Passive Components Blog
No Result
View All Result
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    Murata Expands its Automotive Common Mode Choke Coils to 150C and High Current Capability

    Bourns Releases New Current Transformer

    Skeleton Releases GrapheneGPU to Reduce AI Energy Consumption by 44% and Boosts Power by 40%

    VINATech Expands Aluminum Capacitor Portfolio with Acquisition of Enesol

    binder Offers Wide Range of M12 Panel Mount Connectors

    Bourns Releases New Shielded Power Inductors for DDR5

    Supercapacitors Benefits in Industrial Valve Fail-Safe Control Systems

    Wk 21 Electronics Supply Chain Digest

    Samsung Electro-Mechanics Releases High-Capacitance MLCCs for AI Server Applications

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Coupled Inductors Circuit Model and Examples of its Applications

    Inductor Resonances and its Impact to EMI

    Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

    Causes of Oscillations in Flyback Converters

    How to design a 60W Flyback Transformer

    Modeling and Simulation of Leakage Inductance

    Power Inductor Considerations for AI High Power Computing – Vishay Video

    Coupled Inductors in Multiphase Boost Converters

    VPG Demonstrates Precision Resistor in Cryogenic Conditions

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    Murata Expands its Automotive Common Mode Choke Coils to 150C and High Current Capability

    Bourns Releases New Current Transformer

    Skeleton Releases GrapheneGPU to Reduce AI Energy Consumption by 44% and Boosts Power by 40%

    VINATech Expands Aluminum Capacitor Portfolio with Acquisition of Enesol

    binder Offers Wide Range of M12 Panel Mount Connectors

    Bourns Releases New Shielded Power Inductors for DDR5

    Supercapacitors Benefits in Industrial Valve Fail-Safe Control Systems

    Wk 21 Electronics Supply Chain Digest

    Samsung Electro-Mechanics Releases High-Capacitance MLCCs for AI Server Applications

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Coupled Inductors Circuit Model and Examples of its Applications

    Inductor Resonances and its Impact to EMI

    Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

    Causes of Oscillations in Flyback Converters

    How to design a 60W Flyback Transformer

    Modeling and Simulation of Leakage Inductance

    Power Inductor Considerations for AI High Power Computing – Vishay Video

    Coupled Inductors in Multiphase Boost Converters

    VPG Demonstrates Precision Resistor in Cryogenic Conditions

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

Inductor Simulation with LTSpice

24.8.2022
Reading Time: 4 mins read
A A

With LTSpice, Linear Technology has developed a high quality freeware SPICE simulator with no limitations on nodes or components and whose command set is largely compatible with other SPICE versions.

Here are a few of the software highlights:

RelatedPosts

Murata Expands its Automotive Common Mode Choke Coils to 150C and High Current Capability

Bourns Releases New Current Transformer

Skeleton Releases GrapheneGPU to Reduce AI Energy Consumption by 44% and Boosts Power by 40%

  • Comfortable circuit diagram editor
  • Integrated voltage and current probes
  • Efficiency report for switching controller applications
  • Extensive component library
  • Passive components R,L,C prepared as real components (editable) Library for SMD ferrites Active components Integrated calculation tools for analysis
  • FFT function
  • Extensive help function
  • Automatic update

Fig. 1.72: SwitcherCADIII: Screenshot with analyser window and circuit diagram editor

Depending on its position in the circuit diagram editor, the mouse pointer changes between the two probe symbols:

Voltage measurement at the selected node
Current measurement through the selected component

Fig. 1.73: Example of voltage measurement with subsequent curve profile calculation

The component library includes the following Würth Elektronik components as a special feature:

  • SMD ferrite WE-CBF
  • Current-dependent SMD ferrite model (Z[I] for WE-CBF high current SMD ferrite)
  • Current-compensated choke as a broadband model > 1 GHz (subcircuit models)
  • Transformer models (subcircuit models) → in preparation

Fig. 1.74: Component library for SMD ferrites

Fig. 1.75: An overview of the most important operating functions

Example of EMC simulation
Simulation of EMC ferrite filters combined with capacitors and resistors represents a typical application example. The simulation achieves the most realistic results the more the RF equivalent circuit diagrams of the components, boards, connectors, leads and sources are taken into account in creating the circuit in the simulation program.

Numerous practical tips for real components and their parasitic component values are to be found in this book; here are some typical values:

Fig. 1.76: Equivalent circuit diagrams and values for real components

Impedance of the supply voltage connection of an IC
The parasitic elements of an IC are significantly influenced e.g. by the packaging, the internal wire bonds, the number and configuration of the Vcc pins and the die layout. The IC manufacturers increasingly undertake efforts to minimise the parasitic elements and also to specify them. This allows information on the impedance behaviour to be issued.

Fig. 1.77: Simulation circuit for the determination of the impedance of an IC

The test circuit shown above represents the IC under investigation with L2/R3/C1, the impedance of the board with C2/R2, and the impedance of the SMA connector used with R1/L1. The simulation now allows the measurement of impedance behaviour at the SMA connector to be shown without complication:

Fig. 1.78: Impedance of an IC → a resonance peak occurs at 500 MHz, the typical impedance is around 10 Ω

Insertion loss of ferrite filters

Fig. 1.79: Simulation circuit for the insertion loss of EMC filters

It is important to consider that the unfiltered system (node n004 here) also has to be simulated in the insertion loss simulation to obtain the correct relationship (see → insertion loss).
The special feature of LTspice is that the EMC SMD ferrite is already integrated and can be directly entered in the circuit diagram editor. The filter response can appear as follows and be optimised accordingly:

Fig. 1.80: Simulation result for the insertion loss of the EMC filters from Figure 1.79


Related

Recent Posts

Murata Expands its Automotive Common Mode Choke Coils to 150C and High Current Capability

29.5.2025
3

Bourns Releases New Current Transformer

29.5.2025
7

Bourns Releases New Shielded Power Inductors for DDR5

29.5.2025
15

Samsung Electro-Mechanics Releases 165C Automotive 0806 Size Power Inductors

21.5.2025
26

Coupled Inductors Circuit Model and Examples of its Applications

21.5.2025
66

Würth Elektronik Introduces LTspice Models for ESD Products

21.5.2025
45

Littelfuse Gate Driver Integrates Diode and Current Limit Resistor in Compact IC

21.5.2025
19

Capacitor Ripple Current Testing: A Design Consideration

21.5.2025
62

TDK Releases 0201 High-Frequency Smallest Inductors

20.5.2025
33

Coilcraft Extends Air Core RF Inductors

20.5.2025
16

Upcoming Events

Jun 4
11:00 - 12:00 CEST

Würth Elektronik PCB Production in Asia

View Calendar

Popular Posts

  • Buck Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Boost Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Flyback Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • LLC Resonant Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • What is a Dielectric Constant and DF of Plastic Materials?

    4 shares
    Share 4 Tweet 0
  • How to Design an Inductor

    0 shares
    Share 0 Tweet 0
  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • Flying Capacitors Explained

    0 shares
    Share 0 Tweet 0
  • Skeleton Releases GrapheneGPU to Reduce AI Energy Consumption by 44% and Boosts Power by 40%

    0 shares
    Share 0 Tweet 0
  • SEPIC Converter Design and Calculation

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

Passive Components Blog

© EPCI - Leading Passive Components Educational and Information Site

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

No Result
View All Result
  • Home
  • Knowledge Blog
  • Premium Suppliers

© EPCI - Leading Passive Components Educational and Information Site

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.
Go to mobile version