Programmable Logic Controller (PLC) Solution

Contributes to energy saving and stable operation by improving power supply performance and protective functions
Programmable Logic Controller (PLC) Solution

Programmable logic controller (Programmable Logic Controller: PLC) is used in a wide range of fields, including elevators, traffic lights, vending machines and other familiar equipment, as well as factory automation. Regardless of whether in an enclosure or in a controller, the PLC is mostly installed in the presence of many types of machines/devices. For this reason, it is necessary to reduce the installation space by reducing the size and heat generation, and to ensure reliable and stable operation even in environments where electromagnetic noise and surges are generated due to the operation of surrounding machines and equipment. Toshiba's MOSFETs using new process technology with high heat dissipation packages contribute to create of high-efficiency power supplies and offer performances suitable for equipment power supply circuits and output stages. In addition, Toshiba's photocouplers, TVS diodes (ESD protection diodes), and other high-performance semiconductor products with various protective functions can be used to improve PLC total protection performance.


  • MOSFETs’ improvement of power utilization efficiency by reducing on-resistance
  • MOSFETs’ high heat dissipation package for reduction of heat generation
  • Optical coupling provides high isolation strength and improves signal line operational stability
  • Compliance with safety standards (UL, cUL, etc.) (photocouplers)
  • Useful application notes, reference designs, and other documents on the web save design cycle time

Digital Input Module

Digital Output Module

Power Module

Other block diagrams

Analog input module circuit (single channel)
Example of analog input module circuit by discrete solution
Application / Programmable Logic Controller
Analog output module circuit (multiple channels)
Example of analog output module circuit by discrete solution
Application / Programmable Logic Controller
MCU module (RS-485 communication) circuit
Example of MCU module circuit by discrete solution
Application / Programmable Logic Controller

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