Selection & application guides

Short, practical notes written around the questions buyers and engineers actually ask when they compare part numbers.

• Semiconductor Equipment

  Power for wafer handling, metrology and process tools, where a supply has to be quiet, stable and predictable over long unattended runs.

• Medical Equipment

  Power for imaging, diagnostic and patient-connected equipment, where leakage current, isolation and the applicable safety standard decide what may be used.

• Industrial Automation

  Power for control cabinets, PLC and I/O racks, drives and machine-side electronics, where the supply has to survive the electrical environment it sits in.

• How to choose a 5 V on-board AC/DC power module

  Four questions that decide which 5 V AC/DC module fits your board — and how the MORNSUN LS and LHE parts we stock differ from each other.

  On-board AC/DC Power Modules

• Sizing a 24 V DIN rail power supply for a control panel

  How to get from a load list to a part number, why the derating curve matters more than the headline wattage, and where the MORNSUN LIMF sizes sit.

  DIN Rail Power Supplies

• AC/DC or DC/DC: which converter does your design actually need?

  The difference is what you feed it, not how it works inside — plus isolation, safety approval and where each one belongs in a system.

• What an RS-485 transceiver does — and when you need CAN instead

  Unit load, node count, data rate, bus fault tolerance and ESD: the five numbers that decide which transceiver goes on your board.

  Power & Interface ICs

• Replacing a 7805 linear regulator with a K78 switching module

  Why a linear regulator on a 24 V rail wastes most of its input, what a K78 module changes, and how to read the part number.

  DC/DC Step-down Modules

• Enclosed metal-case power supplies: picking between 35 W and 200 W

  Where an enclosed supply beats a DIN rail one, why the LM200 has a different input range from the rest of the family, and how the six sizes compare.

  Enclosed Power Supplies