TMS320F280025: High resolution frequency modulation operation using F280025

user4586590

Part Number: TMS320F280025
Other Parts Discussed in Thread: TIDM-1001, TIDM-02002

Hi,

We are considering the development of the following specifications using your company's microcomputer F280025.
・ Feedback control of LLC resonance converter
・ Frequency range is about 100kHz to 300kHz
・ Frequency modulation control with high resolution

We are looking for a track record of using F280025 for the above specifications.
When we posted to the TI Customer Support Center, we were introduced to your TIDM-1001.
URL: www.tij.co.jp/.../TIDM-1001

Please tell us whether this device is performing frequency modulation control with high resolution and feedback control.
We would appreciate it if you could tell us the reference page if you have any materials.

Thank you for your reply.
Tatsuya

over 4 years ago

+1 Han Zhang6 over 4 years ago

TI__Expert 6795 points

Tatsuya,

As of today, the currently implementation of TIDM-1001 does not have high resolution implemented. However, the F280025C device is capable of implementing variable frequency high resolution PWM, as we support high-res period, compare and dead-time setting.

You can refer to TIDM-02002 for variable frequency HRPWM example on a CLLLC converter. You can also look at TIDA-010054 for high resolution phase shift on a DAB.

Han

0 user4586590 over 4 years ago in reply to Han Zhang6

Prodigy 70 points

Hi Han,

Thanks a lot of all.
We understood that the TIDM-1001 does not have high resolution frequency modulation control.

As an additional question, Is there a user case of using F280025 to operate with high resolution frequency modulation? If you have any, please let us know.

Regards
Tatsuya

+1 Han Zhang6 over 4 years ago in reply to user4586590

TI__Expert 6795 points

Tatsuya,

The TIDM-02002 was based on F280049. You can port the reference to F280025, given it is based on the driverlib API designed for migration. Thanks.

Han

0 user4586590 over 4 years ago in reply to Han Zhang6

Prodigy 70 points

Hi Han,

Thank you for answering the additional questions.
Your answer solved all of my problems.

Thank you for your help.
Tatsuya

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TMS320F280025: High resolution frequency modulation operation using F280025