The Online Circuit Simulator eliminates the need for special software

・A simulation tool that enables selection of MOSFETs for use in switched-mode power supply circuits online
・After selecting the topology, simply set the power supply specifications to enable verification using the circuit model of the recommended MOSFET
・The circuit parameters of passive components can be changed

To use this function, registration as a member is required.
Please click the button below to register as a member.

Register

The Online Circuit Simulator eliminates the need for special software.

Introduction

The efficiency of switched-mode power supply circuits varies greatly with the MOSFETs and the values of the peripheral components that are used. In order to verify performance and select and appropriate MOSFET, simulations are often used in circuit design.

Typically, making a simulation requires building an environment, creating/designing a simulation circuit, obtaining an element model, and making various settings. These are all tasks that take time and resources.

The Online Circuit Simulator, a new tool for selecting MOSFETs for power supply circuits, saves time, effort and resources. Simulations run on the Web, and results can be checked in real time.

The tool is free to use, and we invite you to make full use of it.

For more on the use and functions of the Online Circuit Simulator, please refer to the following.
Check the Simulator Introduction/Operation Video 

 

Feature 1: Simple Specification Input

The steps required for simulation are to select the topology and set the power supply specifications. The topology is selected from the basic topologies provided. In addition, four items such as input/output voltage can be set for the power supply specifications using input boxes and slide bars. The recommended MOSFETs are automatically narrowed down based on the set values, making it easy to select a MOSFET which matches the target specifications by referring to values ​​such as the drain-source on-resistance (RDS(ON)).

Figure 1: Topology Selection
Figure 1: Topology Selection
Figure 2: Power supply specification settings and MOSFET list
Figure 2: Power supply specification settings and MOSFET list
Figure 3: Search window
Figure 3: Search window

If the desired MOSFET is not displayed in the list, it can be search by setting conditions such as product-name and drain-source-voltage (VDSS) from the search window. The search window displays data such as the drain current (ID), drain-source on-resistance (RDS(ON)), and generation information. By sorting the data in any way, the MOSFET matching the requirements can be serached.

Check the Simple Specification Input Overview Video

Feature 2: Simulation Setting Selection

Figure 4: Select Simulation Setting
Figure 4: Select Simulation Setting

To run a simulation, either the "Fast mode" or the "Accurate mode" is chosen. To quickly check the overview of the operation, please use Fast mode.
Although the simulation runtime will be slightly longer, to check the efficiency and waveform in detail, please use Accurate mode.
Check the Simulation Setting Selection Overview Video

Feature 3: Feature-rich Graph Display

Figure 5: Graphical representation of simulation results
Figure 5: Graphical representation of simulation results

Simulation results are displayed as waveform graphs of the steady state, not the transient state at the start of the simulation. Multiple graph windows can be opened, and results can be seen by selecting the waveforms to be displayed in each window and adjusting the graph range. Also, the simulation results after changing the MOSFETs or circuit parameters can be added to the open graph windows for comparison. Users can also save the simulation results as CSV files.
Check the Feature-rich Graph Display Overview Video

To use this function, registration as a member is required.
Please click the button below to register as a member.

Register

Back to Highlighted Contents

A new window will open