Soft Saturation | PartQuest™ Explore

Application Area

denis.chudnov.97
Designer237324

denis.chudnov.97

Member for

3 years 9 months

0

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Description

This example shows the performance of an ON Semiconductor NCV8876 Automotive Grade Start-Stop Boost Controller:

http://www.onsemi.com/pub_link/Collateral/NCV8876-D.PDF

For vehicles with Start-Stop capability, the engine (ICE) is turned off during idle periods, for the purpose of fuel economy. But low-voltage nuisance drop-out of key electronic functions must be avoided during engine re-start. The NCV8876 is designed specifically for this purpose. It uses current-mode control, with many integrated functions to reduce the complexity of the external boost circuit.

Simulation results show the output to the load during battery drop-out and recovery. Note that in this application, the output voltage (dark blue waveform) is maintained above 6.4V during the drop-out transient, and regulates at 6.8V during sustained low voltage (4V) battery operation (orange waveform).

This circuit also demonstrates the value of soft-saturation inductor components from Coilcraft:

http://www.coilcraft.com/pdfs/Doc1140_Beyond_the_data_sheet_Part1.pdf

The load current for the XAL4030-332 inductor in this application is 4A during nominal 12V operation. But during boost operation, the current reaches 6.6A peak (light blue waveform). This could saturate a typical inductor if it were sized for the nominal load, resulting in a collapse of the effective inductance. But notice that the actual instantaneous inductance (green waveform) only drops to 2.2uH, for this nominal 3.3uH part. This relatively small percentage drop in inductance can easily be accommodated by the converter design.

About text formats

Copy of NCV8876 - Automotive Start-Stop Boost Controller - on Fri, 10/30/2020 - 19:11

k.elmaallem80
Designer236201

k.elmaallem80

Member for

3 years 11 months

1

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Description

This example shows the performance of an ON Semiconductor NCV8876 Automotive Grade Start-Stop Boost Controller:

http://www.onsemi.com/pub_link/Collateral/NCV8876-D.PDF

For vehicles with Start-Stop capability, the engine (ICE) is turned off during idle periods, for the purpose of fuel economy. But low-voltage nuisance drop-out of key electronic functions must be avoided during engine re-start. The NCV8876 is designed specifically for this purpose. It uses current-mode control, with many integrated functions to reduce the complexity of the external boost circuit.

Simulation results show the output to the load during battery drop-out and recovery. Note that in this application, the output voltage (dark blue waveform) is maintained above 6.4V during the drop-out transient, and regulates at 6.8V during sustained low voltage (4V) battery operation (orange waveform).

This circuit also demonstrates the value of soft-saturation inductor components from Coilcraft:

http://www.coilcraft.com/pdfs/Doc1140_Beyond_the_data_sheet_Part1.pdf

The load current for the XAL4030-332 inductor in this application is 4A during nominal 12V operation. But during boost operation, the current reaches 6.6A peak (light blue waveform). This could saturate a typical inductor if it were sized for the nominal load, resulting in a collapse of the effective inductance. But notice that the actual instantaneous inductance (green waveform) only drops to 2.2uH, for this nominal 3.3uH part. This relatively small percentage drop in inductance can easily be accommodated by the converter design.

About text formats

Copy of NCV8876 - Automotive Start-Stop Boost Controller - on Wed, 09/02/2020 - 16:44

arthurpc.apc
Designer234520

arthurpc.apc

Member for

4 years 1 month

1

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Description

This example shows the performance of an ON Semiconductor NCV8876 Automotive Grade Start-Stop Boost Controller:

http://www.onsemi.com/pub_link/Collateral/NCV8876-D.PDF

For vehicles with Start-Stop capability, the engine (ICE) is turned off during idle periods, for the purpose of fuel economy. But low-voltage nuisance drop-out of key electronic functions must be avoided during engine re-start. The NCV8876 is designed specifically for this purpose. It uses current-mode control, with many integrated functions to reduce the complexity of the external boost circuit.

Simulation results show the output to the load during battery drop-out and recovery. Note that in this application, the output voltage (dark blue waveform) is maintained above 6.4V during the drop-out transient, and regulates at 6.8V during sustained low voltage (4V) battery operation (orange waveform).

This circuit also demonstrates the value of soft-saturation inductor components from Coilcraft:

http://www.coilcraft.com/pdfs/Doc1140_Beyond_the_data_sheet_Part1.pdf

The load current for the XAL4030-332 inductor in this application is 4A during nominal 12V operation. But during boost operation, the current reaches 6.6A peak (light blue waveform). This could saturate a typical inductor if it were sized for the nominal load, resulting in a collapse of the effective inductance. But notice that the actual instantaneous inductance (green waveform) only drops to 2.2uH, for this nominal 3.3uH part. This relatively small percentage drop in inductance can easily be accommodated by the converter design.

About text formats

Copy of NCV8876 - Automotive Start-Stop Boost Controller - on Tue, 06/09/2020 - 19:36

bonsubenjamin
Designer232352

bonsubenjamin

Member for

4 years 4 months

1

designs

1

groups

Dr. Benjamin Bonsu is skilled in building cross-functional teams, demonstrating exceptional communication skills, and making critical decisions during challenges.

Dr. Benjamin Bonsu is an adaptable and transformational leader with an ability to work independently, creating effective presentations, and developing opportunities that further establish organizational goals.

Dr Benjamin Bonsu co-founded the All Nations University Space System Technology Laboratory ([email protected]) to promote space activities in Ghana and successfully managed three historic space related projects which includes the first Ghana satellite (Ghanasat-1) , Amateur ground station, and Cansat project.

Dr Benjamin Bonsu has worked for several international space communities to build satellites such as Horyu-IV satellite project and Birds series constellation satellite project.

Description

This example shows the performance of an ON Semiconductor NCV8876 Automotive Grade Start-Stop Boost Controller:

http://www.onsemi.com/pub_link/Collateral/NCV8876-D.PDF

For vehicles with Start-Stop capability, the engine (ICE) is turned off during idle periods, for the purpose of fuel economy. But low-voltage nuisance drop-out of key electronic functions must be avoided during engine re-start. The NCV8876 is designed specifically for this purpose. It uses current-mode control, with many integrated functions to reduce the complexity of the external boost circuit.

Simulation results show the output to the load during battery drop-out and recovery. Note that in this application, the output voltage (dark blue waveform) is maintained above 6.4V during the drop-out transient, and regulates at 6.8V during sustained low voltage (4V) battery operation (orange waveform).

This circuit also demonstrates the value of soft-saturation inductor components from Coilcraft:

http://www.coilcraft.com/pdfs/Doc1140_Beyond_the_data_sheet_Part1.pdf

The load current for the XAL4030-332 inductor in this application is 4A during nominal 12V operation. But during boost operation, the current reaches 6.6A peak (light blue waveform). This could saturate a typical inductor if it were sized for the nominal load, resulting in a collapse of the effective inductance. But notice that the actual instantaneous inductance (green waveform) only drops to 2.2uH, for this nominal 3.3uH part. This relatively small percentage drop in inductance can easily be accommodated by the converter design.

About text formats

Copy of NCV8876 - Automotive Start-Stop Boost Controller - on Sun, 02/09/2020 - 12:43

radivojevic.djordje
Designer229591

radivojevic.djordje

Member for

4 years 8 months

47

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Description

This example shows the performance of an ON Semiconductor NCV8876 Automotive Grade Start-Stop Boost Controller:http://www.onsemi.com/pub_link/Collateral/NCV8876-D.PDFFor vehicles with Start-Stop capability, the engine (ICE) is turned off during idle periods, for the purpose of fuel economy. But low-voltage nuisance drop-out of key electronic functions must be avoided during engine re-start. The NCV8876 is designed specifically for this purpose. It uses current-mode control, with many integrated functions to reduce the complexity of the external boost circuit.Simulation results show the output to the load during battery drop-out and recovery. Note that in this application, the output voltage (dark blue waveform) is maintained above 6.4V during the drop-out transient, and regulates at 6.8V during sustained low voltage (4V) battery operation (orange waveform).This circuit also demonstrates the value of soft-saturation inductor components from Coilcraft:http://www.coilcraft.com/pdfs/Doc1140_Beyond_the_data_sheet_Part1.pdfThe load current for the XAL4030-332 inductor in this application is 4A during nominal 12V operation. But during boost operation, the current reaches 6.6A peak (light blue waveform). This could saturate a typical inductor if it were sized for the nominal load, resulting in a collapse of the effective inductance. But notice that the actual instantaneous inductance (green waveform) only drops to 2.2uH, for this nominal 3.3uH part. This relatively small percentage drop in inductance can easily be accommodated by the converter design.

About text formats

Copy of NCV8876 - Automotive Start-Stop Boost Controller - on Mon, 02/03/2020 - 16:04

dwarkesh14
Designer229429

dwarkesh14

Member for

4 years 8 months

1

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Description

This example shows the performance of an ON Semiconductor NCV8876 Automotive Grade Start-Stop Boost Controller:http://www.onsemi.com/pub_link/Collateral/NCV8876-D.PDFFor vehicles with Start-Stop capability, the engine (ICE) is turned off during idle periods, for the purpose of fuel economy. But low-voltage nuisance drop-out of key electronic functions must be avoided during engine re-start. The NCV8876 is designed specifically for this purpose. It uses current-mode control, with many integrated functions to reduce the complexity of the external boost circuit.Simulation results show the output to the load during battery drop-out and recovery. Note that in this application, the output voltage (dark blue waveform) is maintained above 6.4V during the drop-out transient, and regulates at 6.8V during sustained low voltage (4V) battery operation (orange waveform).This circuit also demonstrates the value of soft-saturation inductor components from Coilcraft:http://www.coilcraft.com/pdfs/Doc1140_Beyond_the_data_sheet_Part1.pdfThe load current for the XAL4030-332 inductor in this application is 4A during nominal 12V operation. But during boost operation, the current reaches 6.6A peak (light blue waveform). This could saturate a typical inductor if it were sized for the nominal load, resulting in a collapse of the effective inductance. But notice that the actual instantaneous inductance (green waveform) only drops to 2.2uH, for this nominal 3.3uH part. This relatively small percentage drop in inductance can easily be accommodated by the converter design.

About text formats

Virtual Evaluation Board for NCV8876

Takayuki
Designer224194

Takayuki

Member for

5 years

492

designs

4

groups

A member of the PartQuest Explore community.

Description

About text formats

Virtual Evaluation Board for NCV8876

Asuma
Designer139151

Asuma

Member for

7 years 2 months

22

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Description

About text formats

Virtual Evaluation Board for NCV8876

Mike Donnelly
Designer19

Mike Donnelly

Member for

10 years 11 months

1,673

designs

10

groups

Member of the PartQuest Explore Development Team. Focused on modeling and simulation of analog, mixed-signal and multi-discipline systems covering a broad range of applications, including power electronics, controls and mechatronic systems.

Description

About text formats

NCV887720 - Evaluation Board Test

RobertDavis
Designer256

RobertDavis

Member for

9 years 4 months

135

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Terms of Use Cookie Notice Data Privacy Notice

denis.chudnov.97Designer237324

Member for

k.elmaallem80Designer236201

Member for

arthurpc.apcDesigner234520

Member for

bonsubenjaminDesigner232352

Member for

radivojevic.djordjeDesigner229591

Member for

dwarkesh14Designer229429

Member for

TakayukiDesigner224194

Member for

AsumaDesigner139151

Member for

Mike DonnellyDesigner19

Member for

RobertDavisDesigner256

Member for

denis.chudnov.97
Designer237324

k.elmaallem80
Designer236201

arthurpc.apc
Designer234520

bonsubenjamin
Designer232352

radivojevic.djordje
Designer229591

dwarkesh14
Designer229429

Takayuki
Designer224194

Asuma
Designer139151

Mike Donnelly
Designer19

RobertDavis
Designer256