RE: Driver and setup for 36V, 5.5A BLDC controlled by arduino
Thanks, Phil. The reference design definitely pointed me in the right direction. In your experience, have you found that having the hall sensor data processed by an external microcontroller caused any...
View ArticleRE: DRV3201-Q1 Fault detect function during Loss of clock detection test/VS...
Hi Ushikubo-san,During the Loss of Clock/VS Comparator tests, all of the monitors work, except for VS Undervoltage.Regards,Will Toth
View ArticleRE: Open BOOSTXL-DRV8305EVM HW files in Eagle
I second this request - it would be hugely helpful to be able to open the *.SchDoc and *.PcbDoc files with Eagle, as I simply cannot afford Altium!! Any help here would be much appreciated! -asifjahmed
View ArticleOpen BOOSTXL-DRV8305EVM HW files in Eagle
Team,I'm using a LAUNCHXL-F28027F with a BOOSTXL-DRV8305EVM and would like to build a custom board that merges the designs using Eagle. I have been able to open the design files for the...
View ArticleRE: Driver and setup for 36V, 5.5A BLDC controlled by arduino
The minimum amount of lag in the DRV8305 between a change on a INx pin to a change on the gate drive pin is approximately 515 ns. For most applications this is negligible. However, if your controller...
View ArticleRE: Driver and setup for 36V, 5.5A BLDC controlled by arduino
Got it! Seems like I'll have to do some more digging into the firmware side of things but not a problem. The last question is that I'd like to move away from using Hall sensors for position, since the...
View ArticleRE: Full H-Bridge Driver for LED switch 60VDC at 2A
Hi Yiding, I think the closest device we have that could meet the 60V supply is the DRV8844. This device has four internal half bridges but can be utilized as two integrated H-Bridges. Each of these...
View ArticleFull H-Bridge Driver for LED switch 60VDC at 2A
Hello Team,I am working on a project to drive 2 LED light-sheets with a full H-bridge.I need to switch 60VDC at 2A, switching frequency is 2KHz to 4KHz and minimum pulse width is 2.5us.I am looking...
View ArticleRE: Driver and setup for 36V, 5.5A BLDC controlled by arduino
The reference design below outlines how the DRV8303 was used in a sensorless BLDC control scheme. This should have a relatively solid explanation of how to design a sensorless bldc system using our...
View ArticleRE: Driver and setup for 36V, 5.5A BLDC controlled by arduino
Exactly what I was looking for. Thanks for your help. Looking forward to working out this challenge!
View ArticleDriver and setup for 36V, 5.5A BLDC controlled by arduino
Hi,I'm still very new to working with BLDC motors, but would like to control a 3 phase, 36V, 5.5A peak current motor directly through an Arduino Uno. I'm thinking of using a DRV3801. My current system...
View ArticleRE: DRV8308 register setting
Patrick, please see Section 3 of the User's Guide for info on how to set FILK/COMPK. http://www.ti.com/lit/ug/slvua41e/slvua41e.pdfThe pole and zero frequencies for the closed-loop control system are...
View ArticleDRV8308 register setting
Hello, if customer would like to use external clock to change motor speed, how to setting FILK1 / FILK2 / COMPK1 / COMPK2 register? Another, Desired pole frequency means...
View ArticleRE: some Serious problem for drv8812
Thank you Rick I Known DRV8812EVM DAC mode to drive drive Stepper motor but in my sch I use PWM mode to to drive Stepper motor. I found if pin23 20 input fixed PWM （Frequency any period are all not...
View ArticleDRV8305 Reference Design Questions
Hello -I have a couple of questions regarding reference designs using the DRV8305 (namely the BOOSTXL-DRV8305 and TIDA-00643.1) Both the BOOSTXL-DRV8305 and the TIDA-00643 reference circuit use a...
View ArticleRE: DRV8803 with PWM input maifunctioning
Thank you Sir,i have not connected the nENABEL pin to Ground(Active low), will it be the cause of the problem. I will try as you directed and post the results Sir.Both the solenoids are not fully open...
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RE: DRV3201-Q1 Fault detect function during Loss of clock detection test/VS...
Hello Will-san, Thank you for your answer. Your answer is “all of the monitors work, except for VS Undervoltage”.Datasheet P21 explain “The VS undervoltage and overvoltage comparators can be checked...
View ArticleDRV3201-Q1 Fault detect function during Loss of clock detection test/VS...
Hello, Please advise if following fault detection works or not during Loss of clock detection test/VS comparator test. 1)VS undervoltage 2)VS overvoltage 3)Boost converter undervoltage 4)HS VDS error...
View ArticleRE: DRV10983 - small motor but tripping out at 50%
Thanks Seil,Doubling the frequency got rid of the surging - I had to increase the open loop current limit to get it to start reliably, but that is no problem. Oops! - I hadn't spotted that 1000 Hz was...
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