ArticleSensors (Basel, Switzerland)2020
Wide Bandwidth Class-S Power Amplifiers for Ultrasonic Devices.
Article in Sensors (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Harmonic-Reduced Bias Circuit for Ultrasound Transducers.Sensors (Basel, Switzerland) · 2023Article
- An Inverse Class-E Power Amplifier for Ultrasound Transducer.Sensors (Basel, Switzerland) · 2023Article
- A Doherty Power Amplifier for Ultrasound Instrumentation.Sensors (Basel, Switzerland) · 2023Article
- Novel dual-resistor-diode limiter circuit structures for high-voltage reliable ultrasound receiver systems.Technology and health care : official journal of the European Society for Engineering and Medicine · 2022Article
- Fisheye lens design for solar-powered mobile ultrasound devices.Technology and health care : official journal of the European Society for Engineering and Medicine · 2022Article
- A New Approach to Power Efficiency Improvement of Ultrasonic Transmitters via a Dynamic Bias Technique.Sensors (Basel, Switzerland) · 2021Article
- Novel Bandwidth Expander Supported Power Amplifier for Wideband Ultrasound Transducer Devices.Sensors (Basel, Switzerland) · 2021Article
- The Radial Electric Field Excited Circular Disk Piezoceramic Acoustic Resonator and Its Properties.Sensors (Basel, Switzerland) · 2021Article
- Development of a low-cost six-axis alignment instrument for flexible 2D and 3D ultrasonic probes.Technology and health care : official journal of the European Society for Engineering and Medicine · 2021Article
- Inter-Stage Output Voltage Amplitude Improvement Circuit Integrated with Class-B Transmit Voltage Amplifier for Mobile Ultrasound Machines.Sensors (Basel, Switzerland) · 2020Article
- Post-Voltage-Boost Circuit-Supported Single-Ended Class-B Amplifier for Piezoelectric Transducer Applications.Sensors (Basel, Switzerland) · 2020Article
- Wireless Ultrasound Surgical System with Enhanced Power and Amplitude Performances.Sensors (Basel, Switzerland) · 2020Article
- Development of an Accurate Resonant Frequency Controlled Wire Ultrasound Surgical Instrument.Sensors (Basel, Switzerland) · 2020Article
- A Class-J Power Amplifier Implementation for Ultrasound Device Applications.Sensors (Basel, Switzerland) · 2020Article
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
Wide bandwidth ultrasonic devices are a necessity in high-resolution ultrasonic systems. Therefore, constant output voltages need to be produced across the wide bandwidths of a power amplifier. We present the first design of a wide bandwidth class-S power amplifier for ultrasonic devices. The -6 dB bandwidth of the developed class-S power amplifier was measured at 125.07% at 20 MHz, thus, offering a wide bandwidth for ultrasonic devices. Pulse-echo measurement is a performance measurement method used to evaluate the performance of ultrasonic transducers, components, or systems. The pulse-echo signals were obtained using an ultrasonic transducer with designed power amplifiers. In the pulse-echo measurements, time and frequency analyses were conducted to evaluate the bandwidth flatness of the power amplifiers. The frequency range of the ultrasonic transducer was measured and compared when using the developed class-S and commercial class-A power amplifiers with the same output voltages. The class-S power amplifiers had a relatively flat bandwidth (109.7 mV at 17 MHz, 112.0 mV at 20 MHz, and 109.5 mV at 23 MHz). When the commercial class-A power amplifier was evaluated under the same conditions, an uneven bandwidth was recorded (110.6 mV at 17 MHz, 111.5 mV at 20 MHz, and 85.0 mV at 23 MHz). Thus, we demonstrated that the designed class-S power amplifiers could prove useful for ultrasonic devices with a wide frequency range.
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