Integrated Motor Current Driver Solution
Dear Community,I'm developing a board integrating a BLDC Motor driver for current control: actually I'm using an ELMO driver capable of delivering 100V-10A.I need to have a custom circuit to reduce the...
View ArticleRE: DRV8305 Damage
Hi Salih, It appears there is something different on your custom board versus the TIDA-00643. Please try the two boards without the motor, looking for differences. If you see none, then please focus on...
View ArticleClik here to view.
RE: Current Measurement with DRV8303
I'm not sure I'm convinced the current could be so high, but I'm understanding now that the voltage of the sense amplifier needs to be sampled in a time-sensitive manner. An instantaneous measurement...
View ArticleRE: DRV8302 GVDD, AVDD, PVDD all output zero voltage
Hey Rick,Please look at the v4 files in the repository. They are the same as the v3 files with the R7-R9's taken out as per your previous advice.Cheers,
View ArticleRE: Current Measurement with DRV8303
Hi Jared,This appears to be noise. The current should not be able to increase so quickly in an inductor.Do you have the ground of the scope at the resistor ground? Grounds can bounce causing these...
View ArticleRE: DRV8803 PWM duty cycle floating point handling relate issue
Ok thank You Mr.Rick DuncanI will wait for your reply. Thank you for your extended support.Thanks and regardsK.ManjunathanPSG IAS
View ArticleAdapting the DRV8305N BoosterPack Eval Module for low-speed and with Hall...
Folks,I would like to implement a low-cost BLDC motor controller for mechatronics/robotics applications that combines the capabilities of the DRV8305N BoosterPack Eval Module with low-speed (down to...
View ArticleRE: Adapting the DRV8305N BoosterPack Eval Module for low-speed and with Hall...
Hi Mike, Our experts have been contacted. One item to keep in mind is there is no hall sensor pins on the DRV805 board. You will have to wire them in somehow. What do you mean differing hall sensor...
View ArticleRE: Driver for Voice Coil Motor
Hi Wilson Thank you for your reply. We also check about motor drivers continuously. regards
View ArticleRE: Adapting the DRV8305N BoosterPack Eval Module for low-speed and with Hall...
Rick,Thanks for the quick reply.Sorry I wasn't clear. I intend to design a new circuit and PCB layout, starting with the Eval Board design.Re Hall-sensors, I was just wondering out loud if different...
View ArticleRE: General getting-started BLDC driving/control questions
Chris, et al,Thanks for the feedback. After a bit more study and deliberation, it looks like a good starting point for me is the DRV8305N Booster Pack, used as a reference design. I've started a new...
View ArticleGeneral getting-started BLDC driving/control questions
Folks,I'm interested in developing a motor controller/driver for a range of small BLDC motors (5-12v, <1amp) generally with a gear train (100-250x), to be used in small mobile robotic devices for...
View ArticleTIDA-00195 reference design
hello,i have completed the TIDA-00195 reference design.but it doesn't work at 60V test voltage.i assume that the input voltage is too low, and i would like to check the logic of the hardware in a...
View ArticleRE: TIDA-00195 reference design
Hi Chang, We will contact the authors to get the information.
View ArticleRE: BOOST-DRV8305EVM
Hi Rick, When using the BOOST-DRV8305EVM in 3-PWM Mode I observe a delay between the input going high and output going high. Is this the dead time delay? I can easily compensate for the active delay,...
View ArticleBOOST-DRV8305EVM
Hi,I just discovered this Motor Driver Forum. Previously I was posting to the Tiva micro controller forum because I am using the EK-TM4C1294XL processor board.I was doing well developing firmware for...
View ArticleRE: DRV110 for 1000Watts solenoid driver
Hi Kevin,Thank you for your quick reply.. Regarding the capacitance of the Mosfet,Input capacitance - 1137 pF @ Vgs = 0V; Vds = 100V : f = 1MhzOutput Capacitance - 68 pF @ Vgs = 0V; Vds = 100V : f =...
View ArticleRE: DRV8881E / timing requirement
Hi Yaita, There will be some difference between DRV8881 and DRV8835. The propagation delay from input to output of DRV8881 is TYP 450ns in datasheet. Best regards,
View ArticleLd and Lq Inductances in a Permanent magnet motor
How to find Ld and Lq inductances in a Permanent magnet motor? (EMJ 04 PB22 PMSM)I am using BLWS235D(BLDC) 160V, 3000rpm motor along with TMDSHVMMTRPFC kit for my project.Is there any way to find out...
View ArticleRE: DRV8881E / timing requirement
Hi Wilson-san,Thank you for your quick support.I aplogize for overlooking the spec in datasheet.I understood the values of DRV8881E is the following.- propagation delay: 450ns (TYP)- output rise/fall...
View Article