Analog DevicesEVAL-CN0508-RPIZDevelopment Kits and Tools

This circuit is a single-channel, 75 W benchtop power supply featuring an adjustable, wide output voltage range of 0 V to 27.5 V and current limiting/constant current operation (up to 3 A).

With a Raspberry Pi®-compatible expansion header, electronic control through either a local touchscreen or over a wireless or wired network connection is possible. Output voltage can be controlled manually or by software, and a manual current-limit control sets the transition from constant voltage to constant current operation. The benchtop power supply features a hybrid buck/linear architecture, providing low output ripple and low output capacitance, excellent transient response, regulation to 0 V and 0 A, and low power dissipation that eliminates the need for heat sinks.

The complete solution is low cost, compact, and easily configured for standalone operation or integration into other equipment.

Key Features and Benefits

• •  Featuring LT8612 buck converter, LT3081 linear regulator, LT3092 current source, LTC1983 negative supply
• •  True 0 V and 0 A operation
• •  Manual operation or software controllable using a Raspberry Pi
• •  Measure system temperature, output voltage, and output current

Applications

• •  Instrumentation and measurement: electronic test and measurement, benchtop power supply
• •  General purpose

Block Diagrams and Tables