A low-power, high-gain circuit for function electrical stimulation （FES） is designed for the microelectronic neural signal regeneration system based on CSMC （CSMC Technologies Corporation） 0. 6μm CMOS （complemen...A low-power, high-gain circuit for function electrical stimulation （FES） is designed for the microelectronic neural signal regeneration system based on CSMC （CSMC Technologies Corporation） 0. 6μm CMOS （complementary metal-oxide-semiconductor transistor） technology. It can be used to stimulate microelectrodes connected with the nerve bundles to regenerate neural signals. This circuit consists of two stages： a full differential folded-cascode amplifier input stage and a complementary class-AB output stage with an overload protection circuit. The rail-to-rail input and output stages are used to ensure a wide range of input and output voltages. The simulation results show that the gain of the circuit is 81 dB; the 3 dB-bandwidth is 295 kHz. The chip occupies a die area of 1.06 mm × 0. 52 mm. The on-wafer measurement results show that under a single supply voltage of ＋ 5 V, the DC power consumption is about 7. 5 mW and the output voltage amplitude is 4. 8 V. The chip can also mn well under single supply voltage of ＋ 3.3 V.展开更多
The stronglink with muhi-try function based on MEMS technology and the PC startup in authentication system have been designed and fabricated. The generation principle and structure of UQS code are introduced, which co...The stronglink with muhi-try function based on MEMS technology and the PC startup in authentication system have been designed and fabricated. The generation principle and structure of UQS code are introduced, which consists of two groups of metal counter-meshing gears, two pawl/ratchet mechanisms, two driving micromotors and two resetting micromotors. The energy-coupling element is a photoelectric sensor with a circular and notched plate. It is fabricated using the UV-LiGA process and precision mechanical engineering. The PC startup authentication system is controlled by BIOS program, which is written into the chip according with special format. The program in BIOS output signals controls the running of stronglink to finish the process of authentication. The device can run more than 10000 times before a stop. The driving voltage is 12 V, and the normal decoding time is 3 s.展开更多
基金The National Natural Science Foundation of China(No90377013)
文摘A low-power, high-gain circuit for function electrical stimulation （FES） is designed for the microelectronic neural signal regeneration system based on CSMC （CSMC Technologies Corporation） 0. 6μm CMOS （complementary metal-oxide-semiconductor transistor） technology. It can be used to stimulate microelectrodes connected with the nerve bundles to regenerate neural signals. This circuit consists of two stages： a full differential folded-cascode amplifier input stage and a complementary class-AB output stage with an overload protection circuit. The rail-to-rail input and output stages are used to ensure a wide range of input and output voltages. The simulation results show that the gain of the circuit is 81 dB; the 3 dB-bandwidth is 295 kHz. The chip occupies a die area of 1.06 mm × 0. 52 mm. The on-wafer measurement results show that under a single supply voltage of ＋ 5 V, the DC power consumption is about 7. 5 mW and the output voltage amplitude is 4. 8 V. The chip can also mn well under single supply voltage of ＋ 3.3 V.
基金Sponsored by the National High Technology Research and Development Program (863 ) of China (Grant No.2003AA404210, 2005AA404250,2003AA404210, 2006AA01Z443)
文摘The stronglink with muhi-try function based on MEMS technology and the PC startup in authentication system have been designed and fabricated. The generation principle and structure of UQS code are introduced, which consists of two groups of metal counter-meshing gears, two pawl/ratchet mechanisms, two driving micromotors and two resetting micromotors. The energy-coupling element is a photoelectric sensor with a circular and notched plate. It is fabricated using the UV-LiGA process and precision mechanical engineering. The PC startup authentication system is controlled by BIOS program, which is written into the chip according with special format. The program in BIOS output signals controls the running of stronglink to finish the process of authentication. The device can run more than 10000 times before a stop. The driving voltage is 12 V, and the normal decoding time is 3 s.
