Electronic Simulation Series - Thermistors

Vishay thermistors make sense in many applications: NTC or PTC thermistors are needed for temperature sensing and compensation, protection against overvoltages, and the attenuation of surge currents. The electronic simulation of analog electronics using models of these thermistors can help design engineers working in these fields to develop their intuition. This video series — dedicated to electronic simulation with Vishay thermistors and RTDs — will explore design simulations for the temperature control of thermoelectric modules, heat detector temperature compensation of resistive strain gage sensors, air flow detection, and more general PID temperature control circuits.

Part 1:
An Innovative Approach

Explains the Vishay approach in regard to electronic simulation with thermistors, and shows partner platforms in which users can either simulate online, download models, or complete simulations.

Part 3:
Simetrix Spice Models for PTCEL

Focuses on how to use SPICE models of leaded PTCEL components in SIMetrix (with the cooperation of SIMetrix Technologies Ltd.)

Part 5:
Temp Compensation of Strain Gage Resistive Sensor

Presents a simulation of analog hardware temperature compensation in a Wheatstone bridge for resistive strain gages using five software simulation tools (LTspice®, Multisim, PSpice®, PSpice® for TI, and SIMetrix).

Part 7:
Back to School for Study of PID Temperature Control

Features an LTspice® simulation for the optimization of a full old-school analog proportional / integrator / derivator (PID) controller with temperature measurement performed by a Vishay NTC thermistor. 

Part 9:
Once upon a time an analog thermostat

Explains the Vishay approach in regard to electronic simulation with thermistors, and shows partner platforms in which users can either simulate online, download models, or complete simulations.

Part 11:

BUILD A PTCEL67 SURGE CURRENT LIMITER NETWORK FOR FAST BATTERY PRE-CHARGING

This video explains the advantages of the high energy current limiting PTCEL67 range in battery pre-charge circuit. By use of an LTspice electronic simulation, it is shown how to build an optimal network of parallel and series of these PTCEL67 elements in order to limit the surge current while keeping the shortest charging time of the DC link capacitor. 

Part 2:
An Innovative Approach (continued)

Further explores the Vishay approach in regard to electronic simulation with thermistors and RTDs, with a focus on PTC current limiting thermistors.

Part 4:
An Insight into TEC Temperature Control Application

Highlights an LTspice® simulation with a focus on the thermoelectric Peltier element, ADI’s ADN8834 controller, and Vishay's NTCLE213 thermistor, and how the parts articulate themselves to obtain optimal and realistic temperature control.

Part 6:
Air flow detection with SMD 0402 TFPT; 5Ω RTD

Highlights an LTspice® simulation of a constant temperature anemometer circuit based on the dissipation characteristics of a 5 W TFPT0402 RTD.

Original material used for Peltier SPICE model to be found here.

Part 8:
Fire detectors Ad Lib

Provides LTspice® simulations using Vishay thermistors in several designs for fire detector applications (level detection and rate of rise).     

Part 10:
fOR A FEW THERMOSTATS MORE

Explores the Vishay approach in regard to electronic simulation with thermistors, and shows partner platforms in which users can either simulate online, download models, or complete simulations.

Benefits

By integrating the Vishay models directly into their corporate or personal software, design engineers will be able to simulate their circuits, exploring worst case scenarios or Monte Carlo distributions for the component tolerances. They will acquire a better understanding of their applications by pushing their tolerance limits. This will eventually lead to cost savings, as it can eliminate tedious hours of trial and error in the lab. Whether they use LTspice®, PSpice® (for TI), SIMetrix, TINA TI, Multisim, Altium Designer, or another multi-domain language like VHDL AMS (Siemens EDA), Vishay’s models will work in a plug and play mode. 

Get Started

Entire self-contained files of these simulations are available for download on platforms like Siemens EDA Part Quest explore or Hackster.io, as well as vishay.com. Not only are the thermistors models included, but so are other devices involved in the applications, like Peltier modules, strain gages, optocouplers, and more.

INTERESTED IN LEARNING MORE ABOUT ELECTRONIC SIMULATION? EXPLORE OUR RECENT SERIES OF WEBINARS BELOW.

webinar

Webinar: Solutions Unleashed - Exploring electronic simulation

In this session, we unveil a wide range of solutions tailored to revolutionize your designs. From advanced components to reference designs, we’ll demonstrate how our product offerings can elevate your products to new heights of efficiency and performance. Moreover, we showcased the exceptional capabilities of electronic simulation, enabling you to simulate and optimize circuit designs with unparalleled precision. With a special focus on NTC thermistors and RTDs for temperature sensing and compensation and PTCs for inrush current limiting, we’ll explore their significant role in various applications and highlight how they can be seamlessly integrated into your design.

webinar

Webinar: SPICEification of Vishay Non Linear Resistors with QSPICE™  from QORVO

In this session, we unveil a range of solutions tailored to revolutionize your designs in a brand new SPICE simulation tool: QSPICE™ from QORVO. We’ll showcase the capabilities of this new design tool, enabling you to simulate and optimize circuit designs with unparalleled precision. After a brief recall of the Vishay Non-Linear Resistors product ranges, NTC thermistors and RTDs for temperature sensing and compensation and PTCs for inrush current limiting will be tested in QSPICE™ in various applications. Emphasis will be placed on the fact that QSPICE™ supports VERILOG and C++, which makes it ideal for design of digital temperature sensing applications.

 

webinar

Virtual Testing of Vishay Thermistors and RTD's with Simulink® Simscape

Following our first two webinars about electronic simulation with Vishay non-linear resistors (NTC / PTC thermistors and RTD), we present a new simulation composed of components with a new software: MATLAB® Simulink® / Simscape by MathWorks®. Simscape is a multi-domain software that allows many problems to be solved in the fields of mechatronics, hydraulics, and power electronics, among others. It is thus ideal for simulating sensors and protection elements, which often bind these different domains. 

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