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This paper presents a half-bridge driver to fulfill the requirement for interfacing with MEMs sensors. The upper switch of the driver is implemented by a p-type power transistor to make the driver feasible for pulse density modulated input signal. The high-side “ground” reference voltage VSSH is regulated through the proposed charge pump circuit, which harvests the charges flowing into the VSSH node...
This brief presents a high-voltage (HV) transducer driver to fulfill the requirement of the proposed high-data-rate down-hole acoustic telemetry system. The driver is targeted to drive a stack of piezoelectric disks modeled as a capacitive load of 0.3 and across a broadband from 600 Hz to 1.2 kHz. To ensure stability, the driver is designed as an open-loop system, comprising a dead-time...
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