Hi Adesh,
Thank you for the scope shots.
I used the DRV8307EVM on my bench, and I was able to see duty cycles down to around 4%. This was controlled by a PWM generator on the board which stopped at that duty cycle. The frequency was 30 kHz. The DRV8307…
Part Number: DRV8307 Hello,
I have developed a dual BLDC motor controller PCB. The PCB design basically implements the DRV8307EVM twice on a single PCB excluding the SN74CBT3244CBTCPW switch network. The BLDC motors have single-ended hall sensors wired…
Other Parts Discussed in Thread: DRV8307 , DRV8308 , DRV10970 , DRV8308EVM , DRV8307EVM Hi,
I have a BLDC motor with 3 linear hall-effect sensor. Is there any BLDC motor driver IC that has 3 linear hall-effect sensor input. or is there any decoder IC can decode…
Hi Russell,
Are you using the DRV8307EVM? If not, can you provide a schematic?
What is your system voltage?
What is the time between LOCKn and the device losing lock? Are you monitoring FAULTn?
What are you motor parameters?
Other Parts Discussed in Thread: DRV8307EVM Hi,
My customer tries to operate motor with DRV8307EVM. They use the hall element. it is "HW-105W". VM=24V.
At this case, What are we select at JP3 and JP4? I think think that we select the following…
Hi,
I am trying to drive my bldc motor with my own drv8307 board and DRV8307 EVM board. My bldc motor normal current is 1.45 A ( and it draws this normal current with DRV8307EVM board and there is no problem with DRV8307EVM board) , but with my own board…
Hello Adarsh,
What large current draw value are you expecting in your new board? what is the current value under the same conditions in the DRV8307EVM?
Do you have the same layout as the DRV8703EVM on your board? if so, can you set PWM input of your…
Part Number: DRV8307 I need some help with my custom board design.
I have been using the DRV8307EVM board to drive a 24V motor, rated 8.6A at 6000RPM. I need to drive this motor at 5000RPM max.
When I use the DRV8307EVM board, I can go up to about 4000…
Other Parts Discussed in Thread: DRV8307EVM , DRV8307 Hi,
My cutomer is using DRV8307EVM with customer motor. This motor is operated at EVM. But motor is hunting, and speed can not be up even if PWM duty is up. Please see the attached file. This is waveform…
Other Parts Discussed in Thread: DRV8307 , DRV8307EVM , CSD88537ND Hi there,
I'm using the DRV8307 to drive a 24V rated BLDC motor. I was able to drive it using the DRV8307EVM but i'm having some issues when trying to drive the same motor on my board.…