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RE: How to know the motor current?
Dear .Happy new year !1.my question is simple ,and that is would it be possible to get DC current bus from any variable (sort of like VDC bus which is in gMotorvar) if so,which one?2. the other way...
View ArticleHow to know the motor current?
Dear Yanming LuoAs you know we have "gMotorVars.VdcBus_kV " to get the DC bus voltage ,so Do we have any variable for total Current to see the motor current ?thanks for attentionDave.
View ArticleRE: DRV8848: The DRV8848 Vcc rail dips when I have sleep pins floating
Oh I've just noticed that within the datasheet. Just one more question before I investigate the voltage drop. If I have the DRV8848 paralleled and I don't correctly configure the chip for this...
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RE: Suggest a driver which provides an array of 64 outputs in which each...
Hi Esakkimuthu, Thanks for reaching out on E2E!The closest equivalent from a switch perspective is the ULN2003A (7-ch) or the ULN2803A (8-ch). Both devices are low side drivers that can handle 40V,...
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Suggest a driver which provides an array of 64 outputs in which each capable...
Hi,We need to design a printer head driver with 64 output channels in which each channel should be able to source max of 400mA, 40V. Our plan is to implement digital logic like shift register and Latch...
View ArticleRE: DRV2667: Problem with distortion after playing ram waveform
Hi, Maash, I will close this issue for now. But please feel free to provide a feedback if you could solve this issue. Also you may ask for more information about it in case you require it. We will be...
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DRV2667: Problem with distortion after playing ram waveform
Part Number: DRV2667Hi.We are suffering from weird waveform problem. If we run ram waveform we get 5-10ms peak after the control ends. First I tough that the problem is with the ram page having...
View ArticleRE: DRV8303: Over-current mode didn't get corrent current
Hi Anuj, It happens in both situation. The detail issue is the current limit mode will works when the current reach up to round 10A. I detect the OTW signal. When I continued to increase the torque,...
View ArticleRE: How to use API Function(write/read flash) in Motorware proj_lab03?
Dave, We are required to meet certain metrics which won't allow us to keep a thread active without any activity for more than 2 weeks. That is the reason I asked whether we can close this thead. TI...
View ArticleRE: DRV8601: PWM Frequency and Rms 1.8V haptic driving
Onur,DRV2605L has VSSOP package, you could consider this part. Regarding the PWM modulation frequency, it would depend on the actuator you're driving. Basically the actuators only "see" the average of...
View ArticleDRV8301: drv8301-hc-evm rev d_R107, R95...
Part Number: DRV8301I have a drv8301-hc-evm rev d kit and a scheme.I used to run 48V BLDC Motor.Under the motor max current, I know that kit's R107, R95; R108, R105; R113, R103 must be changed because...
View ArticleRE: DRV8873H-Q1EVM: Fault Occured when Open Load Detection is Enabled
Jean-François, In datasheet 7.3.2.4.2 Open-Load Detection in Active Mode (OLA) section, the open load detects the voltage across the FET's body diode. 1. What load do you put on the output? Resistor...
View ArticleDRV8873H-Q1EVM: Fault Occured when Open Load Detection is Enabled
Part Number: DRV8873H-Q1EVMHello everyone,I work on the DRV8873H-Q1EVM.I use it to control this kind of DC Motors: http://www.dinamikrulman.com/upload/pdf/NMB_Brushmotor/SE24P.pdfI'm in full bridge of...
View ArticleRE: DRV10983: Motor speed display
Hey Prarinya, Because our GUI is old and outsourced, it requires a timeline, budget, and scheduling to update to V3.3.5. Unfortunately, we will have to use one of the other methods to calculate RPM. To...
View ArticleRE: DRV8873: iProp Question
Hi Rick, Yes, all 3 are tied to the same nSleep control and all 3 are tied to a separate Disable control from the MSP432. The nSleep would be low when none of the 3 DRV8873 are needed. The disable...
View ArticleDRV8873: iProp Question
Part Number: DRV8873Regarding DRV8873, my understanding from the data sheet is that you can connect the 2 iProp lines together and their currents will add. I have 3 DRV8873 where I use 6 half bridges...
View ArticleRE: BOOSTXL-DRV8301: BoostXL-DRV8301 Motor's Current Sense Circuitry
Zeid, The voltage feedback filter network is specific to FOC and is discussed at length in the following:www.ti.com/.../spruhj1g.pdf section 5.2.3 The current feedback network was just a noise...
View ArticleRE: DRV8303: Over-current mode didn't get corrent current
Hi Anuj, Today I did lots of tests. I found phase voltage will increase noise when increasing torque. When the current reached up to around 10A, the phase peak-to-peak voltage will over 65V. That...
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DRV8303: Over-current mode didn't get corrent current
Part Number: DRV8303Hi,I am using DRV8303 to drive 48V/60A BLDC trapezoidal motor. My FETs Rdson = 4 mohm. When the current runs up to 15Amp, The OC mode start to work. But the over current should be...
View ArticleRE: DRV8838: PWM on PH pin
Shashin, Yes. DRV8838 has the appropriate logic/ delays on the PH pin that would prevent shoot through. Please check t1 and t2 or t3 and t4 value in the datasheet Figure 1. Input and Output Timing for...
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