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Published in:
2012 | OriginalPaper | Chapter
Design of the Driving Circuit Based on CPLD in Transmitter of Transient Electromagnetic Instrument
Authors : Dongge Han, Guangmin Sun, Dequn Zhao, Bo Peng
Published in: Advances in Future Computer and Control Systems
Publisher: Springer Berlin Heidelberg
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A driving circuit in transient electromagnetic instrument is designed based on CPLD. In the circuit, the transmitting waveforms are generated by CPLD and the synchronization is implemented by wired. In addition, the gate driver IR2110 for the power switch devices is employed to control the high-power MOSFET for driving the H-bridge. Compared with the reference circuit, the generated waveform of the proposed circuit has short turn-off time and high current. The testing results show that the proposed circuit has a better performance on driving the coils. The transmission delay is reduced and the measuring accuracy is further improved to deepen the detecting depth.