Conference paper
High-voltage integrated linear regulator with current sinking capabilities for portable ultrasound scanners
This paper presents a high-voltage integrated regulator capable of sinking current for driving pulse-triggered level shifters in drivers for ultrasound applications. The regulator utilizes a new topology with a feedback loop and a current sinking circuit to satisfy the requirements of the portable ultrasound scanner: a great driving strength in the scanner's transducer and a low undershoot voltage in the output node.
The design regulates an output voltage of 45 V from an input voltage of 50 V, and it can sink currents up to 100 mA using no external components with only 340 mV of undershoot voltage. The proposed design has been implemented in high-voltage 0.18 μm process whithin an area of 0.11 mm2 and it is suitable for system-on-chip integration due to its low component count and the fully integrated design.
Language: | English |
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Publisher: | IEEE |
Year: | 2017 |
Pages: | 1-5 |
Proceedings: | 2017 IEEE Nordic Circuits and Systems Conference |
ISBN: | 1538628449 , 1538628457 , 9781538628447 and 9781538628454 |
Types: | Conference paper |
DOI: | 10.1109/NORCHIP.2017.8124942 |
ORCIDs: | Llimos Muntal, Pere and Jørgensen, Ivan Harald Holger |
Power demand Regulators Resistors Transducers Transistors Ultrasonic imaging Voltage control circuit feedback current sinking capabilities current sinking circuit driver circuits driving strength feedback loop fully integrated design high-voltage integrated linear regulator input voltage low undershoot voltage low-power electronics optical scanners output node output voltage regulation portable ultrasound scanner pulse circuits pulse-triggered level shifters scanner transducer size 0.18 mum system-on-chip integration ultrasonic transducers ultrasound applications voltage 340.0 mV voltage 45.0 V voltage 50.0 V voltage regulators