Tunable Bandwidth Third Order Switched-Capacitor with Multiple Feedbacks Filter for Different Center Frequencies

This paper proposes third order tunable bandwidth active Switched-Capacitor filter. The circuit consists of only op-amps and switched capacitors. The circuit is designed for circuit merit factor Q = 10. The proposed circuit implements three filter functions low pass, band pass and high pass simultaneously in single circuit. The filter circuit can be used for both narrow as well as for wide bandwidth. For various values of cut-off frequencies the behaviour of circuit is studied. The circuit works properly only for higher central frequencies, when f0 > 10 kHz.

TSC无功补偿装置在电铲上的应用

本文介绍了2300XP型电铲原有TSC无功补偿装置的特点。针对其存在的问题,在原有基础上,改进了TSC投切策略,以提高无功补偿装置的鲁棒性和使用寿命,并进行了原理仿真及现场运行。实际应用结果表明新的TSC无功补偿装置运行正常、可靠性高。