We solve AC-DC SMPS problems

Solves the noise problem of SMPS. Introduction of SMPS design method. Provides design data for SMPS. We help train SMPS design engineers. Help those who want to become SMPS designers. Cause analysis and suggestions for SMPS recall problems.

Design procedure
Explain the design procedure of Offline Switch mode Power Supplies.
・Power supply specifications
Client request. Check safety standards.
・Selection of the main device
Select a main device that satisfies the power supply specifications.
・Transformer design
Calculates and draws transformers to specifications and selected main devices.
・Schematics and bill of materials
Create a schematic and bill of materials from the main device datasheet and transformer calculation results.
・PCB design
Design a PCB board for the power supply board prototype.
・Switching waveforms
Check the switching waveform for any abnormalities in operation.
・Regulation and efficiency
Check if the input/output characteristics and efficiency are as specified.
・EMC noise
Check if the EMC noise satisfies the specification.
・Output noise
Check if the output ripple and spike noise meet the specifications.
・Protective function
Check the operation of overload protection and output overvoltage protection.
・Dynamic characteristics
Check the rise waveform and control characteristics of the output voltage.
・Temperature rise and life
Calculate the temperature rise of key components and estimated lifetime of electrolytic capacitors.
・De-Rating
Check margin for maximum ratings for all components.