High efficiency power supply architecture reference design for protection relay processor module
Description
This reference design showcases various power architectures for generating multiple voltage rails for an application processor module: requiring >1A load current and high efficiency . The required power supply is generated using 5-: 12- or 24-V DC input from the backplane. Power supplies are generated using DC-DC converters with an integrated FET and a power module with an integrated inductor for size. The design features a HotRod™ package type for applications requiring low EMI. It is also optimal for design time constrained applications. Additional features include DDR termination regulator: input supply OR-ing: voltage sequencing: eFuse for overload protection: and voltage and load current monitoring. This design can be used with a processor: digital signal processor and field-programmable gate array. It has been tested for radiated emission: per CISPR22 meeting class A and B requirements.
Features
- Power supply generation with 24-V input using synchronous step down DC-DC converter with integrated FET: compact nano power module with excellent load transient performance and accurate output regulationPower modules in QFN package that offer optimal thermal performanceDC-DC converters in HotRod™ package for low EMIPower supply generation with 12-V input using OR-ing controller for redundant operation interfaced to high efficiency DC-DC converter or external evaluation modulePoint of load (POL) supply generation with 5-V input using PMIC : DC-DC converter and linear regulators or DC-DC converter > 3A load with improved low load efficiency and load sharingClean supply using 1A: dual-output: low dropout linear regulator with low-noise: high-bandwidth PSRRR
Applications
- String inverter
- Oscilloscopes & digitizers
- Digital multimeter (DMM)
- Aircraft cockpit display
- Interconnect/distribution box
- Lab & field Instrumentation
- Fault indicator (FI)
- AC charging (pile) station
- Laser distance meter
- DC fast charging station
- Power quality analyzer
- Multifunction relay
- AC analog input module
- Processor module
- Wired communication modules
- Expansion module
- EV charging station HMI module
- DC fast charging power module
- Wireless EV charging station
- Substation automation
- Circuit breaker (ACB
- MCCB
- VCB)
- DC wallbox charger
Product Categories
- Power management