400-W Continuous, Scalable, ±2.5- to ±150-V, Programmable Ultrasound Power Supply Reference Design

(ACTIVE) TIDA-01352

Description & Features

Technical Documents

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Key Document

Description

The TIDA-01352 enables modular and efficient power scaling capability by providing a solution for digitally programmable power supply for powering ultrasound transmit circuit. The design uses push-pull topology to generate high-voltage (HV) and low- (LV) or MID- voltage power supplies. The HV rails are programmable from ±50V to ±150V, whereas the LV or MID rails are programmable from ±2.5V to ±50V. The power supply is capable of providing a continous power of 100-W on each rail. The programmability is implemented using onboard, 12-bit digital-to-analog converters (DACs). All the power supply rails are capable of being synchronized to a master clock. The design is scalable and modular allowing same supply to be duplicated or removed depending on number of channels and number of levels of pulser. The reference design also consists of other LV power supplies necessary for the pulser operation. This reference design is ideal for the high-voltgae DC-DC boost stage to use in conjuction with the floating (post) regulator design TIDA-01371.

Features
  • High-efficiency (89% at full load with 24-V input) push-pull topology enables scalability for lower or higher power (channel counts)
  • Independent positive and negative voltage power supplies helps achieving bipolar functionality for up to 192 digital pulser and linear amplifier transmit channels
  • Modular design allows same supply to be duplicated or removed depending on number of levels for pulser
  • Capable of switching frequency synchronization with ultrasound master or system clock frequency - helps in better harmonics rejection
  • Onboard, 12-bit, quad DAC enables digital programmability for output from ±2.5V to ±150 V (each rail can support 100-W continuous power and 350-W peak power)
  • Common power supply for pulser driver (to support B-Mode, CW-Mode, and elastography mode), internal level-shifters, and logic enables consolidation to single board design

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (11)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CDCE937  Programmable 3-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs  Clock Generators  Sample & Buy View Design Kits & Evaluation Modules
CSD17381F4  30V, N-Channel FemtoFET™MOSFET  Power MOSFET  Sample & Buy Not Available
CSD19506KCS  80V, N-Channel NexFET™ Power MOSFET  Power MOSFET  Sample & Buy Not Available
DAC60004  Ultra-Small, true 12-bit quad voltage output DAC with 1LSB INL/DNL   Digital-to-Analog Converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
LM5030  100V Push-Pull Current Mode PWM Controller  Offline and Isolated DC/DC Controllers and Converters  Sample & Buy View Design Kits & Evaluation Modules
LMZ34002  SIMPLE SWITCHER® 4.5V to 40V, 2A Negative Output Power Module  Non-Isolated Module  Sample & Buy View Design Kits & Evaluation Modules
LMZ34202  4.5V to 42V, 2A Step-Down Power Module in QFN Package  Non-Isolated Module  Sample & Buy View Design Kits & Evaluation Modules
REF5050  3 µVpp/V Noise, 3 ppm/°C Drift Precision Series Voltage Reference  Voltage Reference  Sample & Buy View Design Kits & Evaluation Modules
TLV171  36V Low-Power RRO General-Purpose Operational Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
TLV2171  36V, Low Power, RRO, General Purpose Operational Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
TPS7A49  Vin 3V to 36V, 150mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 7400 28 Jun 2017 645
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 3231 28 Jun 2017 35
ZIP 6527 28 Jun 2017 148
PDF 3635 28 Jun 2017 112
PDF 659 28 Jun 2017 94
PDF 113 28 Jun 2017 128
PDF 922 28 Jun 2017 422
Related Tools & Software

Reference Designs (1)



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