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Based on the requirement of IPD RF SIP application, the silicon based inductor and capacitor and rules have been studied at first. Meanwhile, a two-order silicon-based 2.4GHz bandpass filter with the size of 1.8mm*1.8mm was obtained by the combination of inductances and capacitors. The insertion loss at 2.4GHz is −1.35dB. Furthermore, to improve the selective of the bandpass filter, one transmission...
This paper presents a capacitively-coupled chopper instrumentation amplifier (CCIA) for portable EEG detection devices. In this design, the current-reuse technology is adopted in the core amplifier and the ripple reduction loop (RRL) to cut down the power consumption of the whole system. A novel ripple reduction loop based on ping-pong auto-zeroing topology is proposed to reduce the ripple at the...
This paper presents a framework for operational risk assessment of wind turbines (WTs). In the framework, a model for operational risk assessment of WT converters is established while considering the converter topological structures and the risk assessment of power modules, including insulated gate bipolar translator (IGBTs), diodes, and DC link capacitors. The WT anomaly detection is based on supervisory...
The motivation of the present paper lies in the lifetime assessment of DC link electrolytic capacitor of wind power converter considering operational condition. The electrothermal coupling finite element model (FEM) is developed in view of the actual operating condition of DC link electrolytic capacitor to obtain the thermal resistance of electrolytic capacitor at steady state. The power loss of capacitor...
This paper presents a novel short circuit current limiting device with series compensation, which is composed of a vacuum circuit breaker with a short closing time, a compensation capacitor and a limiting reactor. The vacuum circuit breaker with a short closing time is connected in parallel with the compensation capacitor and controls either the series compensation or the short circuit current limitation...
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