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CMOS amplifier using chopper stabilization and sample-and-hold techniques
TENCON 2007 - 2007 IEEE Region 10 Conference, 2007A low-noise CMOS amplifier operating at a low supply voltage is developed using the noise reduction technique of chopper stabilization. Unlike the conventional chopper stabilization technique that uses low pass filter to reduce the low frequency noise, the proposed amplifier uses the chopper stabilization technique and replaces the demodulator and the ...
T. S. Liu, null Chia-Jiu Wang
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High-Precision Bandgap Voltage Generation Method With Chopper Stabilization Technique
2019 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC), 2019A Three-level chopping technique to reduce offset caused by mismatch of the Wilson Current-mirror and PNP bipolar transistor is descried and presented. Input referred offset voltage of the PNP transistor is reduced on first level. On second level, Wilson Current-mirror offset is further reduced along with the low frequency 1/f noise caused by the self ...
Li Chuang-ze +3 more
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Design of novel chopper stabilized rail-to-rail operational amplifier
2015 IEEE 11th International Conference on ASIC (ASICON), 2015A chip design of novel chopper stabilized operational amplifier was presented, chopper-wave modulation and demodulation was used in this architecture, and its 1/f noise was decreased largely. To extend input common mode voltage range, a novel rail-to-rail differential amplifier was adapted in the input stage.
Xu Yong +3 more
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A chopper stabilized voltage reference using diode-connected MOS transistor
2010 International Symposium on Intelligent Signal Processing and Communication Systems, 2010A reference using diode-connected MOS transistor and incorporating chopper stabilization is proposed. Mutual compensation of mobility and threshold voltage temperature effects provides good temperature stability; chopper stabilization improves the initial accuracy and noise performance.
null Lin Jie +3 more
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Bidirectional current conveyer with chopper stabilization and dynamic element matching
2012 IEEE International Symposium on Circuits and Systems, 2012A compact and accurate current conveyer for interfacing with a three-electrode electrochemical sensor is presented. It employs chopper stabilization to reduce transistor sizes for a given flicker noise. A current-copying circuit generates a mirror image of the sensor current for bidirectional conveying. It employs dynamic element matching to remove the
Hamed Mazhab Jafari, Roman Genov
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Chopper-stabilized instrumentation amplifier with reconfigurable inverting/non-inverting modes
2014 International Symposium on Next-Generation Electronics (ISNE), 2014A chopper-stabilized instrumentation amplifier (IA) with reconfigurable inverting and non-inverting modes is realized in CMOS 0.35um technology. A resistive feedback network is proposed to increase gain by lowering the resistance, which eliminates the conventional need for high resistance values.
Tao Wang, Yu-Pin Hsu
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Chopper stabilized CMOS integrated front-end for magnetic field measurement
IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics, 2006This paper presents an analogue front-end dedicated to magnetic field measurement that is intended to be used in a mixed signal submicron CMOS microsystem. The front-end features a Hall device and its biasing circuitry both associated to a nested chopper-like structure. This system efficiently removes 1/f noise and reduces offset. The biasing amplifier
Vincent Frick +3 more
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Stability of chopper‐controlled DC series motor under regenerative braking
Electrical Engineering in Japan, 1978An entire system of the chopper-controlled dc series motor is derived taking into account the core saturation, response delay of field flux, etc. First an equivalent linear model is derived and then its transfer function for a small disturbance is derived.
Nobuyuki Matsui +2 more
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Stability Enhancement using a DC-Chopper, Crowbar, and FACTS Device
2020A fixed speed wind turbine generator system that uses induction generator as a wind generator has the stability problem similar to a synchronous generator. On the other hand, a doubly fed induction generator (DFIG) has the flexibility to control its real and reactive powers independently while being operated in variable speed mode. This chapter focuses
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IEEE Transactions on Circuits and Systems I: Regular Papers, 2023
Kuang-Wei Cheng, Sheng-Kai Chang
exaly
Kuang-Wei Cheng, Sheng-Kai Chang
exaly