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DRV8307 bldc motor drive problem
Hi,I am trying to drive bldc motor with drv8307 ic on my own board. When i drive motor with DRV8307EVM board, the motor draws its normal current 1.45A. But when i drive motor with my own board the...
View ArticleRE: DRV8432 Maximum shutdown Temperatur
Hi Sebastian, How are you measuring this shutdown temperature? The driver will enter thermal shutdown when the junction temperature is 150°C, not the case temperature. Our recommended measurement...
View ArticleDRV8432 Maximum shutdown Temperatur
HI,we are using a DRV8432 in parallel mode. While driving in extrem condition (45°C ambient temperature, maximum current) the cooling system is working on top . Most of our devices work successful...
View ArticleRE: PWM INL_C with different DTC Register
Hi Wilson, Ok, I will make a new layout follow EVM board, and the drv8301 boostpack PCB design.Thank you for your help.Best regards,amos
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PWM INL_C with different DTC Register
Hi all, I am transplanting from "C2000 LaunchPad XL TMS320F28027F + BOOSTXL-DRV8301 REVB" to my board.The attachment is my schematic and layout(with Protel 99SE).I use MotorWare Lab3a to do adc...
View ArticleRE: DRV8824 Isense pin open
Hi Naoki, There is Absolute Maximum Ratings of Isense with 0.8V. So this is not allowed. If you don't use Isense (I don't think there is any chance not using it), just short to GND, no floating. Best...
View ArticleDRV8824 Isense pin open
Hello,Our customer uses the DRV8824, has a question.If the Isense pin of the DRV8824 is open, is the DRV8824 damaged?I think the H-bridge are ON, the voltage of source terminal of the low side FET is...
View ArticleRE: DRV8711 Register Optimization
Hi Ernest, 1) Is there a way to read out the Indexer position? Or is the only way to know indexer is to RESETn (to get 45-degrees) and use the central brain to count pulses. Unfortunately, there is no...
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RE: Conducted Emission compliance of design using DRV110.
Premankar, Since you cannot increase the X2 capacitor, can you try increasing the DC bus capacitor and see what changes it provides.Also, could you increase C16 and C17. Recommended value is 4.7uF each...
View ArticleRE: Mathworks FOC on LAUNCHXL-F28027 + BOOSTXL-DRV8301
There is also a follow-up video which shows control of two 3-phase, brushless motors using an F28069 LaunchPad , two BOOSTXL-8301 Booster Packs, 2MTR-DYNO and with MathWorks Simulink and TI C2000...
View ArticleMathworks FOC on LAUNCHXL-F28027 + BOOSTXL-DRV8301
Interested in Field-Oriented Control (FOC) and motor solutions? Then check out this solution from MathWorks on how to implement closed-loop FOC to regulate speed and torque of a three-phase Permanent...
View ArticleRE: DRV8301 PVDD1 vs PVDD2
Hi Jesse, Just so we are in sync, what revision of the kit are you using? Where did you find the references to PVDD1 and PVDD2 on the DRV8301-69M kit? Thanks.
View ArticleRE: DRV8301 PVDD1 vs PVDD2
My board says DRV8301-HC-EVM Rev D. The board does have two PVDD posts and 2 GND posts, I assumed there was no difference between them. I have just seen PVDD1 and PVDD2 referenced on this forum as well...
View ArticleRE: DRV8301 PVDD1 vs PVDD2
HI Jesse, Thanks for the information. There is no difference between the PVDD posts on the board. The schematics are available through ControlSUITE. Type in DRV830x in the search window. From there the...
View ArticleRE: DRV8301 PVDD1 vs PVDD2
Just so i am understanding correctly there is a difference on the DRV8301 but not the DRV8301-HC-EVM Rev D?
View ArticleRE: DRV8301 PVDD1 vs PVDD2
Hi Jesse, Correct. If desired PVDD1 (gate driver supply) and PVDD2 (buck supply) of the DRV8301 can be connected to different voltages when creating a board. For the DRV8301-HC-EVM Rev D, the pins were...
View ArticleDRV8301 PVDD1 vs PVDD2
Excuse my ignorance but what is the difference between PVDD1 and PVDD2 on the DRV8301-69M kit?Why would i use one or the other?Which one is which?Thank you in advance
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RE: DRV8711 Register Optimization
Hi Rick,1) The previous waveforms the BEMF trace was DRV8711 pin 20 (pin called "BEMF"). 2) "...Can you provide a scope capture of both the BEMF of A and B windings..."See below; is this what you...
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RE: DRV8711 Register Optimization
Hi Ernest,Yes, this is what I wanted. The signal will have to be zoomed, but it appears that the area of interest is in this oval below.The I_A current has reached 100%, so the I_B current should be...
View ArticleRE: DRV8840 as Peltier Controller (12V,3A)
Which are the PWM pins mentioned in datasheet? Datasheet Quote :" The DRV8840 device contains one H-bridge motor driver with current-control PWM circuitry. A block diagram of the motor control...
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