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Online Circuit Simulator

Update Information

Nov.2025

A Interleaved PFC topology has been added to the AC-DC converter.

Oct.2025

A PCB Illustration Window has been added to the AC-DC and DC-DC Flyback, and the DC-DC Non-Isolated_Buck_Converter sections.

Aug.2025

A Single PFC topology has been added to the AC-DC converter.
The feature enabling arbitrary setting of transformer parameters has been added to the Full-Bridge circuit of the AC-DC/DC-DC converter.

Jul.2025

A feature has been added to the AC-DC/DC-DC converter's half-bridge circuit, allowing the transformer parameters to be set arbitrarily.

Jun.2025

A feature has been added to the AC-DC converter’s flyback circuit, allowing the transformer parameters to be set arbitrarily.

Apr.2025

A feature has been added to the DC-DC converter's flyback circuit, allowing the transformer parameters to be set arbitrarily.

Dec.2024

Three topologies (Flyback, Half-Bridge, Full-Bridge) have been added to the DC-DC converter for the second stage of AC-DC converter.

Online Circuit Simulator

The Online Circuit Simulator allows users to verify and select MOSFETs.
Operation is easily verified without the hassle of building a simulation environment and downloading element models.
By changing the MOSFET and circuit constants and comparing the simulation result waveforms and power conversion efficiency, you can identify the MOSFET that matches the target specifications.

  

Login is required to use the circuit simulator. 

List of Simulation Target Topologies

* Simulation is recommended for use on a PC. System maintenance will take place every Tuesday from 8:00 AM to 10:00 AM (JST). During this period, the system may not operate normally.

Power Supply Type Topology Input Voltage Range (V) Output Power Range (W)

AC-DC

PFC (First Stage of AC-DC) Single_PFCNEW 100 or 230 400 to 1600
Interleaved_PFCNEW 100 or 230 400 to 1600
DC-DC (Second Stage of AC-DC) Flyback 300 to 420 5 to 120
Half-Bridge 300 to 420 100 to 1600
Full-Bridge 300 to 420 300 to 2000

DC-DC

  Flyback 12 to 100 1 to 120
Non-Isolated_Buck_Converter 10 to 60 1 to 100
Half-Bridge 12 to 180 100 to 300
Full-Bridge 12 to 180 200 to 500

Features

Function Introduction/Operation Procedure

Contacts

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