Abstract
Design of an equivalent slew-rate monolithic pulse generator using bipolar-CMOS-DMOS (BCD) technology for medical ultrasound transmitters is presented in this paper. The pulse generator employs a floating capacitive coupling level-shifter architecture to produce a high-voltage (Vp p = 80V) output. The performance of equivalent slew-rate in the rising and falling edge is achieved by carefully choosing the value of coupling capacitors and the size of the final stage high-voltage MOSFETs of the pulse generator. The measured output pulses show the rising and falling time of 8.6 nsec and 8.5 nsec, respectively with second harmonic distortion down to −40 dBc, indicating the designed pulse generator can be used for advanced ultrasonic harmonic imaging systems.
| Original language | English |
|---|---|
| Pages (from-to) | 1121-1127 |
| Number of pages | 7 |
| Journal | IEICE Transactions on Communications |
| Volume | E102B |
| Issue number | 6 |
| DOIs | |
| State | Published - 2019 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:Copyright © 2019 The Institute of Electronics, Information and Communication Engineers.
Keywords
- Harmonic distortion
- High voltage pulse generator
- Medical imaging
- Ultrasound scanner
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