Compact: efficient: 24-V input auxiliary power supply reference design for servo drives
Description
This reference design showcases a method to generate power supplies required in a servo or AC drive including the analog and digtal I/O interfaces: encoder supply: isolated transceivers and digital processing block. This design also implements protection against input reverse polarity: output overload and short circuit conditions.
Features
- Powered from an external protective extra-low voltage (PELV) power supply of 24 V ±20%Industrial eFuse at supply input providing programmable UV/OV: reverse polarity protection: output overload and SC protectionSynchronous buck DC/DC converter with integrated switch optimized for >90% efficiency and compact sizePSR flyback with integarted switch to generate isolated voltage rails for communication and digital I/OsProgrammable voltage output to support multiple encoder typesOutput voltage rails: 24 VISO: 5 VISO: ±12 V: 5 V: 3.3 V: 2.5 V: 1.2 V with load and line regulation of
Applications
- HVAC controller
- HVAC fluid leak detector
- Servo drive control module
- Servo drive power stage module
- Laser distance meter
- HVAC motor control
- Linear motor segment controller
- Linear motor position sensor
- Linear motor power stage
- Robot servo drive
Product Categories
- Power management