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

    TDK Introduces High Current 80VDC Board-Mount EMI Filters

    Bourns Releases High Heat Tolerant TO-227 Thick Film Resistor

    TDK Increases Current Ratings of Automotive Thin-Film Power Inductors

    Sumida Announces New DC Common Mode Choke Coil Series

    KYOCERA AVX Releases New 3dB Hybrid Couplers

    SCHURTER Unveils High Voltage Fuses for EV Applications

    YAGEO Releases First to Market 750V Aluminum Capacitors

    binder Introduces M9 Compact Circular Connector

    Smolteks CNF-MIM Capacitors Meet Thermal and Voltage Stability Industry Requirements

    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

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Understanding Switched Capacitor Converters

    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

    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

    TDK Introduces High Current 80VDC Board-Mount EMI Filters

    Bourns Releases High Heat Tolerant TO-227 Thick Film Resistor

    TDK Increases Current Ratings of Automotive Thin-Film Power Inductors

    Sumida Announces New DC Common Mode Choke Coil Series

    KYOCERA AVX Releases New 3dB Hybrid Couplers

    SCHURTER Unveils High Voltage Fuses for EV Applications

    YAGEO Releases First to Market 750V Aluminum Capacitors

    binder Introduces M9 Compact Circular Connector

    Smolteks CNF-MIM Capacitors Meet Thermal and Voltage Stability Industry Requirements

    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

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Understanding Switched Capacitor Converters

    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

    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

Panasonic Low-loss Power Choke Coil for Automotive ECU

26.1.2021
Reading Time: 4 mins read
A A

Panasonic released an application note on its low-loss power inductor (choke) within the fuel-injection solenoid circuit of an ECU featuring small size, ruggedness, and specifications tailored to the high-ripple-current dc-dc converter.

New inductor from Panasonic specifically targeting automotive engine control units (ECUs), which are increasingly located closer to the engine in what is a hot, vibration-intense, and generally nasty environment. The inductor in the dc-dc converter’s injector-boost circuitry must deal with high ripple currents that are always electrically and thermally stressful and challenging for long-term performance and reliability.

RelatedPosts

NIC Components Extends SMD High Voltage MLCC Offering

Stackpole Offers RoHS Compliant Lead-Free Thick Film Chip Resistors

Smiths Interconnect’s SMD Power Resistors with Heat Sink Qualified to Space Flights

High-ripple-current ECU direct-injection boost circuit example; source: Panasonic

Performance required for injector boost coil:

  • Low-loss and high withstand voltage
  • Small size and large current
  • High vibration resistance

  • High efficiency of direct injection engine (shortening of boost recovery time)
  • ECU space saving
  • Installation of ECU in engine compartment and the integration of mechanical and electronic in-vehicle components

Features of Panasonic’s latest surface-mount automotive power chokes compared to their own predecessors:

  • Halved power loss and doubled high withstand voltage performance compared to conventional products through the use low-loss magnetic materials with high withstand voltage.
  • The downsizing and the reduced number of coils required to be incorporated into ECUs due to the improved performance contribute to ECU space saving.
  • The product eliminates the need for anti-vibration reinforcement as part of the mounting process, reducing the use of reinforcing measures with bonding agents (adhesives).

Detailed explanation of features

Halved power loss and doubled high withstand voltage performance compared to conventional products through the use low-loss magnetic materials with high withstand voltage.

Panasonic has developed new low-loss magnetic materials capable of handling large currents with a high withstand voltage based on metal composite materials using its in-house-developed metallic magnetic materials to commercialize a power choke coil with halved power loss and doubled high withstand voltage performance compared to conventional products.

These features will contribute to the improved performance and downsizing of automotive ECUs.

*Prerequisites: 13Ao-p, frequency 75kHz, Duty 35% triangular wave current
*1. When using two products in parallel Items New product

The downsizing and the reduced number of coils required to be incorporated into ECUs due to the improved performance contribute to ECU space saving.

The in-house-developed magnetic material and winding technology that forms the coil with high precision has enabled compactness and high performance, and the volume ratio has been reduced by 40% compared to the conventional product (1). And the number of components has been reduced compared to the conventional product (2). This contributes to ECU space saving.

The product eliminates the need for anti-vibration reinforcement as part of the mounting process, reducing the use of reinforcing measures with bonding agents (adhesives).

In conventional automotive ECU board mounting processes, reinforcement measures to fix components with bonding agents (adhesives) were necessary for ensuring the high vibration acceleration-resistant performance.
This product employs Panasonic’s original coil winding and forming technologies, which reduce the height of the terminal’s pull-out position down to half compared to the company’s conventional products.
Positioning closer to the mounting circuit board have achieved excellent vibration resistant performance.
This removes the need for anti-vibration reinforcement and contributes to the streamlining of the mounting process.

Example of use

Related

Source: Panasonic

Recent Posts

TDK Increases Current Ratings of Automotive Thin-Film Power Inductors

1.7.2025
18

Sumida Announces New DC Common Mode Choke Coil Series

1.7.2025
12

SCHURTER Unveils High Voltage Fuses for EV Applications

30.6.2025
9

YAGEO Releases First to Market 750V Aluminum Capacitors

30.6.2025
40

YAGEO Expands One Turn Inductors for AI and High-Efficiency Power Applications

27.6.2025
36

Murata Releases Worlds First 10µF/50V Automotive MLCC in 0805 Size

26.6.2025
53

Würth Elektronik Extends High Saturation Flat-Wire Power Inductors Line

26.6.2025
21

Vishay Expands Automotive High Frequency Thin Film Chip Resistors

26.6.2025
24

Advancements and Applications of Switch Capacitor Power Converters

25.6.2025
34

KYOCERA AVX Releases Robust Vertical-Mating Battery Connectors

25.6.2025
10

Upcoming Events

Jul 23
13:00 - 14:00 CEST

PCB design for a Smartwatch

Jul 29
16:00 - 17:00 CEST

Impact of Elevated Voltage and Temperature on Molded Power Inductors in DC/DC converters

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
  • What is a Dielectric Constant and DF of Plastic Materials?

    4 shares
    Share 4 Tweet 0
  • LLC Resonant Converter Design and Calculation

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

    3 shares
    Share 3 Tweet 0
  • How to Design an Inductor

    0 shares
    Share 0 Tweet 0
  • Dual Active Bridge (DAB) Topology Explained

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

    0 shares
    Share 0 Tweet 0
  • Why Low ESR Matters in Capacitor Design

    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