RE: DRV8711 RDIR
Hi CGC, Please look at section 7.2 Functional Block Diagram. Each winding has a torque DAC, a SIN DAC, two comparators, and a current sense amplifier with adjustable gain. This can lead to slight...
View ArticleDRV8711 RDIR
Hello,We are designing a stepper motor driver using the controller DRV8711. The circuit is very similar to the evaluation board DRV8711EVM. Today, we discovered that the connected motor stalls at a...
View ArticleRE: DRV8823 - Motor not moving
Hi Rick,sorry for the long delay - work is challenging a lot during the vacation season.I did try to send 0x003f to the DRV8823 and in deed Aout1 went high to 12V.However Aout2 did not go to GND to...
View ArticleRE: Need help on DRV8711
Hi Rick I got Pin 21: 1.4V Pin 28: 1.4V Pin 30: 40mV Pin 37:1.4V and nFAULT is low How do I fix this?
View ArticleRE: DRV8823 - Motor not moving
Hi Juergen, What voltage did you measure on AOUT2? Have you confirmed continuity to the AOUT2 pin and from AISEN through the resistor to GND? When AOUT1 goes high, AOUT2 should go low if the AOUT2 pin....
View ArticleRE: DRV8823 - Motor not moving
Hi Rick,Getting closer. Seems that I am fighting inrush overcurrent (with a tiny motor).Once the command is sent I hear a very short click.So by reducing ABVref voltage and ramping up current...
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DRV8823 - Motor not moving
Dear experts,I am planning to use a DRV8823 in my project to drive three DC brushed motors and already have problems get it to run on the breadboard.Until now I could not get the motor to drive at...
View ArticleRE: DRV8305: Dwell States
Yes, 1 PWM mode only. What would be a typical dwell time compared to the time between the HALL sensor changes?
View ArticleDRV8305: Dwell States
Is it applicable to use the DRV8305 dwell states for driving a BLDC motor with delta connection of the phases?
View ArticleRE: Motor driver IC for 12V BLDC
Hi George, We will reach out to you to better understand your requirements. Look for a request shortly.
View ArticleRE: DRV3201EVM GUI applications source code
Hi William, I have changed the code as you said. And read all status flags to clear them. DRV3201 registers have set to RESET values. digital IO; CSMode = 1 RSTN = 1 DRVOFF = 0 B_EN = 1 to run...
View ArticleDRV3201EVM GUI applications source code
Hi everbody,I have DRV3201EVM module and DRV8301-LS12-KIT. I am using Hercules TMS570LS12x/11x controlCARD for motor control applications and using TMS570ls1227_sensored_speed_smo solution with...
View ArticleRE: Motor driver IC for 12V BLDC
Hi George, What FETs are being used? What is the target rise and fall times of the FET gates? Please take a look at the DRV8305-Q1. With adjustable IDRIVE and TDRIVE settings, it may be suitable.
View ArticleMotor driver IC for 12V BLDC
Hello team !I'm looking for a motor driver or pre-driver IC for 12V BLDC.Requirements are...- for automotive - operating ambient temperature exceed 125C (about 130C) - gate drive current is 2.5APlease...
View ArticleRE: DRV8834 1/2 stepping or micro stepping issues
Hi Mickey, Can you provide a scope capture of the current when moving? What is the motor model and specifications? Is there a gearbox on the motor? What is VM, the decay mode setting, VREF, and the...
View ArticleDRV8834 1/2 stepping or micro stepping issues
Hi Team,The customer is using DRV8834 at full step mode and their motor will move 1mm per full step. This is working perfectly fine.However,they need to achieve 0.5mm motor movement per step. So they...
View ArticleRE: Control AC 220V single phase Motor Using Microcontroller
Hi Gaurav,Please take a look HERE This reference design is a good starting point for IC and concepts.
View ArticleControl AC 220V single phase Motor Using Microcontroller
Respected Sir,This is Gaurav Kothari from Mumbai, India.I Need a small help regarding how can i control the speed of the 220V AC 4 Amps motor using microcontroller.can you please recommend me any...
View ArticleRE: Recommendation for H-Bridge Driver and Pulse Width Controller for Digital...
Hi Hong, Please take a look at the DRV201 or DRV201A. These devices are targeted for similar applications.
View ArticleRecommendation for H-Bridge Driver and Pulse Width Controller for Digital...
Hi Sir,Any recommendation for H-Bridge Driver and Pulse Width Controller for Digital Camera Micro Modules?The part I looking for is similiar to SiP42104DX-T1-E3.Datasheet:...
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