electric vehicles,and telecommunications.Galvanic isolation prevents surge currents and ground loop issues in harsh high-voltage environments.As demand grows for compact,efficient,and high–power-density solutions,fully integrated architectures featuring on-chip transformers are increasingly favored over traditional module-based designs,offering>5 kV isolation with a smaller footprint and lower system cost[1].
基金supported in part by the National Natural Science Foundation of China(No.61306027)
文摘The paper proposes a low power non-volatile baseband processor with wake-up identification(WUI) receiver for LR-WPAN transceiver.It consists of WUI receiver,main receiver,transmitter,non-volatile memory(NVM) and power management module.The main receiver adopts a unified simplified synchronization method and channel codec with proactive Reed-Solomon Bypass technique,which increases the robustness and energy efficiency of receiver.The WUI receiver specifies the communication node and wakes up the transceiver to reduce average power consumption of the transceiver.The embedded NVM can backup/restore the states information of processor that avoids the loss of the state information caused by power failure and reduces the unnecessary power of repetitive computation when the processor is waked up from power down mode.The baseband processor is designed and verified on a FPGA board.The simulated power consumption of processor is 5.1uW for transmitting and 28.2μW for receiving.The WUI receiver technique reduces the average power consumption of transceiver remarkably.If the transceiver operates 30 seconds in every 15 minutes,the average power consumption of the transceiver can be reduced by two orders of magnitude.The NVM avoids the loss of the state information caused by power failure and energy waste caused by repetitive computation.
基金supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(No.RS-2024-00357072)the NRF and the Commercialization Promotion Agency for R&D Outcomes(COMPA)grant funded by the Korea government(Ministry of Science and ICT)(No.RS-2024-00432221)+1 种基金the Technology Innovation Program(No.RS-2022-00154983,Development of Low-Power Sensors and Self-Charging Power Sources for Self-Sustainable Wireless Sensor Platforms)funded by the Ministry of Trade,Industry&Energy(MI,Korea)supported by Basic Science Research Program through the NRF funded by the Ministry of Education(No.2018R1A6A1A03025708).
文摘In contemporary society,personal vehicles are indispensable for enhancing everyday convenience,and numerous advanced technological solutions for safe driving are being proposed,including autonomous emergency braking systems and lane departure warning systems.However,traditional sensors aimed at preventing incapacitated driving due to drowsiness,alcohol consumption,or sudden health issues often require additional power and may infringe upon driver privacy.A self-powered,nonintrusive motion recording system utilizing a triboelectric nanogenerator with an arch and cantilever structure(AC-TENG)as a sensor to track driver motions is introduced.Motion patterns of users are captured in real time by imaging the waveforms generated by the AC-TENG.To discern the peaks of the AC-TENG waveforms with greater precision and clarity,the roughness of the contact surface is enhanced using the reactive ion etching(RIE)technique,thereby amplifying the voltage by a factor of 2.1.The resulting output power of 2.77 mW and a corresponding power density of 3.08 W/m^(2)are demonstrated.Energy harvesting is facilitated by the proposed AC-TENG sensor,coupled with a power management integrated circuit(PMIC).Additionally,continuous wireless data transmission is enabled by using it as an input source alongside a solar cell.Motion data captured by the sensor are classified via deep transfer learning,enabling real-time monitoring of safe driving.Upon detection of any abnormal signals,the driver is promptly alerted by this system,and its application can be extended to functionalities such as transitioning the vehicle to autonomous driving mode.
