TPIC2060A: Speed and phase control of the spindle output
Part Number: TPIC2060AHello,I am working on finding a high current (~3amps) 3 phase motor drive chip that can achieve speed and phase lock control from 90Hz through 240Hz. We need to be able to update...
View ArticleRE: DRV8701: Maximum frequency of PWM input?
Hi Scott, The recommended upper limit is specified in the datasheet. Fpwm is listed as 100kHz.
View ArticleRE: DRV8432: Vreg=0.48v
Thanks Rick.It was my mistake, as you pointed out. footprint was wrong.I updated the schematic with new footprint.Now voltages are proper.My objective is speed control o f 12v 120w dc motor. I am...
View ArticleDRV8432: Vreg=0.48v
Part Number: DRV8432I am using DRV8432 first time for a motor control application.Gvdd=vdd=12v,Pvdd=12v.I am working in 1PFB mode.M0=0,M1=Vreg,M3=0.RESET_CD=0v.Reset_AB=NC.PWM_B and PWM_B=0.After power...
View ArticleRE: DRV8701: Maximum frequency of PWM input?
Oops, sorry for missing that!! Thanks for setting me straight.Scott
View ArticleDRV8701: Maximum frequency of PWM input?
Part Number: DRV8701I assume that if we want to PWM the input to the DRV8701P, to control the average drive level, we'd hold one of the INx lines low and drive PWM into the other INx line. Assuming...
View ArticleRE: DRV8825: motor driver not work after 2nd time power up...
Hi Peter,Did the nFAULT assert during the second power up?Why is the device being powered down?Did the motor stop? Did the nFAULT assert? If the device is being powered down to recover from a fault,...
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DRV8825: motor driver not work after 2nd time power up...
Part Number: DRV8825Dear Sirs,My customer use DRV8825 for their motor driver.As customer feedback, while the first time power up, the driver and motor work fine.However, they must delay next power up...
View ArticleRE: DRV8711: DRV8711 USB/SPI
Hi Iuri, If you turn off driver power (VM = 0), the parameters are reset. What do you mean "I can use a USB / SPI adapter to parameterize the DRV8711 using the software"? The GUI communicates to the...
View ArticleDRV8711: DRV8711 USB/SPI
Part Number: DRV8711Hello My doubt number 1 is in DIR / STEP mode after I turn off the driver power Will I lose all parameterization done previously? To 2 the parameterization software only...
View ArticleRE: Maximum Fundamental Frequency
Hi Brad, Please see the link e2e.ti.com/.../1933155 I hope this answers your question.
View ArticleMaximum Fundamental Frequency
Hello,I need to drive a a small 24V, 2 amp 2 pole induction motor at 2.3kHz fundamental frequency. Are any of the instaspin development kits capable of this frequency?Thanks,Brad
View ArticleRE: BEST SOLUTION FOR A 48V/200W BLDC MOTOR FOR HANDY TOOL
Hi Rick,Bought from Mouser the DRV8303EVM, very well developed.I installed correctly the CCS, drivers and the InstaSPIN SW.Now I am ready to....wait for your precious support ☺The problem now is:How to...
View ArticleBEST SOLUTION FOR A 48V/200W BLDC MOTOR FOR HANDY TOOL
Hallo,we are developing a new tool based on a 48V brushless motor.This tool is a rotorbital sander, and since this is a palm-style tool, we need to reduce the PCB dimensions as much as possible.We...
View ArticleRE: DRV10975EVM cannot update
Thank you for your advice.As you mentioned the manual procedure link, tried to meet the procedure correctly.but when I connect it with USB, the display and others working well.But when I tried to...
View ArticleDRV10975EVM cannot update
Dear,During using the part #DRV10975EVM, tried to connect with HPA665 board.But it can't pass and the firmware needs to update message popped up as below.The connected <unknown device> requires a...
View ArticleRE: DRV3220-Q1: DRV3220 Boost Converter diagnostic description(OC, OV, UV)
Hello Michael,Thanks for your answer and have some more question as below. If first threshold set by the Rshunt resistor is not actually a fault condition, why DRV3220 switching off the internal low...
View ArticleRE: DRV8711: DRV8711 USB/SPI
Hi Rick Le the DRV8711 only and functional Along with some microcontroller If I want to use it as DIR / STEP I will have to have a microcontroller to keep parameterized whenever power on, ok Are there...
View ArticleRE: DRV10983: Lock 2 on startup
Hi,Thanks - the Phase to Phase Kt value is critical to getting the motor to run at maximum speed - it is set at the motor manufacturer's specified value of 6.4 mV/Hz - I have tried changing it plus and...
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RE: DRV8303EVM: Issue with Speed Ref. POT interfacing
Hi Vatsal,The connection of the speed control pot is incorrect and can lead to a short. Pins 2 and 3 are reversed in the schematic.The best approach at this time is to either remove the pot, or cut the...
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